SMBJ5.0CAHE3_A/I Equivalent & Substitute Parts

Part Overview

The SMBJ5.0CAHE3_A/I is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for transient overvoltage protection in surface mount applications, featuring a 5V reverse standoff voltage and 9.2V maximum clamping voltage. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability for new production and field replacements.

Substiute Parts

SMBJ5.0CAHE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 876SMBJ5.0CAHE3_A/I Datasheet

Current PartRFQ

SMBJ5.0CAHE3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1027SMBJ5.0CAHE3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBJ5.0CAHE3_A/I is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - Reverse Standoff (Typ): 5V
• Voltage - Breakdown (Min): 6.4V
• Voltage - Clamping (Max) @ Ipp: 9.2V
• Current - Peak Pulse (10/1000µs): 65.2A
• Power - Peak Pulse: 600W
• Bidirectional Channels: 1
• Type: Zener

Mechanical & Compliance Criteria:

• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Grade: Automotive
• Qualification: AEC-Q101
• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

The substitute part SMBJ5.0CAHE3_B/I meets all electrical and mechanical requirements for direct substitution. The primary distinction is product status: the original part is obsolete, while the substitute is active and available.

Parameter Comparison

Engineering Selection Recommendations

The SMBJ5.0CAHE3_B/I is the direct equivalent for the obsolete SMBJ5.0CAHE3_A/I. Both parts are manufactured by Vishay within the TransZorb® series and share identical electrical specifications and automotive-grade qualifications (AEC-Q101). The substitute part maintains full compliance with ROHS3 and REACH requirements.

The transition from the obsolete part to the active substitute is supported by:

• Identical electrical performance across all critical parameters
• Matching automotive grade and AEC-Q101 qualification
• Identical package and mounting specifications
• Equivalent environmental and regulatory compliance

The primary operational difference is packaging format: the original part is supplied in bulk, while the substitute is available in Tape & Reel format, which is standard for production environments.

Frequently Asked Questions (FAQ)

Q: Can SMBJ5.0CAHE3_B/I be used as a direct replacement for SMBJ5.0CAHE3_A/I?

A: Yes. Both parts are electrically and mechanically identical. All critical parameters—reverse standoff voltage, breakdown voltage, clamping voltage, peak pulse current, and power dissipation—are equivalent. Both meet automotive grade and AEC-Q101 qualification standards.

Q: What is the difference between the two part numbers?

A: The primary difference is product status and packaging. SMBJ5.0CAHE3_A/I is obsolete and supplied in bulk packaging. SMBJ5.0CAHE3_B/I is active and supplied in Tape & Reel format, which is standard for high-volume production.

Q: Are there any compatibility concerns with the DO-214AA SMB package?

A: No. Both parts use the identical DO-214AA (SMB) surface mount package. PCB footprints, soldering procedures, and thermal characteristics are equivalent.

Q: Do both parts meet automotive specifications?

A: Yes. Both parts carry automotive grade classification and AEC-Q101 qualification, meeting the same reliability and quality standards.

Q: What is the operating temperature range for these parts?

A: Both parts operate across -55°C to 150°C junction temperature, suitable for automotive and industrial applications.

Q: Are there any regulatory compliance differences?

A: No. Both parts are ROHS3 compliant and REACH unaffected, meeting identical environmental and regulatory requirements.