STMicroelectronics 1-Element Uni-Directional TVS Diode, 400 W, 2-Pin DO-221

This image is representative of the product range

Bulk discount available

Subtotal 500 units (supplied on a reel)*

SGD266.00

(exc. GST)

SGD290.00

(inc. GST)

Add to Basket
Select or type quantity
In Stock
  • Plus 2,175 unit(s) shipping from 24 March 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
500 - 975SGD0.532
1000 - 2475SGD0.506
2500 - 4975SGD0.48
5000 +SGD0.457

*price indicative

Packaging Options:
RS Stock No.:
192-1083P
Mfr. Part No.:
SMA4F33AY
Manufacturer:
STMicroelectronics
Find similar products by selecting one or more attributes.
Select all

Brand

STMicroelectronics

Product Type

TVS Diode

Direction Type

Uni-Directional

Diode Configuration

Single

Minimum Breakdown Voltage Vbr

36.7V

Mount Type

Surface

Package Type

DO-221

Maximum Reverse Stand-off Voltage Vwm

33V

Pin Count

2

Peak Pulse Power Dissipation Pppm

400W

Minimum Operating Temperature

-55°C

Clamping Voltage VC

69.7V

Maximum Peak Pulse Current Ippm

33A

Test Current It

1mA

ESD Protection

Yes

Maximum Operating Temperature

175°C

Number of Elements per Chip

1

Height

1.05mm

Width

2.9 mm

Length

4.6mm

Series

SMA4FxxAY

Standards/Approvals

No

Automotive Standard

AEC-Q101

Maximum Reverse Leakage Current

1μA

COO (Country of Origin):
MA
The SMA4FY Transil series are designed to protect sensitive automotive circuits against surges and against electrostatic discharges. The Planar technology makes it compatible with high-end circuits where low leakage current and high junction temperature are required to provide long term reliability and stability.

Peak pulse power: 400 W (10/1000 μs) and 2.5 kW (8/20 μs)

Flat and thin package: 1 mm

Stand-off voltage range from 5 V to 188 V

Unidirectional type

Low leakage current: 0.2 μA at 25 °C and 1 μA at 85 °C

Operating Tj max: 175 °C

High power capability at Tj max.: up to 200 W (10/1000 μs)

Lead finishing: matte tin plating