SMBJ64CD-M3/H Equivalent & Substitute Parts

Part Overview

The SMBJ64CD-M3/H is a Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, part of the TransZorb® series. This surface-mount component operates as a bidirectional Zener diode in the DO-214AA (SMB) package, designed for general-purpose transient voltage suppression applications. The device is currently in active production status with 1450 units available in inventory. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this product category.

Substiute Parts

SMBJ64CD-M3/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 1499SMBJ64CD-M3/H Datasheet

Current PartRFQ

SMBJ64CA-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 45314SMBJ64CA-E3/52 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBJ64CD-M3/H is determined by strict equivalence in the following critical parameters:

• Voltage - Reverse Standoff (Typ): 64V
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Bidirectional Channels: 1
• Type: Zener
• Series: TransZorb®

The SMBJ64CA-E3/52 qualifies as a manufacturer-recommended substitute because it maintains identical reverse standoff voltage (64V), identical package configuration (DO-214AA, SMB), and identical mounting type (surface mount). Both devices share the same base product number (SMBJ64) and are manufactured by the same supplier. Electrical performance parameters remain within acceptable tolerance ranges for general-purpose TVS applications.

Parameter Comparison

Engineering Selection Recommendations

Both the SMBJ64CD-M3/H and SMBJ64CA-E3/52 are active production components with ROHS3 compliance and MSL Level 1 rating. The SMBJ64CA-E3/52 is designated as the manufacturer-recommended substitute and carries significantly higher inventory availability (45300 units versus 1450 units). Selection between these parts should be based on supply chain requirements and application-specific tolerance analysis of the clamping voltage differential (102V versus 103V) and peak pulse current variation (5.88A versus 5.8A). Both devices maintain identical reverse standoff voltage, package configuration, and thermal operating range, ensuring mechanical and electrical compatibility in surface-mount applications.

Frequently Asked Questions (FAQ)

Q: Can SMBJ64CA-E3/52 be used as a direct replacement for SMBJ64CD-M3/H?

A: Yes. Both devices share identical reverse standoff voltage (64V), package type (DO-214AA, SMB), and mounting configuration (surface mount). The clamping voltage and peak pulse current parameters differ within acceptable tolerance ranges for general-purpose TVS applications.

Q: What is the significance of the different part number suffixes (-M3/H versus -A-E3/52)?

A: The suffixes indicate different manufacturing batches, tape configurations, or supplier packaging specifications. The core electrical and mechanical specifications remain equivalent for the SMBJ64 base product number.

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

A: No. Both parts carry identical ROHS3 compliance status, REACH unaffected designation, and MSL Level 1 rating. Both are classified under the same ECCN (EAR99) and HTSUS code (8541.10.0080).

Q: What is the maximum allowable difference in clamping voltage for substitution?

A: The clamping voltage difference between SMBJ64CD-M3/H (102V) and SMBJ64CA-E3/52 (103V) is 1V. This variation is within typical manufacturing tolerances for TVS diodes in this voltage class and does not compromise functionality in general-purpose transient suppression circuits.

Q: Does the peak pulse current difference (5.88A versus 5.8A) affect circuit performance?

A: The difference of 0.08A represents a 1.4% variation and falls within standard manufacturing tolerances. Both devices maintain 600W peak pulse power rating and are suitable for equivalent circuit applications.

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

A: Yes. Both parts use identical DO-214AA (SMB) package dimensions and surface-mount footprints, allowing direct PCB layout compatibility without design modifications.