Vishay Siliconix SI43 Series

35 variants · Vishay SiliconixAll Discrete Semiconductors →

About the Vishay Siliconix SI43 Series

The Vishay Siliconix SI43 Series series groups 35 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. The listed variants share a common case of 8-SOIC (0.154\", 3.90mm Width), drain to source voltage of 30 V and drive voltage (Max rds on, min rds on) of 4.5V, 10V. Variants differ by current - continuous drain (Id) @ 25°C, gate charge (Qg) (Max) @ vgs and operating temperature, so you can match the exact current - continuous drain (Id) @ 25°C your application requires using the selection guide below.

Select a variant by

Current - continuous drain (Id) @ 25°C: 8A (Ta) · 11A (Ta) · 17A (Ta)
Gate charge (Qg) (Max) @ vgs: 18 nC @ 4.5 V · 23 nC @ 4.5 V · 80 nC @ 4.5 V
Operating temperature: -55°C ~ 150°C (TJ) · -55°C~150°C(TJ)
Package: Tape & Reel (TR) · Tape & Reel (TR); Cut Tape (CT)
Power dissipation: 1.31W (Ta) · 1.47W (Ta) · 1.6W (Ta)
Rds on (Max) @ id, vgs: 3.2mOhm @ 25A, 10V · 7mOhm @ 16A, 10V · 12.5mOhm @ 11A, 10V
Vgs: ±12V · ±20V
Vgs(th) (Max) @ id: 1.8V @ 250µA · 2V @ 250µA · 2.5V @ 250µA

Shared specifications

Case: 8-SOIC (0.154\", 3.90mm Width)
Drain to source voltage: 30 V
Drive voltage (Max rds on, min rds on): 4.5V, 10V
FET feature: -
FET type: N-Channel
Mounting: Surface Mount
Technology: MOSFET (Metal Oxide)

Variant comparison

Parameter	SI4386DY-T1-E3	SI4386DY-T1-GE3	SI4348DY-T1-E3	SI4368DY-T1-E3	SI4368DY-T1-GE3
Current - continuous drain (Id) @ 25°C	11A (Ta)	11A (Ta)	8A (Ta)	17A (Ta)	17A (Ta)
Gate charge (Qg) (Max) @ vgs	18 nC @ 4.5 V	18 nC @ 4.5 V	23 nC @ 4.5 V	80 nC @ 4.5 V	80 nC @ 4.5 V
Operating temperature	-55°C~150°C(TJ)	-55°C~150°C(TJ)	-55°C~150°C(TJ)	-55°C~150°C(TJ)	-55°C ~ 150°C (TJ)
Package	Tape & Reel (TR); Cut Tape (CT)	Tape & Reel (TR); Cut Tape (CT)	Tape & Reel (TR)	Tape & Reel (TR); Cut Tape (CT)	Tape & Reel (TR)
Power dissipation	1.47W (Ta)	1.47W (Ta)	1.31W (Ta)	1.6W (Ta)	1.6W (Ta)
Rds on (Max) @ id, vgs	7mOhm @ 16A, 10V	7mOhm @ 16A, 10V	12.5mOhm @ 11A, 10V	3.2mOhm @ 25A, 10V	3.2mOhm @ 25A, 10V
Vgs	±20V	±20V	±12V	±12V	±12V
Vgs(th) (Max) @ id	2.5V @ 250µA	2.5V @ 250µA	2V @ 250µA	1.8V @ 250µA	1.8V @ 250µA

Request a quote on any Vishay Siliconix SI43 Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.