SS35HE3_A/H Equivalent & Substitute Parts

Part Overview

The SS35HE3_A/H is a Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 50 V DC reverse voltage and 3 A average rectified current in a DO-214AB (SMC) surface mount package. This component is qualified to AEC-Q101 automotive standards and features fast recovery characteristics suitable for high-frequency rectification applications.

The SS35HE3_A/H is currently discontinued at DiGi Electronics. Equivalent and substitute parts are available from multiple manufacturers and packaging configurations, all meeting the same electrical and mechanical specifications required for direct replacement in automotive and industrial applications.

Key Parameters

Parameter	Value	Unit
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	50	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	750 mV @ 3 A	—
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	500	µA @ 50 V
Package / Case	DO-214AB, SMC	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the SS35HE3_A/H are classified based on electrical parameter equivalence and mechanical compatibility. All qualified substitutes maintain the following critical parameters:

Electrical Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 50 V
Current - Average Rectified (Io): 3 A
Voltage - Forward (Vf) (Max) @ If: 750 mV @ 3 A
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr: 500 µA @ 50 V

Mechanical Compatibility Criteria:

Package / Case: DO-214AB, SMC
Mounting Type: Surface Mount
Operating Temperature - Junction: -55°C to 150°C

Substitute parts are grouped into two categories:

Direct Manufacturer Equivalents (Vishay General Semiconductor): Parts with identical electrical specifications and automotive qualification (AEC-Q101), differing only in packaging configuration (Tape & Reel, Cut Tape, or bulk).

Parametric Equivalents (Alternative Manufacturers): Parts from Panjit International Inc. and Taiwan Semiconductor Corporation that meet all electrical and mechanical parameters with identical performance characteristics.

Non-Equivalent Alternative: The Microchip Technology 5822SMJ/TR13 is listed as a manufacturer-recommended alternative but does not meet full electrical equivalence due to reduced reverse voltage rating (40 V vs. 50 V) and different forward voltage characteristics (500 mV vs. 750 mV @ 3 A).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [mV]	Ir @ Vr [µA]	Package	Packaging Type	Product Status	Grade	AEC-Q101	RoHS
SS35HE3_A/H	Vishay	50	3	750 @ 3A	500 @ 50V	DO-214AB	Bulk	Discontinued	Automotive	Yes	ROHS3
SS35HE3_B/H	Vishay	50	3	750 @ 3A	500 @ 50V	DO-214AB	Tape & Reel	Active	Automotive	Yes	ROHS3
SS35-1HE3_B/I	Vishay	50	3	750 @ 3A	500 @ 50V	DO-214AB	Bulk	Active	Automotive	Yes	ROHS3
SS35-E3/57T	Vishay	50	3	750 @ 3A	500 @ 50V	DO-214AB	Cut Tape & Digi-Reel	Active	—	—	ROHS3
SS35-E3/9AT	Vishay	50	3	750 @ 3A	500 @ 50V	DO-214AB	Tape & Reel	Active	—	—	ROHS3
SS35-M3/57T	Vishay	50	3	750 @ 3A	500 @ 50V	DO-214AB	Tape & Reel	Active	—	—	ROHS3
SS35-M3/9AT	Vishay	50	3	750 @ 3A	500 @ 50V	DO-214AB	Tape & Reel	Active	—	—	ROHS3
SS35HE3_B/I	Vishay	50	3	750 @ 3A	500 @ 50V	DO-214AB	Tape & Reel	Active	Automotive	Yes	ROHS3
SK35_R1_00001	Panjit International Inc.	50	3	750 @ 3A	100 @ 50V	DO-214AB	Tape & Reel	Active	—	—	ROHS3
SS35	Taiwan Semiconductor Corporation	50	3	750 @ 3A	500 @ 50V	DO-214AB	Bulk	Active	—	—	ROHS3
5822SMJ/TR13	Microchip Technology	40	3	500 @ 3A	1500 @ 40V	DO-214AB	Tape & Reel	Active	—	—	Non-compliant

Engineering Selection Recommendations

Primary Substitutes (Full Electrical and Mechanical Equivalence):

The following parts are direct replacements for the SS35HE3_A/H with identical electrical performance and mechanical compatibility:

SS35HE3_B/H (Vishay): Active status, automotive grade, AEC-Q101 qualified. Available in Tape & Reel packaging with 1001 units in stock. Recommended for high-volume production requiring automotive certification.
SS35HE3_B/I (Vishay): Active status, automotive grade, AEC-Q101 qualified. Available in Tape & Reel packaging with 7940 units in stock. Highest inventory availability among Vishay automotive-qualified options.
SS35-E3/57T (Vishay): Active status, ROHS3 compliant. Available in Cut Tape & Digi-Reel packaging with 19698 units in stock. Largest inventory availability. Suitable for applications where automotive qualification is not required.
SS35-E3/9AT (Vishay): Active status, ROHS3 compliant. Available in Tape & Reel packaging with 4171 units in stock.
SS35-M3/57T (Vishay): Active status, ROHS3 compliant. Available in Tape & Reel packaging with 722 units in stock.
SS35-M3/9AT (Vishay): Active status, ROHS3 compliant. Available in Tape & Reel packaging with 987 units in stock.

Parametric Equivalents (Alternative Manufacturers):

SK35_R1_00001 (Panjit International Inc.): Active status, ROHS3 compliant. Meets all electrical specifications with reverse leakage current of 100 µA @ 50 V (lower than Vishay specification of 500 µA). Available in Tape & Reel packaging with 5600 units in stock.
SS35 (Taiwan Semiconductor Corporation): Active status, ROHS3 compliant. Meets all electrical specifications. Available in bulk packaging with 10140 units in stock.

Non-Equivalent Alternative:

5822SMJ/TR13 (Microchip Technology): This part does not meet full electrical equivalence. Reverse voltage rating is 40 V (vs. 50 V required), forward voltage is 500 mV @ 3 A (vs. 750 mV required), and reverse leakage is 1500 µA @ 40 V (vs. 500 µA @ 50 V). RoHS non-compliant. Not recommended as a direct substitute.

Selection Criteria:

For automotive applications requiring AEC-Q101 certification, select SS35HE3_B/H or SS35HE3_B/I.

For general industrial applications, SS35-E3/57T offers the highest inventory availability and active product status.

For applications with lower reverse leakage requirements, SK35_R1_00001 provides superior performance at 100 µA @ 50 V.

All recommended substitutes maintain identical package geometry (DO-214AB), mounting type (Surface Mount), and operating temperature range (-55°C to 150°C).

Frequently Asked Questions (FAQ)

Q: Can SS35HE3_B/H be used as a direct replacement for SS35HE3_A/H?

A: Yes. SS35HE3_B/H is electrically and mechanically identical to SS35HE3_A/H. Both are Vishay products with 50 V reverse voltage, 3 A current rating, 750 mV forward voltage @ 3 A, and DO-214AB package. The primary difference is packaging configuration (Tape & Reel vs. bulk) and product status (Active vs. Discontinued). SS35HE3_B/H is the recommended replacement for new designs and production.

Q: What is the difference between SS35HE3_B/H and SS35-E3/57T?

A: Both parts are electrically equivalent with identical 50 V, 3 A, and 750 mV specifications. SS35HE3_B/H is automotive-grade with AEC-Q101 qualification, while SS35-E3/57T is industrial-grade without automotive certification. SS35-E3/57T is available in Cut Tape & Digi-Reel packaging and has significantly higher inventory (19698 units). Select SS35HE3_B/H for automotive applications; select SS35-E3/57T for general industrial use.

Q: Is SK35_R1_00001 from Panjit International a suitable substitute?

A: Yes. SK35_R1_00001 meets all electrical and mechanical specifications for the SS35HE3_A/H. It is a Panjit product with identical 50 V reverse voltage, 3 A current, 750 mV forward voltage, and DO-214AB package. The reverse leakage current is 100 µA @ 50 V, which is lower than the Vishay specification of 500 µA, representing superior performance. SK35_R1_00001 is ROHS3 compliant and available in Tape & Reel packaging.

Q: Can the Microchip 5822SMJ/TR13 replace the SS35HE3_A/H?

A: No. The 5822SMJ/TR13 does not meet electrical equivalence requirements. It has a 40 V reverse voltage rating (vs. 50 V required), 500 mV forward voltage @ 3 A (vs. 750 mV required), and 1500 µA reverse leakage @ 40 V (vs. 500 µA @ 50 V required). Additionally, it is RoHS non-compliant. This part is not suitable as a direct substitute.

Q: What packaging options are available for equivalent parts?

A: Equivalent parts are available in the following packaging configurations: Tape & Reel (TR), Cut Tape & Digi-Reel, and bulk. All maintain the same DO-214AB (SMC) component package. Tape & Reel packaging is standard for automated assembly. Cut Tape & Digi-Reel is suitable for lower-volume applications. Bulk packaging is available for manual assembly or custom reel configurations.

Q: Are all substitute parts ROHS3 compliant?

A: All recommended substitutes are ROHS3 compliant except the Microchip 5822SMJ/TR13, which is RoHS non-compliant. ROHS3 compliance is standard across Vishay, Panjit, and Taiwan Semiconductor Corporation products listed in this reference.

Q: What is the difference between automotive-grade and industrial-grade parts?

A: Automotive-grade parts (SS35HE3_B/H, SS35HE3_B/I) carry AEC-Q101 qualification, indicating compliance with automotive industry reliability and quality standards. Industrial-grade parts (SS35-E3/57T, SS35-E3/9AT, SS35-M3/57T, SS35-M3/9AT) do not carry automotive certification. Select automotive-grade for applications in vehicles or systems requiring automotive qualification. Industrial-grade parts are suitable for general industrial rectification applications.

Q: Can parts with different packaging types be used interchangeably in the same circuit?

A: Yes. All substitute parts maintain identical DO-214AB (SMC) component package geometry and Surface Mount mounting type. Differences in supplier packaging (Tape & Reel, Cut Tape, bulk) do not affect circuit compatibility. The component footprint and electrical performance remain identical regardless of supplier packaging configuration.

Q: What is the operating temperature range for all substitute parts?

A: All substitute parts operate across the junction temperature range of -55°C to 150°C, identical to the SS35HE3_A/H. This range is suitable for automotive and industrial applications across standard and extended temperature environments.

Q: Which substitute has the highest inventory availability?

A: SS35-E3/57T from Vishay has the highest inventory availability with 19698 units in stock. This part is suitable for applications where automotive qualification is not required and offers immediate availability for high-volume production.

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