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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: $0.557
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

$0.557

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

Resettable Fuses - PPTC 60V 3A 8Ohms

TRF250-120-B-0.5
Littelfuse
10,000: $0.374
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

$0.374

Min.: 10,000
Mult.: 500

Resettable Fuses - PPTC 60V 3A 8Ohms

TRF250-120S-B-0.5
Littelfuse
10,000: $0.38
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

$0.38

Min.: 10,000
Mult.: 500

Resettable Fuses - PPTC .12A 250V

TRF250-120T-2
Littelfuse
1: $0.96
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

$0.96

$0.799

$0.736

$0.611

View

Reel

$0.386

Min.: 1
Mult.: 1

Reel: 1,500

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

TRF250-120T-B-0.5
Littelfuse
1: $0.75
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

$0.75

$0.689

$0.572

$0.528

View

Min.: 1
Mult.: 1

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

TRF250-120U
Littelfuse
1: $0.70
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

$0.70

$0.638

$0.529

$0.489

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC .12A 250V

TRF250-120U-2
Littelfuse
1: $0.80
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

$0.80

$0.714

$0.573

$0.545

View

Reel

$0.379

Min.: 1
Mult.: 1

Reel: 1,500

Resettable Fuses - PPTC 60V 3A 10Ohms

TRF250-120UA
Littelfuse
1: $0.70
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

$0.70

$0.638

$0.529

$0.488

View

Min.: 1
Mult.: 1

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

TRF250-120US
Littelfuse
1: $0.74
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

$0.74

$0.671

$0.613

$0.463

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 60V 3A 10Ohms

TRF250-120US-2
Littelfuse
1: $0.87
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

$0.87

$0.718

$0.663

$0.551

View

Reel

$0.379

Min.: 1
Mult.: 1

Reel: 1,500

Resettable Fuses - PPTC

TRF250-120UT
Littelfuse
1: $0.74
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

$0.74

$0.683

$0.57

$0.523

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 60V 3A 10.8Ohms

TRF250-120ST-RG-B-0.5
Littelfuse
2,000: $0.374
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

$0.374

$0.358

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

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

TRF250-120T-R1-B-0.5
Littelfuse
1: $0.73
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

$0.73

$0.673

$0.559

$0.516

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 60V 3A 10.5Ohms

TRF250-120T-R2-B-0.5-2
Littelfuse
1: $1.01
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

$1.01

$0.865

$0.758

$0.688

View

Reel

$0.338

Min.: 1
Mult.: 1

Reel: 1,500

Resettable Fuses - PPTC .12A 250V

TRF250-120T-RC-B-0.5
Littelfuse
10,000: $0.362
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

$0.362

Min.: 10,000
Mult.: 500

Resettable Fuses - PPTC 60V 3A 7.5Ohms

TRF250-120T-RC-B-0.5-2
Littelfuse
7,500: $0.444
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

$0.444

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

Reel: 1,500

Resettable Fuses - PPTC .12A 250V

TRF250-120T-RF-B-0.5-2
Littelfuse
1,500: $0.508
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

Reel

$0.508

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

Reel: 1,500

Resettable Fuses - PPTC

TRF250-120UST-B-0.5
Littelfuse
1: $0.67
Non-Stocked

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

Mouser Part No
650-TRF250120USTB0.5

Resettable Fuses - PPTC

Datasheet

Non-Stocked

$0.67

$0.615

$0.511

$0.471

View

Min.: 1
Mult.: 1

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

TRF600-150-B-0.5
Littelfuse
1: $1.01
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

$1.01

$0.929

$0.772

$0.712

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 250V 3A 10Ohms

TRF600-150-R2-B-0.5
Littelfuse
10,000: $0.463
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

$0.463

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

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

TRF600-150-RC
Littelfuse
2,000: $0.598
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

$0.598

$0.478

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

Resettable Fuses - PPTC Polyswitch 0.3A

TRF600-150S-2
Littelfuse
1,500: $0.522
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

$0.522

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: $0.532
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

$0.532

Min.: 10,000
Mult.: 500

Resettable Fuses - PPTC Polyswitch 0.26A

TS250-130F-RC-2
Littelfuse
1: $1.25
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

$1.25

$1.07

$0.936

$0.85

View

Reel

$0.411

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,500

Resettable Fuses - PPTC .13A 60Vdc 250Vrms

TS250-130F-B-0.5-2
Littelfuse
7,500: $0.693
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

$0.693

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

Reel: 1,500