.001 ohm Non-linear Resistors 28

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Part RoHS Manufacturer Resistor Type Mounting Type Resistance Rated Power Dissipation (P) Maximum Operating Temperature Tolerance Diameter (Lead) Spacing (Lead) Rated Temperature Thermistor Application Terminal Placement Technology Shape (Package) Construction Maximum Energy Absorbing Capacity Packing Method Size Code No. of Terminals Package Style (Meter) Rated AC Voltage (URac) Terminal Shape Sub-Category Dimensions Thermal Sensitivity Index Minimum Operating Temperature Temperature Coef (ppm/Cel) Terminal Finish Length (Lead) Height (Package) Manufacturer Series Maximum Circuit RMS Voltage Operating Voltage Additional Features Length (Package) JESD-609 Code Diameter (Package) Reference Standard Width (Package) Maximum Circuit DC Voltage

2920L600/24SLER

Littelfuse

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

2.5 W

85 Cel

OVERCURRENT PROTECTION

DUAL ENDED

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

MATTE TIN

2.5 mm

24 V

7.98 mm

e3

CUL, TUV, UL

5.44 mm

1206L400SLWR

Littelfuse

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

.8 W

85 Cel

OVERCURRENT PROTECTION

DUAL ENDED

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

MATTE TIN

1.4 mm

6 V

3.4 mm

e3

CUL, TUV, UL

1.8 mm

1210L400SLWR

Littelfuse

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

1 W

85 Cel

OVERCURRENT PROTECTION

DUAL ENDED

RECTANGULAR PACKAGE

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

MATTE TIN

1 mm

6 V

3.43 mm

e3

CUL, TUV, UL

2.8 mm

MF-USML500/12-2

Bourns

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

85 Cel

DUAL ENDED

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

1.2 mm

12 V

RMIN AT 23 DEG CEL

3.43 mm

CUL; TUV; UL

2.8 mm

12 V

2920L700/24SLER

Littelfuse

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

2.5 W

85 Cel

OVERCURRENT PROTECTION

DUAL ENDED

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

MATTE TIN

2.5 mm

24 V

7.98 mm

e3

CUL, TUV, UL

5.44 mm

MF-USML650/6-2

Bourns

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

85 Cel

DUAL ENDED

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

.95 mm

6 V

RMIN AT 23 DEG CEL

3.43 mm

CUL; TUV; UL

2.8 mm

6 V

1812L300/24SLER

Littelfuse

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

2 W

85 Cel

OVERCURRENT PROTECTION

DUAL ENDED

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

MATTE TIN

2.5 mm

24 V

4.73 mm

e3

CUL, TUV, UL

3.41 mm

2920L500/24SLDR

Littelfuse

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

2.2 W

85 Cel

OVERCURRENT PROTECTION

DUAL ENDED

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

MATTE TIN

1.2 mm

24 V

7.98 mm

e3

CUL, TUV, UL

5.44 mm

1206L450SLWR

Littelfuse

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

.8 W

85 Cel

OVERCURRENT PROTECTION

DUAL ENDED

RECTANGULAR PACKAGE

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

MATTE TIN

1.4 mm

6 V

3.4 mm

e3

CUL, TUV, UL

1.8 mm

2920L700SLPR

Littelfuse

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

2.2 W

85 Cel

OVERCURRENT PROTECTION

DUAL ENDED

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

MATTE TIN

.65 mm

6 V

7.98 mm

e3

CUL, TUV, UL

5.44 mm

MF-PSML450/8-2

Bourns

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

85 Cel

DUAL ENDED

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

.95 mm

8 V

RMIN AT 23 DEG CEL

2.3 mm

CUL; TUV; UL

1.5 mm

8 V

1206L600SLWR

Littelfuse

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

1 W

85 Cel

OVERCURRENT PROTECTION

DUAL ENDED

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

MATTE TIN

1.2 mm

6 V

3.4 mm

e3

CUL, TUV, UL

1.8 mm

1210L550SLWR

Littelfuse

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

1.2 W

85 Cel

OVERCURRENT PROTECTION

DUAL ENDED

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

Matte Tin (Sn)

1 mm

6 V

3.43 mm

e3

CUL, TUV, UL

2.8 mm

MF-USML600/6-2

Bourns

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

85 Cel

DUAL ENDED

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

.95 mm

6 V

RMIN AT 23 DEG CEL

3.43 mm

CUL; TUV; UL

2.8 mm

6 V

1206L450SLWR-A

Littelfuse

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

85 Cel

OVERCURRENT PROTECTION

DUAL ENDED

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

1.4 mm

6 V

RESISTANCE RANGE(RMIN-R1MAX)OHM: 0.001-0.014

3.4 mm

CUL; TUV; UL

1.8 mm

1210L450SLWR-A

Littelfuse

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

85 Cel

OVERCURRENT PROTECTION

DUAL ENDED

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

1.2 mm

6 V

RESISTANCE RANGE(RMIN-R1MAX)OHM: 0.001-0.014

3.43 mm

CUL; TUV; UL

2.8 mm

1210L450/12SLWR

Littelfuse

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

1.2 W

85 Cel

OVERCURRENT PROTECTION

DUAL ENDED

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

1.4 mm

12 V

3.43 mm

CUL, TUV, UL

2.8 mm

1206L700SLPR

Littelfuse

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

1.2 W

85 Cel

OVERCURRENT PROTECTION

DUAL ENDED

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

1.4 mm

6 V

3.4 mm

CUL, TUV, UL

1.8 mm

1210L500SLWR

Littelfuse

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

1.2 W

85 Cel

OVERCURRENT PROTECTION

DUAL ENDED

RECTANGULAR PACKAGE

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

Matte Tin (Sn)

1 mm

6 V

3.43 mm

e3

CUL, TUV, UL

2.8 mm

1210L900SLPR

Littelfuse

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

1.4 W

85 Cel

OVERCURRENT PROTECTION

DUAL ENDED

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

MATTE TIN

1.4 mm

6 V

3.43 mm

e3

CUL, TUV, UL

2.8 mm

1210L600SLWR

Littelfuse

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

1.2 W

85 Cel

OVERCURRENT PROTECTION

DUAL ENDED

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

Matte Tin (Sn)

1 mm

6 V

3.43 mm

e3

CUL, TUV, UL

2.8 mm

1206L500SL-VWR

Littelfuse

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

1 W

85 Cel

OVERCURRENT PROTECTION

DUAL ENDED

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

MATTE TIN

1 mm

6 V

3.4 mm

e3

CUL, TUV, UL

1.8 mm

1206L500/12SLPR

Littelfuse

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

1 W

85 Cel

OVERCURRENT PROTECTION

DUAL ENDED

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

Matte Tin (Sn)

1.4 mm

12 V

3.4 mm

e3

CUL, TUV, UL

1.8 mm

1210L500/12SLWR

Littelfuse

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

1.2 W

85 Cel

OVERCURRENT PROTECTION

DUAL ENDED

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

MATTE TIN

1.4 mm

12 V

3.43 mm

e3

CUL, TUV, UL

2.8 mm

1210L450SLWR

Littelfuse

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

1 W

85 Cel

OVERCURRENT PROTECTION

DUAL ENDED

RECTANGULAR PACKAGE

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

1.2 mm

6 V

3.43 mm

CUL, TUV, UL

2.8 mm

2920L700SLPR-A

Littelfuse

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

85 Cel

OVERCURRENT PROTECTION

DUAL ENDED

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

.65 mm

6 V

RESISTANCE RANGE(RMIN-R1MAX)OHM: 0.001-0.007

7.98 mm

CUL; TUV; UL

5.44 mm

1206L400SLWR-A

Littelfuse

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

85 Cel

OVERCURRENT PROTECTION

DUAL ENDED

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

1.4 mm

6 V

RESISTANCE RANGE(RMIN-R1MAX)OHM: 0.001-0.014

3.4 mm

CUL; TUV; UL

1.8 mm

1210L400SLWR-A

Littelfuse

PTC RESETTABLE FUSE

SURFACE MOUNT

.001 ohm

85 Cel

OVERCURRENT PROTECTION

DUAL ENDED

TR, 7 INCH

2

SMT

WRAPAROUND

-40 Cel

1 mm

6 V

RESISTANCE RANGE(RMIN-R1MAX)OHM: 0.001-0.014

3.43 mm

CUL; TUV; UL

2.8 mm

Non-linear Resistors

Non-linear resistors, also known as varistors or voltage-dependent resistors, are electronic components that exhibit a nonlinear resistance characteristic with respect to the applied voltage. They are primarily used for voltage clamping, surge protection, and transient suppression in electronic circuits.

The resistance of a varistor decreases with an increase in voltage, allowing it to provide a low resistance path for transient currents that exceed a specified threshold. When the voltage level drops below the threshold, the resistance increases, returning the varistor to its high impedance state. This property makes them useful for protecting sensitive electronic components from voltage surges and spikes.

Varistors are available in two types: metal oxide varistors (MOVs) and silicon carbide varistors (SiCVs). MOVs are the most common type, and they can handle a wider range of voltages than SiCVs. SiCVs, on the other hand, can handle higher temperatures and are more suitable for high power applications.

Non-linear resistors are widely used in power supplies, surge protectors, electronic ballasts, motor control circuits, and telecommunication systems. They are available in various package types, including through-hole, surface mount, and radial leaded packages.