CD214A-T9.0CALF Equivalent & Substitute Parts

Part Overview

The CD214A-T9.0CALF 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 9V reverse standoff voltage with a 15.4V maximum clamping voltage and 26A peak pulse current capability in a DO-214AC (SMA) package. The part is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

CD214A-T9.0CALF

Bourns Inc.In Stock: 1114CD214A-T9.0CALF Datasheet

Current PartRFQ

SMAJ9.0CA

MDDIn Stock: 54184SMAJ9.0CA Datasheet

DirectRFQ

SMAJ9.0CA

MDDIn Stock: 54184SMAJ9.0CA Datasheet

DirectRFQ

SMAJ7.5CA-M3/5A

Vishay General Semiconductor - Diodes DivisionIn Stock: 741SMAJ7.5CA-M3/5A Datasheet

SimilarRFQ

SMAJ8.0CA-M3/61

Vishay General Semiconductor - Diodes DivisionIn Stock: 1047SMAJ8.0CA-M3/61 Datasheet

SimilarRFQ

SMAJ9.0CA-TP

Micro Commercial CoIn Stock: 1131SMAJ9.0CA-TP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of TVS diodes is determined by strict equivalence across electrical and mechanical parameters. The primary criteria for direct substitution are:

Critical Parameters for Substitution:

• Reverse standoff voltage (Vwm): Must match or be within acceptable tolerance
• Maximum clamping voltage (Vc): Must not exceed the original specification
• Peak pulse current (Ipp): Must meet or exceed the original requirement
• Peak pulse power: Must meet or exceed the original specification
• Package type: Must be identical (DO-214AC/SMA)
• Bidirectional channels: Must match (1 channel)

Substitution Categories:

Direct Equivalents: Parts with identical electrical specifications (9V standoff, 15.4V clamping, 26A peak pulse) in the same package. These provide pin-for-pin and functional compatibility without design modification.

Similar Alternatives: Parts with different voltage ratings (7.5V or 8V standoff) that operate in the same package. These are suitable only when the application circuit can tolerate the different voltage characteristics and are not direct replacements.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Identical Electrical Specifications):

SMAJ9.0CA (MDD) and SMAJ9.0CA-TP (Micro Commercial Co) are direct functional equivalents to the CD214A-T9.0CALF. Both maintain the 9V reverse standoff voltage, 15.4V clamping voltage, and 26A peak pulse current. Both are active products with ROHS3 compliance and MSL 1 rating. SMAJ9.0CA-TP offers an extended operating temperature range (-55°C to 175°C) compared to the original specification (-55°C to 150°C), providing additional thermal margin. SMAJ9.0CA (MDD) operates at -50°C minimum, which is 5°C higher than the original part.

Similar Alternatives (Different Voltage Ratings):

SMAJ8.0CA-M3/61 (Vishay) and SMAJ7.5CA-M3/5A (Vishay) are not direct substitutes due to lower reverse standoff voltages (8V and 7.5V respectively) and lower clamping voltages (13.6V and 12.9V). These parts are suitable only in applications where the circuit design can accommodate reduced voltage protection thresholds. Both are active Vishay TransZorb® products with ROHS3 compliance and full temperature range support (-55°C to 150°C).

Compliance and Availability:

All substitute parts maintain ROHS3 compliance and MSL 1 moisture sensitivity ratings. Inventory availability is highest for SMAJ9.0CA (MDD) at 54,100 units. SMAJ9.0CA-TP (MCC) provides 1,105 units with extended temperature range. Vishay alternatives provide 966 units (8V) and 693 units (7.5V).

Frequently Asked Questions (FAQ)

Q: Can SMAJ9.0CA (MDD) be used as a direct replacement for CD214A-T9.0CALF?

A: Yes. SMAJ9.0CA matches all critical electrical parameters: 9V reverse standoff voltage, 15.4V clamping voltage, 26A peak pulse current, and 400W peak pulse power. Both use the DO-214AC (SMA) package. The part is pin-for-pin compatible and functionally equivalent.

Q: What is the difference between SMAJ9.0CA and SMAJ9.0CA-TP?

A: Both parts have identical electrical specifications (9V standoff, 15.4V clamping, 26A peak pulse). The primary difference is operating temperature range: SMAJ9.0CA-TP extends to 175°C maximum junction temperature compared to 150°C for SMAJ9.0CA. SMAJ9.0CA-TP is packaged in bulk, while SMAJ9.0CA is supplied in tape and reel.

Q: Why are SMAJ8.0CA-M3/61 and SMAJ7.5CA-M3/5A listed as alternatives rather than direct substitutes?

A: These parts have lower reverse standoff voltages (8V and 7.5V respectively) and lower clamping voltages (13.6V and 12.9V) compared to the original 9V standoff and 15.4V clamping. They are not direct replacements and should only be used if the application circuit is designed to operate with these lower voltage thresholds.

Q: Are all substitute parts RoHS compliant?

A: SMAJ9.0CA (MDD), SMAJ8.0CA-M3/61 (Vishay), and SMAJ7.5CA-M3/5A (Vishay) are all ROHS3 compliant. SMAJ9.0CA-TP (MCC) compliance status is not specified in the provided data.

Q: What is the minimum operating temperature difference between the original part and substitutes?

A: The original CD214A-T9.0CALF operates from -55°C. SMAJ9.0CA (MDD) has a minimum of -50°C, which is 5°C higher. SMAJ9.0CA-TP (MCC), SMAJ8.0CA-M3/61 (Vishay), and SMAJ7.5CA-M3/5A (Vishay) all maintain -55°C minimum, matching the original specification.

Q: Can the Vishay TransZorb® parts be used in existing designs without circuit modification?

A: SMAJ8.0CA-M3/61 and SMAJ7.5CA-M3/5A have different voltage ratings and are not direct substitutes. Circuit modification or validation is required to confirm compatibility with the lower clamping voltages before implementation.