SMB8J5.0CA-M3/52 Equivalent & Substitute Parts

Part Overview

The SMB8J5.0CA-M3/52 is a 5V Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, part of the TransZorb® series. This bidirectional Zener diode is designed for general-purpose transient voltage suppression in surface-mount applications. The device features a 9.2V maximum clamping voltage at peak pulse current and is rated for 87A peak pulse current with 800W peak pulse power dissipation. The part is currently active in production and ROHS3 compliant, making it suitable for modern electronic circuit protection applications where transient overvoltage events must be suppressed across a 5V nominal voltage rail.

Substiute Parts

SMB8J5.0CA-M3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 30146SMB8J5.0CA-M3/52 Datasheet

Current PartRFQ

SMB8J5.0CA-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 2428SMB8J5.0CA-E3/52 Datasheet

DirectRFQ

SMBJ5.0CA

MDDIn Stock: 49337SMBJ5.0CA Datasheet

MFR RecommendedRFQ

SMBJ5.0CA

MDDIn Stock: 49337SMBJ5.0CA Datasheet

MFR RecommendedRFQ

SMBJ5.0CA-13-F

Diodes IncorporatedIn Stock: 7571SMBJ5.0CA-13-F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMB8J5.0CA-M3/52 is determined by the following critical parameters:

Primary Substitution Criteria:

• Voltage - Reverse Standoff (Typ): 5V
• Voltage - Breakdown (Min): 6.4V
• Voltage - Clamping (Max) @ Ipp: 9.2V
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Type: Zener
• Bidirectional Channels: 1

Secondary Compatibility Parameters:

• Current - Peak Pulse (10/1000µs): 87A (primary specification; lower values acceptable for reduced transient energy applications)
• Power - Peak Pulse: 800W (primary specification; lower values acceptable for reduced transient energy applications)
• Operating Temperature Range: -55°C ~ 150°C (TJ) (acceptable range; extended ranges acceptable)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

All identified substitute parts maintain identical voltage specifications (5V standoff, 6.4V breakdown, 9.2V clamping) and package configuration, ensuring direct functional compatibility. Variations in peak pulse current and power dissipation ratings reflect different manufacturing processes or product lines while maintaining the core transient suppression function.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Highest Compatibility): SMB8J5.0CA-E3/52 from Vishay General Semiconductor - Diodes Division is a direct equivalent to the SMB8J5.0CA-M3/52. Both parts share identical electrical specifications (87A peak pulse current, 800V peak pulse power, -55°C ~ 150°C operating range) and are from the same manufacturer within the TransZorb® series. The difference between these parts is the packaging variant designation (M3/52 versus E3/52), representing different tape and reel configurations. Both are ROHS3 compliant and carry MSL 1 (Unlimited) rating.

Functional Equivalents (Reduced Peak Pulse Ratings): SMBJ5.0CA from MDD and SMBJ5.0CA-13-F from Diodes Incorporated are functional equivalents with reduced peak pulse current and power ratings. Both maintain identical voltage specifications (5V standoff, 6.4V breakdown, 9.2V clamping) and DO-214AA SMB package configuration. These parts are suitable for applications where the transient energy requirement is lower than the 87A/800W specification of the main part. SMBJ5.0CA-13-F from Diodes Incorporated offers an extended lower operating temperature limit of -65°C compared to -55°C for the main part. All substitute parts are ROHS3 compliant with MSL 1 (Unlimited) rating and active product status.

Frequently Asked Questions (FAQ)

Q: Can SMB8J5.0CA-E3/52 be used as a direct replacement for SMB8J5.0CA-M3/52? A: Yes. SMB8J5.0CA-E3/52 is a direct equivalent with identical electrical specifications and the same manufacturer. The difference is the tape and reel packaging variant. Both parts are suitable for the same circuit applications without modification.

Q: What is the difference between the main part and SMBJ5.0CA (MDD)? A: The primary difference is the peak pulse current and power rating. SMB8J5.0CA-M3/52 is rated for 87A peak pulse current and 800W peak pulse power, while SMBJ5.0CA is rated for 65.3A and 600W. Voltage specifications are identical. SMBJ5.0CA is suitable for applications with lower transient energy requirements.

Q: Are all substitute parts in the same DO-214AA SMB package? A: Yes. All substitute parts use the DO-214AA SMB package configuration, ensuring mechanical and electrical compatibility with the original part's PCB footprint and mounting requirements.

Q: What does the voltage rating difference mean for substitution? A: All parts maintain the same 5V reverse standoff voltage, 6.4V minimum breakdown voltage, and 9.2V maximum clamping voltage. These identical voltage specifications ensure that substitutes provide equivalent transient suppression performance at the same voltage threshold.

Q: Are all substitute parts RoHS compliant? A: Yes. All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, meeting modern environmental and reliability standards.

Q: Can SMBJ5.0CA-13-F be used in applications requiring -55°C minimum operating temperature? A: Yes. SMBJ5.0CA-13-F has an operating temperature range of -55°C ~ 150°C (TJ), which meets the -55°C minimum requirement. The part also supports extended lower temperature operation to -65°C if needed.