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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.
ESD Protection Diodes / TVS Diodes 51volts 5uA 4.9 Amps Bi-Dir SMAJ51CA Bourns 1: 0,482 € 46 375In Stock	Mfr. Part No. SMAJ51CA Mouser Part No 652-SMAJ51CA	Bourns	ESD Protection Diodes / TVS Diodes 51volts 5uA 4.9 Amps Bi-Dir Learn More about Bourns smxj	Datasheet	46 375In Stock	Cut Tape 0,482 € 0,23 € 0,176 € 0,147 € Reel 0,10 € View 0,129 € 0,095 € MouseReel Available	Min.: 1 Mult.: 1 : 5 000
ESD Protection Diodes / TVS Diodes 54volts 400W 5% Uni-Dir. AEC-Q101 SMAJ54A-Q Bourns 1: 0,499 € 20 100In Stock	Mfr. Part No. SMAJ54A-Q Mouser Part No 652-SMAJ54A-Q	Bourns	ESD Protection Diodes / TVS Diodes 54volts 400W 5% Uni-Dir. AEC-Q101 Learn More about Bourns smxj q aec q101 tvs diodes	Datasheet	20 100In Stock	Cut Tape 0,499 € 0,223 € 0,194 € 0,147 € Reel 0,103 € View 0,145 € 0,127 € 0,09 € 0,082 € MouseReel Available	Min.: 1 Mult.: 1 : 5 000
ESD Protection Diodes / TVS Diodes 6.5volts 500/1000uA 35.7 Amps Bi-Dir SMAJ6.5CA Bourns 1: 0,499 € 16 549In Stock	Mfr. Part No. SMAJ6.5CA Mouser Part No 652-SMAJ6.5CA	Bourns	ESD Protection Diodes / TVS Diodes 6.5volts 500/1000uA 35.7 Amps Bi-Dir Learn More about Bourns smxj	Datasheet	16 549In Stock	Cut Tape 0,499 € 0,225 € 0,198 € 0,149 € Reel 0,095 € View 0,145 € 0,13 € 0,082 € 0,077 € MouseReel Available	Min.: 1 Mult.: 1 : 5 000
ESD Protection Diodes / TVS Diodes 60volts 5uA 4.1 Amps Bi-Dir SMAJ60CA Bourns 1: 0,482 € 34 404In Stock	Mfr. Part No. SMAJ60CA Mouser Part No 652-SMAJ60CA	Bourns	ESD Protection Diodes / TVS Diodes 60volts 5uA 4.1 Amps Bi-Dir Learn More about Bourns smxj	Datasheet	34 404In Stock	Cut Tape 0,482 € 0,215 € 0,189 € 0,142 € Reel 0,082 € View 0,137 € 0,119 € 0,073 € MouseReel Available	Min.: 1 Mult.: 1 : 5 000
ESD Protection Diodes / TVS Diodes 64volts 5uA 3.9 Amps Bi-Dir SMAJ64CA Bourns 1: 0,499 € 19 681In Stock	Mfr. Part No. SMAJ64CA Mouser Part No 652-SMAJ64CA	Bourns	ESD Protection Diodes / TVS Diodes 64volts 5uA 3.9 Amps Bi-Dir Learn More about Bourns smxj	Datasheet	19 681In Stock	Cut Tape 0,499 € 0,27 € 0,237 € 0,18 € Reel 0,123 € View 0,152 € 0,105 € 0,083 € MouseReel Available	Min.: 1 Mult.: 1 : 5 000
ESD Protection Diodes / TVS Diodes 8.5V 400W 5% BiDirectional SMAJ8.5CA-Q Bourns 1: 0,499 € 21 042In Stock	Mfr. Part No. SMAJ8.5CA-Q Mouser Part No 652-SMAJ8.5CA-Q	Bourns	ESD Protection Diodes / TVS Diodes 8.5V 400W 5% BiDirectional Learn More about Bourns smxj q aec q101 tvs diodes	Datasheet	21 042In Stock	Cut Tape 0,499 € 0,223 € 0,195 € 0,147 € Reel 0,101 € View 0,144 € 0,128 € 0,083 € MouseReel Available	Min.: 1 Mult.: 1 : 5 000
ESD Protection Diodes / TVS Diodes 110volts 5uA 3.4 Amps Bi-Dir SMBJ110CA Bourns 1: 0,593 € 16 516In Stock	Mfr. Part No. SMBJ110CA Mouser Part No 652-SMBJ110CA	Bourns	ESD Protection Diodes / TVS Diodes 110volts 5uA 3.4 Amps Bi-Dir Learn More about Bourns smxj	Datasheet	16 516In Stock	Cut Tape 0,593 € 0,266 € 0,234 € 0,177 € Reel 0,135 € View 0,172 € 0,13 € 0,11 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 12volts 600W 5% Uni-Dir. AEC-Q101 SMBJ12A-Q Bourns 1: 0,602 € 12 412In Stock	Mfr. Part No. SMBJ12A-Q Mouser Part No 652-SMBJ12A-Q	Bourns	ESD Protection Diodes / TVS Diodes 12volts 600W 5% Uni-Dir. AEC-Q101 Learn More about Bourns smxj q aec q101 tvs diodes	Datasheet	12 412In Stock	Cut Tape 0,602 € 0,273 € 0,24 € 0,181 € Reel 0,138 € View 0,12 € 0,11 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 12volts 5uA 30.2 Amps Bi-Dir SMBJ12CA Bourns 1: 0,542 € 17 835In Stock 39 000On Order	Mfr. Part No. SMBJ12CA Mouser Part No 652-SMBJ12CA	Bourns	ESD Protection Diodes / TVS Diodes 12volts 5uA 30.2 Amps Bi-Dir Learn More about Bourns smxj	Datasheet	17 835In Stock 39 000On Order On Order Ship Dates Mfr. No: SMBJ12CA Stock: 17 835 Can Dispatch Immediately On Order: 12 000 Expected 17/11/2026 27 000 Expected 23/08/2027 Factory Lead Time: 22 Weeks	Cut Tape 0,542 € 0,244 € 0,201 € 0,158 € Reel 0,103 € View 0,144 € 0,101 € 0,092 € 0,08 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 12volts 600W 5% Bi-Dir. AEC-Q101 SMBJ12CA-Q Bourns 1: 0,654 € 14 464In Stock	Mfr. Part No. SMBJ12CA-Q Mouser Part No 652-SMBJ12CA-Q	Bourns	ESD Protection Diodes / TVS Diodes 12volts 600W 5% Bi-Dir. AEC-Q101 Learn More about Bourns smxj q aec q101 tvs diodes	Datasheet	14 464In Stock	Cut Tape 0,654 € 0,298 € 0,262 € 0,20 € Reel 0,152 € 0,127 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 14volts 600W 5% Uni-Dir. AEC-Q101 SMBJ14A-Q Bourns 1: 0,602 € 11 411In Stock	Mfr. Part No. SMBJ14A-Q Mouser Part No 652-SMBJ14A-Q	Bourns	ESD Protection Diodes / TVS Diodes 14volts 600W 5% Uni-Dir. AEC-Q101 Learn More about Bourns smxj q aec q101 tvs diodes	Datasheet	11 411In Stock	Cut Tape 0,602 € 0,273 € 0,24 € 0,181 € Reel 0,162 € View 0,143 € 0,136 € 0,112 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 15volts 5uA 24 Amps Bi-Dir SMBJ15CA Bourns 1: 0,542 € 16 582In Stock	Mfr. Part No. SMBJ15CA Mouser Part No 652-SMBJ15CA	Bourns	ESD Protection Diodes / TVS Diodes 15volts 5uA 24 Amps Bi-Dir Learn More about Bourns smxj	Datasheet	16 582In Stock	Cut Tape 0,542 € 0,244 € 0,214 € 0,162 € Reel 0,108 € View 0,15 € 0,105 € 0,094 € 0,091 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 200volts 1uA 1 Amps Uni-Dir SMBJ200A Bourns 1: 0,80 € 8 684In Stock	Mfr. Part No. SMBJ200A Mouser Part No 652-SMBJ200A	Bourns	ESD Protection Diodes / TVS Diodes 200volts 1uA 1 Amps Uni-Dir Learn More about Bourns smxj	Datasheet	8 684In Stock	Cut Tape 0,80 € 0,366 € 0,318 € 0,247 € Reel 0,188 € View 0,237 € 0,168 € 0,158 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 20volts 5uA 18.6 Amps Uni-Dir SMBJ20A Bourns 1: 0,456 € 22 182In Stock	Mfr. Part No. SMBJ20A Mouser Part No 652-SMBJ20A	Bourns	ESD Protection Diodes / TVS Diodes 20volts 5uA 18.6 Amps Uni-Dir Learn More about Bourns smxj	Datasheet	22 182In Stock	Cut Tape 0,456 € 0,223 € 0,192 € 0,144 € Reel 0,095 € View 0,141 € 0,094 € 0,088 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 26volts 600W 5% Bi-Dir. AEC-Q101 SMBJ26CA-Q Bourns 1: 0,791 € 10 762In Stock 24 000Expected 31/12/2026	Mfr. Part No. SMBJ26CA-Q Mouser Part No 652-SMBJ26CA-Q	Bourns	ESD Protection Diodes / TVS Diodes 26volts 600W 5% Bi-Dir. AEC-Q101 Learn More about Bourns smxj q aec q101 tvs diodes	Datasheet	10 762In Stock 24 000Expected 31/12/2026	Cut Tape 0,791 € 0,357 € 0,315 € 0,239 € Reel 0,182 € View 0,212 € 0,179 € 0,152 € 0,133 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 28volts 5uA 13.2 Amps Uni-Dir SMBJ28A Bourns 1: 0,447 € 17 398In Stock 30 000Expected 05/04/2027	Mfr. Part No. SMBJ28A Mouser Part No 652-SMBJ28A	Bourns	ESD Protection Diodes / TVS Diodes 28volts 5uA 13.2 Amps Uni-Dir Learn More about Bourns smxj	Datasheet	17 398In Stock 30 000Expected 05/04/2027	Cut Tape 0,447 € 0,203 € 0,178 € 0,133 € Reel 0,095 € View 0,126 € 0,09 € 0,08 € 0,077 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 33volts 600W 5% Uni-Dir. AEC-Q101 SMBJ33A-Q Bourns 1: 0,602 € 12 884In Stock	Mfr. Part No. SMBJ33A-Q Mouser Part No 652-SMBJ33A-Q	Bourns	ESD Protection Diodes / TVS Diodes 33volts 600W 5% Uni-Dir. AEC-Q101 Learn More about Bourns smxj q aec q101 tvs diodes	Datasheet	12 884In Stock	Cut Tape 0,602 € 0,273 € 0,24 € 0,181 € Reel 0,162 € View 0,159 € 0,136 € 0,12 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 36volts 5uA 10.3 Amps Uni-Dir SMBJ36A Bourns 1: 0,482 € 17 467In Stock	Mfr. Part No. SMBJ36A Mouser Part No 652-SMBJ36A	Bourns	ESD Protection Diodes / TVS Diodes 36volts 5uA 10.3 Amps Uni-Dir Learn More about Bourns smxj	Datasheet	17 467In Stock	Cut Tape 0,482 € 0,223 € 0,195 € 0,147 € Reel 0,095 € View 0,144 € 0,089 € 0,085 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 36volts 600W 5% Bi-Dir. AEC-Q101 SMBJ36CA-Q Bourns 1: 0,654 € 30 280In Stock	Mfr. Part No. SMBJ36CA-Q Mouser Part No 652-SMBJ36CA-Q	Bourns	ESD Protection Diodes / TVS Diodes 36volts 600W 5% Bi-Dir. AEC-Q101 Learn More about Bourns smxj q aec q101 tvs diodes	Datasheet	30 280In Stock	Cut Tape 0,654 € 0,298 € 0,262 € 0,20 € Reel 0,152 € 0,117 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 400volts 1uA .9 Amps Bi-Dir SMBJ400CA Bourns 1: 0,903 € 7 461In Stock 12 000Expected 17/03/2027	Mfr. Part No. SMBJ400CA Mouser Part No 652-SMBJ400CA	Bourns	ESD Protection Diodes / TVS Diodes 400volts 1uA .9 Amps Bi-Dir Learn More about Bourns smxj	Datasheet	7 461In Stock 12 000Expected 17/03/2027	Cut Tape 0,903 € 0,415 € 0,367 € 0,282 € Reel 0,203 € View 0,268 € 0,20 € 0,18 € 0,176 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 40volts 5uA 9.3 Amps Bi-Dir SMBJ40CA Bourns 1: 0,516 € 18 367In Stock	Mfr. Part No. SMBJ40CA Mouser Part No 652-SMBJ40CA	Bourns	ESD Protection Diodes / TVS Diodes 40volts 5uA 9.3 Amps Bi-Dir Learn More about Bourns smxj	Datasheet	18 367In Stock	Cut Tape 0,516 € 0,23 € 0,202 € 0,152 € Reel 0,095 € View 0,15 € 0,089 € 0,081 € 0,08 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 40volts 600W 5% Bi-Dir. AEC-Q101 SMBJ40CA-Q Bourns 1: 0,654 € 14 042In Stock	Mfr. Part No. SMBJ40CA-Q Mouser Part No 652-SMBJ40CA-Q	Bourns	ESD Protection Diodes / TVS Diodes 40volts 600W 5% Bi-Dir. AEC-Q101 Learn More about Bourns smxj q aec q101 tvs diodes	Datasheet	14 042In Stock	Cut Tape 0,654 € 0,298 € 0,262 € 0,20 € Reel 0,152 € View 0,133 € 0,123 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 43volts 5uA 8.6 Amps Bi-Dir SMBJ43CA Bourns 1: 0,516 € 2 564In Stock 24 000Expected 12/04/2027	Mfr. Part No. SMBJ43CA Mouser Part No 652-SMBJ43CA	Bourns	ESD Protection Diodes / TVS Diodes 43volts 5uA 8.6 Amps Bi-Dir Learn More about Bourns smxj	Datasheet	2 564In Stock 24 000Expected 12/04/2027	Cut Tape 0,516 € 0,23 € 0,202 € 0,152 € Reel 0,108 € View 0,138 € 0,106 € 0,094 € 0,091 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 48volts 5uA 7.7 Amps Bi-Dir SMBJ48CA Bourns 1: 0,542 € 14 922In Stock	Mfr. Part No. SMBJ48CA Mouser Part No 652-SMBJ48CA	Bourns	ESD Protection Diodes / TVS Diodes 48volts 5uA 7.7 Amps Bi-Dir Learn More about Bourns smxj	Datasheet	14 922In Stock	Cut Tape 0,542 € 0,244 € 0,214 € 0,162 € Reel 0,114 € View 0,148 € 0,112 € 0,098 € 0,097 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 5volts 800uA 65.2 Amps Uni-Dir SMBJ5.0A Bourns 1: 0,447 € 19 308In Stock	Mfr. Part No. SMBJ5.0A Mouser Part No 652-SMBJ5.0A	Bourns	ESD Protection Diodes / TVS Diodes 5volts 800uA 65.2 Amps Uni-Dir Learn More about Bourns smxj	Datasheet	19 308In Stock	Cut Tape 0,447 € 0,203 € 0,176 € 0,133 € Reel 0,089 € View 0,12 € 0,086 € 0,077 € 0,072 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000

Gas Discharge Tube for RS-485 Ports

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Gas Discharge Tube for RS-485 Ports

Types of Circuit Protection