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.
ESD Protection Diodes / TVS Diodes 3kA 430V PTVS Diode Bidirectional PTVS3-430C-TH Bourns 1: $78.10 1,193In Stock	Mfr. Part No. PTVS3-430C-TH Mouser Part No 652-PTVS3-430C-TH	Bourns	ESD Protection Diodes / TVS Diodes 3kA 430V PTVS Diode Bidirectional Learn More about Bourns PTVS	Datasheet	1,193In Stock	$78.10 $60.96 $57.75 $54.86	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 28V 5KW 5% BI DO-214AB (SMC) 5.0SMDJ28CA Bourns 1: $3.58 21,121In Stock	Mfr. Part No. 5.0SMDJ28CA Mouser Part No 652-5.0SMDJ28CA	Bourns	ESD Protection Diodes / TVS Diodes 28V 5KW 5% BI DO-214AB (SMC) Learn More about Bourns 50smdj tvs diodes	Datasheet	21,121In Stock	Cut Tape $3.58 $2.30 $1.75 $1.30 Reel $0.934 View $1.11 $1.10 $0.911 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 22volts 5uA 84.4 Amps Bi-Dir SMLJ22CA Bourns 1: $2.52 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 $2.52 $1.60 $0.861 $0.783 View Reel $0.578 $0.664 $0.649 $0.578 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Board Mount Surge Protectors 100mA 850Vimp P850-G120-WH Bourns 1: $3.24 23,320In 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	23,320In Stock	Cut Tape $3.24 $2.82 $1.94 $1.58 View Reel $1.22 $1.48 $1.22 Quote MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Varistors Chip Guard 0402 12 VOLTS CG0402MLC-12LGA Bourns 1: $0.34 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 $0.34 $0.203 $0.159 $0.151 Reel $0.125 View $0.144 $0.137 $0.132 $0.122 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
Varistors CHIP GUARD CG0402MLC-24LGA Bourns 1: $0.83 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 $0.83 $0.532 $0.33 $0.227 Reel $0.135 View $0.197 $0.175 $0.156 $0.133 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes Steering Diode 4 Line Array CDSOT236-0502 Bourns 1: $1.39 20,791In Stock 12,000Expected 9/11/2026	Mfr. Part No. CDSOT236-0502 Mouser Part No 652-CDSOT236-0502	Bourns	ESD Protection Diodes / TVS Diodes Steering Diode 4 Line Array Learn More about Bourns gdt	Datasheet	20,791In Stock 12,000Expected 9/11/2026	Cut Tape $1.39 $0.86 $0.562 $0.423 Reel $0.326 View $0.385 $0.291 $0.267 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 15V 5kW 5% Bi-Dir. AEC-Q101 5.0SMDJ15CA-Q Bourns 1: $4.31 6,000In Stock 30,000On Order	Mfr. Part No. 5.0SMDJ15CA-Q Mouser Part No 652-5.0SMDJ15CA-Q	Bourns	ESD Protection Diodes / TVS Diodes 15V 5kW 5% Bi-Dir. AEC-Q101 Learn More about Bourns 50smdj q	Datasheet	6,000In Stock 30,000On Order On Order Ship Dates Mfr. No: 5.0SMDJ15CA-Q Stock: 6,000 Can Dispatch Immediately On Order: 6,000 Expected 1/2/2027 15,000 Expected 8/2/2027 9,000 Expected 8/3/2027 Factory Lead Time: 18 Weeks	Cut Tape $4.31 $2.79 $2.27 $1.92 Reel $1.20 View $1.50 $1.18 $1.17 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 120V 1500W BiDir 1.5SMC120CA Bourns 1: $0.979 10,400In Stock	Mfr. Part No. 1.5SMC120CA Mouser Part No 652-1.5SMC120CA	Bourns	ESD Protection Diodes / TVS Diodes 120V 1500W BiDir Learn More about Bourns 1 5smc series	Datasheet	10,400In Stock	Cut Tape $0.979 $0.823 $0.672 $0.494 Reel $0.412 View $0.45 $0.364 $0.292 $0.287 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 12V 5kW 5% Uni-Dir. AEC-Q101 5.0SMDJ12A-Q Bourns 1: $3.92 2,938In Stock	Mfr. Part No. 5.0SMDJ12A-Q Mouser Part No 652-5.0SMDJ12A-Q	Bourns	ESD Protection Diodes / TVS Diodes 12V 5kW 5% Uni-Dir. AEC-Q101 Learn More about Bourns 50smdj q	Datasheet	2,938In Stock	Cut Tape $3.92 $2.54 $1.93 $1.74 Reel $1.15 View $1.40 $1.25 $1.06 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 17V 5KW 5% BI DO-214AB (SMC) 5.0SMDJ17CA Bourns 1: $3.58 5,951In Stock	Mfr. Part No. 5.0SMDJ17CA Mouser Part No 652-5.0SMDJ17CA	Bourns	ESD Protection Diodes / TVS Diodes 17V 5KW 5% BI DO-214AB (SMC) Learn More about Bourns 50smdj tvs diodes	Datasheet	5,951In Stock	Cut Tape $3.58 $2.30 $1.75 $1.58 Reel $1.02 View $1.25 $1.14 $1.01 $0.934 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 18V 5kW 5% Uni-Dir. AEC-Q101 5.0SMDJ18A-Q Bourns 1: $3.92 7,918In Stock	Mfr. Part No. 5.0SMDJ18A-Q Mouser Part No 652-5.0SMDJ18A-Q	Bourns	ESD Protection Diodes / TVS Diodes 18V 5kW 5% Uni-Dir. AEC-Q101 Learn More about Bourns 50smdj q	Datasheet	7,918In Stock	Cut Tape $3.92 $2.54 $1.93 $1.74 Reel $1.10 View $1.40 $1.25 $1.09 $1.06 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes TVS Diode Array 5VOLT CDSOT236-T05 Bourns 1: $1.37 14,623In Stock	Mfr. Part No. CDSOT236-T05 Mouser Part No 652-CDSOT236-T05	Bourns	ESD Protection Diodes / TVS Diodes TVS Diode Array 5VOLT Learn More about Bourns gdt	Datasheet	14,623In Stock	Cut Tape $1.37 $0.721 $0.517 $0.432 Reel $0.371 View $0.423 $0.367 $0.328 $0.314 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 540V 600W UniDir P6SMB540A Bourns 1: $1.28 11,402In Stock	Mfr. Part No. P6SMB540A Mouser Part No 652-P6SMB540A	Bourns	ESD Protection Diodes / TVS Diodes 540V 600W UniDir Learn More about Bourns p6smb series diodes	Datasheet	11,402In Stock	Cut Tape $1.28 $0.583 $0.515 $0.396 Reel $0.306 View $0.392 $0.268 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 28volts 600W 5% Bi-Dir. AEC-Q101 SMBJ28CA-Q Bourns 1: $1.01 20,665In Stock	Mfr. Part No. SMBJ28CA-Q Mouser Part No 652-SMBJ28CA-Q	Bourns	ESD Protection Diodes / TVS Diodes 28volts 600W 5% Bi-Dir. AEC-Q101 Learn More about Bourns smxj q aec q101 tvs diodes	Datasheet	20,665In Stock	Cut Tape $1.01 $0.447 $0.40 $0.316 Reel $0.241 View $0.231 $0.201 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 36volts 600W 5% Uni-Dir. AEC-Q101 SMBJ36A-Q Bourns 1: $1.14 12,576In Stock	Mfr. Part No. SMBJ36A-Q Mouser Part No 652-SMBJ36A-Q	Bourns	ESD Protection Diodes / TVS Diodes 36volts 600W 5% Uni-Dir. AEC-Q101 Learn More about Bourns smxj q aec q101 tvs diodes	Datasheet	12,576In Stock	Cut Tape $1.14 $0.517 $0.456 $0.345 Reel $0.256 View $0.298 $0.252 $0.215 $0.177 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 48volts 5uA 7.7 Amps Uni-Dir SMBJ48A-H Bourns 1: $1.36 11,383In Stock	Mfr. Part No. SMBJ48A-H Mouser Part No 652-SMBJ48A-H	Bourns	ESD Protection Diodes / TVS Diodes 48volts 5uA 7.7 Amps Uni-Dir Learn More about Bourns smxj	Datasheet	11,383In Stock	Cut Tape $1.36 $0.85 $0.555 $0.418 Reel $0.348 View $0.381 $0.339 $0.288 $0.264 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
ESD Protection Diodes / TVS Diodes 60volts 5uA 6.2 Amps Bi-Dir SMBJ60CA Bourns 1: $0.816 16,331In Stock	Mfr. Part No. SMBJ60CA Mouser Part No 652-SMBJ60CA	Bourns	ESD Protection Diodes / TVS Diodes 60volts 5uA 6.2 Amps Bi-Dir Learn More about Bourns smxj	Datasheet	16,331In Stock	Cut Tape $0.816 $0.364 $0.306 $0.241 Reel $0.15 View $0.237 $0.148 $0.12 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 8volts 50uA 110.3 Amps Bi-Dir SMCJ8.0CA Bourns 1: $1.58 13,795In Stock	Mfr. Part No. SMCJ8.0CA Mouser Part No 652-SMCJ8.0CA	Bourns	ESD Protection Diodes / TVS Diodes 8volts 50uA 110.3 Amps Bi-Dir Learn More about Bourns smxj	Datasheet	13,795In Stock	Cut Tape $1.58 $0.726 $0.642 $0.494 Reel $0.386 View $0.45 $0.382 $0.32 $0.287 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 130volts 5uA 14.4 Amps Uni-Dir SMLJ130A Bourns 1: $2.41 3,748In Stock	Mfr. Part No. SMLJ130A Mouser Part No 652-SMLJ130A	Bourns	ESD Protection Diodes / TVS Diodes 130volts 5uA 14.4 Amps Uni-Dir Learn More about Bourns _smlj	Datasheet	3,748In Stock	Cut Tape $2.41 $1.54 $1.15 $1.02 Reel $0.645 View $0.805 $0.718 $0.627 $0.578 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 16volts 5uA 115.4 Amps Bi-Dir SMLJ16CA Bourns 1: $2.52 11,649In Stock	Mfr. Part No. SMLJ16CA Mouser Part No 652-SMLJ16CA	Bourns	ESD Protection Diodes / TVS Diodes 16volts 5uA 115.4 Amps Bi-Dir Learn More about Bourns _smlj	Datasheet	11,649In Stock	Cut Tape $2.52 $1.60 $1.20 $1.07 Reel $0.68 View $0.846 $0.743 $0.653 $0.616 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 170volts 5uA 11 Amps Uni-Dir SMLJ170A Bourns 1: $2.41 7,801In Stock	Mfr. Part No. SMLJ170A Mouser Part No 652-SMLJ170A	Bourns	ESD Protection Diodes / TVS Diodes 170volts 5uA 11 Amps Uni-Dir Learn More about Bourns _smlj	Datasheet	7,801In Stock	Cut Tape $2.41 $1.54 $1.15 $1.02 Reel $0.609 View $0.703 $0.664 $0.579 $0.574 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Board Mount Surge Protectors Bi-directional TBU TBU-CA050-100-WH Bourns 1: $2.43 14,667In Stock	Mfr. Part No. TBU-CA050-100-WH Mouser Part No 652-TBU-CA050-100-WH	Bourns	Board Mount Surge Protectors Bi-directional TBU Learn More about Bourns tbu ca high speed protectors	Datasheet	14,667In Stock	Cut Tape $2.43 $1.63 $1.36 $1.28 Reel $1.19 View $1.27 $1.18 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 10V 1500W UniDir 1.5SMC10A Bourns 1: $1.26 12,037In Stock	Mfr. Part No. 1.5SMC10A Mouser Part No 652-1.5SMC10A	Bourns	ESD Protection Diodes / TVS Diodes 10V 1500W UniDir Learn More about Bourns 1 5smc series	Datasheet	12,037In Stock	Cut Tape $1.26 $0.581 $0.513 $0.393 Reel $0.305 View $0.388 $0.296 $0.252 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 250V 1500W BiDir 1.5SMC250CA Bourns 1: $2.04 13,431In Stock	Mfr. Part No. 1.5SMC250CA Mouser Part No 652-1.5SMC250CA	Bourns	ESD Protection Diodes / TVS Diodes 250V 1500W BiDir Learn More about Bourns 1 5smc series	Datasheet	13,431In Stock	Cut Tape $2.04 $1.28 $0.957 $0.699 Reel $0.484 View $0.573 $0.534 $0.466 $0.458 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