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Littelfuse Time Delay Relays
Product | Inventory | Pricing(USD) | Quantity | Datasheet | RoHS | Lifecycle Status | Mount | Mounting Type | Package / Case | Supplier Device Package | Material | Approvals | Cable Types | Current - Continuous Drain (Id) @ 25℃ | Drive Voltage (Max Rds On, Min Rds On) | Frequency-Self-Resonant | Inductance Frequency-Test | Lead Free Status / RoHS Status | Manufacturer | Manufacturer Lifecycle Status | Manufacturer Part Number | Material-Core | Power Dissipation (Max) | RoHS | Timing Range | Operating Temperature | Packaging | Series | Size / Dimension | Tolerance | Part Status | Moisture Sensitivity Level (MSL) | Termination | Type | Color | Technology | Shielding | Current Rating | Inductance | DC Resistance (DCR) | Q @ Freq | FET Type | Rds On (Max) @ Id, Vgs | Vgs(th) (Max) @ Id | Current - Saturation | Input Capacitance (Ciss) (Max) @ Vds | Gate Charge (Qg) (Max) @ Vgs | Drain to Source Voltage (Vdss) | Vgs (Max) | Coil Voltage | Includes | 1st Connector | 2nd Connector | Cable Diameter | Fiber Type | For Measuring | FET Feature | LED | Bend Radius | Mode of Operation | Features | Contacts | Height Seated (Max) | Length | Ratings |
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 KRDS231 Littelfuse | In Stock | - | - | - | - | Surface | - | - | - | CE, CSA, UL | - | - | - | - | - | - | SSAC | - | KRDS231-SSAC | - | - | - | 1 | - | - | Fluke Connect™ | - | - | Active | - | 0.250 in Flat Blade | Infrared Camera, Thermal Imager | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 24 VAC, 24 VDC | Adapter, Battery, Cable, Case, Current Module, Manual, Multimeter, SD Card, Software | - | - | - | - | Temperature (Non-Contact) | - | - | - | One-Shot | - | SPDT | - | - | - | ||
THDS624C Littelfuse | In Stock | - | - | - | - | Surface | - | - | - | CE, CSA, UL | Twin Zip | - | - | - | - | -- | SSAC | - | THDS624C-SSAC | - | - | - | 1 | - | - | -- | - | - | Obsolete | - | 0.250 in Flat Blade | Multimode, Duplex | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 230 VAC | - | ST | ST | -- | 62.5/125 | - | - | - | -- | One-Shot | Riser | 1NO | - | - | -- | ||
THDB4180SA Littelfuse | In Stock | - | - | - | - | Surface | - | - | Nylon | CE, CSA, UL | - | - | - | - | - | -- | SSAC | - | THDB4180SA-SSAC | - | - | - | 80 | - | - | H-300C | - | - | Obsolete | -- | 0.250 in Flat Blade | - | Black | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 120 VAC | - | - | - | - | - | - | - | T1 | - | Off Delay | - | 1NO | - | 0.455 (11.56mm) | - | ||
HRD3431B Littelfuse | In Stock | - | - | - | - | Through Hole | Radial | -- | - | CE, CSA, UL | - | - | - | -- | 1kHz | - | SSAC | - | HRD3431B-SSAC | Ferrite | - | - | 1 | -55°C ~ 125°C | -- | IHM-2 | 1.000 L x 0.500 W (25.40mm x 12.70mm) | ±10% | Active | - | 0.250 in Flat Blade | -- | - | - | Unshielded | 350mA | 8.2mH | 12.8 Ohm Max | -- | - | - | - | -- | - | - | - | - | 120 VAC | - | - | - | - | - | - | - | - | - | Repeat Cycle | -- | SPDT | 0.560 (14.22mm) | - | -- | ||
TS42120 Littelfuse | In Stock | - | - | - | - | Through Hole | Axial | Axial | - | CE, CSA, UL | - | - | - | -- | 1kHz | - | SSAC | - | TS42120-SSAC | Ferrite | - | - | 20 | -55°C ~ 125°C | -- | IHD | 0.460 Dia x 0.900 L (11.68mm x 22.86mm) | ±15% | Active | - | 0.250 in Flat Blade | Wirewound | - | - | Unshielded | 2.5A | 68µH | 59 mOhm Max | -- | - | - | - | 2.1A | - | - | - | - | 24 VAC | - | - | - | - | - | - | - | - | - | On Delay | -- | 1NC | -- | - | -- | ||
KSDB612M Littelfuse | In Stock | - | - | - | - | Surface Mount | Nonstandard | -- | - | CE, CSA, UL | - | - | - | -- | 1kHz | - | SSAC | - | KSDB612M-SSAC | Ferrite | - | - | 2 | -55°C ~ 125°C | Bulk | IHSM-5832 | 0.640 L x 0.320 W (16.26mm x 8.13mm) | ±15% | Active | - | 0.250 in Flat Blade | -- | - | - | Unshielded | 200mA | 2.7mH | 11.29 Ohm Max | -- | - | - | - | 130mA | - | - | - | - | 230 VAC | - | - | - | - | - | - | - | - | - | Off Delay | - | 1NO | 0.285 (7.24mm) | - | -- | ||
ESD52240 Littelfuse | In Stock | - | - | - | - | Through Hole | Axial | Axial | - | CE, CSA, UL | - | - | - | -- | 1kHz | - | SSAC | - | ESD52240-SSAC | Ferrite | - | - | 1 | -55°C ~ 125°C | -- | IHD | 0.460 Dia x 0.900 L (11.68mm x 22.86mm) | ±15% | Active | - | 0.250 in Flat Blade | Wirewound | - | - | Unshielded | 1.6A | 150µH | 129 mOhm Max | -- | - | - | - | 1.4A | - | - | - | - | 24 VAC | - | - | - | - | - | - | - | - | - | Delayed Interval | -- | - | -- | - | -- | ||
THD4B611S Littelfuse | In Stock | - | - | - | - | Surface Mount | 1812 (4532 Metric) | 1812 | - | CE, CSA, UL | - | - | - | 12MHz | 2.52MHz | - | SSAC | - | THD4B611S-SSAC | Ferrite | - | - | 1 | -55°C ~ 125°C | Tape & Reel (TR) | ISC-1812 | 0.177 L x 0.126 W (4.50mm x 3.20mm) | ±10% | Active | - | 0.250 in Flat Blade | Wirewound | - | - | Shielded | 202mA | 33µH | 1.72 Ohm Max | 50 @ 2.52MHz | - | - | - | -- | - | - | - | - | 230 VAC | - | - | - | - | - | - | - | - | - | On Delay | - | 1NC | 0.134 (3.40mm) | - | -- | ||
THDS421C Littelfuse | In Stock | - | - | - | - | Surface Mount | Nonstandard | -- | - | CE, CSA, UL | - | - | - | 4MHz | 1MHz | - | SSAC | - | THDS421C-SSAC | -- | - | - | 1 | -40°C ~ 85°C | Tape & Reel (TR) | ISC-1008 | 0.142 L x 0.142 W (3.60mm x 3.60mm) | ±20% | Active | - | 0.250 in Flat Blade | Wirewound | - | - | Shielded | 50mA | 220µH | 10 Ohm Max | 40 @ 1MHz | - | - | - | -- | - | - | - | - | 120 VAC | - | - | - | - | - | - | - | - | - | One-Shot | - | 1NO | 0.106 (2.70mm) | - | -- | ||
HRDR630B3 Littelfuse | In Stock | - | - | - | - | Surface Mount | 0402 (1005 Metric) | 0402 (1005 Metric) | - | CE, CSA, UL | - | - | - | 12GHz | 500MHz | - | SSAC | - | HRDR630B3-SSAC | -- | - | - | 0 | -40°C ~ 85°C | Tape & Reel (TR) | IFCB-0402 | 0.039 L x 0.020 W (1.00mm x 0.50mm) | ±0.3nH | Active | - | 0.250 in Flat Blade | Thin Film | - | - | Unshielded | 700mA | 1nH | 150 mOhm Max | 7 @ 100MHz | - | - | - | -- | - | - | - | - | 230 VAC | - | - | - | - | - | - | - | - | - | Repeat Cycle | - | SPDT | 0.015 (0.37mm) | - | -- | ||
KRPD22222SRE Littelfuse | In Stock | - | - | - | - | Through Hole | ISOPLUS247™ | ISOPLUS247™ | - | CE, CSA, UL | - | -- | - | - | - | - | SSAC | - | KRPD22222SRE-SSAC | - | -- | - | 1 | -- | Tube | -- | - | - | Obsolete | - | 0.250 in Flat Blade | - | - | MOSFET (Metal Oxide) | - | - | - | - | - | N-Channel | -- | -- | - | - | - | 300V | - | 24 VAC | - | - | - | - | - | - | -- | - | - | One-Shot, Repeat Cycle | - | SPDT | - | - | - | ||
KRPD21510S21MI Littelfuse | In Stock | - | - | - | - | Through Hole | TO-247-3 | TO-247 (IXTH) | - | CE, CSA, UL | - | 220A (Tc) | 10V | - | - | - | SSAC | - | KRPD21510S21MI-SSAC | - | 430W (Tc) | - | 510 | -55°C ~ 175°C (TJ) | Tube | TrenchMV™ | - | - | Obsolete | - | 0.250 in Flat Blade | - | - | MOSFET (Metal Oxide) | - | - | - | - | - | N-Channel | 4 mOhm @ 25A, 10V | 4V @ 250µA | - | 7200pF @ 25V | 158nC @ 10V | 55V | ±20V | 24 VAC | - | - | - | - | - | - | -- | - | - | Interval, On Delay | - | SPDT | - | - | - | ||
HRDR420B3 Littelfuse | In Stock | - | - | - | - | Through Hole | TO-247-3 | TO-247AD (IXFH) | - | CE, CSA, UL | - | 42A (Tc) | 10V | - | - | - | SSAC | - | HRDR420B3-SSAC | - | 300W (Tc) | - | 0 | -55°C ~ 150°C (TJ) | Tube | HiPerFET™ | - | - | Active | - | 0.250 in Flat Blade | - | - | MOSFET (Metal Oxide) | - | - | - | - | - | N-Channel | 60 mOhm @ 500mA, 10V | 4V @ 4mA | - | 4400pF @ 25V | 220nC @ 10V | 200V | ±20V | 120 VAC | - | - | - | - | - | - | -- | - | - | Repeat Cycle | - | SPDT | - | - | - | ||
KSD3310.5SB Littelfuse | In Stock | - | - | - | - | Surface | - | - | - | CE, CSA, UL | - | - | - | - | - | - | SSAC | - | KSD3310.5SB-SSAC | - | - | - | 0 | - | - | - | - | - | - | - | 0.250 in Flat Blade | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 24 VDC | - | - | - | - | - | - | - | - | - | Flasher | - | - | - | - | - | ||
KSPUA6RE Littelfuse | In Stock | - | - | Production (Last Updated: 2 years ago) | - | Surface | - | - | - | CE, CSA, UL | - | - | - | - | - | - | SSAC | ACTIVE (Last Updated: 2 years ago) | KSPUA6RE-SSAC | - | - | - | 1 | - | - | - | - | - | - | - | 0.250 in Flat Blade | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 24-240 VAC | - | - | - | - | - | - | - | - | - | Repeat Cycle | - | - | - | - | - | ||
TH1B6120 Littelfuse | In Stock | - | - | - | - | Surface | - | - | - | CE, CSA, UL | - | - | - | - | - | - | SSAC | - | TH1B6120-SSAC | - | - | - | 20 | - | - | - | - | - | - | - | 0.250 in Flat Blade | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 230 VAC | - | - | - | - | - | - | - | - | - | On Delay | - | 1NO | - | - | - | ||
KRDR121A2 Littelfuse | In Stock | - | - | - | - | Surface | - | - | - | CE, CSA, UL | - | - | - | - | - | - | SSAC | - | KRDR121A2-SSAC | - | - | Compliant | 1 | - | - | - | - | - | - | - | 0.250 in Flat Blade | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 12 VDC | - | - | - | - | - | - | - | - | - | Repeat Cycle | - | SPDT | - | - | - | ||
THC424A Littelfuse | In Stock | - | - | - | - | Surface | - | - | - | CE, CSA, UL | - | - | - | - | - | - | SSAC | - | THC424A-SSAC | - | - | Non-Compliant | 5 | - | - | - | - | - | - | - | 0.250 in Flat Blade | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 120 VAC | - | - | - | - | - | - | - | - | - | One-Shot | - | 1NO | - | - | - | ||
KSPDA2222IRE Littelfuse | In Stock | - | - | - | Panel | Surface | - | - | - | CE, CSA, UL | - | - | - | - | - | - | SSAC | - | KSPDA2222IRE-SSAC | - | - | Compliant | 1 | - | - | - | - | - | - | - | 0.250 in Flat Blade | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 24-240 VAC | - | - | - | - | - | - | - | - | - | Interval, Repeat Cycle | - | - | - | - | - | ||
TRB120A7Y30 Littelfuse | In Stock | - | - | - | - | Socket | - | - | - | CE, CSA, UL | - | - | - | - | - | - | SSAC | - | TRB120A7Y30-SSAC | - | - | - | 1 | - | - | - | - | - | - | - | 11 Pin | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 120 VAC | - | - | - | - | - | - | - | - | - | Off Delay | - | SPDT | - | - | - |