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Fusible Resistors

Fusible resistors, also known as fuse resistors, are special types of resistors that have an added function of self-protection. They are designed to protect circuits from overloading and overheating by acting as fuses when exposed to excessive currents or power surges.

Fusible resistors work by including a fusible element within the resistor itself, such as a small metal wire or a coating of fusible alloy. When the current or power in the circuit exceeds the rated value of the resistor, the fusible element melts, creating an open circuit and disconnecting the power source from the rest of the circuit. This interrupts the flow of current, preventing damage to the circuit and the components it connects.

Fusible resistors are commonly used in applications where circuit protection is critical, such as in power supplies, motor controls, and electronic lighting systems. They are often employed in situations where conventional fuses or circuit breakers may not provide adequate protection or where space is limited. Fusible resistors are available in a range of resistance values, power ratings, and tolerances to suit various applications. They are typically marked with a symbol or a code to indicate their fusible nature.

Fusible Resistors

Available Parts 21

Part# Info Specs
Part RoHS Manufacturer Description Additional Features Construction Fusing Time JESD-609 Code Diameter (Lead) Length (Lead) Manufacturer Series Mounting Type No. of Terminals Maximum Operating Temperature Minimum Operating Temperature Diameter (Package) Height (Package) Length (Package) Shape (Package) Package Style (Meter) Width (Package) Packing Method Dimensions Rated Power Dissipation (P) Rated Temperature Reference Standard Resistance Resistor Type Series Size Code Sub-Category Technology Temperature Coef (ppm/Cel) Terminal Finish Terminal Shape Tolerance Operating Voltage
RWT5AJB10R0 by Stackpole Electronics

RWT5AJB10R0

Stackpole Electronics

RWT5AJB10R0 by Stackpole Electronics is a fusible resistor with 10 ohm resistance, 5% tolerance, and 5W power dissipation. It operates b/w -25°C to 100°C, making it suitable for various applications requiring a rated temperature of 70°C. The wire wound technology and through hole mounting offer reliable performance in different electronic circuits.

Rectangular

e3

5 mm

THROUGH HOLE MOUNT

2

100 Cel

-25 Cel

25 mm

13 mm

Radial

9.5 mm

BULK

5 W

70 Cel

10 ohm

FUSIBLE RESISTOR

WIRE WOUND

200

MATTE TIN

WIRE

5 %

7.0711 V

M251206BB2200JP500 by Vishay Intertechnology

M251206BB2200JP500

Vishay Intertechnology

Vishay Intertechnology's M251206BB2200JP500 is a fusible resistor with 220 ohm resistance, 5% tolerance, and 0.25 W power dissipation. It features thin film technology, operates b/w -55 to 125 °C, and has a temperature coefficient of 100 ppm/°C. Ideal for surface mount applications in various electronic circuits requiring precise resistance values.

FLAME PROOF, LASER TRIMMABLE

Chip

e3

M25SI

SURFACE MOUNT

2

125 Cel

-55 Cel

.55 mm

3.2 mm

RECTANGULAR PACKAGE

SMT

1.6 mm

TR, PAPER, 7 INCH

.25 W

70 Cel

220 ohm

FIXED RESISTOR - FUSIBLE

M25SI

1206

Fusible Resistors

THIN FILM

100

Matte Tin (Sn) - with Nickel (Ni) barrier

WRAPAROUND

5 %

FKN3WSJR-73-4R7 by Yageo

FKN3WSJR-73-4R7

Yageo

Yageo's FKN3WSJR-73-4R7 is a fusible resistor with 4.7 ohm resistance, 3W power dissipation, and 5% tolerance. It operates at -40 to 155 °C and has a fusing time of 60s. Ideal for applications requiring high temperature stability and protection against overcurrent situations in electronic circuits.

FLAME PROOF

Cylindrical

60 s

e3

.8 mm

33 mm

THROUGH HOLE MOUNT

2

155 Cel

-40 Cel

5.2 mm

15.5 mm

CYLINDRICAL PACKAGE

Axial

TR, 12 INCH

3 W

70 Cel

4.7 ohm

FUSIBLE RESISTOR

Fixed Resistors

WIRE WOUND

350

Matte Tin (Sn)

WIRE

5 %

3.755 V

WWF2AJT150R by Stackpole Electronics

WWF2AJT150R

Stackpole Electronics

WWF2AJT150R by Stackpole Electronics is a fusible resistor with 150 ohm resistance, 3W power dissipation, and 1s fusing time. It is ideal for applications requiring high operating temperatures up to 350°C, such as automotive electronics and industrial equipment. With wire wound technology and tubular construction, it offers reliable performance in harsh environments.

Tubular

1 s

e3

.81 mm

38.1 mm

THROUGH HOLE MOUNT

2

350 Cel

-55 Cel

3.96 mm

13.97 mm

Axial

TR, 11 INCH

3 W

25 Cel

150 ohm

FUSIBLE RESISTOR

WIRE WOUND

20

MATTE TIN

WIRE

5 %

21.2132 V

F1W082 by Nte Electronics

F1W082

Nte Electronics

The Nte Electronics F1W082 is a 82 ohm fusible resistor with METAL OXIDE FILM technology. It has a rated power dissipation of 1W and a temperature coefficient of 200 ppm/°C. Ideal for applications requiring a fixed fusible resistor with 5% tolerance in an axial package style.

Fusible

.7 mm

33 mm

2

3.4 mm

9.5 mm

Axial

1 W

82 ohm

FIXED RESISTOR - FUSIBLE

Fusible Resistors

METAL OXIDE FILM

200

5 %

M251206BB1001JP500 by Vishay Intertechnology

M251206BB1001JP500

Vishay Intertechnology

Vishay Intertechnology's M251206BB1001JP500 is a thin film fusible resistor with 1000 ohm resistance, 5% tolerance, and 0.25 W power dissipation. Ideal for SMT applications, it operates b/w -55 to 125 °C and has a temperature coefficient of 100 ppm/°C.

Chip

2

125 Cel

-55 Cel

.55 mm

3.2 mm

SMT

1.6 mm

TR, Paper, 7 Inch

.25 W

1000 ohm

FIXED RESISTOR - FUSIBLE

1206

Fusible Resistors

THIN FILM

100

5 %

M251206BB7509JP500 by Vishay Intertechnology

M251206BB7509JP500

Vishay Intertechnology

Vishay Intertechnology's M251206BB7509JP500 is a 75 ohm fusible resistor with thin film technology, SMT package style, and 5% tolerance. Ideal for applications requiring a fixed fusible resistor with a rated power dissipation of 0.25 W, operating b/w -55 to 125 °C temperatures.

Chip

M25SI

2

125 Cel

-55 Cel

.55 mm

3.2 mm

SMT

1.6 mm

TR, Paper, 7 Inch

.25 W

75 ohm

FIXED RESISTOR - FUSIBLE

M25SI

1206

Fusible Resistors

THIN FILM

100

5 %

FW20A6R80JA by Bourns

FW20A6R80JA

Bourns

Bourns FW20A6R80JA is a 6.8 ohm fusible resistor with 2 terminals, rated at 2W power dissipation and 5% tolerance. Featuring wire wound technology, it operates b/w -55°C to 275°C making it suitable for through-hole mounting applications in various electronic circuits.

Tubular

e3

.65 mm

THROUGH HOLE MOUNT

2

275 Cel

-55 Cel

6 mm

12 mm

TUBULAR PACKAGE

Axial

AMMO PACK

2 W

70 Cel

6.8 ohm

FIXED RESISTOR - FUSIBLE

WIRE WOUND

200

TIN

WIRE

5 %

3.6878 V

FW30A33R0JA by Bourns

FW30A33R0JA

Bourns

Bourns FW30A33R0JA is a 33 ohm fusible resistor with 5% tolerance, rated for 3W power dissipation. Operating voltage of 9.9499V and temperature coefficient of 200 ppm/°C make it ideal for through-hole mounting applications in various electronic circuits. With a tubular package shape and wire terminal finish, it offers reliability in a compact design.

Tubular

e3

.75 mm

THROUGH HOLE MOUNT

2

275 Cel

-55 Cel

6.5 mm

16 mm

TUBULAR PACKAGE

Axial

AMMO PACK

3 W

70 Cel

33 ohm

FIXED RESISTOR - FUSIBLE

WIRE WOUND

200

TIN

WIRE

5 %

9.9499 V

FW30A8R20JA by Bourns

FW30A8R20JA

Bourns

Bourns FW30A8R20JA is a 8.2 ohm fusible resistor with 5% tolerance, rated for 3W power dissipation at temperatures from -55 to 275°C. Its wire wound technology and tubular package make it ideal for through hole mounting in various electronic applications.

Tubular

e3

.75 mm

THROUGH HOLE MOUNT

2

275 Cel

-55 Cel

6.5 mm

16 mm

TUBULAR PACKAGE

Axial

AMMO PACK

3 W

70 Cel

8.2 ohm

FIXED RESISTOR - FUSIBLE

WIRE WOUND

200

TIN

WIRE

5 %

4.9598 V

FW50A6R80JA by Bourns

FW50A6R80JA

Bourns

FIXED RESISTOR - FUSIBLE; Mounting Type: THROUGH HOLE MOUNT; Resistance: 6.8 ohm; Rated Power Dissipation (P): 5 W; Maximum Operating Temperature: 275 Cel; Tolerance: 5 %;

Tubular

e3

.75 mm

THROUGH HOLE MOUNT

2

275 Cel

-55 Cel

7.5 mm

18 mm

TUBULAR PACKAGE

Axial

AMMO PACK

5 W

70 Cel

6.8 ohm

FIXED RESISTOR - FUSIBLE

WIRE WOUND

200

TIN

WIRE

5 %

5.831 V

WWF2AJT100R by Stackpole Electronics

WWF2AJT100R

Stackpole Electronics

WWF2AJT100R by Stackpole Electronics is a fusible resistor with 100 ohm resistance, 3W power dissipation, and 1s fusing time. Ideal for applications requiring high temperature tolerance up to 350°C, such as automotive electronics and industrial equipment. With wire wound technology and matte tin terminal finish, it ensures reliable performance in harsh environments.

Tubular

1 s

e3

.81 mm

38.1 mm

THROUGH HOLE MOUNT

2

350 Cel

-55 Cel

3.96 mm

13.97 mm

Axial

TR, 11 INCH

3 W

25 Cel

100 ohm

FUSIBLE RESISTOR

WIRE WOUND

20

MATTE TIN

WIRE

5 %

17.3205 V

WWF2AJT200R by Stackpole Electronics

WWF2AJT200R

Stackpole Electronics

WWF2AJT200R by Stackpole Electronics is a fusible resistor with 200 ohm resistance, 3W power dissipation, and 1s fusing time. Ideal for applications requiring high-temperature operation up to 350°C, such as automotive electronics and industrial equipment. Features wire wound technology in a tubular construction with matte tin terminal finish.

Tubular

1 s

e3

.81 mm

38.1 mm

THROUGH HOLE MOUNT

2

350 Cel

-55 Cel

3.96 mm

13.97 mm

Axial

TR, 11 INCH

3 W

25 Cel

200 ohm

FUSIBLE RESISTOR

WIRE WOUND

20

MATTE TIN

WIRE

5 %

24.4949 V

FRN50J2R2/S by TE Connectivity

FRN50J2R2/S

TE Connectivity

FIXED RESISTOR; Mounting Type: THROUGH HOLE MOUNT; Resistance: 2.2 ohm; Rated Power Dissipation (P): .5 W; Maximum Operating Temperature: 155 Cel; Tolerance: 5 %;

FLAME PROOF, FUSING POWER: 16 TIMES RATED POWER

60 s

THROUGH HOLE MOUNT

2

155 Cel

-55 Cel

TUBULAR PACKAGE

AMMO PACK

6.3mm x 2.3mm

.5 W

2.2 ohm

FIXED RESISTOR

THIN FILM

350

WIRE

5 %

FSQ510RJ by TE Connectivity

FSQ510RJ

TE Connectivity

TE Connectivity's FSQ510RJ is a 10 ohm wire wound fusible resistor with 5% tolerance and 5W power dissipation. Ideal for through hole mounting, it operates b/w -55°C to 275°C with a temperature coefficient of 300 ppm/°C.

THROUGH HOLE MOUNT

2

275 Cel

-55 Cel

RECTANGULAR PACKAGE

BAG, BULK

22mm x 10mm

5 W

10 ohm

FIXED RESISTOR

WIRE WOUND

300

WIRE

5 %

FCR1206J10R by TE Connectivity

FCR1206J10R

TE Connectivity

TE Connectivity's FCR1206J10R is a fusible resistor with 10 ohm resistance, 5% tolerance, and 0.125 W power dissipation. It features thick film technology, WRAPAROUND terminals, and operates b/w -55 to 125 °C. Ideal for surface mount applications requiring a rated temperature of 70 °C and fusing time of 2.5 s.

2.5 s

SURFACE MOUNT

2

125 Cel

-55 Cel

RECTANGULAR PACKAGE

TR

3.2mm x 1.6mm x .5mm

.125 W

70 Cel

10 ohm

FIXED RESISTOR

1206

THICK FILM

500

WRAPAROUND

5 %

FCR1206J22R by TE Connectivity

FCR1206J22R

TE Connectivity

TE Connectivity's FCR1206J22R is a fusible resistor with 22 ohm resistance, 5% tolerance, and 0.125 W power dissipation. It features thick film technology, WRAPAROUND terminals, and operates b/w -55 to 125 °C. Ideal for surface mount applications requiring a reliable component with a fusing time of 2.5 s.

2.5 s

SURFACE MOUNT

2

125 Cel

-55 Cel

RECTANGULAR PACKAGE

TR

3.2mm x 1.6mm x .5mm

.125 W

70 Cel

22 ohm

FIXED RESISTOR

1206

THICK FILM

500

WRAPAROUND

5 %

AC03000005609JACCS by Vishay Intertechnology

AC03000005609JACCS

Vishay Intertechnology

Vishay Intertechnology's AC03000005609JACCS is a fusible resistor with 56 ohm resistance, 3W power dissipation, and 5% tolerance. It operates b/w -40 to 200°C, making it suitable for applications requiring high-temperature stability. With a diameter of 6mm and length of 13mm, it is designed for through-hole mounting in various electronic circuits.

Tubular

.8 mm

THROUGH HOLE MOUNT

2

200 Cel

-40 Cel

6 mm

13 mm

Axial

AMMO PACK

3 W

40 Cel

UL

56 ohm

FUSIBLE RESISTOR

WIRE WOUND

200

WIRE

5 %

12.9615 V

AC03000003309JACCS by Vishay Intertechnology

AC03000003309JACCS

Vishay Intertechnology

Vishay Intertechnology's AC03000003309JACCS is a fusible resistor with 33 ohm resistance, 3W power dissipation, and 5% tolerance. It operates b/w -40 to 200 °C and is ideal for applications requiring high temperature stability and protection against overloads in electronic circuits.

Tubular

.8 mm

THROUGH HOLE MOUNT

2

200 Cel

-40 Cel

6 mm

13 mm

Axial

AMMO PACK

3 W

40 Cel

UL

33 ohm

FUSIBLE RESISTOR

WIRE WOUND

200

WIRE

5 %

9.9499 V

AC03000007509JACCS by Vishay Intertechnology

AC03000007509JACCS

Vishay Intertechnology

Vishay Intertechnology's AC03000007509JACCS is a fusible resistor with 75 ohm resistance, 3W power dissipation, and 15V operating voltage. It features wire wound technology, tubular construction, and axial package style. Ideal for applications requiring a rated temperature of -40 to 200 °C such as UL standard compliant circuits in electronics industry.

Tubular

.8 mm

THROUGH HOLE MOUNT

2

200 Cel

-40 Cel

6 mm

13 mm

Axial

AMMO PACK

3 W

40 Cel

UL

75 ohm

FUSIBLE RESISTOR

WIRE WOUND

200

WIRE

5 %

15 V

AC050000B5609J6BCS by Vishay Intertechnology

AC050000B5609J6BCS

Vishay Intertechnology

Vishay Intertechnology's AC050000B5609J6BCS is a fusible resistor with 56 ohm resistance, 5% tolerance, and 5W power dissipation. It operates b/w -40 to 200 °C and has a temperature coefficient of 200 ppm/°C. Ideal for applications requiring high reliability in harsh environments.

Tubular

e3

.8 mm

THROUGH HOLE MOUNT

2

200 Cel

-40 Cel

10 mm

17 mm

Axial

AMMO PACK

5 W

40 Cel

UL

56 ohm

FUSIBLE RESISTOR

WIRE WOUND

200

MATTE TIN

WIRE

5 %

16.7332 V