CD214C-T14CALF Equivalent & Substitute Parts

Part Overview

The CD214C-T14CALF 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 14V reverse standoff voltage with a 23.2V maximum clamping voltage and 64.7A peak pulse current capability in a DO-214AB (SMC) package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	14V
Voltage - Breakdown (Min)	15.6V
Voltage - Clamping (Max) @ Ipp	23.2V
Current - Peak Pulse (10/1000µs)	64.7A
Power - Peak Pulse	1500W
Package / Case	DO-214AB, SMC
Mounting Type	Surface Mount
Operating Temperature	-55°C ~ 150°C
Type	Zener
Bidirectional Channels	1

Substitute Part Grouping Explanation

Substitution eligibility for the CD214C-T14CALF is determined by strict equivalence across the following critical parameters:

Voltage - Reverse Standoff: 14V (exact match required)
Voltage - Clamping (Max) @ Ipp: 23.2V (exact match required)
Package / Case: DO-214AB, SMC (exact match required)
Mounting Type: Surface Mount (exact match required)
Type: Zener, Bidirectional (exact match required)

Substitute parts are categorized into two groups:

Direct Equivalents: Parts meeting all critical parameters with identical or marginally equivalent peak pulse current (64.66A–64.7A) and power dissipation (1500W).

Higher-Performance Alternatives: Parts meeting all voltage and package requirements but with elevated peak pulse current (129.4A–216A) and power dissipation (3000W–5000W). These provide enhanced transient protection capability within the same physical footprint and voltage class.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Package / Case	Operating Temperature	Product Status
CD214C-T14CALF	Bourns Inc.	14V	23.2V	64.7A	1500W	DO-214AB, SMC	-55°C ~ 150°C	Obsolete
SMCJ14CA	Meritek	14V	23.2V	64.66A	1500W	DO-214AB (SMC)	-55°C ~ 150°C	Active
SMCJ14CA-HR	Littelfuse Inc.	14V	23.2V	64.7A	1500W	DO-214AB, SMC	-65°C ~ 150°C	Active
SMCJ14CA-HRA	Littelfuse Inc.	14V	23.2V	64.7A	1500W	DO-214AB, SMC	-65°C ~ 150°C	Active
SMCJ14CA-HRAT7	Littelfuse Inc.	14V	23.2V	64.7A	1500W	DO-214AB, SMC	-65°C ~ 150°C	Active
SMCJ14CA-TP	Micro Commercial Co	14V	23.2V	64.7A	1500W	DO-214AB, SMC	-55°C ~ 175°C	Active
SMDJ14CA	Alpha & Omega Semiconductor Inc.	14V	23.2V	129.4A	3000W	DO-214AB, SMC	-55°C ~ 150°C	Active
5.0SMDJ14CA	MDE Semiconductor Inc	14V	23.2V	216A	5000W	DO-214AB, SMC	-55°C ~ 150°C	Active
5.0SMDJ14CA-T7	Littelfuse Inc.	14V	23.2V	216A	5000W	DO-214AB, SMC	-65°C ~ 150°C	Active

Engineering Selection Recommendations

Direct Equivalents (Preferred for Drop-In Replacement):

SMCJ14CA (Meritek), SMCJ14CA-HR (Littelfuse), SMCJ14CA-HRA (Littelfuse), SMCJ14CA-HRAT7 (Littelfuse), and SMCJ14CA-TP (Micro Commercial Co) provide electrical and mechanical equivalence to the CD214C-T14CALF. All are active products with ROHS3 compliance and MSL 1 rating. Selection among these should prioritize availability, lead time, and packaging format (Tape & Reel availability is confirmed for all listed alternatives).

Higher-Performance Alternatives (Enhanced Protection):

SMDJ14CA (Alpha & Omega Semiconductor Inc.), 5.0SMDJ14CA (MDE Semiconductor Inc.), and 5.0SMDJ14CA-T7 (Littelfuse Inc.) maintain identical voltage specifications and package form factor while providing 2x to 3.3x greater peak pulse current and power dissipation. These are suitable for applications requiring enhanced transient suppression margin within the same 14V protection class. All are active products with ROHS3 compliance.

Compliance Considerations:

All substitute parts listed are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity). REACH status varies: Meritek SMCJ14CA is REACH Unaffected; all Littelfuse, MDE, Micro Commercial, and Alpha & Omega alternatives are REACH Unaffected. The original CD214C-T14CALF is REACH Affected.

Frequently Asked Questions (FAQ)

Q: Can SMCJ14CA directly replace CD214C-T14CALF without circuit modification?

A: Yes. SMCJ14CA matches all critical electrical parameters (14V standoff, 23.2V clamping, 64.66A peak pulse) and package specification (DO-214AB SMC). No circuit redesign is required for direct substitution.

Q: What is the difference between SMCJ14CA and SMDJ14CA?

A: Both maintain identical voltage ratings (14V standoff, 23.2V clamping) and package form (DO-214AB SMC). SMDJ14CA provides double the peak pulse current (129.4A vs. 64.7A) and power dissipation (3000W vs. 1500W), offering enhanced transient protection in the same footprint. Selection depends on application transient severity requirements.

Q: Are the 5.0SMDJ series parts compatible with the original design?

A: Yes, electrically and mechanically. The 5.0SMDJ14CA and 5.0SMDJ14CA-T7 maintain the same 14V standoff and 23.2V clamping voltages and use the identical DO-214AB SMC package. They provide significantly higher peak pulse current (216A) and power dissipation (5000W), suitable for high-energy transient environments. No PCB layout changes are required.

Q: What is the difference between Littelfuse SMCJ14CA-HR, SMCJ14CA-HRA, and SMCJ14CA-HRAT7?

A: All three are Littelfuse products with identical electrical specifications (14V standoff, 23.2V clamping, 64.7A peak pulse, 1500W power). The suffix designations indicate packaging and tape configuration variants. SMCJ14CA-HRAT7 specifies Tape & Reel format. Selection should be based on procurement and assembly requirements.

Q: Does operating temperature range affect substitution eligibility?

A: Operating temperature range does not disqualify substitution. The CD214C-T14CALF operates -55°C to 150°C. Alternatives with extended ranges (e.g., SMCJ14CA-TP at -55°C to 175°C, or Littelfuse variants at -65°C to 150°C) provide equal or superior thermal performance and are fully compatible.

Q: Are all substitute parts available in Tape & Reel packaging?

A: Tape & Reel availability is confirmed for SMCJ14CA (Meritek), all Littelfuse variants (SMCJ14CA-HR, SMCJ14CA-HRA, SMCJ14CA-HRAT7, 5.0SMDJ14CA-T7), SMCJ14CA-TP (Micro Commercial Co), and SMDJ14CA (Alpha & Omega). Verify specific packaging format with supplier documentation for procurement.

Q: What is the inventory status of substitute parts?

A: SMCJ14CA (Meritek) has 3100 pcs in stock. SMDJ14CA (Alpha & Omega) has 10400 pcs. 5.0SMDJ14CA (MDE) has 18160 pcs. Littelfuse variants range from 865–996 pcs. SMCJ14CA-TP (Micro Commercial) has 6891 pcs. Availability should be confirmed with suppliers for current procurement cycles.

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