CD214L-T150CALF Equivalent & Substitute Parts

Part Overview

The CD214L-T150CALF is a transient voltage suppressor (TVS) diode manufactured by Bourns Inc., rated for 150V reverse standoff with 243V clamping voltage and 12.4A peak pulse current. This component is classified as obsolete, necessitating identification of active equivalent parts that maintain electrical and mechanical compatibility for new designs and production continuity.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	150V
Voltage - Breakdown (Min)	167V
Voltage - Clamping (Max) @ Ipp	243V
Current - Peak Pulse (10/1000µs)	12.4A
Power - Peak Pulse	3000W (3kW)
Package / Case	DO-214AB, SMC
Mounting Type	Surface Mount
Operating Temperature	-55°C ~ 150°C (TJ)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters: reverse standoff voltage (150V), breakdown voltage (167V minimum), clamping voltage (243V maximum), package type (DO-214AB/SMC), mounting configuration (surface mount), and RoHS3 compliance. Substitute parts are grouped into two categories based on peak pulse current and power dissipation capacity:

Category A - Direct Electrical Equivalents (12.4A / 3kW): Parts maintaining identical peak pulse current and power ratings as the original CD214L-T150CALF.

Category B - Higher Performance Alternatives (20.6A / 5kW or 6.17A / 1.5kW): Parts with different current and power specifications that share voltage parameters and package compatibility but operate at different performance levels.

Parameter Comparison

Part Number	Manufacturer	Status	Voltage - Reverse Standoff	Voltage - Clamping (Max)	Current - Peak Pulse	Power - Peak Pulse	Package	Operating Temp	RoHS Status
CD214L-T150CALF	Bourns Inc.	Obsolete	150V	243V	12.4A	3000W	DO-214AB, SMC	-55°C ~ 150°C	ROHS3
SMLJ150CA	Bourns Inc.	Active	150V	243V	12.4A	3000W	DO-214AB, SMC	-55°C ~ 150°C	ROHS3
SMDJ150CA	Alpha & Omega Semiconductor Inc.	Active	150V	243V	12.4A	3000W	DO-214AB, SMC	-55°C ~ 150°C	ROHS3
5.0SMDJ150CA	MDE Semiconductor Inc	Active	150V	243V	20.6A	5000W	DO-214AB, SMC	-55°C ~ 150°C	ROHS3
5.0SMLJ150CA-TP	Micro Commercial Co	Active	150V	243V	20.6A	5000W	DO-214AB, SMC	-55°C ~ 175°C	ROHS3
SMCJ150CA	Meritek	Active	150V	243V	6.17A	1500W	DO-214AB, SMC	-55°C ~ 150°C	ROHS3
SMCJ150CA-TP	Micro Commercial Co	Active	150V	243V	6.2A	1500W	DO-214AB, SMC	-55°C ~ 175°C	ROHS3
TV15C151JB-HF	Comchip Technology	Active	150V	243V	6.17A	1500W	DO-214AB, SMC	-55°C ~ 150°C	ROHS3

Engineering Selection Recommendations

Primary Substitutes (Direct Equivalents): SMLJ150CA (Bourns Inc.) and SMDJ150CA (Alpha & Omega Semiconductor Inc.) are active parts with identical electrical specifications and power ratings. Both maintain the 12.4A peak pulse current and 3000W power dissipation of the original CD214L-T150CALF. SMLJ150CA is manufactured by the original supplier, ensuring design continuity. Both parts are ROHS3 compliant with MSL 1 rating.

Higher Performance Alternatives: 5.0SMDJ150CA and 5.0SMLJ150CA-TP provide increased current handling (20.6A) and power dissipation (5000W) while maintaining voltage specifications. These parts are suitable for applications requiring enhanced transient protection margins. 5.0SMLJ150CA-TP extends operating temperature to 175°C.

Lower Performance Alternatives: SMCJ150CA, SMCJ150CA-TP, and TV15C151JB-HF operate at reduced current (6.17A / 6.2A) and power (1500W) levels. These parts are applicable only where circuit requirements permit lower pulse current handling. SMCJ150CA-TP and 5.0SMLJ150CA-TP offer extended temperature range to 175°C.

All substitute parts maintain DO-214AB/SMC package compatibility, surface mount configuration, and ROHS3 compliance. Selection should be based on circuit current requirements and thermal operating conditions.

Frequently Asked Questions (FAQ)

Q: Can SMLJ150CA directly replace CD214L-T150CALF? A: Yes. SMLJ150CA is a direct electrical equivalent with identical reverse standoff voltage (150V), clamping voltage (243V), peak pulse current (12.4A), and power rating (3000W). Both use DO-214AB/SMC packaging and operate across -55°C to 150°C. SMLJ150CA is manufactured by Bourns Inc., the original supplier.

Q: What is the difference between 12.4A and 20.6A rated parts? A: Peak pulse current rating indicates the maximum transient current the diode can handle. The 5.0SMDJ150CA and 5.0SMLJ150CA-TP parts rated for 20.6A provide higher transient protection capability and 5000W power dissipation versus 3000W for 12.4A parts. Selection depends on circuit transient current levels.

Q: Are lower current parts (6.17A / 6.2A) suitable substitutes? A: Lower current parts (SMCJ150CA, SMCJ150CA-TP, TV15C151JB-HF) share voltage specifications and packaging but operate at reduced current and power levels (1500W). These are suitable only if circuit transient currents do not exceed 6.2A. Undersizing current rating risks inadequate protection.

Q: Do all substitutes maintain the same operating temperature range? A: Most substitutes operate -55°C to 150°C, matching the original. SMCJ150CA-TP and 5.0SMLJ150CA-TP extend the upper limit to 175°C, providing enhanced thermal margin in high-temperature applications.

Q: Are all substitutes RoHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level), matching the original CD214L-T150CALF compliance status.

Q: What packaging format is available for these substitutes? A: All substitute parts are supplied in Tape & Reel (TR) format for automated assembly. The DO-214AB/SMC package footprint is identical across all parts, ensuring PCB compatibility without layout modifications.

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