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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (SGD) Filter the results in the table by unit price based on your quantity.	Qty.
Board Mount Surge Protectors 100mA 850Vimp P850-G120-WH Bourns 1: $3.24 22,024In Stock	Mfr. Part No. P850-G120-WH Mouser Part No 652-P850-G120-WH	Bourns	Board Mount Surge Protectors 100mA 850Vimp Learn More about Bourns Bourns_TBU	Datasheet	22,024In Stock	Cut Tape $3.24 $2.82 $1.94 $1.58 $1.48 Reel $1.22 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 22volts 5uA 84.4 Amps Bi-Dir SMLJ22CA Bourns 1: $2.64 33,738In Stock	Mfr. Part No. SMLJ22CA Mouser Part No 652-SMLJ22CA	Bourns	ESD Protection Diodes / TVS Diodes 22volts 5uA 84.4 Amps Bi-Dir Learn More about Bourns _smlj	Datasheet	33,738In Stock	Cut Tape $2.64 $1.60 $0.982 $0.868 Reel $0.616 View $0.715 $0.673 $0.609 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 58V 5KW 5% UNI DO-214AB (SMC) 5.0SMDJ58A Bourns 1: $3.52 22,345In Stock	Mfr. Part No. 5.0SMDJ58A Mouser Part No 652-5.0SMDJ58A	Bourns	ESD Protection Diodes / TVS Diodes 58V 5KW 5% UNI DO-214AB (SMC) Learn More about Bourns 50smdj tvs diodes	Datasheet	22,345In Stock	Cut Tape $3.52 $1.75 $1.55 $1.19 $1.16 Reel $1.07 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Varistors CHIP GUARD 5VOLT CG0603MLU-05E Bourns 1: $0.435 57,980In Stock	Mfr. Part No. CG0603MLU-05E Mouser Part No 652-CG0603MLU-05E	Bourns	Varistors CHIP GUARD 5VOLT Learn More about Bourns gdt	Datasheet	57,980In Stock	Cut Tape $0.435 $0.262 $0.192 $0.184 Reel $0.173 View $0.178 $0.174 $0.169 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 430V, 580V, 10kA High Current TVS Diode PTVS10-430C-TH Bourns 1: $154.36 17In Stock 60Expected 9/10/2026	Mfr. Part No. PTVS10-430C-TH Mouser Part No 652-PTVS10-430C-TH	Bourns	ESD Protection Diodes / TVS Diodes 430V, 580V, 10kA High Current TVS Diode Learn More about Bourns PTVS	Datasheet	17In Stock 60Expected 9/10/2026	$154.36	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 170V 1500W UniDir 1.5SMC170A Bourns 1: $1.37 10,924In Stock	Mfr. Part No. 1.5SMC170A Mouser Part No 652-1.5SMC170A	Bourns	ESD Protection Diodes / TVS Diodes 170V 1500W UniDir Learn More about Bourns 1 5smc series	Datasheet	10,924In Stock	Cut Tape $1.37 $0.855 $0.56 $0.432 Reel $0.339 View $0.398 $0.311 $0.28 $0.279 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 51V 1500W BiDir 1.5SMC51CA Bourns 1: $1.46 9,002In Stock	Mfr. Part No. 1.5SMC51CA Mouser Part No 652-1.5SMC51CA	Bourns	ESD Protection Diodes / TVS Diodes 51V 1500W BiDir Learn More about Bourns 1 5smc series	Datasheet	9,002In Stock	Cut Tape $1.46 $0.684 $0.593 $0.457 Reel $0.32 View $0.434 $0.316 $0.313 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 11V 5kW UNIDIR SMC 5.0SMDJ11A Bourns 1: $3.18 10,653In Stock	Mfr. Part No. 5.0SMDJ11A Mouser Part No 652-5.0SMDJ11A	Bourns	ESD Protection Diodes / TVS Diodes 11V 5kW UNIDIR SMC Learn More about Bourns smxj	Datasheet	10,653In Stock	Cut Tape $3.18 $1.67 $1.40 $1.18 Reel $0.938 View $1.02 $0.929 $0.887 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 14V 5kW 5% Uni-Dir. AEC-Q101 5.0SMDJ14A-Q Bourns 1: $2.54 3,989In Stock	Mfr. Part No. 5.0SMDJ14A-Q Mouser Part No 652-5.0SMDJ14A-Q	Bourns	ESD Protection Diodes / TVS Diodes 14V 5kW 5% Uni-Dir. AEC-Q101 Learn More about Bourns 50smdj q	Datasheet	3,989In Stock	Cut Tape $2.54 $1.93 $1.69 $1.40 Reel $1.14 View $1.20 $1.13 $1.06 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 36V 5kW 5% Uni-Dir. AEC-Q101 5.0SMDJ36A-Q Bourns 1: $3.37 10,524In Stock	Mfr. Part No. 5.0SMDJ36A-Q Mouser Part No 652-5.0SMDJ36A-Q	Bourns	ESD Protection Diodes / TVS Diodes 36V 5kW 5% Uni-Dir. AEC-Q101 Learn More about Bourns 50smdj q	Datasheet	10,524In Stock	Cut Tape $3.37 $2.05 $1.80 $1.47 $1.40 Reel $1.21 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 78V 5KW 5% UNI DO-214AB (SMC) 5.0SMDJ78A Bourns 1: $3.37 6,290In Stock	Mfr. Part No. 5.0SMDJ78A Mouser Part No 652-5.0SMDJ78A	Bourns	ESD Protection Diodes / TVS Diodes 78V 5KW 5% UNI DO-214AB (SMC) Learn More about Bourns 50smdj tvs diodes	Datasheet	6,290In Stock	Cut Tape $3.37 $1.75 $1.48 $1.25 Reel $1.00 View $1.08 $0.983 $0.934 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 5volts 6 data lines CDDFN10-0506N Bourns 1: $1.66 10,700In Stock	Mfr. Part No. CDDFN10-0506N Mouser Part No 652-CDDFN10-0506N	Bourns	ESD Protection Diodes / TVS Diodes 5volts 6 data lines Learn More about Bourns cddfn10 diode array	Datasheet	10,700In Stock	Cut Tape $1.66 $1.23 $1.04 $0.762 Reel $0.626 View $0.711 $0.624 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes TVS Diode Array 5VOLT CDNBS16-T05 Bourns 1: $6.17 4,446In Stock	Mfr. Part No. CDNBS16-T05 Mouser Part No 652-CDNBS16-T05	Bourns	ESD Protection Diodes / TVS Diodes TVS Diode Array 5VOLT Learn More about Bourns gdt	Datasheet	4,446In Stock	Cut Tape $6.17 $3.43 $3.10 $2.60 $2.57 Reel $2.22 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 120V 600W UniDir P6SMB120A Bourns 1: $0.748 26,078In Stock	Mfr. Part No. P6SMB120A Mouser Part No 652-P6SMB120A	Bourns	ESD Protection Diodes / TVS Diodes 120V 600W UniDir Learn More about Bourns p6smb series diodes	Datasheet	26,078In Stock	Cut Tape $0.748 $0.333 $0.291 $0.219 Reel $0.14 View $0.16 $0.137 $0.124 $0.114 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 350volts 5uA 0.9Amps Bi-Dir SMAJ350CA Bourns 1: $1.39 13,316In Stock	Mfr. Part No. SMAJ350CA Mouser Part No 652-SMAJ350CA	Bourns	ESD Protection Diodes / TVS Diodes 350volts 5uA 0.9Amps Bi-Dir Learn More about Bourns smxj	Datasheet	13,316In Stock	Cut Tape $1.39 $0.656 $0.563 $0.434 Reel $0.298 View $0.396 $0.333 $0.282 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 36volts 400W 5% Bi-Dir. AEC-Q101 SMAJ36CA-Q Bourns 1: $0.816 44,620In Stock	Mfr. Part No. SMAJ36CA-Q Mouser Part No 652-SMAJ36CA-Q	Bourns	ESD Protection Diodes / TVS Diodes 36volts 400W 5% Bi-Dir. AEC-Q101 Learn More about Bourns smxj q aec q101 tvs diodes	Datasheet	44,620In Stock	Cut Tape $0.816 $0.39 $0.318 $0.26 Reel $0.166 View $0.215 $0.184 $0.144 $0.143 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 20volts 5uA 18.6 Amps Uni-Dir SMBJ20A Bourns 1: $0.49 25,425In 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	25,425In Stock	Cut Tape $0.49 $0.241 $0.208 $0.167 Reel $0.129 View $0.162 $0.128 $0.12 $0.116 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 250volts 1uA 1 Amps Uni-Dir SMBJ250A Bourns 1: $1.18 20,965In Stock	Mfr. Part No. SMBJ250A Mouser Part No 652-SMBJ250A	Bourns	ESD Protection Diodes / TVS Diodes 250volts 1uA 1 Amps Uni-Dir Learn More about Bourns smxj	Datasheet	20,965In Stock	Cut Tape $1.18 $0.577 $0.473 $0.363 Reel $0.28 View $0.328 $0.257 $0.243 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 10volts 5uA 88.2 Amps Bi-Dir SMCJ10CA Bourns 1: $1.48 22,320In Stock	Mfr. Part No. SMCJ10CA Mouser Part No 652-SMCJ10CA	Bourns	ESD Protection Diodes / TVS Diodes 10volts 5uA 88.2 Amps Bi-Dir Learn More about Bourns smxj	Datasheet	22,320In Stock	Cut Tape $1.48 $0.642 $0.494 $0.39 Reel $0.33 View $0.369 $0.311 $0.295 $0.287 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 160volts 5uA 5.8 Amps Bi-Dir SMCJ160CA Bourns 1: $1.69 8,485In Stock	Mfr. Part No. SMCJ160CA Mouser Part No 652-SMCJ160CA	Bourns	ESD Protection Diodes / TVS Diodes 160volts 5uA 5.8 Amps Bi-Dir Learn More about Bourns smxj	Datasheet	8,485In Stock	Cut Tape $1.69 $0.805 $0.691 $0.537 Reel $0.384 View $0.49 $0.378 $0.375 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 180volts 1uA 5.1 Amps Bi-Dir SMCJ180CA Bourns 1: $1.89 9,890In Stock	Mfr. Part No. SMCJ180CA Mouser Part No 652-SMCJ180CA	Bourns	ESD Protection Diodes / TVS Diodes 180volts 1uA 5.1 Amps Bi-Dir Learn More about Bourns smxj	Datasheet	9,890In Stock	Cut Tape $1.89 $0.956 $0.79 $0.619 Reel $0.43 View $0.526 $0.419 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 220volts 1uA 1 Amps Uni-Dir SMCJ220A Bourns 1: $1.51 8,278In Stock	Mfr. Part No. SMCJ220A Mouser Part No 652-SMCJ220A	Bourns	ESD Protection Diodes / TVS Diodes 220volts 1uA 1 Amps Uni-Dir Learn More about Bourns smxj	Datasheet	8,278In Stock	Cut Tape $1.51 $0.902 $0.736 $0.582 Reel $0.439 View $0.52 $0.418 $0.408 $0.404 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 36volts 1.5kW 5% Uni-Dir. AEC-Q101 SMCJ36A-Q Bourns 1: $1.63 6,098In Stock	Mfr. Part No. SMCJ36A-Q Mouser Part No 652-SMCJ36A-Q	Bourns	ESD Protection Diodes / TVS Diodes 36volts 1.5kW 5% Uni-Dir. AEC-Q101 Learn More about Bourns smxj q aec q101 tvs diodes	Datasheet	6,098In Stock	Cut Tape $1.63 $0.759 $0.661 $0.511 Reel $0.404 View $0.49 $0.388 $0.358 $0.356 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 440volts 1uA 2.1 Amps Bi-Dir SMCJ440CA Bourns 1: $2.52 4,189In 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 about Bourns smxj	Datasheet	4,189In Stock	Cut Tape $2.52 $1.43 $1.06 $0.777 Reel $0.556 View $0.635 $0.592 $0.53 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 100volts 5uA 18.6 Amps Uni-Dir SMLJ100A Bourns 1: $2.48 8,125In Stock	Mfr. Part No. SMLJ100A Mouser Part No 652-SMLJ100A	Bourns	ESD Protection Diodes / TVS Diodes 100volts 5uA 18.6 Amps Uni-Dir Learn More about Bourns _smlj	Datasheet	8,125In Stock	Cut Tape $2.48 $1.18 $0.981 $0.805 Reel $0.645 View $0.802 $0.578 MouseReel Available	Min.: 1 Mult.: 1 : 3,000

Gas Discharge Tube for RS-485 Ports

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