onsemi FSA515UCX, SPST Depletion Power Switch IC 4-Pin, WLCSP

Bulk discount available

Subtotal (1 pack of 25 units)*

£17.875

(exc. VAT)

£21.45

(inc. VAT)

Add to Basket
Select or type quantity
Temporarily out of stock
  • Shipping from 18 December 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
Per Pack*
25 - 75£0.715£17.88
100 - 225£0.616£15.40
250 +£0.534£13.35

*price indicative

Packaging Options:
RS Stock No.:
189-0531
Mfr. Part No.:
FSA515UCX
Brand:
onsemi
Find similar products by selecting one or more attributes.
Select all

Brand

onsemi

Power Switch Type

SPST Depletion

Switch On Resistance

1.1Ω

Maximum Operating Supply Voltage

5.5 V

Number of Outputs

1

Maximum Operating Current

350mA

Mounting Type

Surface Mount

Package Type

WLCSP

Pin Count

4

Maximum Operating Temperature

+85 °C

Minimum Operating Temperature

-40 °C

Dimensions

0.84 x 0.84 x 0.27mm

The FSA515 is a high-performance single-pole single-throw (SPST) depletion switch. The depletion technology allows the device to conduct signals when there is no VDD is available and to isolate signals when VDD is present. The FSA515 is 5.5V tolerant and can pass or isolate negative signal swings down to -3.0V.

SPST Depletion Switch
Normally Closed when VCC<0.5V
VSW: -3V to +5.5V
RON: 0.7Ω (Typical)
RFLAT: 1.1mΩ (Typical)
End Products
Mobile Accessories, Adapters, and Cables
Phones, Tablets, and Laptops
Headsets

Related links