STMicroelectronics SMA4F20AY, Uni-Directional TVS Diode, 400W, 2-Pin SMA Flat
- RS Stock No.:
- 192-4268P
- Mfr. Part No.:
- SMA4F20AY
- Brand:
- STMicroelectronics
Bulk discount available
Subtotal 125 units (supplied on a continuous strip)*
£15.375
(exc. VAT)
£18.50
(inc. VAT)
FREE delivery for orders over £50.00
Temporarily out of stock
- Shipping from 10 September 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 125 - 225 | £0.123 |
| 250 - 600 | £0.117 |
| 625 - 1225 | £0.11 |
| 1250 + | £0.106 |
*price indicative
- RS Stock No.:
- 192-4268P
- Mfr. Part No.:
- SMA4F20AY
- Brand:
- STMicroelectronics
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | STMicroelectronics | |
| Direction Type | Uni-Directional | |
| Diode Configuration | Single | |
| Maximum Clamping Voltage | 42.8V | |
| Minimum Breakdown Voltage | 22.2V | |
| Mounting Type | Surface Mount | |
| Package Type | SMA Flat | |
| Maximum Reverse Stand-off Voltage | 20V | |
| Pin Count | 2 | |
| Peak Pulse Power Dissipation | 400W | |
| Maximum Peak Pulse Current | 54A | |
| Number of Elements per Chip | 1 | |
| Minimum Operating Temperature | -55 °C | |
| Maximum Operating Temperature | +175 °C | |
| Dimensions | 4.6 x 2.9 x 1.05mm | |
| Working Voltage | 20V | |
| ESD Voltage | 30kV | |
| Maximum Reverse Leakage Current | 1µA | |
| Test Current | 1mA | |
| Width | 2.9mm | |
| Height | 1.05mm | |
| Length | 4.6mm | |
| Automotive Standard | AEC-Q101 | |
| Capacitance | 330pF | |
Select all | ||
|---|---|---|
Brand STMicroelectronics | ||
Direction Type Uni-Directional | ||
Diode Configuration Single | ||
Maximum Clamping Voltage 42.8V | ||
Minimum Breakdown Voltage 22.2V | ||
Mounting Type Surface Mount | ||
Package Type SMA Flat | ||
Maximum Reverse Stand-off Voltage 20V | ||
Pin Count 2 | ||
Peak Pulse Power Dissipation 400W | ||
Maximum Peak Pulse Current 54A | ||
Number of Elements per Chip 1 | ||
Minimum Operating Temperature -55 °C | ||
Maximum Operating Temperature +175 °C | ||
Dimensions 4.6 x 2.9 x 1.05mm | ||
Working Voltage 20V | ||
ESD Voltage 30kV | ||
Maximum Reverse Leakage Current 1µA | ||
Test Current 1mA | ||
Width 2.9mm | ||
Height 1.05mm | ||
Length 4.6mm | ||
Automotive Standard AEC-Q101 | ||
Capacitance 330pF | ||
- 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
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