Circuit Protection – Mouser Singapore

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Gas Discharge Tube for RS-485 Ports

Bourns Gas Discharge Tube (GDT) for RS-485 Ports is designed to meet industry standards on RS-485 port interfaces and to provide circuit protection in noisy and harsh electrical environments. For exposed lines that may see large and fast surges and where failure is not acceptable, a three-stage Bourns protection system is recommended.

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Types of Circuit Protection

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Part #

ESD Protection Diodes / TVS Diodes 250volts 1uA 1 Amps Uni-Dir

SMCJ250A
Bourns
1: $0.681
14,157In Stock

Mfr. Part No.
SMCJ250A

Mouser Part No
652-SMCJ250A

Bourns

ESD Protection Diodes / TVS Diodes 250volts 1uA 1 Amps Uni-Dir

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Datasheet

14,157In Stock

Cut Tape

$0.681

$0.564

$0.48

Reel

$0.382

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 26volts 5uA 35.6 Amps Uni-Dir

SMCJ26A
Bourns
1: $0.334
12,771In Stock

Mfr. Part No.
SMCJ26A

Mouser Part No
652-SMCJ26A

Bourns

ESD Protection Diodes / TVS Diodes 26volts 5uA 35.6 Amps Uni-Dir

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Datasheet

12,771In Stock

Cut Tape

$0.334

$0.303

$0.288

$0.286

Reel

$0.236

$0.227

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 26volts 1.5kW 5% Uni-Dir. AEC-Q101

SMCJ26A-Q
Bourns
1: $1.11
33,446In Stock

Mfr. Part No.
SMCJ26A-Q

Mouser Part No
652-SMCJ26A-Q

Bourns

ESD Protection Diodes / TVS Diodes 26volts 1.5kW 5% Uni-Dir. AEC-Q101

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Datasheet

33,446In Stock

Cut Tape

$1.11

$0.801

$0.589

$0.521

$0.471

Reel

$0.336

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 26volts 5uA 35.6 Amps Bi-Dir

SMCJ26CA
Bourns
1: $0.473
6,407In Stock

Mfr. Part No.
SMCJ26CA

Mouser Part No
652-SMCJ26CA

Bourns

ESD Protection Diodes / TVS Diodes 26volts 5uA 35.6 Amps Bi-Dir

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Datasheet

6,407In Stock

Cut Tape

$0.473

$0.46

$0.427

$0.373

Reel

$0.296

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 26volts 1.5kW 5% Bi-Dir. AEC-Q101

SMCJ26CA-Q
Bourns
1: $1.40
9,507In Stock
12,000Expected 27/7/2026

Mfr. Part No.
SMCJ26CA-Q

Mouser Part No
652-SMCJ26CA-Q

Bourns

ESD Protection Diodes / TVS Diodes 26volts 1.5kW 5% Bi-Dir. AEC-Q101

Learn More

Datasheet

9,507In Stock

12,000Expected 27/7/2026

Cut Tape

$1.40

$0.891

$0.624

$0.512

$0.471

Reel

$0.396

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 28volts 5uA 33 Amps Uni-Dir

SMCJ28A
Bourns
1: $0.542
32,466In Stock

Mfr. Part No.
SMCJ28A

Mouser Part No
652-SMCJ28A

Bourns

ESD Protection Diodes / TVS Diodes 28volts 5uA 33 Amps Uni-Dir

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Datasheet

32,466In Stock

Cut Tape

$0.542

$0.461

$0.40

$0.366

Reel

$0.242

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 28volts 5uA 33 Amps Bi-Dir

SMCJ28CA
Bourns
1: $0.917
12,514In Stock

Mfr. Part No.
SMCJ28CA

Mouser Part No
652-SMCJ28CA

Bourns

ESD Protection Diodes / TVS Diodes 28volts 5uA 33 Amps Bi-Dir

Learn More

Datasheet

12,514In Stock

Cut Tape

$0.917

$0.738

$0.46

$0.389

Reel

$0.309

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 30volts 5uA 31 Amps Uni-Dir

SMCJ30A
Bourns
1: $0.792
11,902In Stock
12,000Expected 20/7/2026

Mfr. Part No.
SMCJ30A

Mouser Part No
652-SMCJ30A

Bourns

ESD Protection Diodes / TVS Diodes 30volts 5uA 31 Amps Uni-Dir

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Datasheet

11,902In Stock

12,000Expected 20/7/2026

Cut Tape

$0.792

$0.607

$0.31

$0.293

$0.279

Reel

$0.227

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 33volts 5uA 28.1 Amps Uni-Dir

SMCJ33A
Bourns
1: $0.667
13,609In Stock

Mfr. Part No.
SMCJ33A

Mouser Part No
652-SMCJ33A

Bourns

ESD Protection Diodes / TVS Diodes 33volts 5uA 28.1 Amps Uni-Dir

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Datasheet

13,609In Stock

Cut Tape

$0.667

$0.549

$0.378

$0.279

Reel

$0.227

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 33volts 5uA 28.1 Amps Bi-Dir

SMCJ33CA
Bourns
1: $0.917
12,348In Stock

Mfr. Part No.
SMCJ33CA

Mouser Part No
652-SMCJ33CA

Bourns

ESD Protection Diodes / TVS Diodes 33volts 5uA 28.1 Amps Bi-Dir

Learn More

Datasheet

12,348In Stock

Cut Tape

$0.917

$0.709

$0.492

$0.396

Reel

$0.296

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 350volts 1uA 1 Amps Uni-Dir

SMCJ350A
Bourns
1: $1.22
1,807In Stock

Mfr. Part No.
SMCJ350A

Mouser Part No
652-SMCJ350A

Bourns

ESD Protection Diodes / TVS Diodes 350volts 1uA 1 Amps Uni-Dir

Learn More

Datasheet

1,807In Stock

Cut Tape

$1.22

$0.933

$0.599

$0.485

$0.442

Reel

$0.391

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 350volts 1uA 2.6 Amps Bi-Dir

SMCJ350CA
Bourns
1: $1.07
15,729In Stock
12,000Expected 29/5/2026

Mfr. Part No.
SMCJ350CA

Mouser Part No
652-SMCJ350CA

Bourns

ESD Protection Diodes / TVS Diodes 350volts 1uA 2.6 Amps Bi-Dir

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Datasheet

15,729In Stock

12,000Expected 29/5/2026

Cut Tape

$1.07

$0.902

$0.607

$0.60

$0.552

Reel

$0.503

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 400volts 1uA 1 Amps Uni-Dir

SMCJ400A
Bourns
1: $1.53
10,664In Stock

Mfr. Part No.
SMCJ400A

Mouser Part No
652-SMCJ400A

Bourns

ESD Protection Diodes / TVS Diodes 400volts 1uA 1 Amps Uni-Dir

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Datasheet

10,664In Stock

Cut Tape

$1.53

$1.11

$0.751

$0.594

Reel

$0.449

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 40volts 5uA 23.3 Amps Bi-Dir

SMCJ40CA
Bourns
1: $0.626
13,870In Stock

Mfr. Part No.
SMCJ40CA

Mouser Part No
652-SMCJ40CA

Bourns

ESD Protection Diodes / TVS Diodes 40volts 5uA 23.3 Amps Bi-Dir

Learn More

Datasheet

13,870In Stock

Cut Tape

$0.626

$0.545

$0.404

$0.348

Reel

$0.282

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 43volts 5uA 21.6 Amps Bi-Dir

SMCJ43CA
Bourns
1: $0.612
16,144In Stock

Mfr. Part No.
SMCJ43CA

Mouser Part No
652-SMCJ43CA

Bourns

ESD Protection Diodes / TVS Diodes 43volts 5uA 21.6 Amps Bi-Dir

Learn More

Datasheet

16,144In Stock

Cut Tape

$0.612

$0.538

$0.324

$0.295

Reel

$0.293

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 440volts 1uA 2.1 Amps Bi-Dir

SMCJ440CA
Bourns
1: $0.89
4,254In Stock

Mfr. Part No.
SMCJ440CA

Mouser Part No
652-SMCJ440CA

Bourns

ESD Protection Diodes / TVS Diodes 440volts 1uA 2.1 Amps Bi-Dir

Learn More

Datasheet

4,254In Stock

Cut Tape

$0.89

$0.742

$0.607

$0.606

$0.553

Reel

$0.503

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 45volts 5uA 20.6 Amps Uni-Dir

SMCJ45A
Bourns
1: $0.445
11,210In Stock

Mfr. Part No.
SMCJ45A

Mouser Part No
652-SMCJ45A

Bourns

ESD Protection Diodes / TVS Diodes 45volts 5uA 20.6 Amps Uni-Dir

Learn More

Datasheet

11,210In Stock

Cut Tape

$0.445

$0.385

$0.299

$0.271

$0.27

Reel

$0.227

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 45volts 5uA 20.6 Amps Bi-Dir

SMCJ45CA
Bourns
1: $1.40
10,899In Stock

Mfr. Part No.
SMCJ45CA

Mouser Part No
652-SMCJ45CA

Bourns

ESD Protection Diodes / TVS Diodes 45volts 5uA 20.6 Amps Bi-Dir

Learn More

Datasheet

10,899In Stock

Cut Tape

$1.40

$0.877

$0.574

$0.442

Reel

$0.30

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 48volts 5uA 19.4 Amps Uni-Dir

SMCJ48A
Bourns
1: $0.598
10,431In Stock

Mfr. Part No.
SMCJ48A

Mouser Part No
652-SMCJ48A

Bourns

ESD Protection Diodes / TVS Diodes 48volts 5uA 19.4 Amps Uni-Dir

Learn More

Datasheet

10,431In Stock

Cut Tape

$0.598

$0.499

$0.289

$0.271

$0.27

Reel

$0.227

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 48volts 5uA 19.4 Amps Bi-Dir

SMCJ48CA
Bourns
1: $0.695
11,120In Stock

Mfr. Part No.
SMCJ48CA

Mouser Part No
652-SMCJ48CA

Bourns

ESD Protection Diodes / TVS Diodes 48volts 5uA 19.4 Amps Bi-Dir

Learn More

Datasheet

11,120In Stock

Cut Tape

$0.695

$0.346

$0.338

Reel

$0.293

$0.288

$0.282

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 5volts 1000uA 163 Amps Bi-Dir

SMCJ5.0CA
Bourns
1: $0.667
6,636In Stock

Mfr. Part No.
SMCJ5.0CA

Mouser Part No
652-SMCJ5.0CA

Bourns

ESD Protection Diodes / TVS Diodes 5volts 1000uA 163 Amps Bi-Dir

Learn More

Datasheet

6,636In Stock

Cut Tape

$0.667

$0.571

$0.404

$0.346

Reel

$0.284

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 54volts 5uA 17.2 Amps Bi-Dir

SMCJ54CA
Bourns
1: $0.681
7,792In Stock

Mfr. Part No.
SMCJ54CA

Mouser Part No
652-SMCJ54CA

Bourns

ESD Protection Diodes / TVS Diodes 54volts 5uA 17.2 Amps Bi-Dir

Learn More

Datasheet

7,792In Stock

Cut Tape

$0.681

$0.603

$0.325

$0.324

Reel

$0.292

$0.282

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 54volts 1.5kW 5% Bi-Dir. AEC-Q101

SMCJ54CA-Q
Bourns
1: $0.917
7,032In Stock

Mfr. Part No.
SMCJ54CA-Q

Mouser Part No
652-SMCJ54CA-Q

Bourns

ESD Protection Diodes / TVS Diodes 54volts 1.5kW 5% Bi-Dir. AEC-Q101

Learn More

Datasheet

7,032In Stock

Cut Tape

$0.917

$0.791

$0.548

$0.456

Reel

$0.385

$0.371

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 58volts 5uA 16 Amps Uni-Dir

SMCJ58A
Bourns
1: $0.306
9,232In Stock

Mfr. Part No.
SMCJ58A

Mouser Part No
652-SMCJ58A

Bourns

ESD Protection Diodes / TVS Diodes 58volts 5uA 16 Amps Uni-Dir

Learn More

Datasheet

9,232In Stock

Cut Tape

$0.306

$0.278

Reel

$0.236

$0.231

$0.227

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 6volts 1000uA 145.6 Amps Uni-Dir

SMCJ6.0A
Bourns
1: $0.806
11,299In Stock

Mfr. Part No.
SMCJ6.0A

Mouser Part No
652-SMCJ6.0A

Bourns

ESD Protection Diodes / TVS Diodes 6volts 1000uA 145.6 Amps Uni-Dir

Learn More

Datasheet

11,299In Stock

Cut Tape

$0.806

$0.614

$0.313

$0.279

Reel

$0.228

$0.227

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

Gas Discharge Tube for RS-485 Ports

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