CD214L-T22CALF Equivalent & Substitute Parts

Part Overview

The CD214L-T22CALF 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 22V reverse standoff voltage with a 35.5V maximum clamping voltage and 84.4A peak pulse current capability in a DO-214AB (SMC) package. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and repair applications.

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)	84.4A
Power - Peak Pulse	3000W (3kW)
Package / Case	DO-214AB, SMC
Mounting Type	Surface Mount
Operating Temperature	-55°C ~ 150°C (TJ)
Type	Zener
Bidirectional Channels	1
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the CD214L-T22CALF is determined by strict equivalence across the following critical parameters:

Voltage - Reverse Standoff: 22V (exact match required)
Voltage - Breakdown (Min): 24.4V (exact match required)
Voltage - Clamping (Max) @ Ipp: 35.5V (exact match required)
Package / Case: DO-214AB, SMC (exact match required)
Mounting Type: Surface Mount (exact match required)
Bidirectional Channels: 1 (exact match required)
Type: Zener (exact match required)

Substitute parts are grouped into two categories based on peak pulse current and power dissipation characteristics:

Group A (Direct Electrical Equivalents): Parts with 84.4A ± 0.6A peak pulse current and 3000W peak pulse power, matching the original specification exactly.

Group B (Higher Performance Alternatives): Parts with 141A peak pulse current and 5000W peak pulse power, providing enhanced transient protection capability while maintaining all voltage parameters and package specifications.

Group C (Reduced Performance Alternatives): Parts with 42.25A to 42.3A peak pulse current and 1500W peak pulse power, suitable for applications with lower transient energy requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	VWM (Typ)	VBR (Min)	VC (Max)	Ipp (A)	Power (W)	Package	Temp Range	Status
CD214L-T22CALF	Bourns Inc.	22V	24.4V	35.5V	84.4	3000	DO-214AB, SMC	-55°C ~ 150°C	Obsolete
SMLJ22CA	Bourns Inc.	22V	24.4V	35.5V	84.4	3000	DO-214AB, SMC	-55°C ~ 150°C	Active
5.0SMDJ22CA	MDE Semiconductor Inc	22V	24.4V	35.5V	141	5000	DO-214AB, SMC	-55°C ~ 150°C	Active
5.0SMDJ22CA-T7	Littelfuse Inc.	22V	24.4V	35.5V	141	5000	DO-214AB, SMC	-65°C ~ 150°C	Active
SMCJ22CA	Meritek	22V	24.4V	35.5V	42.25	1500	DO-214AB, SMC	-55°C ~ 150°C	Active
SMCJ22CA-TP	Micro Commercial Co	22V	24.4V	35.5V	42.3	1500	DO-214AB, SMC	-55°C ~ 175°C	Active
SMDJ22CA	Alpha & Omega Semiconductor Inc.	22V	24.4V	35.5V	84.6	3000	DO-214AB, SMC	-55°C ~ 150°C	Active
TV30C220JB-G	Comchip Technology	22V	24.4V	35.5V	84.51	3000	DO-214AB, SMC	-55°C ~ 150°C	Active

Engineering Selection Recommendations

Primary Recommendation: SMLJ22CA (Bourns Inc.) is the direct equivalent replacement for the obsolete CD214L-T22CALF. Both parts are manufactured by Bourns Inc., share identical electrical specifications (22V standoff, 24.4V breakdown, 35.5V clamping, 84.4A peak pulse, 3000W power), and are packaged in DO-214AB (SMC). The SMLJ22CA is active in production with 9774 units in stock. Both parts are ROHS3 compliant and REACH affected.

Higher Performance Alternative: The 5.0SMDJ22CA series (MDE Semiconductor Inc. and Littelfuse Inc. 5.0SMDJ22CA-T7) maintains all voltage specifications and package requirements while providing 141A peak pulse current and 5000W power dissipation. These parts are suitable for applications requiring enhanced transient protection margins. The Littelfuse variant extends the operating temperature range to -65°C.

Reduced Performance Alternative: SMCJ22CA (Meritek) and SMCJ22CA-TP (Micro Commercial Co) maintain all voltage and package specifications with reduced peak pulse current (42.25A to 42.3A) and power (1500W). These parts are appropriate for applications with lower transient energy exposure. The Micro Commercial Co variant supports extended operating temperature to 175°C.

Direct Electrical Match: SMDJ22CA (Alpha & Omega Semiconductor Inc.) and TV30C220JB-G (Comchip Technology) provide direct electrical equivalence with 84.6A and 84.51A peak pulse current respectively, matching the original 3000W power specification.

All substitute parts maintain ROHS3 compliance and are currently in active production status.

Frequently Asked Questions (FAQ)

Q: Can SMLJ22CA directly replace CD214L-T22CALF without circuit modification?

A: Yes. SMLJ22CA is a direct electrical and mechanical equivalent. Both parts share identical voltage ratings (22V standoff, 24.4V breakdown, 35.5V clamping), peak pulse current (84.4A), power dissipation (3000W), and DO-214AB (SMC) package. No circuit changes are required.

Q: What is the difference between Group A and Group B substitutes?

A: Group A substitutes (SMLJ22CA, SMDJ22CA, TV30C220JB-G) maintain the original 84.4A peak pulse current and 3000W power specification. Group B substitutes (5.0SMDJ22CA, 5.0SMDJ22CA-T7) provide 141A peak pulse current and 5000W power, offering higher transient protection capability. All voltage parameters remain identical. Group B is suitable when enhanced overvoltage protection margin is required.

Q: Are Group C substitutes (SMCJ22CA, SMCJ22CA-TP) compatible with the original design?

A: Group C substitutes maintain all voltage specifications and package compatibility but provide reduced peak pulse current (42.25A to 42.3A) and power (1500W). These parts are compatible only in applications where transient energy is lower than the original design specification. Circuit analysis is required to confirm suitability.

Q: What packaging options are available for substitutes?

A: All substitute parts are packaged in DO-214AB (SMC) surface-mount format, matching the original CD214L-T22CALF. Tape & Reel (TR) packaging is available for most active substitutes, facilitating automated assembly. Specific packaging availability should be confirmed with the component supplier.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts are ROHS3 compliant, meeting environmental and hazardous substance restrictions for electronic components.

Q: What is the operating temperature range for substitute parts?

A: Most substitutes operate from -55°C to 150°C, matching the original specification. The Littelfuse 5.0SMDJ22CA-T7 extends the lower limit to -65°C. The Micro Commercial Co SMCJ22CA-TP extends the upper limit to 175°C. Verify temperature requirements for your specific application.

Q: Which substitute offers the best inventory availability?

A: SMCJ22CA (Meritek) has the highest inventory level at 56,100 units in stock. 5.0SMDJ22CA (MDE Semiconductor Inc) has 27,130 units available. SMLJ22CA (Bourns Inc.) has 9,774 units. Inventory levels should be confirmed with your component distributor.

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