SMCJ7.0CAHM3/H Equivalent & Substitute Parts

Part Overview

The SMCJ7.0CAHM3/H is a bidirectional Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, designed for telecom applications. This surface mount component features a 7V reverse standoff voltage with 12V maximum clamping voltage and 125A peak pulse current capability. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing procurement and system maintenance.

Substiute Parts

SMCJ7.0CAHM3/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 925SMCJ7.0CAHM3/H Datasheet

Current PartRFQ

SMCJ7.0CAHM3_A/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 915SMCJ7.0CAHM3_A/H Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SMCJ7.0CAHM3/H is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff: 7V (Typ)
• Voltage - Breakdown: 7.78V (Min)
• Voltage - Clamping: 12V (Max) @ Ipp
• Current - Peak Pulse: 125A (10/1000µs)
• Power - Peak Pulse: 1500W
• Package / Case: DO-214AB (SMC)
• Mounting Type: Surface Mount
• Bidirectional Channels: 1
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Automotive Grade and AEC-Q101 Qualification

The substitute part SMCJ7.0CAHM3_A/H meets all these criteria identically, with the primary distinction being packaging format (Tape & Reel) and active product status.

Parameter Comparison

Engineering Selection Recommendations

The SMCJ7.0CAHM3_A/H is a direct functional equivalent to the SMCJ7.0CAHM3/H. Both parts share identical electrical specifications, thermal ratings, and automotive-grade certifications. The substitute part maintains AEC-Q101 qualification and ROHS3 compliance, ensuring compatibility with automotive and telecom applications requiring transient voltage suppression.

The primary advantage of the SMCJ7.0CAHM3_A/H is its active product status, providing assured long-term availability. The Tape & Reel packaging format is standard for high-volume production environments and does not affect component performance or PCB assembly compatibility.

Frequently Asked Questions (FAQ)

Q: Can SMCJ7.0CAHM3_A/H be used as a direct replacement for SMCJ7.0CAHM3/H?

A: Yes. Both parts are electrically and mechanically identical across all critical parameters: voltage ratings, current handling, temperature range, package type (DO-214AB), and automotive qualifications. The substitute is functionally interchangeable.

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

A: The primary difference is packaging format. SMCJ7.0CAHM3/H uses standard packaging, while SMCJ7.0CAHM3_A/H is supplied in Tape & Reel format. Additionally, SMCJ7.0CAHM3_A/H maintains active product status, whereas the original part is discontinued.

Q: Are both parts suitable for automotive applications?

A: Yes. Both parts carry Automotive Grade designation and AEC-Q101 qualification, meeting automotive industry reliability and quality standards.

Q: Does the Tape & Reel packaging affect PCB assembly?

A: No. Tape & Reel packaging is a delivery and handling format. Once removed from the reel, the component is identical to standard packaging and performs identically during PCB assembly and operation.

Q: Are there any compliance or certification differences?

A: No. Both parts maintain identical RoHS3 compliance, MSL rating of 1 (Unlimited), and REACH unaffected status.