CD214C-T120CALF Equivalent & Substitute Parts

Part Overview

The CD214C-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 193V maximum clamping voltage and 7.9A peak pulse current capability in the DO-214AB (SMC) package. The part is currently obsolete, making equivalent substitutes necessary for ongoing design support and production requirements.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	120V
Voltage - Breakdown (Min)	133V
Voltage - Clamping (Max) @ Ipp	193V
Current - Peak Pulse (10/1000µs)	7.9A
Power - Peak Pulse	1500W
Package / Case	DO-214AB, SMC
Operating Temperature Range	-55°C ~ 150°C (TJ)
Type	Zener
Bidirectional Channels	1
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution for the CD214C-T120CALF is determined by strict electrical and mechanical parameter matching:

Critical Matching Parameters:

Voltage - Reverse Standoff: 120V (±tolerance)
Voltage - Clamping (Max) @ Ipp: 193V
Package / Case: DO-214AB, SMC
Bidirectional Channels: 1
Type: Zener
Mounting Type: Surface Mount

Substitute parts are grouped into two categories:

Direct Equivalents (Category 1): Parts with identical peak pulse current (7.9A ±tolerance) and matching power dissipation (1500W). These provide pin-for-pin and functional equivalence.

Higher-Performance Alternatives (Category 2): Parts with increased peak pulse current (26A) and higher power dissipation (5000W) while maintaining identical voltage parameters and package. These offer enhanced transient protection capability within the same form factor.

Parameter Comparison

Part Number	Manufacturer	VWM (V)	VBR (V)	VC (V)	Ipp (A)	Power (W)	Package	Temp Range (°C)	Status
CD214C-T120CALF	Bourns Inc.	120	133	193	7.9	1500	DO-214AB	-55 ~ 150	Obsolete
SMCJ120CA	Fairchild Semiconductor	120	133	193	7.9	1500	DO-214AB	-55 ~ 150	Active
SMCJ120CA-TP	Micro Commercial Co	120	133	193	7.8	1500	DO-214AB	-55 ~ 175	Active
SMCJ120CA-HRA	Littelfuse Inc.	120	133	193	7.8	1500	DO-214AB	-65 ~ 150	Active
SMCJ120CA-HRAT7	Littelfuse Inc.	120	133	193	7.8	1500	DO-214AB	-65 ~ 150	Active
5.0SMDJ120CA	MDE Semiconductor Inc	120	133	193	26	5000	DO-214AB	-55 ~ 150	Active
5.0SMDJ120CA-T7	Littelfuse Inc.	120	133	193	26	5000	DO-214AB	-65 ~ 150	Active
5.0SMLJ120CA-TP	Micro Commercial Co	120	133	193	26	5000	DO-214AB	-55 ~ 175	Active

Engineering Selection Recommendations

For Direct Replacement (Identical Performance):

SMCJ120CA (Fairchild Semiconductor) provides the most direct equivalent with matching electrical specifications and active product status. This part maintains identical peak pulse current and power dissipation characteristics.

SMCJ120CA-TP (Micro Commercial Co) and SMCJ120CA-HRA (Littelfuse Inc.) are functionally equivalent alternatives with extended operating temperature ranges (-55°C to 175°C and -65°C to 150°C respectively), offering improved thermal performance margins in demanding environments.

SMCJ120CA-HRAT7 (Littelfuse Inc.) provides the same electrical performance as SMCJ120CA-HRA with tape and reel packaging.

For Enhanced Protection (Higher Current Capability):

5.0SMDJ120CA (MDE Semiconductor Inc), 5.0SMDJ120CA-T7 (Littelfuse Inc.), and 5.0SMLJ120CA-TP (Micro Commercial Co) offer 26A peak pulse current and 5000W power dissipation while maintaining identical voltage parameters and DO-214AB packaging. These parts provide superior transient suppression capability for applications requiring enhanced overvoltage protection margins.

All substitute parts are RoHS3 compliant and carry ECCN EAR99 classification matching the original component.

Frequently Asked Questions (FAQ)

Q: Can SMCJ120CA directly replace CD214C-T120CALF?

A: Yes. SMCJ120CA matches all critical electrical parameters: 120V reverse standoff, 193V clamping voltage, 7.9A peak pulse current, and DO-214AB package. The part is active and widely available.

Q: What is the difference between direct equivalents and higher-performance alternatives?

A: Direct equivalents (SMCJ120CA series) maintain 7.9A peak pulse current and 1500W power dissipation. Higher-performance alternatives (5.0SMDJ and 5.0SMLJ series) provide 26A peak pulse current and 5000W power dissipation. Both groups maintain identical voltage specifications and packaging, but higher-performance parts offer greater transient suppression capability.

Q: Are there temperature range differences between substitutes?

A: Yes. Most SMCJ120CA variants operate -55°C to 150°C. SMCJ120CA-TP extends to 175°C. Littelfuse SMCJ-HRA and SMDJ variants extend the lower limit to -65°C. Select based on your application's thermal requirements.

Q: Do all substitutes use the same DO-214AB package?

A: Yes. All listed substitutes use DO-214AB (SMC) surface mount packaging, ensuring mechanical and footprint compatibility with the original design.

Q: What compliance certifications apply to these substitutes?

A: All substitute parts are RoHS3 compliant. REACH status varies: Fairchild SMCJ120CA is REACH Affected; all other substitutes are REACH Unaffected. Verify REACH compliance requirements for your specific application.

Q: Which substitute offers the best availability?

A: SMCJ120CA (Fairchild Semiconductor) shows the highest inventory at 84,300 pieces. SMCJ120CA-TP (Micro Commercial Co) provides 6,741 pieces with extended temperature range.

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