SMAJ188A-TR Unidirectional TVS diode from STMicroelectronics with 188V reverse standoff voltage and 388V clamping voltage. Provides 400W peak pulse power for surge protection in surface mount DO-214AC package.
Mfr Part #:

SMAJ188A-TR

Available from 2 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
Unidirectional TVS diode from STMicroelectronics with 188V reverse standoff voltage and 388V clamping voltage. Provides 400W peak pulse power for surge protection in surface mount DO-214AC package.
Total Stock: 80,000 pcs
$ Price Range: $0.12 - $0.45

SMAJ188A-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
75,000 pcs
75000 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
5,000 pcs
5000 pcs On Request 1 On Request On Request On Request On Request On Request

SMAJ188A-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
Tape & Reel
Technology
Termination Style
Type
Unidirectional Channels
Voltage

SMAJ188A-TR Description

Short technical summary and product information.

The SMAJ188A-TR is a unidirectional TVS (Transient Voltage Suppressor) diode designed by STMicroelectronics to protect sensitive electronics from voltage transients. It features a reverse standoff voltage of 188V and a clamping voltage of 388V, ensuring that overvoltage spikes are safely diverted.

 

With a peak pulse power rating of 400W (8/20µs waveform) and a peak pulse current of 6A, this TVS diode provides robust protection for general-purpose circuits. The Zener technology enables fast response times, making it suitable for applications requiring reliable overvoltage clamping.

 

The device is housed in a compact DO-214AC (SMA) surface-mount package, allowing for efficient PCB layout and automated assembly. It operates over a junction temperature range of -55°C to 150°C, ensuring performance across harsh environments.

 

Designed for general-purpose applications, the SMAJ188A-TR is commonly used in power supplies, industrial controls, and communication equipment where protection against voltage surges is critical.

SMAJ188A-TR Quick Information

Product Type: TVS Diode
Canonical Name: STMicroelectronics SMAJ188A-TR TVS Diode, Unidirectional, 188V Reverse Standoff, 388V Clamping, DO-214AC
Subcategory: Unidirectional TVS

SMAJ188A-TR Compliance

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

SMAJ188A-TR Estimated Pricing

Qty Low High
1+ $0.45 $0.45
10+ $0.30 $0.30
100+ $0.21 $0.21
500+ $0.18 $0.18
1,000+ $0.16 $0.16
2,500+ $0.15 $0.15
5,000+ $0.13 $0.13
10,000+ $0.12 $0.12
25,000+ $0.12 $0.12

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

SMAJ188A-TR Features

  • 188V reverse standoff voltage protection.
  • 388V clamping voltage for peak surges.
  • 400W peak pulse power rating.
  • Unidirectional Zener diode design.
  • Surface mount DO-214AC (SMA) package.

SMAJ188A-TR Applications

  • Used in general-purpose overvoltage protection.
  • Ideal for power supply transient suppression.
  • Suitable for industrial control circuit safeguarding.
  • Applies to communication equipment surge protection.

SMAJ188A-TR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SMAJ188A-TR?

188V

What is the clamping voltage of the SMAJ188A-TR?

388V

What is the peak pulse current rating of the SMAJ188A-TR?

6A (8/20µs pulse)

What is the peak pulse power rating?

400W

What package type is the SMAJ188A-TR available in?

DO-214AC (SMA)

How many channels does the SMAJ188A-TR have?

1 unidirectional channel

What is the operating temperature range?

-55°C to 150°C (junction)

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