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  • Factory Lead Time
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  • Mounting Type
  • Operating Temperature
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  • Resistance - Initial (Ri) (Min)
  • Resistance - Post Trip (R1) (Max)
  • RoHS Status
  • Series
  • Size / Dimension

Attribute column

Manufacturer

Littelfuse PTC Resettable Fuses

View Mode:
2929 Results

Product

Inventory

Pricing(USD)

Quantity

Datasheet

RoHS

Factory Lead Time

Mounting Type

Package / Case

Surface Mount

Terminal Shape

Brand

Current Rating - Max

Factory Pack QuantityFactory Pack Quantity

Manufacturer

Maximum Operating Temperature

Maximum Voltage

Mfr

Minimum Operating Temperature

Mounting Styles

Operating Temperature (Max.)

Operating Temperature (Min.)

Package

Part # Aliases

Pd - Power Dissipation

Product Status

RoHS

Tradename

Unit Weight

Voltage Rated

Voltage, Rating

Operating Temperature

Packaging

Published

Series

Size / Dimension

JESD-609 Code

Pbfree Code

Part Status

Moisture Sensitivity Level (MSL)

Number of Terminations

Termination

ECCN Code

Type

Resistance

Terminal Finish

Additional Feature

HTS Code

Subcategory

Voltage - Rated DC

Packing Method

Reach Compliance Code

Current Rating

Termination Style

Rated Power Dissipation (P)

Approval Agency

Lead Pitch

Lead Length

Operating Supply Voltage

Working Voltage

Lead Spacing

Max Current Rating

Power Dissipation

Terminal Placement

Max Voltage Rating (DC)

Current - Max

Product Type

Rated (AC) Voltage (URac)

Hold Current

Current - Hold (Ih) (Max)

Thermistor Application

Voltage - Max

Time to Trip

Resistance - Initial (Ri) (Min)

Resistance - Post Trip (R1) (Max)

Current - Trip (It)

Trip Current

Ambient Temperature Range High

Circuit DC Voltage-Max

Product Category

Height

Height Seated (Max)

Length

Width

Thickness (Max)

REACH SVHC

RoHS Status

Lead Free

Ratings

RF1511-000
RF1511-000

Littelfuse

In Stock

-

-

-

-

1210 (3225 metric)

-

-

-

-

-

-

+ 85 C

-

-

-

PCB Mount

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

SMD/SMT

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

RF1547-000
RF1547-000

Littelfuse

In Stock

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

RF2146-000
RF2146-000

Littelfuse

3000
-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

48VDC

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

0.3s

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

4000

-

-

-

Surface Mount

0603 (1608 metric)

-

-

Littelfuse

40 A

4000

Littelfuse

+ 85 C

15 VDC

Littelfuse Inc.

- 40 C

PCB Mount

-

-

Tape & Reel (TR)

RF2057-000

500 mW (1/2 W)

Active

Details

PolySwitch

0.001034 oz

-

-

-

MouseReel

-

femtoSMD

0.063 L x 0.032 W (1.60mm x 0.80mm)

-

-

-

-

-

-

-

PolySwitch Resettable Fuses

30 Ohms

-

-

-

PPTC Resettable Fuses

-

-

-

-

SMD/SMT

-

CSA, UL

-

-

-

-

-

-

-

-

-

40 A

Resettable Fuses - PPTC

-

50 mA

50 mA

-

15V

100 ms

3.8 Ohms

-

150 mA

150 mA

-

-

Resettable Fuses - PPTC

0.85 mm

-

1.8 mm

1 mm

0.026 (0.65mm)

-

-

-

-

FEMTOSMDC012F-2
FEMTOSMDC012F-2

Littelfuse Inc.

4757

-

Datasheet

11 Weeks

Surface Mount

0603 (1608 Metric), Concave

YES

ONE SURFACE

-

-

-

-

-

-

-

-

-

85°C

-40°C

-

-

-

-

-

-

-

-

-

-

Tape & Reel (TR)

2016

PolySwitch®, femtoSMDC

0.063Lx0.032W 1.60mmx0.80mm

-

yes

Active

1 (Unlimited)

2

-

-

Polymeric

-

-

MINIMUM RESISTANCE IS 1.1 OHMS

-

-

-

TR, 7 INCH

-

-

-

0.5W

CSA, UL

-

-

-

9V

-

-

-

DUAL ENDED

-

-

-

-

-

120mA

TEMPERATURE SENSING

9V

100ms

1.1Ohm

5.8Ohm

300mA

-

-

9V

-

-

-

-

-

0.030 0.75mm

-

ROHS3 Compliant

-

-

RXEF110-AP
RXEF110-AP

Littelfuse Inc.

22

-

Datasheet

10 Weeks

Through Hole

Radial, Disc

NO

WIRE

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-40°C~85°C

Tape & Box (TB)

2012

PolySwitch®, RXEF

0.504Dia x 0.118 T 12.80mmx3.00mm

-

yes

Active

Not Applicable

2

-

-

Polymeric

-

-

0.15-0.25 OHMS AT 20 DEG CEL

-

-

-

AMMO PACK

unknown

-

-

-

CQC, CSA, TUV, UL

-

-

-

-

0.199 5.05mm

-

-

-

-

-

-

72V

1.1A

-

TEMPERATURE SENSING

72V

8.2s

150mOhm

380mOhm

2.2A

2.2A

-

-

-

-

0.689 17.50mm

-

-

-

-

ROHS3 Compliant

-

-

TRF250-145-B-0.5
TRF250-145-B-0.5

Littelfuse Inc.

500
Datasheet

-

Through Hole

Radial, Disc

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-40°C~85°C

Bulk

-

PolySwitch®, TRF250

0.256Lx0.181W 6.50mmx4.60mm

-

yes

Active

1 (Unlimited)

-

-

-

Polymeric

-

-

-

-

-

-

-

-

-

-

-

CSA, TUV, UL

-

-

-

-

0.197 5.00mm

-

-

-

-

-

-

-

-

145mA

-

60V 250V Int

5s

3Ohm

14Ohm

290mA

-

-

-

-

-

0.433 11.00mm

-

-

-

-

ROHS3 Compliant

-

-

72R185XMR
72R185XMR

Littelfuse Inc.

6
Datasheet

12 Weeks

Through Hole

Radial, Disc

NO

WIRE

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-40°C~85°C

Tape & Box (TB)

2010

POLY-FUSE®, 72R

0.660Dia x 0.122 T 16.76mmx3.10mm

e3

-

Active

1 (Unlimited)

2

Radial

-

Polymeric

190mOhm

Tin (Sn)

0.08 TO 0.19 OHMS MEASURED AT 23 DEG CEL

-

-

72V

AMMO PACK; TR

unknown

40A

-

-

cURus, TUV

5.1mm

-

72V

-

0.201 5.10mm

40A

2.1W

-

-

-

-

-

1.85A

1.85A

OVERLOAD PROTECTION

-

12.6s

80mOhm

190mOhm

-

3.7A

-

-

-

-

0.906 23.00mm

-

-

-

-

ROHS3 Compliant

-

-

RF1514-000
RF1514-000

Littelfuse

In Stock

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

RGEF900
RGEF900

Littelfuse Inc.

1500

-

Datasheet

10 Weeks

Through Hole

Radial, Disc

NO

WIRE

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-40°C~85°C

Bag

2005

PolySwitch®, RGEF

0.531Lx0.100W 13.50mmx2.50mm

-

yes

Discontinued

Not Applicable

2

-

-

Polymeric

13.5mOhm

-

RESISTANCE RANGE(MIN-MAX): 0.0047-0.0091

-

-

-

BULK

unknown

-

-

3.3W

CSA, TUV, UL

-

-

16V

-

0.199 5.05mm

-

-

-

-

-

-

-

9A

-

TEMPERATURE SENSING

16V

5.5s

4.7mOhm

13.5mOhm

-

15.3A

-

-

-

-

0.854 21.70mm

-

-

-

-

ROHS3 Compliant

-

-

RF1689-000
RF1689-000

Littelfuse

1000

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

AGRF1200-2
AGRF1200-2

Littelfuse Inc.

31
Datasheet

10 Weeks

Through Hole

Radial, Disc

NO

WIRE

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-40°C~85°C

Tape & Reel (TR)

2010

PolySwitch®, AGRF

0.689Lx0.138W 17.50mmx3.50mm

-

yes

Active

Not Applicable

2

-

-

Polymeric

-

-

RESISTANCE RANGE(MIN-MAX): 0.0030-0.0057

-

-

-

TR

unknown

-

-

4.2W

-

-

-

-

-

0.400 10.15mm

-

-

-

-

-

-

16V

12A

-

TEMPERATURE SENSING

16V

8s

3mOhm

8.6mOhm

22.1A

22.1A

-

-

-

-

1.134 28.80mm

-

-

-

-

ROHS3 Compliant

-

AEC-Q200

RF1524-000
RF1524-000

Littelfuse

In Stock

-

-

-

-

-

-

-

-

-

-

-

+ 85 C

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

RGEF1100-2
RGEF1100-2

Littelfuse Inc.

119106
Datasheet

10 Weeks

Through Hole

Radial, Disc

NO

WIRE

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-40°C~85°C

Tape & Reel (TR)

2010

PolySwitch®, RGEF

0.669Lx0.098W 17.00mmx2.50mm

-

yes

Active

Not Applicable

2

-

-

Polymeric

-

-

RESISTANCE RANGE(MIN-MAX): 0.0037-0.0060

-

-

-

TR, 14.6 INCH

unknown

-

-

3.7W

CSA, TUV, UL

-

-

-

-

0.199 5.05mm

-

-

-

-

-

-

16V

11A

-

TEMPERATURE SENSING

16V

7s

3.7mOhm

8.9mOhm

18.7A

18.7A

-

-

-

-

1.024 26.00mm

-

-

-

-

ROHS3 Compliant

-

-

RXEF010-AP
RXEF010-AP

Littelfuse Inc.

67
Datasheet

10 Weeks

Through Hole

Radial, Disc

NO

WIRE

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-40°C~85°C

Tape & Box (TB)

2002

PolySwitch®, RXEF

0.291Dia x 0.118 T 7.40mmx3.00mm

-

yes

Active

Not Applicable

2

-

-

Polymeric

-

-

2.5-4.5 OHMS AT 20 DEG CEL

-

-

-

AMMO PACK

unknown

-

-

-

CQC, CSA, TUV, UL

-

-

-

-

0.199 5.05mm

-

-

-

-

-

-

60V

100mA

-

TEMPERATURE SENSING

60V

4s

2.5Ohm

7.5Ohm

200mA

200mA

-

-

-

-

0.457 11.60mm

-

-

-

-

ROHS3 Compliant

-

-

RF1641-000
RF1641-000

Littelfuse

In Stock

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

RF1864-000
RF1864-000

Littelfuse

In Stock

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

RUEF400
RUEF400

Littelfuse Inc.

2259

-

Datasheet

10 Weeks

Through Hole

Radial, Disc

NO

WIRE

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

30V

-

-40°C~85°C

Bulk

2005

PolySwitch®, RUEF

0.551Lx0.118W 14.00mmx3.00mm

e3

yes

Active

Not Applicable

2

-

-

Polymeric

-

Matte Tin (Sn)

RESISTANCE RANGE(MIN-MAX): 0.010-0.030

-

-

-

-

-

100A

-

2.5W

CQC, CSA, TUV, UL

-

7.6mm

30V

-

0.199 5.05mm

-

-

-

-

-

-

-

4A

4A

TEMPERATURE SENSING

-

12.7s

10mOhm

50mOhm

8A

8A

85°C

-

-

19.3mm

0.760 19.30mm

-

-

-

-

ROHS3 Compliant

-

-

30R500UMR
30R500UMR

Littelfuse Inc.

614
Datasheet

12 Weeks

Through Hole

Radial, Disc

NO

WIRE

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-40°C~85°C

Tape & Box (TB)

2010

POLY-FUSE®, 30R

0.551Lx0.118W 14.00mmx3.00mm

e3

yes

Active

1 (Unlimited)

2

Radial

EAR99

Polymeric

50mOhm

Matte Tin (Sn)

FLAME PROOF, MINIMUM RESISTANCE IS 0.01 OHMS

8533.40.80.70

-

30V

AMMO PACK

-

40A

-

-

cURus, TUV

10.2mm

-

30V

30V

0.402 10.20mm

40A

3W

-

30V

-

-

-

5A

5A

OVERCURRENT PROTECTION

-

14.5s

10mOhm

50mOhm

-

10A

-

-

-

-

1.008 25.60mm

-

-

-

Unknown

ROHS3 Compliant

Lead Free

-

RF1673-000
RF1673-000

Littelfuse

942

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

30VDC

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

3s

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-