CD214C-T14ALF Equivalent & Substitute Parts

Part Overview

The CD214C-T14ALF is a transient voltage suppressor (TVS) diode manufactured by Bourns Inc., designed for general-purpose overvoltage protection in surface mount applications. This unidirectional Zener diode features a 14V reverse standoff voltage with 23.2V clamping capability and 64.7A peak pulse current handling in a DO-214AB (SMC) package. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	CD214C-T14ALF
Manufacturer	Bourns Inc.
Category	Transient Voltage Suppressors (TVS)
Type	Zener
Unidirectional Channels	1
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 (1.5kW)
Operating Temperature	-55°C ~ 150°C (TJ)
Package / Case	DO-214AB, SMC
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the CD214C-T14ALF is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Voltage - Reverse Standoff (Typ): 14V
Voltage - Clamping (Max) @ Ipp: 23.2V
Voltage - Breakdown (Min): 15.6V
Package / Case: DO-214AB (SMC)
Unidirectional Channels: 1
Type: Zener

Substitute Classification:

Direct Equivalents maintain identical electrical specifications and peak pulse current ratings (64.7A, 1500W):

SMCJ14A (Meritek) - Active status, identical specifications
SMCJ14A-HR (Littelfuse Inc.) - Active status, identical specifications
SMCJ14A-HRA (Littelfuse Inc.) - Active status, identical specifications
SMCJ14A-HRAT7 (Littelfuse Inc.) - Active status, identical specifications

Similar Parts share voltage and clamping specifications but differ in peak pulse current and power dissipation capabilities:

5.0SMDJ14A (MDE Semiconductor Inc.) - 216A Ipp, 5000W peak pulse
5.0SMDJ14A-T7 (Littelfuse Inc.) - 216A Ipp, 5000W peak pulse
SMDJ14A (Alpha & Omega Semiconductor Inc.) - 129.4A Ipp, 3000W peak pulse
SMDJ14A-T7 (Littelfuse Inc.) - 129.3A Ipp, 3000W peak pulse

All substitute parts maintain DO-214AB (SMC) package compatibility, ROHS3 compliance, and MSL 1 rating.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Operating Temperature	Product Status	RoHS Status
CD214C-T14ALF	Bourns Inc.	14V	23.2V	64.7A	1500W	-55°C ~ 150°C	Obsolete	ROHS3
SMCJ14A	Meritek	14V	23.2V	64.66A	1500W	-55°C ~ 150°C	Active	ROHS3
SMCJ14A-HR	Littelfuse Inc.	14V	23.2V	64.7A	1500W	-65°C ~ 150°C	Active	ROHS3
SMCJ14A-HRA	Littelfuse Inc.	14V	23.2V	64.7A	1500W	-65°C ~ 150°C	Active	ROHS3
SMCJ14A-HRAT7	Littelfuse Inc.	14V	23.2V	64.7A	1500W	-65°C ~ 150°C	Active	ROHS3
5.0SMDJ14A	MDE Semiconductor Inc.	14V	23.2V	216A	5000W	-55°C ~ 150°C	Active	ROHS3
5.0SMDJ14A-T7	Littelfuse Inc.	14V	23.2V	216A	5000W	-65°C ~ 150°C	Active	ROHS3
SMDJ14A	Alpha & Omega Semiconductor Inc.	14V	23.2V	129.4A	3000W	-55°C ~ 150°C	Active	ROHS3
SMDJ14A-T7	Littelfuse Inc.	14V	23.2V	129.3A	3000W	-65°C ~ 150°C	Active	ROHS3

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance):

Select SMCJ14A (Meritek), SMCJ14A-HR, SMCJ14A-HRA, or SMCJ14A-HRAT7 (all Littelfuse Inc.) when the application requires exact electrical equivalence to the CD214C-T14ALF. All direct equivalents are active products with ROHS3 compliance and MSL 1 rating. Littelfuse variants offer extended operating temperature range (-65°C vs. -55°C minimum), providing additional thermal margin in low-temperature environments.

For Higher Current/Power Applications:

Select 5.0SMDJ14A or 5.0SMDJ14A-T7 when the circuit design permits higher peak pulse current (216A) and power dissipation (5000W). These parts maintain identical voltage specifications and package compatibility while providing enhanced transient protection capability. The 5.0SMDJ14A-T7 (Littelfuse) offers -65°C minimum operating temperature.

For Intermediate Current/Power Applications:

Select SMDJ14A or SMDJ14A-T7 when intermediate current handling (129.3–129.4A) and 3000W power dissipation are required. These parts bridge the performance gap between 1500W and 5000W designs while maintaining full voltage specification compliance.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and EAR99 ECCN classification. MSL 1 rating (unlimited moisture sensitivity) is consistent across all options, eliminating moisture-related procurement constraints.

Frequently Asked Questions (FAQ)

Q: Can SMCJ14A directly replace CD214C-T14ALF without circuit modification?

A: Yes. SMCJ14A (Meritek) provides direct electrical equivalence with 64.66A peak pulse current, 23.2V clamping voltage, and 1500W peak pulse power. The DO-214AB (SMC) package is identical. No circuit redesign is required.

Q: What is the difference between SMCJ14A-HR, SMCJ14A-HRA, and SMCJ14A-HRAT7?

A: All three Littelfuse variants (SMCJ14A-HR, SMCJ14A-HRA, SMCJ14A-HRAT7) provide identical electrical specifications: 14V standoff, 23.2V clamping, 64.7A peak pulse, and 1500W power. The suffix designations indicate packaging and tape configuration variants. Electrical performance is equivalent.

Q: When should I select 5.0SMDJ14A instead of SMCJ14A?

A: Select 5.0SMDJ14A when the application experiences higher transient current events or requires greater power dissipation margin. The 5.0SMDJ14A handles 216A peak pulse current and 5000W power, compared to 64.7A and 1500W for SMCJ14A. Voltage specifications remain identical (14V standoff, 23.2V clamping). This selection is appropriate for high-energy transient environments or when circuit analysis indicates insufficient margin with 1500W devices.

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

A: Yes. All substitute parts use DO-214AB (SMC) surface mount package, ensuring PCB footprint compatibility. Tape & Reel (TR) packaging is standard across all active alternatives, supporting automated assembly processes.

Q: What is the temperature operating range difference between Bourns and Littelfuse parts?

A: The CD214C-T14ALF (Bourns) operates from -55°C to 150°C. Littelfuse variants (SMCJ14A-HR, SMCJ14A-HRA, SMCJ14A-HRAT7, 5.0SMDJ14A-T7, SMDJ14A-T7) extend the minimum temperature to -65°C, providing 10°C additional cold-temperature margin. This difference is significant for applications in extreme low-temperature environments.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance and MSL 1 (unlimited) moisture sensitivity rating, matching the original CD214C-T14ALF specifications. No additional compliance verification is required for RoHS or moisture handling.

Q: Can I use SMDJ14A in place of SMCJ14A?

A: SMDJ14A is electrically compatible but provides higher peak pulse current (129.4A vs. 64.7A) and power dissipation (3000W vs. 1500W). This represents a performance upgrade suitable for circuits requiring additional transient protection margin. Voltage specifications (14V standoff, 23.2V clamping) are identical, and DO-214AB package compatibility is maintained.

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