SMCJ48C Equivalent & Substitute Parts Reference

Part Overview

The SMCJ48C from Taiwan Semiconductor Corporation is a Transient Voltage Suppressor (TVS) diode rated at 1500W peak pulse power, 48V reverse standoff, and designed for surface mount applications in the DO-214AB (SMC) package. It features bidirectional functionality and is compliant with ROHS3 and REACH standards. With 682 pieces in active stock, identifying alternative TVS diode models such as SMCJ48CA is necessary for supply chain risk mitigation, design flexibility, and multi-vendor sourcing in engineering applications.

Substiute Parts

SMCJ48C

Taiwan Semiconductor CorporationIn Stock: 741SMCJ48C Datasheet

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SMCJ48CA

Fairchild SemiconductorIn Stock: 25617SMCJ48CA Datasheet

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SMCJ48CA

Fairchild SemiconductorIn Stock: 25617SMCJ48CA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution within the Transient Voltage Suppressors (TVS) diode category is strictly based on matching or equivalent values for the key electrical and mechanical parameters provided. The criteria include:

• TVS diode category and bidirectional function
• Package/case: DO-214AB (SMC) and surface mount compatibility
• Voltage - Reverse Standoff (Typ): 48V
• Voltage - Breakdown (Min): 53.3V
• Power - Peak Pulse: 1500W (1.5kW)
• Bidirectional channels: 1
• Operating temperature range: -55°C to 150°C (TJ)
• Product status: Active

All substitute parts listed are matched on these criteria.

Parameter Comparison

Engineering Selection Recommendations

Select SMCJ48C or SMCJ48CA based only on part status, ROHS3 compliance, and REACH status according to application requirements. Both devices are listed as active and present compliance information where available. Inventory levels are provided to support supply chain decisions.

Frequently Asked Questions (FAQ)

Q1: What are the most critical parameters when substituting TVS diodes like SMCJ48C?
A1: The most critical parameters are Voltage - Reverse Standoff (Typ), Voltage - Breakdown (Min), Voltage - Clamping (Max) @ Ipp, Current - Peak Pulse (10/1000µs), Power - Peak Pulse, bidirectionality, package type, and mounting method.

Q2: Are SMCJ48C and SMCJ48CA compatible for use in the same PCB layout?
A2: Both are designed for the DO-214AB (SMC) package and surface mount mounting, ensuring mechanical and footprint compatibility.

Q3: Is there any difference in compliance or certification between SMCJ48C and SMCJ48CA?
A3: SMCJ48C is ROHS3 compliant and REACH unaffected, with SMCJ48CA providing equivalent compliance where indicated.

Q4: Does the voltage clamping or pulse current specification affect substitutability?
A4: Substitute decisions are based strictly on the provided parameters, including voltage clamping and pulse current values as matched or equivalent between SMCJ48C and SMCJ48CA.

Q5: Is substitution possible if the operating temperature range differs?
A5: Both SMCJ48C and SMCJ48CA specify an operating temperature range of -55°C to 150°C (TJ), meeting the required parameter for substitution.