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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Termination Style	Package/Case	Clamping Voltage	Minimum Operating Temperature	Maximum Operating Temperature	Qualification	Packaging
Varistors CHIP GUARD 5VOLT CG0603MLU-05E Bourns 1: 0,275 € 51.530In Stock	Mfr. Part No. CG0603MLU-05E Mouser Part No 652-CG0603MLU-05E	Bourns	Varistors CHIP GUARD 5VOLT Learn More about Bourns gdt	Datasheet	51.530In Stock	Cut Tape 0,275 € 0,166 € 0,132 € 0,125 € Reel 0,109 € View 0,12 € 0,114 € 0,105 € 0,103 € MouseReel Available	Min.: 1 Mult.: 1 : 5.000	MLU	SMD/SMT	0603 (1608 metric)	25 V	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel
Varistors CHIP GUARD CG0402MLC-24LGA Bourns 1: 0,525 € 26.824In Stock	Mfr. Part No. CG0402MLC-24LGA Mouser Part No 652-CG0402MLC-24LGA	Bourns	Varistors CHIP GUARD Learn More about Bourns mlc protectors	Datasheet	26.824In Stock	Cut Tape 0,525 € 0,336 € 0,209 € 0,144 € Reel 0,085 € View 0,125 € 0,111 € 0,099 € 0,084 € MouseReel Available	Min.: 1 Mult.: 1 : 10.000	MLC	SMD/SMT	0402 (1005 metric)	25 V	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel
Varistors Chip Guard 0402 12 VOLTS CG0402MLC-12LGA Bourns 1: 0,215 € 42.401In Stock	Mfr. Part No. CG0402MLC-12LGA Mouser Part No 652-CG0402MLC-12LGA	Bourns	Varistors Chip Guard 0402 12 VOLTS Learn More about Bourns mlc protectors	Datasheet	42.401In Stock	Cut Tape 0,215 € 0,128 € 0,101 € 0,095 € Reel 0,079 € View 0,091 € 0,087 € 0,083 € 0,077 € MouseReel Available	Min.: 1 Mult.: 1 : 10.000	MLC	SMD/SMT	0402 (1005 metric)	25 V	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel
Varistors 5VDC 0.2pF 0201 CG0201MLC-05H Bourns 1: 0,215 € 27.012In Stock	Mfr. Part No. CG0201MLC-05H Mouser Part No 652-CG0201MLC-05H	Bourns	Varistors 5VDC 0.2pF 0201 Learn More about Bourns mlc protectors	Datasheet	27.012In Stock	Cut Tape 0,215 € 0,128 € 0,101 € 0,095 € View Reel 0,082 € 0,091 € 0,087 € 0,083 € 0,082 € 0,082 € MouseReel Available	Min.: 1 Mult.: 1 : 15.000	MLC	SMD/SMT	0201 (0603 metric)	30 V	- 55 C	+ 125 C		Reel, Cut Tape, MouseReel
Varistors CHIP GUARD CG1206MLC-12E Bourns 1: 0,636 € 8.801In Stock	Mfr. Part No. CG1206MLC-12E Mouser Part No 652-CG1206MLC-12E	Bourns	Varistors CHIP GUARD Learn More about Bourns mlc protectors	Datasheet	8.801In Stock	Cut Tape 0,636 € 0,408 € 0,333 € 0,318 € Reel 0,281 € View 0,306 € 0,296 € 0,27 € 0,267 € MouseReel Available	Min.: 1 Mult.: 1 : 5.000	MLC	SMD/SMT	1206 (3216 metric)	30 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
Varistors Chip Guard 0603 5 Volts CG0603MLC-05E Bourns 1: 0,241 € 153.236In Stock	Mfr. Part No. CG0603MLC-05E Mouser Part No 652-CG0603MLC-05E	Bourns	Varistors Chip Guard 0603 5 Volts Learn More about Bourns mlc protectors	Datasheet	153.236In Stock	Cut Tape 0,241 € 0,15 € 0,118 € 0,112 € Reel 0,097 € View 0,107 € 0,101 € 0,094 € 0,092 € MouseReel Available	Min.: 1 Mult.: 1 : 5.000	MLC	SMD/SMT	0603 (1608 metric)	25 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
Varistors CHIP GUARD 3.3VOLT CG0603MLU-3.3E Bourns 1: 0,275 € 36.352In Stock	Mfr. Part No. CG0603MLU-3.3E Mouser Part No 652-CG0603MLU-3.3E	Bourns	Varistors CHIP GUARD 3.3VOLT Learn More about Bourns gdt	Datasheet	36.352In Stock	Cut Tape 0,275 € 0,166 € 0,132 € 0,125 € Reel 0,113 € View 0,12 € 0,117 € 0,111 € 0,109 € MouseReel Available	Min.: 1 Mult.: 1 : 5.000	MLU	SMD/SMT	0603 (1608 metric)	25 V	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel
Varistors Chip Guard 0402 5 Volts CG0402MLC-05LG Bourns 1: 0,258 € 53.455In Stock 90.000Expected 12/3/2026	Mfr. Part No. CG0402MLC-05LG Mouser Part No 652-CG0402MLC-05LG	Bourns	Varistors Chip Guard 0402 5 Volts Learn More about Bourns mlc protectors	Datasheet	53.455In Stock 90.000Expected 12/3/2026	Cut Tape 0,258 € 0,154 € 0,121 € 0,114 € Reel 0,081 € View 0,109 € 0,097 € 0,089 € 0,079 € MouseReel Available	Min.: 1 Mult.: 1 : 10.000	MLC	SMD/SMT	0402 (1005 metric)	25 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
Varistors Chip Guard 0402 12 Volts CG0402MLC-12LG Bourns 1: 0,215 € 29.297In Stock	Mfr. Part No. CG0402MLC-12LG Mouser Part No 652-CG0402MLC-12LG	Bourns	Varistors Chip Guard 0402 12 Volts Learn More about Bourns mlc protectors	Datasheet	29.297In Stock	Cut Tape 0,215 € 0,132 € 0,104 € 0,099 € Reel 0,082 € View 0,094 € 0,089 € 0,087 € 0,081 € MouseReel Available	Min.: 1 Mult.: 1 : 10.000	MLC	SMD/SMT	0402 (1005 metric)	25 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
Varistors Chip Guard 0402 24 Volts CG0402MLC-24LG Bourns 1: 0,215 € 18.445In Stock	Mfr. Part No. CG0402MLC-24LG Mouser Part No 652-CG0402MLC-24LG	Bourns	Varistors Chip Guard 0402 24 Volts Learn More about Bourns mlc protectors	Datasheet	18.445In Stock	Cut Tape 0,215 € 0,128 € 0,101 € 0,095 € Reel 0,079 € View 0,091 € 0,087 € 0,083 € 0,078 € MouseReel Available	Min.: 1 Mult.: 1 : 10.000	MLC	SMD/SMT	0402 (1005 metric)	25 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
Varistors Chip Guard 0402 3.3 Volts CG0402MLC-3.3LG Bourns 1: 0,215 € 27.597In Stock	Mfr. Part No. CG0402MLC-3.3LG Mouser Part No 652-CG0402MLC-3.3LG	Bourns	Varistors Chip Guard 0402 3.3 Volts Learn More about Bourns mlc protectors	Datasheet	27.597In Stock	Cut Tape 0,215 € 0,128 € 0,101 € 0,095 € Reel 0,089 € View 0,091 € 0,089 € 0,087 € MouseReel Available	Min.: 1 Mult.: 1 : 10.000	MLC	SMD/SMT	0402 (1005 metric)	25 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
Varistors CHIP GUARD 5VOLT CG0402MLU-05G Bourns 1: 0,241 € 59.178In Stock 100.000Expected 2/25/2027	Mfr. Part No. CG0402MLU-05G Mouser Part No 652-CG0402MLU-05G	Bourns	Varistors CHIP GUARD 5VOLT Learn More about Bourns gdt	Datasheet	59.178In Stock 100.000Expected 2/25/2027	Cut Tape 0,241 € 0,15 € 0,118 € 0,112 € View Reel 0,093 € 0,107 € 0,101 € 0,099 € 0,093 € MouseReel Available	Min.: 1 Mult.: 1 : 10.000	MLU	SMD/SMT	0402 (1005 metric)	25 V	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel
Varistors CHIP GUARD 3.3VOLT CG0402MLU-3.3G Bourns 1: 0,241 € 26.591In Stock	Mfr. Part No. CG0402MLU-3.3G Mouser Part No 652-CG0402MLU-3.3G	Bourns	Varistors CHIP GUARD 3.3VOLT Learn More about Bourns gdt	Datasheet	26.591In Stock	Cut Tape 0,241 € 0,15 € 0,118 € 0,117 € Reel 0,117 € MouseReel Available	Min.: 1 Mult.: 1 : 10.000	MLU	SMD/SMT	0402 (1005 metric)	25 V	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel
Varistors Chip Guard 0603 5 Volts CG0603MLC-05LE Bourns 1: 0,241 € 53.990In Stock	Mfr. Part No. CG0603MLC-05LE Mouser Part No 652-CG0603MLC-05LE	Bourns	Varistors Chip Guard 0603 5 Volts Learn More about Bourns mlc protectors	Datasheet	53.990In Stock	Cut Tape 0,241 € 0,15 € 0,118 € 0,112 € Reel 0,101 € View 0,107 € 0,104 € 0,095 € MouseReel Available	Min.: 1 Mult.: 1 : 5.000	MLC	SMD/SMT	0603 (1608 metric)	25 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
Varistors Chip Guard 0603 12 Volts CG0603MLC-12E Bourns 1: 0,241 € 19.615In Stock	Mfr. Part No. CG0603MLC-12E Mouser Part No 652-CG0603MLC-12E	Bourns	Varistors Chip Guard 0603 12 Volts Learn More about Bourns mlc protectors	Datasheet	19.615In Stock	Cut Tape 0,241 € 0,15 € 0,118 € 0,112 € Reel 0,097 € View 0,107 € 0,101 € 0,094 € 0,092 € MouseReel Available	Min.: 1 Mult.: 1 : 5.000	MLC	SMD/SMT	0603 (1608 metric)	25 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
Varistors CHIP GUARD CG0603MLC-24LE Bourns 1: 0,241 € 18.465In Stock	Mfr. Part No. CG0603MLC-24LE Mouser Part No 652-CG0603MLC-24LE	Bourns	Varistors CHIP GUARD Learn More about Bourns mlc protectors	Datasheet	18.465In Stock	Cut Tape 0,241 € 0,15 € 0,118 € 0,112 € Reel 0,097 € View 0,107 € 0,101 € 0,094 € 0,092 € MouseReel Available	Min.: 1 Mult.: 1 : 5.000	MLC	SMD/SMT	0603 (1608 metric)	25 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
Varistors CHIP GUARD CG0603MLC-24LEA Bourns 1: 0,241 € 13.837In Stock	Mfr. Part No. CG0603MLC-24LEA Mouser Part No 652-CG0603MLC-24LEA	Bourns	Varistors CHIP GUARD Learn More about Bourns mlc protectors	Datasheet	13.837In Stock	Cut Tape 0,241 € 0,15 € 0,118 € 0,112 € Reel 0,101 € View 0,107 € 0,101 € 0,097 € MouseReel Available	Min.: 1 Mult.: 1 : 5.000	MLC	SMD/SMT	0603 (1608 metric)	25 V	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel
Varistors Chip Guard 0402 24 Volt AEC-Q200 CGA0402MLC-24G Bourns 1: 0,327 € 41.682In Stock	Mfr. Part No. CGA0402MLC-24G Mouser Part No 652-CGA0402MLC-24G	Bourns	Varistors Chip Guard 0402 24 Volt AEC-Q200 Learn More about Bourns mlc protectors	Datasheet	41.682In Stock	Cut Tape 0,327 € 0,20 € 0,159 € 0,151 € View Reel 0,126 € 0,144 € 0,134 € 0,126 € 0,126 € 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
Varistors Chip Guard 0603 24 Volt AEC-Q200 CGA0603MLC-24E Bourns 1: 0,335 € 9.909In Stock	Mfr. Part No. CGA0603MLC-24E Mouser Part No 652-CGA0603MLC-24E	Bourns	Varistors Chip Guard 0603 24 Volt AEC-Q200 Learn More about Bourns mlc protectors	Datasheet	9.909In Stock	Cut Tape 0,335 € 0,205 € 0,163 € 0,156 € Reel 0,137 € View 0,149 € 0,142 € 0,132 € 0,131 € 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
Varistors 5.5VDC 10% 0201 33pF CG0201MLA-5.5MH Bourns 1: 0,086 € 14.425In Stock 30.000Expected 12/14/2026	Mfr. Part No. CG0201MLA-5.5MH Mouser Part No 652-CG0201MLA-5.5MH	Bourns	Varistors 5.5VDC 10% 0201 33pF Learn More about Bourns mla varistors	Datasheet	14.425In Stock 30.000Expected 12/14/2026	Cut Tape 0,086 € 0,032 € 0,024 € 0,022 € View Reel 0,016 € 0,021 € 0,02 € 0,019 € 0,018 € 0,016 € MouseReel Available	Min.: 1 Mult.: 1 : 15.000	MLA	SMD/SMT	0201 (0603 metric)	28 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
Varistors CHIP GUARD 12VOLT CG0402MLU-12G Bourns 1: 0,241 € 5.489In Stock 240.000On Order	Mfr. Part No. CG0402MLU-12G Mouser Part No 652-CG0402MLU-12G	Bourns	Varistors CHIP GUARD 12VOLT Learn More about Bourns gdt	Datasheet	5.489In Stock 240.000On Order On Order Ship Dates Mfr. No: CG0402MLU-12G Stock: 5.489 Can Dispatch Immediately On Order: 100.000 Expected 12/1/2026 140.000 Expected 1/28/2027 Factory Lead Time: 12 Weeks	Cut Tape 0,241 € 0,15 € 0,118 € 0,112 € Reel 0,093 € View 0,107 € 0,101 € 0,099 € 0,092 € MouseReel Available	Min.: 1 Mult.: 1 : 10.000	MLU	SMD/SMT	0402 (1005 metric)	25 V	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel
Varistors CHIP GUARD 24VOLT CG0402MLU-24G Bourns 1: 0,241 € 10.061In Stock	Mfr. Part No. CG0402MLU-24G Mouser Part No 652-CG0402MLU-24G	Bourns	Varistors CHIP GUARD 24VOLT Learn More about Bourns gdt	Datasheet	10.061In Stock	Cut Tape 0,241 € 0,15 € 0,118 € 0,112 € Reel 0,093 € View 0,107 € 0,101 € 0,099 € 0,092 € MouseReel Available	Min.: 1 Mult.: 1 : 10.000	MLU	SMD/SMT	0402 (1005 metric)	25 V	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel
Varistors Chip Guard 0603 5 Volts CG0603MLC-05LEA Bourns 1: 0,258 € 16.053In Stock	Mfr. Part No. CG0603MLC-05LEA Mouser Part No 652-CG0603MLC-05LEA	Bourns	Varistors Chip Guard 0603 5 Volts Learn More about Bourns mlc protectors	Datasheet	16.053In Stock	Cut Tape 0,258 € 0,155 € 0,123 € 0,116 € Reel 0,098 € View 0,111 € 0,106 € 0,093 € 0,092 € MouseReel Available	Min.: 1 Mult.: 1 : 5.000	MLC	SMD/SMT	0603 (1608 metric)	25 V	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel
Varistors Chip Guard 0603 12 Volts CG0603MLC-12LE Bourns 1: 0,241 € 4.520In Stock 10.000Expected 11/3/2026	Mfr. Part No. CG0603MLC-12LE Mouser Part No 652-CG0603MLC-12LE	Bourns	Varistors Chip Guard 0603 12 Volts Learn More about Bourns mlc protectors	Datasheet	4.520In Stock 10.000Expected 11/3/2026	Cut Tape 0,241 € 0,15 € 0,118 € 0,112 € Reel 0,097 € View 0,107 € 0,101 € 0,094 € 0,092 € MouseReel Available	Min.: 1 Mult.: 1 : 5.000	MLC	SMD/SMT	0603 (1608 metric)	25 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
Varistors Chip Guard 0603 12 Volts CG0603MLC-12LEA Bourns 1: 0,241 € 6.922In Stock	Mfr. Part No. CG0603MLC-12LEA Mouser Part No 652-CG0603MLC-12LEA	Bourns	Varistors Chip Guard 0603 12 Volts Learn More about Bourns mlc protectors	Datasheet	6.922In Stock	Cut Tape 0,241 € 0,15 € 0,118 € 0,112 € Reel 0,101 € View 0,107 € 0,101 € 0,094 € 0,093 € MouseReel Available	Min.: 1 Mult.: 1 : 5.000	MLC	SMD/SMT	0603 (1608 metric)	25 V	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel

Gas Discharge Tube for RS-485 Ports

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