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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Description Datasheet Availability Pricing (JPY) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Termination Style
Package / Case
Clamping Voltage
Minimum Operating Temperature
Maximum Operating Temperature
Qualification
Packaging
Bourns Varistors CHIP GUARD
Datasheet
27,124In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

MLC SMD/SMT 0402 (1005 metric) 25 V - 40 C + 125 C Reel, Cut Tape, MouseReel
Bourns Varistors 5VDC 0.2pF 0201
Datasheet
27,025In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 15,000

MLC SMD/SMT 0201 (0603 metric) 30 V - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Varistors CHIP GUARD
Datasheet
8,841In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

MLC SMD/SMT 1206 (3216 metric) 30 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Varistors Chip Guard 0402 12 VOLTS
Datasheet
12,401In Stock
30,000Expected 8/12/2026
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

MLC SMD/SMT 0402 (1005 metric) 25 V - 40 C + 125 C Reel, Cut Tape, MouseReel
Bourns Varistors Chip Guard 0402 12 Volts
Datasheet
36,467In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

MLC SMD/SMT 0402 (1005 metric) 25 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Varistors Chip Guard 0402 24 Volts
Datasheet
28,445In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

MLC SMD/SMT 0402 (1005 metric) 25 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Varistors Chip Guard 0402 3.3 Volts
Datasheet
34,980In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

MLC SMD/SMT 0402 (1005 metric) 25 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Varistors CHIP GUARD 5VOLT
Datasheet
16,335In Stock
60,000Expected 11/23/2026
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

MLU SMD/SMT 0402 (1005 metric) 25 V - 40 C + 125 C Reel, Cut Tape, MouseReel
Bourns Varistors CHIP GUARD 12VOLT
Datasheet
34,211In Stock
100,000Expected 12/1/2026
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

MLU SMD/SMT 0402 (1005 metric) 25 V - 40 C + 125 C Reel, Cut Tape, MouseReel
Bourns Varistors CHIP GUARD 24VOLT
Datasheet
21,487In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

MLU SMD/SMT 0402 (1005 metric) 25 V - 40 C + 125 C Reel, Cut Tape, MouseReel
Bourns Varistors CHIP GUARD 3.3VOLT
Datasheet
38,293In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

MLU SMD/SMT 0402 (1005 metric) 25 V - 40 C + 125 C Reel, Cut Tape, MouseReel
Bourns Varistors Chip Guard 0603 5 Volts
Datasheet
18,947In Stock
45,000Expected 11/9/2026
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

MLC SMD/SMT 0603 (1608 metric) 25 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Varistors CHIP GUARD
Datasheet
22,193In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

MLC SMD/SMT 0603 (1608 metric) 25 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Varistors CHIP GUARD 5VOLT
Datasheet
58,297In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

MLU SMD/SMT 0603 (1608 metric) 25 V - 40 C + 125 C Reel, Cut Tape, MouseReel
Bourns Varistors CHIP GUARD 24VOLT
Datasheet
33,080In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

MLU SMD/SMT 0603 (1608 metric) 25 V - 40 C + 125 C Reel, Cut Tape, MouseReel
Bourns Varistors CHIP GUARD 3.3VOLT
Datasheet
13,690In Stock
30,000Expected 10/28/2026
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

MLU SMD/SMT 0603 (1608 metric) 25 V - 40 C + 125 C Reel, Cut Tape, MouseReel
Bourns Varistors Chip Guard 0603 5 Volts
Datasheet
56,207In Stock
105,000Expected 10/21/2026
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

MLC SMD/SMT 0603 (1608 metric) 25 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Varistors Chip Guard 0603 12 Volts
Datasheet
22,465In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

MLC SMD/SMT 0603 (1608 metric) 25 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Varistors Chip Guard 0402 24 Volt AEC-Q200
Datasheet
29,777In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

CGA-MLC SMD/SMT 0402 (1005 metric) 30 V - 55 C + 125 C AEC-Q100 Reel, Cut Tape, MouseReel
Bourns Varistors Chip Guard 0603 12 Volt AEC-Q200
Datasheet
14,079In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

CGA-MLC SMD/SMT 0603 (1608 metric) 30 V - 55 C + 125 C AEC-Q100 Reel, Cut Tape, MouseReel
Bourns Varistors Chip Guard 0603 24 Volt AEC-Q200
Datasheet
11,576In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

CGA-MLC SMD/SMT 0603 (1608 metric) 30 V - 55 C + 125 C AEC-Q100 Reel, Cut Tape, MouseReel
Bourns Varistors Chip Guard 0402 5 Volts
Datasheet
763In Stock
160,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

MLC SMD/SMT 0402 (1005 metric) 25 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Varistors Chip Guard 0402 5 Volts
Datasheet
7,148In Stock
30,000Expected 12/8/2026
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

MLC SMD/SMT 0402 (1005 metric) 25 V - 40 C + 125 C Reel, Cut Tape, MouseReel
Bourns Varistors Chip Guard 0603 5 Volts
Datasheet
6,468In Stock
10,000Expected 10/28/2026
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

MLC SMD/SMT 0603 (1608 metric) 25 V - 40 C + 125 C Reel, Cut Tape, MouseReel
Bourns Varistors Chip Guard 0603 12 Volts
Datasheet
6,425In Stock
10,000Expected 10/26/2026
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

MLC SMD/SMT 0603 (1608 metric) 25 V - 40 C + 85 C Reel, Cut Tape, MouseReel