SS2H9-M3/5BT Equivalent & Substitute Parts

Part Overview

The SS2H9-M3/5BT is a Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates at 90 V DC reverse voltage with a 2 A average rectified current rating. The device is housed in a DO-214AA (SMB) package and is classified as Active product status. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling direct replacement in circuit applications without design modification.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	90 V
Current - Average Rectified (Io)	2 A
Voltage - Forward (Vf) (Max) @ If	790 mV @ 2 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	10 µA @ 90 V
Package / Case	DO-214AA, SMB
Mounting Type	Surface Mount
Operating Temperature - Junction	-65°C ~ 175°C
Technology	Schottky
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the SS2H9-M3/5BT are classified based on alignment with the following critical parameters: Voltage - DC Reverse (Vr) maximum rating of 90 V, Current - Average Rectified (Io) of 2 A, package type DO-214AA (SMB), surface mount mounting configuration, and Schottky technology classification. Parts are grouped into two categories: Parametric Equivalents and Manufacturer Recommended alternatives.

Parametric Equivalents maintain identical electrical specifications across all key parameters, including forward voltage, reverse leakage current, speed characteristics, and operating temperature range. These parts are direct functional replacements.

Manufacturer Recommended alternatives share the same voltage and current ratings and package type but may exhibit variations in forward voltage drop, reverse leakage current, or operating temperature range. These parts satisfy the primary electrical requirements while introducing minor performance differences.

Parameter Comparison

Parameter	SS2H9-M3/5BT	SS2H9-E3/5BT	SS2H9-E3/52T	SS29
Manufacturer	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Taiwan Semiconductor Corporation
Voltage - DC Reverse (Vr) (Max)	90 V	90 V	90 V	90 V
Current - Average Rectified (Io)	2 A	2 A	2 A	2 A
Voltage - Forward (Vf) (Max) @ If	790 mV @ 2 A	790 mV @ 2 A	790 mV @ 2 A	850 mV @ 2 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	10 µA @ 90 V	10 µA @ 90 V	10 µA @ 90 V	100 µA @ 90 V
Package / Case	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-65°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 175°C	-55°C ~ 150°C
Technology	Schottky	Schottky	Schottky	Schottky
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

SS2H9-E3/5BT and SS2H9-E3/52T are parametric equivalents to the SS2H9-M3/5BT. Both parts are manufactured by Vishay General Semiconductor - Diodes Division and maintain identical electrical characteristics across all specified parameters. These parts are ROHS3 Compliant and carry Active product status. Selection between these Vishay equivalents is determined by packaging tape configuration and inventory availability.

SS29 is a manufacturer-recommended alternative produced by Taiwan Semiconductor Corporation. This part maintains the same 90 V reverse voltage rating, 2 A current rating, and DO-214AA (SMB) package configuration. The SS29 exhibits a higher forward voltage drop of 850 mV at 2 A compared to 790 mV for the primary part, and a higher reverse leakage current of 100 µA at 90 V compared to 10 µA. The operating temperature range is narrower at -55°C to 150°C versus -65°C to 175°C. The SS29 is ROHS3 Compliant and carries Active product status. This part is suitable for applications where the increased forward voltage and reverse leakage characteristics are acceptable within circuit design margins.

Frequently Asked Questions (FAQ)

Q: Can SS2H9-E3/5BT and SS2H9-E3/52T be used interchangeably with SS2H9-M3/5BT?

A: Yes. Both parts are parametric equivalents with identical electrical specifications. The difference between these Vishay parts relates to tape configuration in the Tape & Reel packaging. Selection is based on manufacturing process compatibility and inventory requirements.

Q: What are the key differences between the Vishay SS2H9 variants and the Taiwan Semiconductor SS29?

A: The SS29 exhibits three measurable differences: forward voltage is 60 mV higher (850 mV versus 790 mV at 2 A), reverse leakage current is 10 times higher (100 µA versus 10 µA at 90 V), and the operating temperature range is narrower (-55°C to 150°C versus -65°C to 175°C). All other electrical and mechanical parameters are identical.

Q: Is the SS29 a direct replacement for the SS2H9-M3/5BT?

A: The SS29 is functionally compatible for applications where the increased forward voltage drop and reverse leakage current fall within acceptable design margins. The narrower operating temperature range must be evaluated against application requirements. Both parts share the same 90 V voltage rating, 2 A current rating, and DO-214AA (SMB) package.

Q: Are all substitute parts ROHS3 Compliant?

A: Yes. The SS2H9-M3/5BT, SS2H9-E3/5BT, SS2H9-E3/52T, and SS29 are all ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited).

Q: What determines whether a part can substitute for the SS2H9-M3/5BT?

A: Substitution is determined by matching the following parameters: 90 V DC reverse voltage rating, 2 A average rectified current, DO-214AA (SMB) package type, surface mount configuration, Schottky technology, and fast recovery speed characteristic. Forward voltage, reverse leakage current, and operating temperature range variations are secondary considerations dependent on circuit design requirements.

Q: Can the SS29 be used in high-temperature applications requiring the full -65°C to 175°C range?

A: No. The SS29 operating temperature range is limited to -55°C to 150°C. Applications requiring operation below -55°C or above 150°C must use the SS2H9-M3/5BT, SS2H9-E3/5BT, or SS2H9-E3/52T.

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