CD214C-T22CALF Equivalent & Substitute Parts

Part Overview

The CD214C-T22CALF is a 22V bidirectional Zener transient voltage suppressor (TVS) diode manufactured by Bourns Inc. in DO-214AB (SMC) surface mount package. This component is rated for 35.5V clamping voltage and 42.2A peak pulse current, with 1500W peak pulse power dissipation. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	22V
Voltage - Breakdown (Min)	24.4V
Voltage - Clamping (Max) @ Ipp	35.5V
Current - Peak Pulse (10/1000µs)	42.2A
Power - Peak Pulse	1500W
Type	Zener
Bidirectional Channels	1
Package / Case	DO-214AB, SMC
Operating Temperature	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the CD214C-T22CALF is determined by strict electrical and mechanical parameter matching:

Critical Parameters for Substitution:

Voltage - Reverse Standoff: 22V (exact match required)
Voltage - Clamping (Max) @ Ipp: 35.5V (exact match required)
Voltage - Breakdown (Min): 24.4V (exact match required)
Package / Case: DO-214AB, SMC (exact match required)
Type: Zener, Bidirectional (exact match required)
RoHS Status: ROHS3 Compliant (compliance requirement)

Direct Equivalents maintain identical electrical specifications and current ratings (42.2A ± 0.25A range).

Similar Substitutes maintain identical voltage parameters and package but differ in peak pulse current (84.6A to 141A) and power dissipation (3000W to 5000W), providing enhanced transient protection capability within the same voltage class and package footprint.

Parameter Comparison

Part Number	Manufacturer	Status	Voltage Standoff (V)	Voltage Clamp (V)	Current Ipp (A)	Power Peak (W)	Temp Range (°C)	Package	RoHS
CD214C-T22CALF	Bourns Inc.	Obsolete	22	35.5	42.2	1500	-55 ~ 150	DO-214AB	ROHS3
SMCJ22CA	Meritek	Active	22	35.5	42.25	1500	-55 ~ 150	DO-214AB	ROHS3
SMCJ22CA-TP	Micro Commercial Co	Active	22	35.5	42.3	1500	-55 ~ 175	DO-214AB	ROHS3
5.0SMDJ22CA-T7	Littelfuse Inc.	Active	22	35.5	141	5000	-65 ~ 150	DO-214AB	ROHS3
5.0SMDJ22CA	MDE Semiconductor Inc	Active	22	35.5	141	5000	-55 ~ 150	DO-214AB	ROHS3
SMDJ22CA	Alpha & Omega Semiconductor Inc.	Active	22	35.5	84.6	3000	-55 ~ 150	DO-214AB	ROHS3
TV30C220JB-G	Comchip Technology	Active	22	35.5	84.51	3000	-55 ~ 150	DO-214AB	ROHS3

Engineering Selection Recommendations

Direct Equivalents (Preferred for 1:1 Replacement):

SMCJ22CA (Meritek): Active status, identical electrical specifications, 56,100 units in stock
SMCJ22CA-TP (Micro Commercial Co): Active status, identical voltage and current ratings, extended temperature range to 175°C, 3,997 units in stock

Similar Substitutes (Enhanced Protection):

5.0SMDJ22CA-T7 (Littelfuse Inc.): Active status, 3.35× higher peak pulse current (141A vs 42.2A), 3.33× higher power dissipation (5000W vs 1500W), extended low-temperature rating (-65°C), 1,834 units in stock
5.0SMDJ22CA (MDE Semiconductor Inc): Active status, identical enhanced specifications to 5.0SMDJ22CA-T7, 27,130 units in stock
SMDJ22CA (Alpha & Omega Semiconductor Inc.): Active status, 2× higher peak pulse current (84.6A vs 42.2A), 2× higher power dissipation (3000W vs 1500W), 3,150 units in stock
TV30C220JB-G (Comchip Technology): Active status, 2× higher peak pulse current (84.51A vs 42.2A), 2× higher power dissipation (3000W vs 1500W), 760 units in stock

All substitute parts maintain ROHS3 compliance, DO-214AB package compatibility, and identical voltage parameters (22V standoff, 35.5V clamp, 24.4V breakdown minimum).

Frequently Asked Questions (FAQ)

Q: Can SMCJ22CA directly replace CD214C-T22CALF? A: Yes. SMCJ22CA is a direct equivalent with matching voltage specifications (22V standoff, 35.5V clamp), identical peak pulse current (42.25A), and identical power rating (1500W). Both use DO-214AB package. SMCJ22CA is active status with high inventory availability.

Q: What is the difference between direct equivalents and similar substitutes? A: Direct equivalents (SMCJ22CA, SMCJ22CA-TP) maintain identical current and power ratings. Similar substitutes (5.0SMDJ22CA series, SMDJ22CA, TV30C220JB-G) provide higher peak pulse current and power dissipation while maintaining identical voltage parameters. Similar substitutes offer enhanced transient protection in the same package.

Q: Can I use a higher-rated part like 5.0SMDJ22CA-T7 as a substitute? A: Yes. The 5.0SMDJ22CA-T7 maintains identical voltage specifications and package, with higher current (141A) and power (5000W) ratings. This provides enhanced protection margin. The part is electrically compatible and physically interchangeable in DO-214AB footprints.

Q: Are all substitutes ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant, matching the compliance status of the original CD214C-T22CALF.

Q: Does package compatibility affect substitution? A: All substitute parts use DO-214AB (SMC) package, identical to the original. Physical footprint and pin configuration are compatible with existing PCB designs.

Q: What temperature range should I consider for my application? A: The original CD214C-T22CALF operates -55°C to 150°C. SMCJ22CA-TP extends to 175°C. The 5.0SMDJ22CA-T7 extends the low-temperature rating to -65°C. Select based on your application requirements.

Q: Why do some substitutes have higher current ratings? A: Higher current ratings (84.6A to 141A) indicate greater transient pulse handling capability. These parts provide the same voltage protection with enhanced energy absorption, suitable for applications requiring higher surge immunity.

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