LM335 Temperature Sensor: Alternative, Pinout and Datasheet
Tube Analog, Local Surface Mount -40°C~100°C Analog Voltage ±1°C 10mV/°C 1 (Unlimited)









Tube Analog, Local Surface Mount -40°C~100°C Analog Voltage ±1°C 10mV/°C 1 (Unlimited)
Hi, fellas. Welcome to the new post today. LM335 is an Integrated Circuit (IC) for precise temperature sensors. This article mainly introduces alternative, pinout, datasheet, and other detailed information about STMicroelectronics LM335.

How to use LM335 Temp Sensor
LM335 Description
LM335 sensor is a precision temperature sensor that can be easily calibrated. It has a breakdown voltage directly proportional to absolute temperature at 10mV/°K. LM335 has a low dynamic impedance. LM-335 operates on a current range of 400uA-5mA having resistance less than 1 ohm.
LM335 operates as two-terminal Zener diode. At the temperature ranging from -40 degree Celsius to 100 degree Celsius, LM335 can be used for each type of temperature sensing purposes. This device is available in different dimensions and in different sizes.
LM335 is most commonly available in the market due to its unique features including e.g. large temperature range, cost-effectiveness, low dynamic resistance, initial accuracy up to 1 degree Celsius. LM335 can be used at several different places. Its applications include Heat Ventilation and Air Conditioning (HVAC), power supplies, battery management systems, home appliances, embedded systems, etc.
LM335 Pinout

LM335 Pinout

LM335 Pin Function
LM335 CAD Model

LM335 Symbol

LM335 Footprint

LM335 3D Model
LM335 Features
●Cheap and Easy to Calibrate
●Dynamic Impedance is less than 1 ohms.
●200 °C Over the range
●1°C Initial Accuracy Available
●Directly calibrated to the kelvin temperature scale
●Operating current range 400uA to 5mA
●Low cost
Specifications
- TypeParameter
- Mount
In electronic components, the term "Mount" typically refers to the method or process of physically attaching or fixing a component onto a circuit board or other electronic device. This can involve soldering, adhesive bonding, or other techniques to secure the component in place. The mounting process is crucial for ensuring proper electrical connections and mechanical stability within the electronic system. Different components may have specific mounting requirements based on their size, shape, and function, and manufacturers provide guidelines for proper mounting procedures to ensure optimal performance and reliability of the electronic device.
Surface Mount - Mounting Type
The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.
Surface Mount - Package / Case
refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.
8-SOIC (0.154, 3.90mm Width) - Number of Pins8
- Test Conditions25°C (-40°C ~ 100°C)
- Operating Temperature
The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.
-40°C~100°C - Packaging
Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.
Tube - JESD-609 Code
The "JESD-609 Code" in electronic components refers to a standardized marking code that indicates the lead-free solder composition and finish of electronic components for compliance with environmental regulations.
e4 - Part Status
Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.
Discontinued - Moisture Sensitivity Level (MSL)
Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures
1 (Unlimited) - Number of Terminations8
- ECCN Code
An ECCN (Export Control Classification Number) is an alphanumeric code used by the U.S. Bureau of Industry and Security to identify and categorize electronic components and other dual-use items that may require an export license based on their technical characteristics and potential for military use.
EAR99 - Terminal Finish
Terminal Finish refers to the surface treatment applied to the terminals or leads of electronic components to enhance their performance and longevity. It can improve solderability, corrosion resistance, and overall reliability of the connection in electronic assemblies. Common finishes include nickel, gold, and tin, each possessing distinct properties suitable for various applications. The choice of terminal finish can significantly impact the durability and effectiveness of electronic devices.
Nickel/Palladium/Gold (Ni/Pd/Au) - Base Part Number
The "Base Part Number" (BPN) in electronic components serves a similar purpose to the "Base Product Number." It refers to the primary identifier for a component that captures the essential characteristics shared by a group of similar components. The BPN provides a fundamental way to reference a family or series of components without specifying all the variations and specific details.
LM335 - Output Voltage
Output voltage is a crucial parameter in electronic components that refers to the voltage level produced by the component as a result of its operation. It represents the electrical potential difference between the output terminal of the component and a reference point, typically ground. The output voltage is a key factor in determining the performance and functionality of the component, as it dictates the level of voltage that will be delivered to the connected circuit or load. It is often specified in datasheets and technical specifications to ensure compatibility and proper functioning within a given system.
3.04V - Output Type
The "Output Type" parameter in electronic components refers to the type of signal or data that is produced by the component as an output. This parameter specifies the nature of the output signal, such as analog or digital, and can also include details about the voltage levels, current levels, frequency, and other characteristics of the output signal. Understanding the output type of a component is crucial for ensuring compatibility with other components in a circuit or system, as well as for determining how the output signal can be utilized or processed further. In summary, the output type parameter provides essential information about the nature of the signal that is generated by the electronic component as its output.
Analog Voltage - Operating Supply Voltage
The voltage level by which an electrical system is designated and to which certain operating characteristics of the system are related.
3.04V - Max Supply Voltage
In general, the absolute maximum common-mode voltage is VEE-0.3V and VCC+0.3V, but for products without a protection element at the VCC side, voltages up to the absolute maximum rated supply voltage (i.e. VEE+36V) can be supplied, regardless of supply voltage.
3.91V - Min Supply Voltage
The minimum supply voltage (V min ) is explored for sequential logic circuits by statistically simulating the impact of within-die process variations and gate-dielectric soft breakdown on data retention and hold time.
2.95V - Termination Type
Termination Type in electronic components refers to the method used to connect the component to a circuit board or other electronic devices. It specifies how the component's leads or terminals are designed for soldering or mounting onto a PCB. Common termination types include through-hole, surface mount, and wire lead terminations. The termination type is an important consideration when selecting components for a circuit design, as it determines how the component will be physically connected within the circuit. Different termination types offer varying levels of durability, ease of assembly, and suitability for specific applications.
SOLDER - Operating Supply Current
Operating Supply Current, also known as supply current or quiescent current, is a crucial parameter in electronic components that indicates the amount of current required for the device to operate under normal conditions. It represents the current drawn by the component from the power supply while it is functioning. This parameter is important for determining the power consumption of the component and is typically specified in datasheets to help designers calculate the overall power requirements of their circuits. Understanding the operating supply current is essential for ensuring proper functionality and efficiency of electronic systems.
1mA - Output Current
The rated output current is the maximum load current that a power supply can provide at a specified ambient temperature. A power supply can never provide more current that it's rated output current unless there is a fault, such as short circuit at the load.
450μA - Resolution
Resolution in electronic components refers to the smallest increment of measurement or change that can be detected or represented by the component. It is a crucial specification in devices such as sensors, displays, and converters, as it determines the level of detail or accuracy that can be achieved. For example, in a digital camera, resolution refers to the number of pixels that make up an image, with higher resolution indicating a greater level of detail. In analog-to-digital converters, resolution is the number of discrete values that can be represented in the digital output, determining the precision of the conversion process. Overall, resolution plays a significant role in determining the performance and capabilities of electronic components in various applications.
10mV/°C - Sensor Type
In electronic components, the parameter "Sensor Type" refers to the specific type of sensor technology used in a particular component to detect and measure physical phenomena such as light, temperature, pressure, motion, or proximity. Different sensor types utilize various principles and mechanisms to convert the detected input into an electrical signal that can be processed by the electronic component. Common sensor types include photodiodes, thermistors, accelerometers, and proximity sensors, each designed for specific applications and environments. Understanding the sensor type is crucial for selecting the right component for a given task and ensuring accurate and reliable sensing capabilities in electronic systems.
Analog, Local - Linearity
In electronic components, linearity refers to the relationship between the input and output signals of the component. A component is said to be linear if its output is directly proportional to its input over a specified range. In other words, when the input signal changes, the output signal changes in a consistent and predictable manner without introducing distortion or non-linear effects.Linearity is an important parameter in electronic components such as amplifiers, filters, and sensors, as it determines the accuracy and fidelity of signal processing. Non-linearities in components can lead to signal distortion, harmonic generation, and other undesirable effects that can degrade the performance of electronic systems.Engineers often characterize the linearity of components by measuring parameters such as gain error, harmonic distortion, and intermodulation distortion. By ensuring that components exhibit good linearity characteristics, designers can create electronic systems that accurately process signals and faithfully reproduce the desired output.
1 Cel - Sensors/Transducers Type
In electronic components, the parameter "Sensors/Transducers Type" refers to the specific type of sensor or transducer that is integrated into the component. Sensors are devices that detect changes in physical properties and convert them into electrical signals, while transducers are devices that convert one form of energy into another. The type of sensor or transducer used in an electronic component can vary widely depending on the intended application, such as temperature sensors, pressure sensors, proximity sensors, accelerometers, and more. Understanding the Sensors/Transducers Type parameter is crucial for selecting the right component for a particular electronic system or device, as different types of sensors/transducers have different functionalities and performance characteristics.
TEMPERATURE SENSOR,ANALOG,VOLTAGE OUTPUT - Max Supply Voltage (DC)
The parameter "Max Supply Voltage (DC)" in electronic components refers to the maximum voltage that can be safely applied to the component without causing damage. This specification is crucial for ensuring the reliable operation and longevity of the component within a given circuit. Exceeding the maximum supply voltage can lead to overheating, breakdown of internal components, or even permanent damage. It is important to carefully adhere to this specification when designing or using electronic circuits to prevent potential failures and ensure the safety of the components.
40V - Min Supply Voltage (DC)
The parameter "Min Supply Voltage (DC)" in electronic components refers to the minimum voltage level required for the component to operate properly. It indicates the lowest voltage that can be safely applied to the component without causing damage or malfunction. This parameter is crucial for ensuring the reliable and stable operation of the component within its specified operating range. It is important for designers and engineers to adhere to the specified minimum supply voltage to prevent potential issues such as erratic behavior, reduced performance, or permanent damage to the component.
5V - Housing
Housing in electronic components refers to the physical enclosure that protects the internal circuitry and components from environmental factors such as dust, moisture, and mechanical damage. It provides structural support and electrical insulation while facilitating heat dissipation. The design and materials used for housing are crucial for the reliability and performance of the electronic device, as they impact factors like thermal management, electromagnetic interference, and overall aesthetics.
PLASTIC - Accuracy - Highest (Lowest)
In electronic components, "Accuracy - Highest (Lowest)" refers to the range within which the actual value of a parameter can deviate from the ideal or specified value. The term "Highest" indicates the upper limit of this range, while "Lowest" indicates the lower limit. For example, if a component has an accuracy of ±5%, the highest accuracy would mean that the actual value could be within 5% above the specified value, while the lowest accuracy would mean it could be within 5% below the specified value. This parameter is crucial for ensuring the reliability and performance of electronic devices by determining how closely the component's output matches the desired value.
±1°C - Sensing Temperature - Local
Sensing Temperature - Local refers to the capability of an electronic component to measure the temperature in its immediate environment or vicinity. This parameter is crucial for applications that require monitoring of temperature for performance, safety, or stability purposes. It often involves temperature sensors integrated within components like microcontrollers, power regulators, or other integrated circuits. The local sensing allows for accurate temperature readings that help in adjusting operational conditions, ensuring optimal performance, and preventing thermal-related failures.
-40°C~100°C - Accuracy-Max
Accuracy-Max refers to the maximum permissible error in the output of an electronic component or system, typically expressed as a percentage of the nominal value. It indicates the extent to which the measured or calculated value can deviate from the true value under specified conditions. This parameter is crucial for ensuring reliable performance, especially in applications where precision is critical. A lower Accuracy-Max signifies better accuracy and higher quality in measurement and control processes.
1 Cel - Height1.25mm
- Length4.9mm
- Width3.9mm
- REACH SVHC
The parameter "REACH SVHC" in electronic components refers to the compliance with the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulation regarding Substances of Very High Concern (SVHC). SVHCs are substances that may have serious effects on human health or the environment, and their use is regulated under REACH to ensure their safe handling and minimize their impact.Manufacturers of electronic components need to declare if their products contain any SVHCs above a certain threshold concentration and provide information on the safe use of these substances. This information allows customers to make informed decisions about the potential risks associated with using the components and take appropriate measures to mitigate any hazards.Ensuring compliance with REACH SVHC requirements is essential for electronics manufacturers to meet regulatory standards, protect human health and the environment, and maintain transparency in their supply chain. It also demonstrates a commitment to sustainability and responsible manufacturing practices in the electronics industry.
No SVHC - Radiation Hardening
Radiation hardening is the process of making electronic components and circuits resistant to damage or malfunction caused by high levels of ionizing radiation, especially for environments in outer space (especially beyond the low Earth orbit), around nuclear reactors and particle accelerators, or during nuclear accidents or nuclear warfare.
No - RoHS Status
RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.
ROHS3 Compliant - Lead Free
Lead Free is a term used to describe electronic components that do not contain lead as part of their composition. Lead is a toxic material that can have harmful effects on human health and the environment, so the electronics industry has been moving towards lead-free components to reduce these risks. Lead-free components are typically made using alternative materials such as silver, copper, and tin. Manufacturers must comply with regulations such as the Restriction of Hazardous Substances (RoHS) directive to ensure that their products are lead-free and environmentally friendly.
Lead Free
LM335 Alternatives
| Part Number | Description | Manufacturer |
| LM335Z/NOPBSENSORS/TRANSDUCERS | Analog Temperature Sensor, ANALOG TEMP SENSOR-VOLTAGE, 1Cel, ROUND, THROUGH HOLE MOUNT, PLASTIC, TO-92, 3 PIN | National Semiconductor Corporation |
| LM335AZSENSORS/TRANSDUCERS | Analog Temperature Sensor, ANALOG TEMP SENSOR-VOLTAGE, 2.95-3.01V, 1Cel, ROUND, THROUGH HOLE MOUNT, PLASTIC, TO-92, 3 PIN | National Semiconductor Corporation |
| LM335ZSENSORS/TRANSDUCERS | Precision Temperature Sensor | STMicroelectronics |
| LM335AZ/NOPBSENSORS/TRANSDUCERS | Analog Temperature Sensor, ANALOG TEMP SENSOR-VOLTAGE, 2.95-3.01V, 1Cel, ROUND, THROUGH HOLE MOUNT, PLASTIC, TO-92, 3 PIN | National Semiconductor Corporation |
How to use LM335?
Using an LM335 sensor is easy, just connect the circuit as per the below circuit diagram. There are two ways to use LM335 sensor, one is a basic temperature sensor and another is calibrated. To calibrate LM335 connect the ADJ pin to a 10K Potentiometer and adjust accordingly. When LM335 is calibrated at 25°C, it has typically less than 1°C error over 100°C. It gives a linear output.

LM335 Layout Example

LM335 Layout Example
LM335 Applications
●Used in Power Supplies
●Used in Battery management
●Used in HVAC
●Used in Appliances
LM335 Package

LM335 Package
LM335 Manufacturer
STMicroelectronics is a French-Italian multinational electronics and semiconductors manufacturer headquartered in Plan-les-Ouates near Geneva, Switzerland.
The company resulted from the merger of two government-owned semiconductor companies in 1987: "Thomson Semiconductors" of France and "SGS Microelettronica" of Italy.
It is commonly called "ST", and it is Europe's largest semiconductor chip maker based on revenue. While STMicroelectronics corporate headquarters and the headquarters for the EMEA region are based in the Canton of Geneva, the holding company, STMicroelectronics N.V. is incorporated in the Netherlands.
The company's US headquarters is in Coppell, Texas. Headquarters for the Asia-Pacific region is in Singapore whilst Japan and Korea operations are headquartered in Tokyo. The company headquarters for the China region is in Shanghai.
Trend Analysis
Datasheet PDF
- Datasheets :
Parts with Similar Specs
- ImagePart NumberManufacturerPackage / CaseNumber of PinsMountOperating TemperatureResolutionMin Supply VoltageMin Supply Voltage (DC)Max Supply VoltageView Compare
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8
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10mV/°C
2.95 V
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