CD214A-T13CALF Equivalent & Substitute Parts

Part Overview

The CD214A-T13CALF is a transient voltage suppressor (TVS) diode manufactured by Bourns Inc., designed for general-purpose overvoltage protection in surface-mount applications. This component features a 13V reverse standoff voltage, 21.5V maximum clamping voltage, and 18.6A peak pulse current capability in a DO-214AC (SMA) package. The part is classified as obsolete, necessitating identification of active equivalent and substitute components to maintain design continuity and ensure supply chain availability.

Substiute Parts

CD214A-T13CALF

Bourns Inc.In Stock: 816CD214A-T13CALF Datasheet

Current PartRFQ

SMAJ13CA

MeritekIn Stock: 59252SMAJ13CA Datasheet

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SMAJ13CA

MeritekIn Stock: 59252SMAJ13CA Datasheet

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SM4T15CAY

STMicroelectronicsIn Stock: 10184SM4T15CAY Datasheet

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SMA6J13CA-TR

STMicroelectronicsIn Stock: 48308SMA6J13CA-TR Datasheet

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SMAJ12CA-M3/5A

Vishay General Semiconductor - Diodes DivisionIn Stock: 1055SMAJ12CA-M3/5A Datasheet

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SMAJ12CA-M3/61

Vishay General Semiconductor - Diodes DivisionIn Stock: 874SMAJ12CA-M3/61 Datasheet

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SMAJ13CA-TP

Micro Commercial CoIn Stock: 10316SMAJ13CA-TP Datasheet

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SMAJ13CA-TR

STMicroelectronicsIn Stock: 2147SMAJ13CA-TR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD214A-T13CALF is determined by the following critical electrical and mechanical parameters:

Primary Matching Criteria:

• Voltage - Reverse Standoff (Typ): 13V
• Voltage - Clamping (Max) @ Ipp: 21.5V (±tolerance acceptable)
• Current - Peak Pulse (10/1000µs): 18.6A (±tolerance acceptable)
• Package / Case: DO-214AC (SMA)
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C minimum to 150°C minimum

Substitution Categories:

Direct Equivalents maintain identical electrical specifications and are pin-compatible replacements with no circuit modifications required.

Similar Parts share the same reverse standoff voltage (13V) and package format but may exhibit variations in clamping voltage, peak pulse current, or power dissipation. These parts are functionally compatible for general-purpose overvoltage protection but require verification that the application tolerates the parameter variations.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent Selection:

SMAJ13CA (Meritek) and SMAJ13CA-TP (Micro Commercial Co) are direct electrical equivalents to the CD214A-T13CALF. Both parts maintain identical reverse standoff voltage (13V), clamping voltage (21.5V), peak pulse current (18.6A), and power dissipation (400W) specifications. Both are active products with ROHS3 compliance and MSL 1 rating. SMAJ13CA-TP offers an extended operating temperature range to 175°C, providing additional thermal margin for demanding applications. These parts require no circuit modifications and are suitable for direct substitution.

Similar Part Selection for Enhanced Performance:

SMA6J13CA-TR (STMicroelectronics) and SMAJ13CA-TR (STMicroelectronics) maintain the 13V reverse standoff voltage but provide higher peak pulse current capability (85A vs. 18.6A) and increased power dissipation (600W for SMA6J13CA-TR vs. 400W). These parts are suitable when the application requires enhanced transient suppression capability. SMA6J13CA-TR extends the operating temperature range to 175°C. Both are active products with ROHS3 compliance.

Lower Voltage Alternative:

SMAJ12CA-M3/5A and SMAJ12CA-M3/61 (Vishay General Semiconductor - Diodes Division) feature a 12V reverse standoff voltage with 19.9V clamping voltage and 20.1A peak pulse current. These parts are suitable only when the application circuit can tolerate a 1V lower standoff voltage threshold. Both are active products with ROHS3 compliance and identical thermal specifications to the original part.

Frequently Asked Questions (FAQ)

Q: Can SMAJ13CA directly replace CD214A-T13CALF without circuit modifications?

A: Yes. SMAJ13CA maintains identical electrical specifications (13V standoff, 21.5V clamping, 18.6A peak pulse current) and package format (DO-214AC/SMA). The part is a direct functional equivalent and requires no circuit changes.

Q: What is the difference between SMAJ13CA and SMAJ13CA-TP?

A: Both parts are direct electrical equivalents with identical voltage and current ratings. The primary difference is operating temperature range: SMAJ13CA operates to 150°C, while SMAJ13CA-TP extends to 175°C. SMAJ13CA-TP is preferred for applications with elevated ambient or junction temperature requirements.

Q: Why do SMA6J13CA-TR and SMAJ13CA-TR show higher peak pulse current (85A) than the original part (18.6A)?

A: These parts use different pulse measurement standards (8/20µs vs. 10/1000µs). The higher current value reflects measurement under a different transient waveform. Both maintain the same 13V reverse standoff voltage and are compatible with the original application if the clamping voltage variation (27.2V vs. 21.5V) is acceptable.

Q: Can I use SMAJ12CA parts as a substitute?

A: SMAJ12CA parts feature a 12V reverse standoff voltage, which is 1V lower than the original CD214A-T13CALF (13V). Substitution is only acceptable if the application circuit can tolerate this lower threshold voltage. Verify that the protected circuit operates correctly with a 12V protection threshold before implementing this substitution.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the environmental and regulatory status of the original CD214A-T13CALF.

Q: What packaging options are available for these substitutes?

A: All substitute parts are available in DO-214AC (SMA) surface-mount package format, matching the original part. Packaging variants (Tape & Reel, Cut Tape, Digi-Reel) are available from different manufacturers but do not affect electrical performance or pin compatibility.