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SM30T39AY SM30T39AY is a 3kW unidirectional TVS diode from STMicroelectronics, with 33V reverse standoff voltage and 53.3V clamping voltage in DO-214AB SMC package.
Mfr Part #:

SM30T39AY

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
SM30T39AY is a 3kW unidirectional TVS diode from STMicroelectronics, with 33V reverse standoff voltage and 53.3V clamping voltage in DO-214AB SMC package.
✓ Total Stock: 7,500 pcs
$ Price Range: $0.43 - $1.38

SM30T39AY Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Fe Components ✓
Non-Authorised Inventory information
7,500 pcs
On Request
7500 pcs On Request 1 On Request On Request On Request On Request On Request
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SM30T39AY Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Applications
Automotive Grade
Current
Mounting Type
Operating Temperature
Power
Power Line Protection
Supplier Device Package
Tape & Reel
Type
Unidirectional Channels
Voltage
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SM30T39AY Description

Short technical summary and product information.

The SM30T39AY is a unidirectional Transient Voltage Suppression (TVS) diode designed to protect sensitive electronics from overvoltage transients. It features a reverse standoff voltage of 33V and a clamping voltage of 53.3V at peak pulse current.

 

This diode is rated for 3kW peak pulse power (10/1000µs waveform) and can handle a peak pulse current of 56.3A. It is not intended for power line protection. The device operates over a junction temperature range of -55°C to 175°C.

 

The SM30T39AY is offered in a surface mount DO-214AB (SMC) package, suitable for automated assembly. It is designated for automotive applications per the manufacturer.

SM30T39AY Quick Information

Product Type: TVS Diode
Series: SM30T39AY
Canonical Name: STMicroelectronics SM30T39AY TVS Diode, 33V Reverse Standoff, 53.3V Clamping, DO-214AB (SMC)
Subcategory: Unidirectional TVS

SM30T39AY Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

SM30T39AY Estimated Pricing

Qty Low High
1+ $1.38 $1.38
10+ $1.07 $1.07
100+ $0.77 $0.77
500+ $0.62 $0.62
1,000+ $0.55 $0.55
2,500+ $0.50 $0.50
5,000+ $0.47 $0.47
10,000+ $0.43 $0.43

Estimated market price range - modelled values for guidance only, not live distributor offers.

SM30T39AY Features

  • 3kW peak pulse power for transient protection.
  • Unidirectional TVS with 33V reverse standoff.
  • Surface mount DO-214AB SMC package.
  • Operating temperature range -55°C to 175°C.
  • Rated for automotive applications.

SM30T39AY Applications

  • Protect automotive electronic control units.
  • Suppress transients in power supply lines.
  • Used in industrial equipment protection circuits.

SM30T39AY FAQs

5 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of SM30T39AY?

33V.

What is the clamping voltage of SM30T39AY?

53.3V.

What is the peak pulse current rating?

56.3A.

What is the peak pulse power rating?

3000W (3kW).

What package type is this TVS diode available in?

DO-214AB, SMC.

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