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RS-485 ESD, Lightning, & Power Fault Protection

Littelfuse RS-485 ESD, Lightning, and Power Fault Protection feature polymeric positive temperature coefficients (PPTCs) that can protect against short circuit and power crosses. The RS-485 product line includes the resettable PPTCs, TVS diodes, GDTs, and SIDACtor series. The TVS Diode Arrays and SM712 series are specifically designed to protect RS-485 applications from ESD, EFT, and lightning-induced surges. When lightning occurs, the SIDACtor will react by causing voltage to increase across PPTC until GDT fires.

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Part #

Resettable Fuses - PPTC Polyswitch 0.3A

TRF600-150QF-EX-B-0.5
Littelfuse
2,000: $0.774
Non-Stocked

Mfr. Part No.
TRF600-150QF-EX-B-0.5

Mouser Part No
650-RF600150QFEXB0.5

Resettable Fuses - PPTC Polyswitch 0.3A

Datasheet

Non-Stocked

$0.774

Min.: 2,000
Mult.: 2,000

Resettable Fuses - PPTC 60V 3A 8Ohms

TRF250-120-B-0.5
Littelfuse
10,000: $0.52
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
TRF250-120-B-0.5

Mouser Part No
650-TRF250-120-B-0.5

Resettable Fuses - PPTC 60V 3A 8Ohms

Datasheet

Non-Stocked Lead-Time 15 Weeks

$0.52

Min.: 10,000
Mult.: 500

Resettable Fuses - PPTC 60V 3A 8Ohms

TRF250-120S-B-0.5
Littelfuse
10,000: $0.528
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
TRF250-120S-B-0.5

Mouser Part No
650-TRF250-120SB-0.5

Resettable Fuses - PPTC 60V 3A 8Ohms

Datasheet

Non-Stocked Lead-Time 15 Weeks

$0.528

Min.: 10,000
Mult.: 500

Resettable Fuses - PPTC .12A 250V

TRF250-120T-2
Littelfuse
1: $1.33
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
TRF250-120T-2

Mouser Part No
650-TRF250-120T-2

Resettable Fuses - PPTC .12A 250V

Datasheet

Non-Stocked Lead-Time 15 Weeks

Cut Tape

$1.33

$1.11

$1.02

$0.849

View

Reel

$0.537

Min.: 1
Mult.: 1

Reel: 1,500

Resettable Fuses - PPTC 250V .12A-HD 3A MAX

TRF250-120T-B-0.5
Littelfuse
1: $1.04
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
TRF250-120T-B-0.5

Mouser Part No
650-TRF250-120TB0.5

Resettable Fuses - PPTC 250V .12A-HD 3A MAX

Datasheet

Non-Stocked Lead-Time 15 Weeks

$1.04

$0.958

$0.795

$0.734

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC .12A 60Vdc MAX 250Vrms

TRF250-120U
Littelfuse
1: $0.89
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
TRF250-120U

Mouser Part No
650-TRF250-120U

Resettable Fuses - PPTC .12A 60Vdc MAX 250Vrms

Datasheet

Non-Stocked Lead-Time 15 Weeks

$0.89

$0.885

$0.724

$0.67

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC .12A 250V

TRF250-120U-2
Littelfuse
1: $1.11
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
TRF250-120U-2

Mouser Part No
650-TRF250-120U-2

Resettable Fuses - PPTC .12A 250V

Datasheet

Non-Stocked Lead-Time 15 Weeks

Cut Tape

$1.11

$0.992

$0.796

$0.758

View

Reel

$0.527

Min.: 1
Mult.: 1

Reel: 1,500

Resettable Fuses - PPTC 60V 3A 10Ohms

TRF250-120UA
Littelfuse
1: $0.973
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
TRF250-120UA

Mouser Part No
650-TRF250-120UA

Resettable Fuses - PPTC 60V 3A 10Ohms

Datasheet

Non-Stocked Lead-Time 15 Weeks

$0.973

$0.887

$0.735

$0.678

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 16 Ohms 3 A 60 V - 40 C+ 85 C

TRF250-120US
Littelfuse
1: $1.03
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
TRF250-120US

Mouser Part No
650-TRF250-120US

Resettable Fuses - PPTC 16 Ohms 3 A 60 V - 40 C+ 85 C

Datasheet

Non-Stocked Lead-Time 15 Weeks

$1.03

$0.933

$0.852

$0.644

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 60V 3A 10Ohms

TRF250-120US-2
Littelfuse
1: $1.21
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
TRF250-120US-2

Mouser Part No
650-TRF250-120US-2

Resettable Fuses - PPTC 60V 3A 10Ohms

Datasheet

Non-Stocked Lead-Time 15 Weeks

Cut Tape

$1.21

$0.998

$0.922

$0.766

View

Reel

$0.527

Min.: 1
Mult.: 1

Reel: 1,500

Resettable Fuses - PPTC

TRF250-120UT
Littelfuse
1: $1.03
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
TRF250-120UT

Mouser Part No
650-TRF250-120UT

Resettable Fuses - PPTC

Datasheet

Non-Stocked Lead-Time 15 Weeks

$1.03

$0.949

$0.792

$0.727

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 60V 3A 10.8Ohms

TRF250-120ST-RG-B-0.5
Littelfuse
2,000: $0.52
Non-Stocked

Mfr. Part No.
TRF250-120ST-RG-B-0.5

Mouser Part No
650-TRF250120STRGB.5

Resettable Fuses - PPTC 60V 3A 10.8Ohms

Datasheet

Non-Stocked

$0.52

$0.498

Min.: 2,000
Mult.: 2,000

Resettable Fuses - PPTC 250V .12A-HD 3A MAX

TRF250-120T-R1-B-0.5
Littelfuse
1: $1.01
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
TRF250-120T-R1-B-0.5

Mouser Part No
650-TRF250120TR1B0.5

Resettable Fuses - PPTC 250V .12A-HD 3A MAX

Datasheet

Non-Stocked Lead-Time 15 Weeks

$1.01

$0.935

$0.777

$0.717

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 60V 3A 10.5Ohms

TRF250-120T-R2-B-0.5-2
Littelfuse
1: $1.40
Non-Stocked

Mfr. Part No.
TRF250-120T-R2-B-0.5-2

Mouser Part No
650-TRF250120TR2B.52

Resettable Fuses - PPTC 60V 3A 10.5Ohms

Datasheet

Non-Stocked

Cut Tape

$1.40

$1.20

$1.05

$0.956

View

Reel

$0.47

Min.: 1
Mult.: 1

Reel: 1,500

Resettable Fuses - PPTC .12A 250V

TRF250-120T-RC-B-0.5
Littelfuse
10,000: $0.503
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
TRF250-120T-RC-B-0.5

Mouser Part No
650-TRF250120TRCB.5

Resettable Fuses - PPTC .12A 250V

Datasheet

Non-Stocked Lead-Time 15 Weeks

$0.503

Min.: 10,000
Mult.: 500

Resettable Fuses - PPTC 60V 3A 7.5Ohms

TRF250-120T-RC-B-0.5-2
Littelfuse
7,500: $0.617
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
TRF250-120T-RC-B-0.5-2

Mouser Part No
650-TRF250120TRCB.52

Resettable Fuses - PPTC 60V 3A 7.5Ohms

Datasheet

Non-Stocked Lead-Time 15 Weeks

Cut Tape

$0.617

Min.: 7,500
Mult.: 1,500

Reel: 1,500

Resettable Fuses - PPTC .12A 250V

TRF250-120T-RF-B-0.5-2
Littelfuse
1: $1.31
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
TRF250-120T-RF-B-0.5-2

Mouser Part No
650-TRF250120TRFB.5

Resettable Fuses - PPTC .12A 250V

Datasheet

Non-Stocked Lead-Time 15 Weeks

Cut Tape

$1.31

$1.20

$0.998

$0.922

View

Reel

$0.706

Min.: 1
Mult.: 1

Reel: 1,500

Resettable Fuses - PPTC

TRF250-120UST-B-0.5
Littelfuse
1: $0.931
Non-Stocked

Mfr. Part No.
TRF250-120UST-B-0.5

Mouser Part No
650-TRF250120USTB0.5

Resettable Fuses - PPTC

Datasheet

Non-Stocked

$0.931

$0.855

$0.71

$0.655

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 600V .15A-HD 3A MAX

TRF600-150-B-0.5
Littelfuse
1: $1.40
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
TRF600-150-B-0.5

Mouser Part No
650-TRF600-150-B-0.5

Resettable Fuses - PPTC 600V .15A-HD 3A MAX

Datasheet

Non-Stocked Lead-Time 15 Weeks

$1.40

$1.29

$1.07

$0.99

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 250V 3A 10Ohms

TRF600-150-R2-B-0.5
Littelfuse
10,000: $0.644
Non-Stocked

Mfr. Part No.
TRF600-150-R2-B-0.5

Mouser Part No
650-TRF600-150-R2B.5

Resettable Fuses - PPTC 250V 3A 10Ohms

Datasheet

Non-Stocked

$0.644

Min.: 10,000
Mult.: 2,000

Resettable Fuses - PPTC 250V 3A 1.00W PolySwitch Reset Dev

TRF600-150-RC
Littelfuse
2,000: $0.831
Non-Stocked

Mfr. Part No.
TRF600-150-RC

Mouser Part No
650-TRF600-150-RC

Resettable Fuses - PPTC 250V 3A 1.00W PolySwitch Reset Dev

Datasheet

Non-Stocked

$0.831

$0.664

Min.: 2,000
Mult.: 2,000

Resettable Fuses - PPTC Polyswitch 0.3A

TRF600-150S-2
Littelfuse
1,500: $0.726
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
TRF600-150S-2

Mouser Part No
650-TRF600-150S-2

Resettable Fuses - PPTC Polyswitch 0.3A

Datasheet

Non-Stocked Lead-Time 15 Weeks

Reel

$0.726

Min.: 1,500
Mult.: 1,500

Reel: 1,500

Resettable Fuses - PPTC 600V .15A-HD 3A MAX

TRF600-150-RB-B-0.5
Littelfuse
10,000: $0.739
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
TRF600-150-RB-B-0.5

Mouser Part No
650-TRF600150RBB0.5

Resettable Fuses - PPTC 600V .15A-HD 3A MAX

Datasheet

Non-Stocked Lead-Time 15 Weeks

$0.739

Min.: 10,000
Mult.: 500

Resettable Fuses - PPTC Polyswitch 0.26A

TS250-130F-RC-2
Littelfuse
1: $1.74
Non-Stocked

Mfr. Part No.
TS250-130F-RC-2

Mouser Part No
650-TS250-130F-RC-2

Resettable Fuses - PPTC Polyswitch 0.26A

Datasheet

Non-Stocked

Cut Tape

$1.74

$1.49

$1.30

$1.18

View

Reel

$0.571

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,500

Resettable Fuses - PPTC .13A 60Vdc 250Vrms

TS250-130F-B-0.5-2
Littelfuse
7,500: $0.963
Non-Stocked

Mfr. Part No.
TS250-130F-B-0.5-2

Mouser Part No
650-TS250-130FB0.5-2

Resettable Fuses - PPTC .13A 60Vdc 250Vrms

Datasheet

Non-Stocked

Cut Tape

$0.963

Min.: 7,500
Mult.: 1,500

Reel: 1,500