SMCJ26C Transient Voltage Suppressor - Equivalent & Substitute Parts

Part Overview

The SMCJ26C is a 1500W bidirectional transient voltage suppressor (TVS) diode manufactured by Taiwan Semiconductor Corporation. This surface mount component operates at a 26V reverse standoff voltage with a 46.6V maximum clamping voltage and 33A peak pulse current capability. The device is designed for general-purpose transient voltage suppression applications and is currently in active production status with RoHS3 compliance.

Substitute parts are identified based on matching electrical performance parameters within the allowed tolerance ranges for TVS diode applications, specifically maintaining equivalent reverse standoff voltage, breakdown voltage, peak pulse current, and power dissipation ratings.

Substiute Parts

SMCJ26C

Taiwan Semiconductor CorporationIn Stock: 1054SMCJ26C Datasheet

Current PartRFQ

SMCJ26CA

EVVO SemiIn Stock: 18720SMCJ26CA Datasheet

SimilarRFQ

SMCJ26CA

EVVO SemiIn Stock: 18720SMCJ26CA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMCJ26C are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Reverse standoff voltage: 26V (Typ)
• Breakdown voltage minimum: 28.9V
• Bidirectional channel configuration: 1 channel
• Package type: DO-214AB, SMC (surface mount)
• Zener diode type classification
• Operating temperature range: -55°C to 150°C (TJ)
• Peak pulse power rating: 1500W

Allowable Variation Parameters:

• Clamping voltage (Max) @ Ipp: Substitutes must maintain functional transient suppression within the specified circuit protection envelope
• Peak pulse current (10/1000µs): Substitutes must meet or exceed the specified current handling capability

The SMCJ26CA from EVVO Semi qualifies as a substitute based on identical reverse standoff voltage, breakdown voltage, bidirectional channel count, package configuration, temperature range, and peak pulse power rating. Variations in clamping voltage and peak pulse current remain within acceptable engineering tolerances for general-purpose TVS applications.

Parameter Comparison

Engineering Selection Recommendations

Both the SMCJ26C and SMCJ26CA are active production components with RoHS3 compliance and REACH unaffected status. Selection between these parts is based on the following factors:

SMCJ26C (Taiwan Semiconductor Corporation):

• Primary specification reference with 46.6V maximum clamping voltage
• 33A peak pulse current rating
• Packaged in Tape & Reel (TR) format
• 977 units available in current inventory

SMCJ26CA (EVVO Semi):

• Lower clamping voltage (42.1V) provides tighter transient suppression
• Higher peak pulse current capability (35.7A)
• Packaged in Cut Tape (CT) and Digi-Reel® format
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• 18,611 units available in current inventory

Both parts maintain identical reverse standoff voltage (26V), breakdown voltage (28.9V minimum), power dissipation (1500W), operating temperature range (-55°C to 150°C), and package configuration (DO-214AB, SMC). Component selection should be based on circuit-specific clamping voltage requirements and packaging format availability.

Frequently Asked Questions (FAQ)

Q: Can SMCJ26CA replace SMCJ26C in existing designs?

A: The SMCJ26CA qualifies as a substitute based on matching reverse standoff voltage (26V), breakdown voltage (28.9V minimum), bidirectional channel configuration, package type (DO-214AB, SMC), and operating temperature range. The lower clamping voltage (42.1V vs. 46.6V) and higher peak pulse current (35.7A vs. 33A) represent functional improvements for transient suppression. Circuit validation is required to confirm compatibility with specific application requirements.

Q: What are the key electrical differences between these parts?

A: The primary electrical differences are clamping voltage and peak pulse current. SMCJ26C specifies 46.6V clamping at 33A peak pulse current, while SMCJ26CA specifies 42.1V clamping at 35.7A peak pulse current. Both maintain identical 26V reverse standoff voltage and 28.9V minimum breakdown voltage, which are the primary parameters determining TVS diode selection for a given circuit protection application.

Q: Are the package configurations identical?

A: Both parts use the DO-214AB (SMC) surface mount package. The primary packaging difference is the supplier format: SMCJ26C is supplied in Tape & Reel (TR) format, while SMCJ26CA is supplied in Cut Tape (CT) and Digi-Reel® format. This distinction affects procurement and assembly processes but does not impact electrical performance or PCB mounting compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both SMCJ26C and SMCJ26CA are RoHS3 compliant and REACH unaffected. Both carry ECCN classification EAR99 and HTSUS code 8541.10.0080. The SMCJ26CA additionally specifies Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling.

Q: What determines whether a part qualifies as a substitute for SMCJ26C?

A: Substitution qualification is based on matching the following parameters: reverse standoff voltage (26V), breakdown voltage minimum (28.9V), bidirectional channel count (1), package type (DO-214AB, SMC), zener diode type classification, and operating temperature range (-55°C to 150°C). Peak pulse power rating (1500W) must also be maintained. Variations in clamping voltage and peak pulse current are acceptable within the functional requirements of general-purpose transient voltage suppression applications.