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Vishay SI41 Series

10 variants · Vishay

About the Vishay Vishay SI41 Series series

The Vishay Vishay SI41 Series series groups 10 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Every variant in the range shares a common case of 8-SOIC (0.154\", 3.90mm Width), drive voltage (Max rds on, min rds on) of 4.5V, 10V and FET feature of -. Variants differ by current - continuous drain (Id) @ 25°C, drain to source voltage and FET type, so you can match the exact current - continuous drain (Id) @ 25°C your application requires using the selection guide below. All listed Vishay SI41 Series part numbers are active and orderable.

Select a variant by

Current - continuous drain (Id) @ 25°C
10.2A (Ta), 13.6A (Tc) · 10.9A (Ta) · 17A (Tc) · 19.3A (Tc) · 24A (Tc) · 25.3A (Tc) · 25.7A (Tc) · 27.2A (Tc) · 30.5A (Tc) · 35.8A (Tc)
Drain to source voltage
20 V · 30 V · 40 V
FET type
N-Channel · P-Channel
Gate charge (Qg) (Max) @ vgs
12 nC @ 10 V · 27 nC @ 10 V · 30 nC @ 10 V · 42 nC @ 10 V · 50 nC @ 10 V · 65 nC @ 10 V · 90 nC @ 10 V · 95 nC @ 10 V · 167 nC @ 10 V · 203 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds
435 pF @ 15 V · 985 pF @ 15 V · 1155 pF @ 15 V · 1700 pF @ 15 V · 1870 pF @ 15 V · 2730 pF @ 15 V · 3630 pF @ 10 V · 4200 pF @ 20 V · 6630 pF @ 15 V · 8190 pF @ 15 V
Operating temperature
-55°C~150°C(TA) · -55°C~150°C(TJ)
Power dissipation
2.4W (Ta), 5W (Tc) · 2.5W (Ta), 4.5W (Tc) · 2.5W (Ta), 5W (Tc) · 2.5W (Ta), 6W (Tc) · 3W (Ta), 6.5W (Tc) · 3W (Ta), 6W (Tc) · 6W (Tc)
Rds on (Max) @ id, vgs
2.6mOhm @ 15A, 10V · 3.9mOhm @ 15A, 10V · 4.5mOhm @ 15A, 10V · 6mOhm @ 15.7A, 10V · 6mOhm @ 15A, 10V · 6.2mOhm @ 12A, 10V · 7.9mOhm @ 20A, 10V · 9.5mOhm @ 10A, 10V · 15mOhm @ 7A, 10V · 24mOhm @ 7.8A, 10V

Variant comparison

ParameterSI4101DY-T1-GE3SI4122DY-T1-GE3SI4128DY-T1-E3SI4143DY-T1-GE3SI4155DY-T1-GE3SI4156DY-T1-GE3
Current - continuous drain (Id) @ 25°C25.7A (Tc)27.2A (Tc)10.9A (Ta)25.3A (Tc)10.2A (Ta), 13.6A (Tc)24A (Tc)
Drain to source voltage30 V40 V30 V30 V30 V30 V
FET typeP-ChannelN-ChannelN-ChannelP-ChannelP-ChannelN-Channel
Gate charge (Qg) (Max) @ vgs203 nC @ 10 V95 nC @ 10 V12 nC @ 10 V167 nC @ 10 V50 nC @ 10 V42 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds8190 pF @ 15 V4200 pF @ 20 V435 pF @ 15 V6630 pF @ 15 V1870 pF @ 15 V1700 pF @ 15 V
Operating temperature-55°C~150°C(TJ)-55°C~150°C(TJ)-55°C~150°C(TJ)-55°C~150°C(TA)-55°C~150°C(TJ)-55°C~150°C(TJ)
Power dissipation6W (Tc)3W (Ta), 6W (Tc)2.4W (Ta), 5W (Tc)6W (Tc)2.5W (Ta), 4.5W (Tc)2.5W (Ta), 6W (Tc)
Rds on (Max) @ id, vgs6mOhm @ 15A, 10V4.5mOhm @ 15A, 10V24mOhm @ 7.8A, 10V6.2mOhm @ 12A, 10V15mOhm @ 7A, 10V6mOhm @ 15.7A, 10V

Shared specifications

Case
8-SOIC (0.154\", 3.90mm Width)
Drive voltage (Max rds on, min rds on)
4.5V, 10V
FET feature
-
Mounting type
Surface Mount
Package
Tape & Reel (TR); Cut Tape (CT)
Technology
MOSFET (Metal Oxide)

Request a quote on any Vishay SI41 Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.

Frequently asked questions

How do the Vishay Vishay SI41 Series variants differ?
Vishay SI41 Series part numbers differ by current - continuous drain (Id) @ 25°C, drain to source voltage, FET type and gate charge (Qg) (Max) @ vgs. Use the selection guide above to pick by current - continuous drain (Id) @ 25°C.
How many Vishay Vishay SI41 Series part numbers are listed?
10 Vishay Vishay SI41 Series part numbers are listed, each with specifications and a datasheet where available.
How do I get pricing and lead time for Vishay Vishay SI41 Series?
Request a quote (RFQ) for any Vishay SI41 Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.

All variants