SMC Diode Solutions STF4 Series

7 variants · SMC Diode SolutionsAll Discrete Semiconductors →

About the SMC Diode Solutions STF4 Series

The SMC Diode Solutions STF4 Series series groups 7 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 TO-220-3 Full Pack, Isolated Tab, mounting of Through Hole and package of Tube. Variants differ by current - reverse leakage @ vr, operating temperature - junction and voltage - DC reverse (Vr), so you can match the exact current - reverse leakage @ vr your application requires using the selection guide below. All listed SMC Diode Solutions STF4 Series part numbers are active and orderable.

Select a variant by

Current - reverse leakage @ vr: 1 mA @ 80 V · 1 mA @ 100 V · 3 mA @ 45 V · 6 mA @ 60 V · 250 µA @ 150 V · 250 µA @ 250 V · 500 µA @ 120 V
Operating temperature - junction: -55°C ~ 150°C · -55°C ~ 175°C
Voltage - DC reverse (Vr): 45 V · 60 V · 80 V · 100 V · 120 V · 150 V · 250 V
Voltage - forward (Vf) (Max) @ if: 1 V @ 40 A · 1.43 V @ 20 A · 580 mV @ 20 A · 620 mV @ 20 A · 750 mV @ 20 A · 970 mV @ 20 A

Shared specifications

Case: TO-220-3 Full Pack, Isolated Tab
Mounting: Through Hole
Package: Tube
Speed: Fast Recovery =< 500ns, > 200mA (Io)
Technology: Schottky

Variant comparison

Parameter	STF40100C	STF40120C	STF40150C	STF40250T	STF4045C	STF4060C
Current - reverse leakage @ vr	1 mA @ 100 V	500 µA @ 120 V	250 µA @ 150 V	250 µA @ 250 V	3 mA @ 45 V	6 mA @ 60 V
Operating temperature - junction	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
Voltage - DC reverse (Vr)	100 V	120 V	150 V	250 V	45 V	60 V
Voltage - forward (Vf) (Max) @ if	750 mV @ 20 A	970 mV @ 20 A	1.43 V @ 20 A	1 V @ 40 A	580 mV @ 20 A	620 mV @ 20 A

Request a quote on any SMC Diode Solutions STF4 Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.