SMM4F12A-TR SMM4F12A-TR is a 400W unidirectional TVS diode from STMicroelectronics with 12V reverse standoff voltage, 25.3V clamping, and 91A peak pulse current.
Mfr Part #:

SMM4F12A-TR

Available from 2 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
SMM4F12A-TR is a 400W unidirectional TVS diode from STMicroelectronics with 12V reverse standoff voltage, 25.3V clamping, and 91A peak pulse current.
Total Stock: 12,034 pcs
$ Price Range: $0.18 - $0.98

SMM4F12A-TR Available from 2 distributors

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
12,000 pcs
12000 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
34 pcs
34 pcs On Request 1 On Request On Request On Request On Request On Request

SMM4F12A-TR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Mounting Type
Operating Temperature
Power
Power Line Protection
Reverse Standoff Voltage
Supplier Device Package
Type
Unidirectional Channels
Voltage

SMM4F12A-TR Description

Short technical summary and product information.

The SMM4F12A-TR is a unidirectional TVS (Transient Voltage Suppression) diode from STMicroelectronics, designed to protect sensitive electronics from voltage transients. It features a reverse standoff voltage of 12V, a clamping voltage of 25.3V, and can handle peak pulse currents up to 91A (8/20µs waveform).

 

With a peak pulse power rating of 400W, this device is suitable for general purpose transient protection in a variety of applications. It is mounted using surface mount technology and comes in a DO-222AA package, which is also designated as DO222-AA.

 

The operating junction temperature range is -55°C to 175°C, allowing use in harsh environments. The unidirectional design provides effective clamping for positive voltage spikes, making it ideal for protecting 12V power lines and signal lines.

SMM4F12A-TR Quick Information

Product Type: TVS Diode
Canonical Name: SMM4F12A-TR TVS Diode, 12V Reverse Standoff, 400W, DO-222AA
Subcategory: Unidirectional

SMM4F12A-TR Compliance

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

SMM4F12A-TR Estimated Pricing

Qty Low High
1+ $0.98 $0.98
10+ $0.61 $0.61
100+ $0.40 $0.40
500+ $0.31 $0.31
1,000+ $0.28 $0.28
2,000+ $0.25 $0.25
12,000+ $0.20 $0.20
24,000+ $0.19 $0.19
36,000+ $0.18 $0.18

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

SMM4F12A-TR Features

  • 400W peak pulse power handling.
  • 12V reverse standoff voltage.
  • 25.3V clamping voltage.
  • Surface mount DO-222AA package.
  • Unidirectional single channel.

SMM4F12A-TR Applications

  • General purpose transient voltage suppression.
  • Protection for 12V power lines.
  • Used in industrial and consumer electronics.
  • Suitable for portable device protection.

SMM4F12A-TR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of SMM4F12A-TR?

12V.

What is the clamping voltage of SMM4F12A-TR?

25.3V.

What is the peak pulse current rating of SMM4F12A-TR?

91A at 8/20µs.

What is the package type of SMM4F12A-TR?

DO-222AA (surface mount).

What is the peak pulse power rating of SMM4F12A-TR?

400W.

What is the operating temperature range of SMM4F12A-TR?

-55°C to 175°C.

Is the SMM4F12A-TR unidirectional or bidirectional?

Unidirectional with 1 channel.

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