CD214A-T12CALF Equivalent & Substitute Parts

Part Overview

The CD214A-T12CALF 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 12V reverse standoff voltage with a 19.9V maximum clamping voltage and 20.1A peak pulse current capability in a DO-214AC (SMA) package. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.

Substiute Parts

CD214A-T12CALF

Bourns Inc.In Stock: 755CD214A-T12CALF Datasheet

Current PartRFQ

SMAJ12CA

MDDIn Stock: 26563SMAJ12CA Datasheet

DirectRFQ

SMAJ12CA

MDDIn Stock: 26563SMAJ12CA Datasheet

DirectRFQ

SMAJ12CA

MDDIn Stock: 26563SMAJ12CA Datasheet

DirectRFQ

SM4T14CAY

STMicroelectronicsIn Stock: 5686SM4T14CAY Datasheet

SimilarRFQ

SMA6J12CA-TP

Micro Commercial CoIn Stock: 36656SMA6J12CA-TP Datasheet

SimilarRFQ

SMA6J12CA-TR

STMicroelectronicsIn Stock: 20133SMA6J12CA-TR Datasheet

SimilarRFQ

SMAJ12CA-TP

Micro Commercial CoIn Stock: 9192SMAJ12CA-TP Datasheet

SimilarRFQ

SMAJ12CA-TR

STMicroelectronicsIn Stock: 4615SMAJ12CA-TR Datasheet

SimilarRFQ

SMAJ13CA-TP

Micro Commercial CoIn Stock: 10316SMAJ13CA-TP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD214A-T12CALF is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - Reverse Standoff: 12V (exact match required)
• Voltage - Breakdown (Min): 13.3V (exact match required)
• Voltage - Clamping (Max) @ Ipp: 19.9V (exact match required)
• Current - Peak Pulse (10/1000µs): 20.1A (exact match required)
• Power - Peak Pulse: 400W (exact match required)
• Package / Case: DO-214AC, SMA (exact match required)
• Mounting Type: Surface Mount (exact match required)

Secondary Compatibility Parameters:

• Type: Zener (must match)
• Bidirectional Channels: 1 (must match)
• RoHS Status: ROHS3 Compliant (must match)
• Moisture Sensitivity Level: 1 (Unlimited) (must match)

Substitute parts are grouped into two categories: direct equivalents (matching all primary parameters) and similar alternatives (matching voltage and package specifications but with variations in current handling or clamping voltage).

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Preferred): SMAJ12CA-TP (Micro Commercial Co) is the primary direct equivalent, matching all critical electrical parameters: 12V reverse standoff, 13.3V breakdown minimum, 19.9V clamping maximum, and 20.1A peak pulse current. This part is active in production status and ROHS3 compliant. Operating temperature extends to -55°C ~ 175°C (TA), providing enhanced thermal performance compared to the original CD214A-T12CALF.

Alternative Direct Equivalent: SMAJ12CA (MDD) provides identical electrical specifications with 12V standoff, 19.9V clamping, and 20.1A peak pulse current. This part is active and ROHS3 compliant. Operating temperature range is -50°C ~ 150°C (TJ), which is slightly narrower on the lower end compared to the original specification.

Similar Alternatives with Higher Current Capability: SMA6J12CA-TP (Micro Commercial Co) and SMA6J12CA-TR (STMicroelectronics) maintain the 12V standoff and 19.9V clamping voltage but offer increased peak pulse current (30.2A and 157A respectively) and higher power dissipation (600W). These parts are suitable for applications requiring enhanced transient protection margin. Both are active and ROHS3 compliant with extended operating temperature ranges to 175°C.

Similar Alternatives with Higher Clamping Voltage: SM4T14CAY (STMicroelectronics) and SMAJ12CA-TR (STMicroelectronics) maintain the 12V standoff but feature 25.3V clamping voltage with significantly higher peak pulse current (91A). These parts are suitable for applications where higher clamping voltage is acceptable. Both are active, ROHS3 compliant, and automotive-qualified (SM4T14CAY includes AEC-Q101 qualification).

Voltage-Shifted Alternative: SMAJ13CA-TP (Micro Commercial Co) features a 13V reverse standoff with 14.4V breakdown minimum and 21.5V clamping maximum. This part is suitable only for applications where the higher voltage rating is compatible with circuit requirements. It is active, ROHS3 compliant, and rated to -55°C ~ 175°C (TA).

Frequently Asked Questions (FAQ)

Q: Can SMAJ12CA-TP be used as a direct replacement for CD214A-T12CALF? A: Yes. SMAJ12CA-TP matches all critical electrical parameters: 12V reverse standoff, 19.9V clamping voltage, and 20.1A peak pulse current. Both use DO-214AC (SMA) surface-mount packaging. The substitute is active in production and ROHS3 compliant.

Q: What is the difference between SMAJ12CA (MDD) and SMAJ12CA-TP (Micro Commercial Co)? A: Both parts share identical electrical specifications (12V standoff, 19.9V clamping, 20.1A peak pulse). The primary difference is operating temperature range: MDD version is -50°C ~ 150°C (TJ), while Micro Commercial Co version is -55°C ~ 175°C (TA). For applications requiring the full -55°C lower temperature limit, SMAJ12CA-TP is preferred.

Q: Why do some substitute parts have higher peak pulse current ratings? A: Parts such as SMA6J12CA-TP (30.2A) and SMA6J12CA-TR (157A) maintain the same voltage specifications but offer increased current handling capability. These are suitable for applications requiring additional transient protection margin or higher energy absorption capacity. They are electrically compatible but provide enhanced performance.

Q: Can SMAJ13CA-TP be used instead of CD214A-T12CALF? A: SMAJ13CA-TP is not a direct equivalent. It features a 13V reverse standoff (versus 12V) and 21.5V clamping voltage (versus 19.9V). This part is suitable only if the circuit design can accommodate the higher voltage rating. Use only if circuit analysis confirms compatibility with the elevated voltage specifications.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant with MSL rating of 1 (Unlimited), matching the compliance profile of the original CD214A-T12CALF.

Q: What packaging options are available for substitutes? A: All substitute parts use DO-214AC (SMA) surface-mount packaging, identical to the original part. Packaging variants include Cut Tape (CT), Digi-Reel®, and Tape & Reel (TR) options depending on manufacturer and supplier.

Q: Which substitute offers the best thermal performance? A: SMA6J12CA-TP and SMA6J12CA-TR both support operating temperatures to -55°C ~ 175°C, providing the widest thermal range. SMAJ12CA-TP also extends to 175°C (TA). These parts are preferred for applications with demanding thermal requirements.