SMCJ100CA-M3/9AT Equivalent & Substitute Parts

Part Overview

The SMCJ100CA-M3/9AT is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 100V reverse standoff category with a 162V maximum clamping voltage and 9.3A peak pulse current rating. The part is classified as Active product status and is ROHS3 compliant. Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing, higher current ratings, different temperature ranges, or alternative packaging configurations while maintaining core electrical specifications.

Substiute Parts

SMCJ100CA-M3/9AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 657SMCJ100CA-M3/9AT Datasheet

Current PartRFQ

SMCJ100CA-E3/57T

Vishay General Semiconductor - Diodes DivisionIn Stock: 1857SMCJ100CA-E3/57T Datasheet

DirectRFQ

SMCJ100CA

HY Electronic (Cayman) LimitedIn Stock: 67674SMCJ100CA Datasheet

DirectRFQ

SMCJ100CA

HY Electronic (Cayman) LimitedIn Stock: 67674SMCJ100CA Datasheet

DirectRFQ

SMCJ100CA-13-F

Diodes IncorporatedIn Stock: 6416SMCJ100CA-13-F Datasheet

DirectRFQ

SMCJ100CA-TP

Micro Commercial CoIn Stock: 3688SMCJ100CA-TP Datasheet

DirectRFQ

5.0SMDJ100CA

MDE Semiconductor IncIn Stock: 94665.0SMDJ100CA Datasheet

MFR RecommendedRFQ

SMDJ100CA

Alpha & Omega Semiconductor Inc.In Stock: 10098SMDJ100CA Datasheet

MFR RecommendedRFQ

SMDJ100CA-T7

Littelfuse Inc.In Stock: 1551SMDJ100CA-T7 Datasheet

MFR RecommendedRFQ

SMLJ100CA

Bourns Inc.In Stock: 10782SMLJ100CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMCJ100CA-M3/9AT are categorized based on strict electrical and mechanical parameter alignment:

Direct Substitutes (Identical Electrical Specifications): Parts maintaining 100V reverse standoff, 162V clamping voltage, and 9.3A peak pulse current with identical or compatible operating temperature ranges and DO-214AB/SMC packaging qualify as direct substitutes. These include SMCJ100CA-E3/57T, SMCJ100CA, and SMCJ100CA-13-F.

Functional Equivalents (Higher Current Rating): Parts with identical voltage specifications (100V standoff, 162V clamping) but elevated peak pulse current ratings (18.5A to 30.9A) and proportionally increased power dissipation (3000W to 5000W) serve applications requiring enhanced transient suppression capability. These include 5.0SMDJ100CA, SMDJ100CA, SMDJ100CA-T7, and SMLJ100CA.

Key Parameters Determining Substitution:

• Voltage - Reverse Standoff: 100V (mandatory match)
• Voltage - Clamping (Max) @ Ipp: 162V (mandatory match)
• Package / Case: DO-214AB or SMC (mandatory match)
• Mounting Type: Surface Mount (mandatory match)
• Operating Temperature Range: -55°C minimum to 150°C minimum (acceptable if equal or exceeds)
• Current - Peak Pulse: 9.3A minimum (acceptable if equal or exceeds)
• RoHS Status: ROHS3 Compliant (mandatory match)

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution (Identical Current Rating): SMCJ100CA-E3/57T, SMCJ100CA, SMCJ100CA-13-F, and SMCJ100CA-TP are direct functional equivalents with 9.3A peak pulse current. All maintain ROHS3 compliance and Active product status. SMCJ100CA-TP offers extended operating temperature range to 175°C. Selection among these parts depends on availability, packaging configuration (Tape & Reel vs. standard), and supplier preference.

Enhanced Current Rating Selection: 5.0SMDJ100CA, SMDJ100CA, SMDJ100CA-T7, and SMLJ100CA provide higher peak pulse current ratings (18.5A to 30.9A) with proportionally increased power dissipation. These parts are suitable for applications requiring greater transient suppression margin. SMDJ100CA-T7 extends the lower operating temperature limit to -65°C. All maintain ROHS3 compliance and Active product status.

Compliance Verification: All listed substitute parts maintain ROHS3 compliance and Active product status. REACH status varies by manufacturer; verify REACH compliance requirements for specific applications. Moisture Sensitivity Level 1 (Unlimited) is consistent across all parts.

Frequently Asked Questions (FAQ)

Q: Can SMCJ100CA-TP replace SMCJ100CA-M3/9AT in all applications? A: Yes. SMCJ100CA-TP maintains identical electrical specifications (100V standoff, 162V clamping, 9.3A peak pulse) and DO-214AB/SMC packaging. The extended operating temperature range (-55°C to 175°C versus -55°C to 150°C) provides additional thermal margin without affecting compatibility.

Q: What is the difference between 9.3A and 18.6A peak pulse current ratings? A: Peak pulse current determines the maximum transient current the diode can suppress. Higher ratings (18.6A, 30.9A) provide greater suppression capability for more severe transient events. Selection depends on circuit transient severity. Voltage specifications remain identical across all ratings.

Q: Are all substitute parts in DO-214AB/SMC package? A: Yes. All listed substitute parts use DO-214AB or SMC package designation, ensuring mechanical and electrical compatibility with SMCJ100CA-M3/9AT footprints.

Q: Does higher power dissipation rating affect PCB layout requirements? A: Higher power ratings (3000W, 5000W versus 1500W) indicate enhanced thermal capability but do not change package dimensions or footprint. PCB thermal management design should account for the specific power dissipation of the selected part.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance, meeting environmental and regulatory requirements consistent with the original SMCJ100CA-M3/9AT specification.

Q: Can I use 5.0SMDJ100CA as a direct replacement? A: 5.0SMDJ100CA is a functional equivalent with identical voltage specifications and package but provides 30.9A peak pulse current versus 9.3A. It is suitable for applications requiring enhanced transient suppression. Verify circuit design accommodates the higher current rating.