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SMAJ188A SMAJ188A is a surface mount TVS diode from STMicroelectronics, offering 400W peak pulse power dissipation (10/1000μs waveform) and a stand-off voltage range of 5.0V to 188V. It is housed in a DO-214AC (SMA) package.
Mfr Part #:

SMAJ188A

Available from 2 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
SMAJ188A is a surface mount TVS diode from STMicroelectronics, offering 400W peak pulse power dissipation (10/1000μs waveform) and a stand-off voltage range of 5.0V to 188V. It is housed in a DO-214AC (SMA) package.
✓ Total Stock: 9,672 pcs
$ Price Range: $0.47

SMAJ188A Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Braun Electronic Components ✓
Non-Authorised Inventory information
4,836 pcs
On Request
4836 pcs On Request 1 On Request On Request On Request On Request On Request
MW.FEP S.p.A. ✓
Non-Authorised Inventory information
4,836 pcs
On Request
4836 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

SMAJ188A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Halogen Free
SVHC Present
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SMAJ188A Description

Short technical summary and product information.

The SMAJ188A is a transient voltage suppression (TVS) diode designed to protect sensitive electronic circuits from overvoltage transients. It provides a peak pulse power dissipation of 400W under a 10/1000μs waveform (derated to 300W above 78V). The device features a stand-off voltage range from 5.0V to 188V and a corresponding breakdown voltage range from 6.4V to 231V. It can handle a peak forward surge current of 40A (8.3ms half sine-wave, unidirectional only).

 

The operating junction and storage temperature range spans -55°C to +150°C, making it suitable for harsh environments. The SMAJ188A is packaged in a DO-214AC (SMA) surface-mount package, enabling compact PCB layouts. Typical applications include protection of power supplies, data lines, and I/O interfaces against transient voltage spikes.

SMAJ188A Quick Information

Product Type: TVS Diode
Series: SMAJ
Canonical Name: SMAJ188A TVS Diode, 400W, DO-214AC (SMA)
Subcategory: TVS Diodes

SMAJ188A Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: No

SMAJ188A Estimated Pricing

Qty Low High
1+ $0.47 $0.47

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

SMAJ188A Features

  • 400W peak pulse power dissipation.
  • Stand-off voltage range 5.0V to 188V.
  • Surface mount DO-214AC (SMA) package.
  • Operating temperature range -55°C to +150°C.
  • Peak forward surge current 40A.

SMAJ188A Applications

  • Protects against transient overvoltage events.
  • Ideal for DC power rail protection.
  • Used in I/O interface protection.
  • Suitable for surface mount assembly.

SMAJ188A FAQs

6 frequently asked questions generated from this part’s specifications.
What is the stand-off voltage range of the SMAJ188A?

The stand-off voltage range is 5.0V minimum to 188V maximum.

What is the breakdown voltage range of the SMAJ188A?

The breakdown voltage range is 6.4V minimum to 231V maximum, applicable for both unidirectional and bidirectional configurations.

What is the peak forward surge current rating of the SMAJ188A?

The peak forward surge current is 40A for an 8.3ms half sine-wave (unidirectional only).

What is the operating temperature range of the SMAJ188A?

The operating junction and storage temperature range is -55°C to +150°C.

What package is the SMAJ188A available in?

The SMAJ188A is available in a DO-214AC (SMA) surface mount package.

What is the peak pulse power dissipation of the SMAJ188A?

The peak pulse power dissipation is 400W for a 10/1000μs waveform, derated to 300W above 78V.

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