STMicroelectronics SM4T39CAY 1-Element Bi-Directional TVS Diode, 400 W, 2-Pin DO-214

RS Stock No.:: 795-8432
Mfr. Part No.:: SM4T39CAY
Brand:: STMicroelectronics

STMicroelectronics SM4T39CAY 1-Element Bi-Directional TVS Diode, 400 W, 2-Pin DO-214

Bulk discount available

Subtotal (1 pack of 10 units)*

£4.88

(exc. VAT)

£5.86

(inc. VAT)

FREE delivery for orders over £50.00

Temporarily out of stock

Shipping from 23 July 2026

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit	Per Pack*
10 - 40	£0.488	£4.88
50 - 90	£0.464	£4.64
100 - 240	£0.418	£4.18
250 - 490	£0.375	£3.75
500 +	£0.357	£3.57

*price indicative

RS Stock No.:: 795-8432
Mfr. Part No.:: SM4T39CAY
Brand:: STMicroelectronics

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	STMicroelectronics
	Diode Configuration	Single
	Direction Type	Bi-Directional
	Product Type	TVS Diode
	Minimum Breakdown Voltage Vbr	36.7V
	Mount Type	Surface
	Package Type	DO-214
	Maximum Reverse Stand-off Voltage Vwm	33V
	Pin Count	2
	Peak Pulse Power Dissipation Pppm	400W
	Minimum Operating Temperature	-55°C
	Test Current It	1mA
	Clamping Voltage VC	69.7V
	Maximum Peak Pulse Current Ippm	33A
	Maximum Operating Temperature	150°C
	Number of Elements per Chip	1
	Series	SM4TxxCAY
	Height	2.45mm
	Width	2.9 mm
	Length	4.6mm
	Standards/Approvals	No
	Maximum Reverse Leakage Current	1μA
	Automotive Standard	AEC-Q101

	Select all
	Brand STMicroelectronics
	Diode Configuration Single
	Direction Type Bi-Directional
	Product Type TVS Diode
	Minimum Breakdown Voltage Vbr 36.7V
	Mount Type Surface
	Package Type DO-214
	Maximum Reverse Stand-off Voltage Vwm 33V
	Pin Count 2
	Peak Pulse Power Dissipation Pppm 400W
	Minimum Operating Temperature -55°C
	Test Current It 1mA
	Clamping Voltage VC 69.7V
	Maximum Peak Pulse Current Ippm 33A
	Maximum Operating Temperature 150°C
	Number of Elements per Chip 1
	Series SM4TxxCAY
	Height 2.45mm
	Width 2.9 mm
	Length 4.6mm
	Standards/Approvals No
	Maximum Reverse Leakage Current 1μA
	Automotive Standard AEC-Q101

Automotive Transil™ TVS SMT 400W

The SM4TxxxAY Transil™ Transient Voltage Suppressor range has been designed to protect sensitive automotive circuits against surges defined in ISO 7637-2 and against electrostatic discharges according to ISO 10605. Qualified to AEC-Q101.

Package: DO-214AC (SMA)

RS Product Codes

795-7215 SM4T6V7AY Automotive 400W Unidirectional TVS, 6.7V

795-7287 SM4T6V7CAY Automotive 400W Bidirectional TVS, 6.7V

795-7237 SM4T10AY Automotive 400W Unidirectional TVS, 10V

795-7341 SM4T10CAY Automotive 400W Bidirectional TVS, 10V

795-7240 SM4T14CAY Automotive 400W Bidirectional TVS, 14V

795-7350 SM4T15AY Automotive 400W Unidirectional TVS, 15V

795-7354 SM4T15CAY Automotive 400W Bidirectional TVS, 15V

795-7313 SM4T18AY Automotive 400W Unidirectional TVS, 18V

795-7243 SM4T21CAY Automotive 400W Bidirectional TVS, 21V

795-7316 SM4T26AY Automotive 400W Unidirectional TVS, 26V

795-7338 SM4T28AY Automotive 400W Unidirectional TVS, 28V

795-7212 SM4T28CAY Automotive 400W Bidirectional TVS, 28V

795-8565 SM4T33AY Automotive 400W Unidirectional TVS, 33V

795-7357 SM4T33CAY Automotive 400W Bidirectional TVS, 33V

795-9170 SM4T35CAY Automotive 400W Bidirectional TVS, 35V

795-7326 SM4T39AY Automotive 400W Unidirectional TVS, 39V

795-8432 SM4T39CAY Automotive 400W Bidirectional TVS, 39V

795-7366 SM4T47CAY Automotive 400W Bidirectional TVS, 47V

795-7253 SM4T56AY Automotive 400W Unidirectional TVS, 56V

795-7304 SM4T56CAY Automotive 400W Bidirectional TVS, 56V

795-7293 SM4T68AY Automotive 400W Unidirectional TVS, 68V

795-7322 SM4T68CAY Automotive 400W Bidirectional TVS, 68V

795-7269 SM4T82CAY Automotive 400W Bidirectional TVS, 82V

Transient Voltage Suppressors, STMicroelectronics

Approvals

AEC-Q101

Standards

ISO 7637-2, ISO 10605