SS33-M3/9AT Equivalent & Substitute Parts

Part Overview

The SS33-M3/9AT is a Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 30 V DC reverse voltage and 3 A average rectified current in a surface mount DO-214AB (SMC) package. This component is classified as Active and complies with ROHS3 and REACH standards. Equivalent and substitute parts are identified based on matching electrical performance characteristics and mechanical compatibility within the Schottky diode rectifier category. Alternative part numbers are necessary to address supply chain availability, packaging format preferences, and sourcing from multiple manufacturers while maintaining identical functional performance.

Key Parameters

Parameter	Value	Unit
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	30	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 3 A	—
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	500 µA @ 30 V	—
Mounting Type	Surface Mount	—
Package / Case	DO-214AB, SMC	—
Operating Temperature - Junction	-55 to 125	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the SS33-M3/9AT are qualified based on the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 30 V
Current - Average Rectified (Io): 3 A
Voltage - Forward (Vf) (Max) @ If: 500 mV @ 3 A
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Operating Temperature - Junction: -55°C to 125°C
Technology: Schottky

Mechanical Compatibility Criteria:

Mounting Type: Surface Mount
Package / Case: DO-214AB, SMC
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

All substitute parts listed meet these criteria. Variations in packaging format (Tape & Reel versus Cut Tape & Digi-Reel) and minor differences in reverse leakage current (within the specified range) do not affect functional equivalence for circuit applications.

Parameter Comparison

Parameter	SS33-M3/9AT	SS33-E3/57T	SS33-E3/9AT	B330-13-F	SK33_R1_00001
Manufacturer	Vishay	Vishay	Vishay	Diodes Inc.	Panjit
Technology	Schottky	Schottky	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	30 V	30 V	30 V	30 V	30 V
Current - Average Rectified (Io)	3 A	3 A	3 A	3 A	3 A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 3 A	500 mV @ 3 A	500 mV @ 3 A	500 mV @ 3 A	500 mV @ 3 A
Speed	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA
Current - Reverse Leakage @ Vr	500 µA @ 30 V	500 µA @ 30 V	500 µA @ 30 V	500 µA @ 30 V	200 µA @ 30 V
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC
Operating Temperature - Junction	-55 to 125°C	-55 to 125°C	-55 to 125°C	-55 to 125°C	-55 to 125°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

All listed substitute parts are Active status components with ROHS3 compliance and REACH unaffected status, matching the regulatory and compliance profile of the SS33-M3/9AT.

Vishay Parts (SS33-E3/57T, SS33-E3/9AT): These parts share the same base product number (SS33) and manufacturer as the primary part. SS33-E3/9AT offers the highest inventory availability (14,400 pcs) and identical packaging format (Tape & Reel). SS33-E3/57T is available in Cut Tape & Digi-Reel format with 1,807 pcs in stock.

Diodes Incorporated (B330-13-F): This part provides the highest inventory level (62,100 pcs) and is available in Cut Tape & Digi-Reel format. It includes specified capacitance data (200 pF @ 4V, 1MHz) not provided for other alternatives.

Panjit International (SK33_R1_00001): This part demonstrates lower reverse leakage current (200 µA @ 30 V versus 500 µA), which represents improved performance in this parameter. It is available in Tape & Reel format with 1,867 pcs in stock.

Selection among these substitutes depends on packaging format requirements, inventory availability, and manufacturer preference within your supply chain.

Frequently Asked Questions (FAQ)

Q: Can SS33-E3/9AT be used as a direct replacement for SS33-M3/9AT?

A: Yes. Both parts are manufactured by Vishay, share the same base product number (SS33), and meet identical electrical specifications including 30 V reverse voltage, 3 A average rectified current, 500 mV forward voltage at 3 A, and fast recovery speed. Both are packaged in DO-214AB (SMC) surface mount format. The primary difference is packaging format: SS33-M3/9AT is supplied in Tape & Reel, while SS33-E3/9AT is also supplied in Tape & Reel with higher inventory availability.

Q: What is the difference between Tape & Reel and Cut Tape & Digi-Reel packaging?

A: Tape & Reel (TR) packaging supplies components on continuous tape wound on a reel, suitable for high-volume automated assembly. Cut Tape & Digi-Reel (CT) packaging provides components on cut tape segments or alternative reel formats, typically for lower-volume applications or mixed-component orders. Both formats contain identical components; the difference is in supply and handling format only.

Q: Is B330-13-F from Diodes Incorporated electrically equivalent?

A: Yes. The B330-13-F meets all electrical specifications of the SS33-M3/9AT: 30 V reverse voltage, 3 A average rectified current, 500 mV forward voltage at 3 A, fast recovery speed, and -55°C to 125°C operating temperature range. It is packaged in DO-214AB (SMC) surface mount format. The B330-13-F includes specified capacitance (200 pF @ 4V, 1MHz), which is not specified for the primary part.

Q: Does SK33_R1_00001 from Panjit offer any performance advantage?

A: SK33_R1_00001 demonstrates lower reverse leakage current at 200 µA @ 30 V compared to 500 µA @ 30 V for the SS33-M3/9AT. This represents improved leakage performance. All other electrical parameters are identical. The part is packaged in DO-214AB (SMC) surface mount format and meets the same temperature and compliance requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (SS33-E3/57T, SS33-E3/9AT, B330-13-F, and SK33_R1_00001) are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the compliance profile of the SS33-M3/9AT.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. All substitute parts use the same DO-214AB (SMC) package footprint and are surface mount components. They are mechanically and electrically interchangeable in PCB designs specified for the SS33-M3/9AT without requiring layout modifications.

Q: What is the significance of the reverse leakage current difference in SK33_R1_00001?

A: The SK33_R1_00001 exhibits 200 µA reverse leakage at 30 V, which is lower than the 500 µA specified for the SS33-M3/9AT. Lower reverse leakage current indicates reduced parasitic current flow in reverse bias conditions, which can be beneficial in applications sensitive to leakage, such as precision analog circuits or low-power applications. Both values remain within acceptable ranges for standard rectifier applications.

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