CD214L-T120CALF Equivalent & Substitute Parts

Part Overview

The CD214L-T120CALF 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 120V reverse standoff voltage with a 193V maximum clamping voltage and 15.6A peak pulse current capability in a DO-214AB (SMC) package. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	120V
Voltage - Breakdown (Min)	133V
Voltage - Clamping (Max) @ Ipp	193V
Current - Peak Pulse (10/1000µs)	15.6A
Power - Peak Pulse	3000W (3kW)
Package / Case	DO-214AB, SMC
Operating Temperature Range	-55°C ~ 150°C (TJ)
Type	Zener
Bidirectional Channels	1

Substitute Part Grouping Explanation

Substitution for the CD214L-T120CALF is determined by the following critical parameters:

Voltage - Reverse Standoff: 120V (required match)
Voltage - Clamping (Max) @ Ipp: 193V (required match)
Package / Case: DO-214AB, SMC (required match)
Bidirectional Channels: 1 (required match)
Type: Zener (required match)

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

Category A - Direct Electrical Equivalents (15.6A / 3kW): Parts with identical current and power ratings to the original component.

Category B - Higher Performance Alternatives (26A / 5kW or 7.8-7.9A / 1.5kW): Parts that maintain voltage specifications but differ in current handling or power dissipation capabilities.

Parameter Comparison

Part Number	Manufacturer	VWM (V)	Clamping (V)	Ipp (A)	Power (W)	Package	Temp Range (°C)	Status
CD214L-T120CALF	Bourns Inc.	120	193	15.6	3000	DO-214AB	-55 ~ 150	Obsolete
SMLJ120CA	Bourns Inc.	120	193	15.6	3000	DO-214AB	-55 ~ 150	Active
SMDJ120CA	Alpha & Omega Semiconductor Inc.	120	193	15.6	3000	DO-214AB	-55 ~ 150	Active
SMDJ120CA-T7	Littelfuse Inc.	120	193	15.5	3000	DO-214AB	-65 ~ 150	Active
SMLJ120CA-TP	Micro Commercial Co	120	193	15.6	3000	DO-214AB	-55 ~ 175	Active
5.0SMDJ120CA	MDE Semiconductor Inc	120	193	26	5000	DO-214AB	-55 ~ 150	Active
5.0SMDJ120CA-T7	Littelfuse Inc.	120	193	26	5000	DO-214AB	-65 ~ 150	Active
SMCJ120CA	Fairchild Semiconductor	120	193	7.9	1500	DO-214AB	-55 ~ 150	Active
SMCJ120CA-TP	Micro Commercial Co	120	193	7.8	1500	DO-214AB	-55 ~ 175	Active
TV15C121JB-G	Comchip Technology	120	193	7.77	1500	DO-214AB	-55 ~ 150	Active

Engineering Selection Recommendations

Direct Replacement (Preferred): SMLJ120CA (Bourns Inc.) is the primary direct equivalent, manufactured by the same supplier as the original part with identical electrical specifications and active product status. SMDJ120CA (Alpha & Omega Semiconductor Inc.) and SMDJ120CA-T7 (Littelfuse Inc.) provide equivalent performance with active status and full compliance certifications.

Extended Temperature Range: SMLJ120CA-TP and SMCJ120CA-TP both support operating temperatures to 175°C, providing additional thermal margin for applications requiring extended temperature performance.

Higher Power Dissipation: 5.0SMDJ120CA and 5.0SMDJ120CA-T7 offer 26A peak pulse current and 5kW power dissipation, suitable for applications requiring enhanced transient protection beyond the original specification.

Lower Power Applications: SMCJ120CA, SMCJ120CA-TP, and TV15C121JB-G provide 1.5kW power dissipation with 7.8-7.9A peak pulse current, appropriate for circuits with reduced transient energy requirements.

All substitute parts maintain the required 120V reverse standoff voltage, 193V clamping voltage, DO-214AB package format, and single bidirectional channel configuration. All listed parts are RoHS3 compliant and carry appropriate regulatory certifications.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with lower peak pulse current than the original CD214L-T120CALF?

A: Substitution with lower current ratings (7.8-7.9A versus 15.6A) is only acceptable if your circuit's transient energy profile does not exceed the lower part's specifications. The clamping voltage and reverse standoff voltage must remain at 120V and 193V respectively. Verify your application's actual peak pulse current requirement before selecting a lower-rated alternative.

Q: Are all substitute parts pin-compatible with the CD214L-T120CALF?

A: Yes. All listed substitute parts use the DO-214AB (SMC) package format with identical pinout and footprint. No PCB layout modifications are required for mechanical compatibility.

Q: What is the difference between the SMLJ and SMDJ series?

A: Both series maintain identical voltage specifications (120V VWM, 193V clamping) and current ratings (15.6A) for the 120CA variants. The primary differences are manufacturer and packaging options. SMLJ120CA is supplied by Bourns Inc., while SMDJ120CA is supplied by Alpha & Omega Semiconductor Inc. Selection between these should be based on supply chain availability and preferred supplier qualification.

Q: Can I use the 5.0SMDJ120CA with higher current rating as a direct replacement?

A: Yes. The 5.0SMDJ120CA maintains the required 120V reverse standoff and 193V clamping voltages with the same DO-214AB package. The higher 26A peak pulse current and 5kW power dissipation provide enhanced protection margin and are electrically compatible with circuits designed for the original 15.6A / 3kW part.

Q: What compliance certifications apply to these substitute parts?

A: All listed substitute parts are RoHS3 compliant. Most parts carry REACH compliance status. Specific ECCN and HTSUS classifications are provided in the detailed specifications for export and tariff purposes.

Q: Does operating temperature range affect substitution suitability?

A: Operating temperature range affects long-term reliability in extreme thermal environments. The original CD214L-T120CALF operates from -55°C to 150°C. Substitutes with extended ranges (to 175°C) provide additional thermal margin but are not required for standard -55°C to 150°C applications. Select based on your specific thermal environment requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message