CD214A-T7.5ALF Equivalent & Substitute Parts

Part Overview

The CD214A-T7.5ALF is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Bourns Inc., designed for general-purpose overvoltage protection in surface-mount applications. This component features a 7.5V reverse standoff voltage with a 12.9V maximum clamping voltage and 31A peak pulse current capability in a DO-214AC (SMA) package. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Substiute Parts

CD214A-T7.5ALF

Bourns Inc.In Stock: 1051CD214A-T7.5ALF Datasheet

Current PartRFQ

SMAJ7.5A

MeritekIn Stock: 2027SMAJ7.5A Datasheet

DirectRFQ

SMAJ7.5A

MeritekIn Stock: 2027SMAJ7.5A Datasheet

DirectRFQ

SMAJ7.5A-TP

Micro Commercial CoIn Stock: 5836SMAJ7.5A-TP Datasheet

SimilarRFQ

SMAJ8.0A-M3/5A

Vishay General Semiconductor - Diodes DivisionIn Stock: 797SMAJ8.0A-M3/5A Datasheet

SimilarRFQ

TV04A7V5J-G

Comchip TechnologyIn Stock: 939TV04A7V5J-G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CD214A-T7.5ALF are classified based on strict electrical parameter matching within the allowed tolerance bands for TVS diodes in this category:

Direct Electrical Equivalents maintain identical specifications across all critical parameters: 7.5V reverse standoff voltage, 8.33V minimum breakdown voltage, 12.9V maximum clamping voltage, and 31A peak pulse current. These parts are mechanically and electrically interchangeable without circuit modification.

Similar Electrical Equivalents exhibit minor deviations in one or more parameters while remaining functionally compatible. Deviations are limited to peak pulse current (±0.6A tolerance) or operating temperature range extensions, with all voltage parameters held constant.

Key Parameters Determining Substitution:

• Voltage - Reverse Standoff (Typ): 7.5V (fixed requirement)
• Voltage - Clamping (Max) @ Ipp: 12.9V (fixed requirement)
• Current - Peak Pulse (10/1000µs): 31A ±0.6A (allowable tolerance)
• Package / Case: DO-214AC (SMA) (fixed requirement)
• Mounting Type: Surface Mount (fixed requirement)

Parameter Comparison

Engineering Selection Recommendations

SMAJ7.5A (Meritek) and TV04A7V5J-G (Comchip Technology) are direct electrical equivalents with identical voltage specifications and peak pulse current within 0.01A of the original part. Both are active products with ROHS3 compliance and MSL 1 rating. SMAJ7.5A offers 1966 units in stock, while TV04A7V5J-G provides 839 units. Both are suitable for direct substitution without circuit modification.

SMAJ7.5A-TP (Micro Commercial Co) maintains identical electrical parameters and offers the highest inventory availability at 5743 units. This part extends the operating temperature range to 175°C (TA), providing enhanced thermal margin in applications subject to elevated ambient conditions. ROHS3 and MSL 1 compliance are confirmed.

SMAJ8.0A-M3/5A (Vishay General Semiconductor) exhibits a 0.5V increase in reverse standoff voltage (8.0V vs. 7.5V) and a 0.7V increase in clamping voltage (13.6V vs. 12.9V), with a corresponding 1.6A reduction in peak pulse current (29.4A vs. 31A). This part is classified as a similar equivalent suitable only for applications where the higher clamping voltage and lower peak current are acceptable. ROHS3 compliance and MSL 1 rating are confirmed.

All substitute parts maintain DO-214AC (SMA) package compatibility, surface-mount configuration, and unidirectional Zener topology. Selection should prioritize inventory availability and compliance requirements specific to the application environment.

Frequently Asked Questions (FAQ)

Q: Can SMAJ7.5A be used as a direct replacement for CD214A-T7.5ALF?

A: Yes. SMAJ7.5A maintains identical voltage specifications (7.5V standoff, 12.9V clamping) and equivalent peak pulse current (31.01A vs. 31A). Both are ROHS3 compliant with MSL 1 rating and DO-214AC (SMA) packaging. Direct substitution is supported without circuit modification.

Q: What is the difference between SMAJ7.5A-TP and SMAJ7.5A?

A: Both parts maintain identical electrical parameters. SMAJ7.5A-TP is manufactured by Micro Commercial Co and extends the operating temperature range to 175°C (TA) compared to 150°C for the Meritek version. Selection depends on thermal requirements and supplier availability.

Q: Why is SMAJ8.0A-M3/5A listed as a similar equivalent rather than a direct equivalent?

A: SMAJ8.0A-M3/5A exhibits parameter deviations: 8.0V reverse standoff (vs. 7.5V), 13.6V clamping voltage (vs. 12.9V), and 29.4A peak pulse current (vs. 31A). These deviations place it outside the direct equivalency tolerance band. Use this part only when the higher clamping voltage and lower peak current are acceptable for the application.

Q: Are all substitute parts available in the same packaging?

A: Yes. All substitute parts are supplied in DO-214AC (SMA) surface-mount packages with identical mechanical footprints. No PCB layout modifications are required for substitution.

Q: What compliance certifications apply to all substitute parts?

A: All substitute parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating. ECCN classification is EAR99 and HTSUS code is 8541.10.0080 across all parts.

Q: Which substitute part offers the best inventory availability?

A: SMAJ7.5A-TP (Micro Commercial Co) provides the highest stock level at 5743 units, followed by SMAJ7.5A (Meritek) at 1966 units and TV04A7V5J-G (Comchip) at 839 units.