SRF20150 Equivalent & Substitute Parts

Part Overview

The SRF20150 is a Schottky diode array in a 1 Pair Common Cathode configuration rated for 150 V DC reverse voltage and 20 A average rectified current per diode. The device is packaged in a TO-220-3 Full Pack with isolated tab (ITO-220AB) for through-hole mounting applications. The SRF20150 is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components that maintain electrical and mechanical compatibility for ongoing production and repair requirements.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	150 V
Current - Average Rectified (Io) (per Diode)	20 A
Voltage - Forward (Vf) (Max) @ If	1.02 V @ 10 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	100 µA @ 150 V
Operating Temperature - Junction	-55°C ~ 150°C
Mounting Type	Through Hole
Package / Case	TO-220-3 Full Pack, Isolated Tab
Supplier Device Package	ITO-220AB
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the SRF20150 is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 150 V
Current - Average Rectified (Io) (per Diode): 20 A
Package / Case: TO-220-3 Full Pack, Isolated Tab
Supplier Device Package: ITO-220AB
Mounting Type: Through Hole

Substitute Categories:

Parametric Equivalent (Full Electrical & Mechanical Match): SRF20150HC0G meets all mandatory parameters with identical electrical specifications and active product status with automotive qualification (AEC-Q101).

Direct Manufacturer Equivalents (Functionally Identical): MBRF20150CT and MBRF20150CTL are direct equivalents from Taiwan Semiconductor Corporation and Diodes Incorporated respectively, maintaining all critical electrical and mechanical parameters within the same package.

Alternative Manufacturer Equivalents (Functionally Identical): SBRF20150CT from SMC Diode Solutions provides functional equivalence with identical package and configuration, though with different electrical characteristics in forward voltage and reverse leakage specifications.

Similar Current Rating Alternatives (Reduced Current Capacity): VF10150C-E3/4W, VF20150C-E3/4W, VF20150C-M3/4W, VF30150C-E3/4W, and VF40150C-E3/4W from Vishay General Semiconductor maintain the 150 V reverse voltage rating and TO-220-3 package but with varying current ratings from 5 A to 20 A. These parts are suitable for applications where the full 20 A rating is not required.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io (per Diode)	Vf (Max) @ If	Ir @ Vr	Tj (Operating)	Package	Status
SRF20150	Taiwan Semiconductor Corporation	150 V	20 A	1.02 V @ 10 A	100 µA @ 150 V	-55°C ~ 150°C	TO-220-3 ITO-220AB	Discontinued
SRF20150HC0G	Taiwan Semiconductor Corporation	150 V	20 A	1.02 V @ 10 A	100 µA @ 150 V	-55°C ~ 150°C	TO-220-3 ITO-220AB	Active
MBRF20150CT	Taiwan Semiconductor Corporation	150 V	20 A	1.05 V @ 20 A	100 µA @ 150 V	-55°C ~ 150°C	TO-220-3 ITO-220AB	Active
MBRF20150CTL	Diodes Incorporated	Not Specified	Not Specified	Not Specified	Not Specified	Not Specified	TO-220-3 ITO-220AB	Obsolete
SBRF20150CT	SMC Diode Solutions	150 V	Not Specified	930 mV @ 150 A	1 mA @ 150 V	-55°C ~ 200°C	TO-220-3 ITO-220AB	Active
VF10150C-E3/4W	Vishay General Semiconductor	150 V	5 A	1.41 V @ 5 A	100 µA @ 150 V	-55°C ~ 150°C	TO-220-3 ITO-220AB	Active
VF20150C-E3/4W	Vishay General Semiconductor	150 V	10 A	1.2 V @ 10 A	150 µA @ 150 V	-55°C ~ 150°C	TO-220-3 ITO-220AB	Active
VF20150C-M3/4W	Vishay General Semiconductor	150 V	10 A	1.2 V @ 10 A	150 µA @ 150 V	-55°C ~ 150°C	TO-220-3 ITO-220AB	Active
VF30150C-E3/4W	Vishay General Semiconductor	150 V	15 A	1.36 V @ 15 A	200 µA @ 150 V	-55°C ~ 150°C	TO-220-3 ITO-220AB	Active
VF40150C-E3/4W	Vishay General Semiconductor	150 V	20 A	1.43 V @ 20 A	250 µA @ 150 V	-55°C ~ 150°C	TO-220-3 ITO-220AB	Active
VF40150C-M3/4W	Vishay General Semiconductor	150 V	20 A	1.43 V @ 20 A	250 µA @ 150 V	-55°C ~ 150°C	TO-220-3 ITO-220AB	Active

Engineering Selection Recommendations

Primary Recommendation: SRF20150HC0G

The SRF20150HC0G is the direct parametric equivalent of the discontinued SRF20150. This part maintains identical electrical specifications including 150 V reverse voltage, 20 A average rectified current, and 1.02 V forward voltage at 10 A. The SRF20150HC0G is in active production status with automotive-grade qualification (AEC-Q101), providing enhanced reliability for mission-critical applications. This part is the preferred direct replacement.

Secondary Recommendation: MBRF20150CT

The MBRF20150CT from Taiwan Semiconductor Corporation is a direct manufacturer equivalent with active product status. Electrical specifications are nearly identical to the SRF20150, with forward voltage of 1.05 V at 20 A (compared to 1.02 V at 10 A for the original part). This part is available in high inventory quantities and is suitable for direct substitution.

Alternative Recommendation: SBRF20150CT

The SBRF20150CT from SMC Diode Solutions maintains the 150 V reverse voltage rating and TO-220-3 package configuration. This part is in active production status. Forward voltage characteristics differ at 930 mV at 150 A, and reverse leakage is specified at 1 mA at 150 V. Operating temperature range extends to 200°C. This part is suitable for applications where the extended temperature range provides design advantage.

Current-Reduced Alternatives: VF Series (Vishay)

The Vishay TMBS® series diode arrays (VF10150C-E3/4W, VF20150C-E3/4W, VF20150C-M3/4W, VF30150C-E3/4W, VF40150C-E3/4W, VF40150C-M3/4W) maintain the 150 V reverse voltage rating and TO-220-3 package. These parts are suitable for applications where the required current rating is less than 20 A. All Vishay parts are in active production status with ROHS3 compliance and unlimited moisture sensitivity level.

Not Recommended: MBRF20150CTL

The MBRF20150CTL from Diodes Incorporated is in obsolete status and should not be selected for new designs or ongoing production.

Frequently Asked Questions (FAQ)

Q: Can the SRF20150HC0G be used as a direct replacement for the SRF20150?

A: Yes. The SRF20150HC0G is a parametric equivalent with identical electrical specifications (150 V reverse voltage, 20 A average rectified current, 1.02 V forward voltage at 10 A) and the same TO-220-3 ITO-220AB package. The primary difference is active product status with automotive qualification (AEC-Q101).

Q: What is the difference between MBRF20150CT and SRF20150?

A: Both parts maintain 150 V reverse voltage and 20 A average rectified current in the TO-220-3 ITO-220AB package. The MBRF20150CT specifies forward voltage at 1.05 V at 20 A, compared to the SRF20150 specification of 1.02 V at 10 A. Both parts are functionally equivalent for circuit applications.

Q: Can I use VF40150C-E3/4W instead of SRF20150?

A: Yes, for direct electrical and mechanical compatibility. The VF40150C-E3/4W maintains the 150 V reverse voltage rating, 20 A average rectified current, and TO-220-3 ITO-220AB package. Forward voltage is specified at 1.43 V at 20 A (compared to 1.02 V at 10 A for the SRF20150). This part is suitable for applications where the forward voltage difference does not impact circuit performance.

Q: What is the difference between VF20150C-E3/4W and VF40150C-E3/4W?

A: The primary difference is current rating. VF20150C-E3/4W is rated for 10 A average rectified current, while VF40150C-E3/4W is rated for 20 A. Both maintain 150 V reverse voltage and the same TO-220-3 ITO-220AB package. Forward voltage specifications differ accordingly: 1.2 V at 10 A for VF20150C-E3/4W and 1.43 V at 20 A for VF40150C-E3/4W.

Q: Are all substitute parts ROHS3 compliant?

A: All recommended substitute parts (SRF20150HC0G, MBRF20150CT, SBRF20150CT, and Vishay VF series) are ROHS3 compliant. The obsolete MBRF20150CTL is also ROHS3 compliant but is not recommended due to obsolete status.

Q: What is the moisture sensitivity level (MSL) for substitute parts?

A: All recommended substitute parts have MSL rating of 1 (Unlimited), identical to the original SRF20150. This indicates no moisture sensitivity restrictions for storage and handling.

Q: Can I use SBRF20150CT in applications requiring operation above 150°C?

A: Yes. The SBRF20150CT has an operating junction temperature range of -55°C to 200°C, compared to -55°C to 150°C for the SRF20150. This extended temperature range makes SBRF20150CT suitable for high-temperature applications.

Q: What is the difference between VF20150C-E3/4W and VF20150C-M3/4W?

A: Both parts have identical electrical specifications: 150 V reverse voltage, 10 A average rectified current, 1.2 V forward voltage at 10 A, and TO-220-3 ITO-220AB package. The designation difference (E3/4W versus M3/4W) indicates different manufacturing or packaging variants from Vishay. Both are in active production status.

Q: Is the SRF20150 still available from any supplier?

A: The SRF20150 is discontinued at DiGi Electronics. The recommended replacement is SRF20150HC0G, which is in active production status with higher inventory availability.

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