SMA6F188AY SMA6F188AY is a unidirectional TVS diode from STMicroelectronics with a working voltage of 64V and clamping voltage of 134V at 30A peak pulse current. It comes in a surface mount SMAflat package (DO-221AC).
Mfr Part #:

SMA6F188AY

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
SMA6F188AY is a unidirectional TVS diode from STMicroelectronics with a working voltage of 64V and clamping voltage of 134V at 30A peak pulse current. It comes in a surface mount SMAflat package (DO-221AC).
Total Stock: 10,000 pcs
$ Price Range: $0.99

SMA6F188AY Available from 1 distributor

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SMA6F188AY Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Breakdown Voltage
Clamping Voltage
Current
ESD Immunity (@ IEC 61000-4-2, C = 150 pF - R = 330 Ω)
ESD Immunity (@ IEC 61000-4-4 level 4)
ESD Immunity (@ ISO 10605, C = 330 pF, R = 330 Ω)
ISO7637-2 Pulse 1
ISO7637-2 Pulse 2a
ISO7637-2 Pulse 3a
ISO7637-2 Pulse 3b
Leakage Current (Maximum @ at +25 °C)
Leakage Current (Maximum @ at 85 °C)
Mounting Type
Number of Channels
Operating Junction Temperature
Operating Temperature
Peak Pulse Current (Maximum @ 10/1000 µs)
Peak Pulse Power Dissipation (Maximum @ 10/1000 µs)
Peak Pulse Power Dissipation (Maximum @ 8/20 µs)
Power
Power Line Protection
Stand-off Voltage
Storage Temperature
Supplier Device Package
Termination Style
Type
Unidirectional Channels
Voltage
Working Voltage

SMA6F188AY Description

Short technical summary and product information.

The SMA6F188AY is a unidirectional TVS diode from STMicroelectronics designed for overvoltage protection. It features a working voltage of 64V, a breakdown voltage of 71.1V typical, and a clamping voltage of 134V at 30A peak pulse current. The device can handle peak pulse power dissipation of 600W (10/1000µs) and 4kW (8/20µs). It offers excellent ESD immunity up to 30kV contact and air discharge per IEC 61000-4-2 and ISO10605, and meets ISO7637-2 pulse requirements for automotive applications. The operating junction temperature range is -55°C to 175°C. The SMA6F188AY is housed in a SMAflat surface mount package (DO-221AC), suitable for automated assembly. Its low leakage current of 0.2µA at 25°C makes it ideal for battery-powered applications.

SMA6F188AY Quick Information

Product Type: TVS Diode
Series: SMA6F
Canonical Name: SMA6F188AY
Subcategory: TVS Diodes

SMA6F188AY Compliance

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

SMA6F188AY Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

SMA6F188AY Features

  • Unidirectional TVS diode for overvoltage protection.
  • Clamping voltage of 134V at 30A.
  • Peak pulse power of 600W (10/1000µs).
  • ESD immunity up to 30kV contact and air.
  • SMAflat surface mount package.

SMA6F188AY Applications

  • Protects automotive electronics from load dump transients.
  • Ideal for ESD protection in portable devices.
  • Used in power supply input protection circuits.
  • Suitable for industrial sensor and control interfaces.

SMA6F188AY FAQs

7 frequently asked questions generated from this part’s specifications.
What is the stand-off voltage of the SMA6F188AY?

The stand-off voltage is 188 V.

What is the breakdown voltage?

The breakdown voltage is typically 71.1 V at 10 mA.

What is the clamping voltage?

The clamping voltage is 134 V maximum at 30A peak pulse current.

What is the peak pulse current rating?

The peak pulse current is 2 A (600W pulse) and 30 A (for clamping voltage test) under 10/1000 µs waveform.

What package does the SMA6F188AY come in?

It comes in an SMAflat surface mount package (DO-221AC).

What is the ESD immunity level?

It exceeds 30 kV contact and air discharge per IEC 61000-4-2 and ISO10605.

Does the SMA6F188AY provide automotive pulse protection?

Yes, it complies with ISO7637-2 pulses 1, 2a, 3a, and 3b with specified voltage levels.

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