SMBJ22D-M3/H Equivalent & Substitute Parts

Part Overview

The SMBJ22D-M3/H is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 22V reverse standoff voltage class and is designed for general-purpose transient protection applications. The part is currently Active in product status with 703 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

SMBJ22D-M3/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 739SMBJ22D-M3/H Datasheet

Current PartRFQ

SMBJ22A-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 2220SMBJ22A-E3/52 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBJ22D-M3/H is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 22V
• Voltage - Breakdown (Min): within acceptable tolerance range
• Voltage - Clamping (Max) @ Ipp: within acceptable tolerance range
• Current - Peak Pulse (10/1000µs): equal or greater capacity
• Power - Peak Pulse: equal or greater capacity
• Package / Case: DO-214AA, SMB (identical physical form factor)
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C ~ 150°C (TJ) or wider
• Unidirectional Channels: 1
• Type: Zener

The SMBJ22A-E3/52 meets all substitution criteria and is classified as a manufacturer-recommended equivalent part.

Parameter Comparison

Engineering Selection Recommendations

Both the SMBJ22D-M3/H and SMBJ22A-E3/52 are Active products manufactured by Vishay General Semiconductor - Diodes Division within the TransZorb® series. Both parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with modern manufacturing and storage requirements. The SMBJ22A-E3/52 is available in higher inventory (2150 units) compared to the SMBJ22D-M3/H (703 units), providing improved supply chain availability. Selection between these parts should be based on procurement lead time, inventory availability, and packaging format preference (Tape & Reel vs. Cut Tape & Digi-Reel®).

Frequently Asked Questions (FAQ)

Q: Can the SMBJ22A-E3/52 be used as a direct replacement for the SMBJ22D-M3/H?

A: Yes. Both parts share identical reverse standoff voltage (22V), package form factor (DO-214AA, SMB), mounting type (Surface Mount), and operating temperature range (-55°C ~ 150°C). Voltage breakdown and clamping parameters are within compatible tolerance ranges, and peak pulse current and power ratings are equivalent or superior.

Q: What is the difference between the packaging formats listed?

A: The SMBJ22D-M3/H is supplied in Tape & Reel (TR) format. The SMBJ22A-E3/52 is available in Cut Tape (CT) & Digi-Reel® format. Both formats are suitable for surface mount assembly; selection depends on production volume and equipment compatibility.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical MSL 1 (Unlimited) moisture sensitivity ratings. Both are classified as Active products with no known end-of-life status.

Q: What parameters must remain constant when selecting a substitute TVS diode?

A: The reverse standoff voltage (22V), package type (DO-214AA, SMB), mounting method (Surface Mount), and unidirectional channel configuration (1) must remain constant. Peak pulse current and power ratings must be equal to or greater than the original specification.