SMCJ75CE3/TR13

Part Overview

The SMCJ75CE3/TR13 is a Transient Voltage Suppressor (TVS) diode manufactured by Microchip Technology, classified as a surface mount Zener device in the DO-214AB (SMC) package. This component is designed for general purpose transient voltage suppression applications and maintains Active product status. Alternative equivalent parts are necessary to ensure design flexibility, supply chain resilience, and compatibility with varying procurement requirements across different manufacturers.

Substiute Parts

SMCJ75CE3/TR13

Microchip TechnologyIn Stock: 880SMCJ75CE3/TR13 Datasheet

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5.0SMDJ75CA

MDE Semiconductor IncIn Stock: 93625.0SMDJ75CA Datasheet

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SMCJ75CA

Fairchild SemiconductorIn Stock: 7261SMCJ75CA Datasheet

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SMCJ75CA

Fairchild SemiconductorIn Stock: 7261SMCJ75CA Datasheet

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SMCJ75CA

Fairchild SemiconductorIn Stock: 7261SMCJ75CA Datasheet

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SMDJ75CA

SMC Diode SolutionsIn Stock: 9335SMDJ75CA Datasheet

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SMDJ75CA-T7

LittelfuseIn Stock: 755SMDJ75CA-T7 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

TVS diode substitution for the SMCJ75CE3/TR13 is determined by the following critical parameters that must remain equivalent:

Fixed Parameters (Must Be Identical):

• Voltage - Reverse Standoff (Typ): 75V
• Voltage - Breakdown (Min): 83.3V
• Package / Case: DO-214AB, SMC (surface mount compatibility)
• Type: Zener
• Bidirectional Channels: 1
• Mounting Type: Surface Mount
• Applications: General Purpose

Allowable Parameter Variance:

• Voltage - Clamping (Max) @ Ipp: Substitute parts may vary (121V to 134V acceptable)
• Current - Peak Pulse (10/1000µs): Substitute parts may vary (11.2A to 41.4A acceptable)
• Power - Peak Pulse: Substitute parts may vary (1500W to 5000W acceptable)
• Operating Temperature Range: Substitute parts may vary within -55°C to -65°C minimum and 150°C maximum

The identified substitute parts (5.0SMDJ75CA, SMCJ75CA, SMDJ75CA-T7, SMDJ75CA) maintain the identical standoff and breakdown voltage specifications while offering alternative clamping voltages and current ratings. These variations allow for design optimization based on specific circuit protection requirements.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain Active product status and comply with RoHS requirements (where specified), ensuring long-term availability and regulatory compliance.

SMCJ75CA (Fairchild Semiconductor) provides functional equivalence with identical clamping voltage (121V) and peak pulse current (12.4A), making it the closest electrical match to the original part across voltage-critical applications.

SMDJ75CA-T7 (Littelfuse) and SMDJ75CA (SMC Diode Solutions) offer elevated current capacity (24.8A) and power dissipation (3000W), suitable for applications requiring enhanced transient energy absorption while maintaining identical standoff and breakdown voltages.

5.0SMDJ75CA (MDE Semiconductor Inc) delivers maximum current capacity (41.4A) and power dissipation (5000W), appropriate for high-energy transient suppression requirements where the 75V standoff voltage specification must be preserved.

Substitution selection depends on whether clamping voltage preservation or current/power rating enhancement is prioritized for the specific circuit protection design.

Frequently Asked Questions (FAQ)

Q: What determines whether a TVS diode can substitute for the SMCJ75CE3/TR13?

A: The reverse standoff voltage (75V) and breakdown voltage (83.3V) must remain identical across all substitute parts. Package type (DO-214AB, SMC) and mounting method (surface mount) must match exactly. Clamping voltage, peak pulse current, and power dissipation may vary based on circuit requirements.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All identified substitutes use the DO-214AB (SMC) surface mount package, ensuring mechanical and electrical compatibility with the original SMCJ75CE3/TR13 PCB layout without redesign requirements.

Q: What is the difference between SMCJ75CA and SMDJ75CA variants?

A: Both maintain the critical 75V standoff and 83.3V breakdown specifications. The SMDJ series typically offers higher current capacity (24.8A vs. 12.4A) and power dissipation (3000W vs. 1500W), making it suitable for higher-energy transient events. Selection depends on application-specific energy absorption requirements.

Q: Can I use 5.0SMDJ75CA in place of SMCJ75CE3/TR13 without circuit modifications?

A: The 5.0SMDJ75CA maintains voltage equivalence (75V standoff, 83.3V breakdown) and package compatibility. The elevated current rating (41.4A) and power dissipation (5000W) represent design margin improvements rather than compatibility issues. No circuit modifications are required.

Q: What is the temperature range difference between substitute parts?

A: The SMCJ75CE3/TR13 and SMDJ75CA-T7 operate across -65°C to 150°C. The SMCJ75CA, SMDJ75CA, and 5.0SMDJ75CA operate across -55°C to 150°C. For applications requiring -65°C minimum temperature operation, SMCJ75CE3/TR13 or SMDJ75CA-T7 must be selected.

Q: Are RoHS certifications consistent across all substitute parts?

A: SMCJ75CE3/TR13, 5.0SMDJ75CA, SMDJ75CA-T7, and SMDJ75CA are ROHS3 compliant. SMCJ75CA compliance status is not specified in available data. Verify RoHS requirements before part selection for regulated applications.