CD214C-T90CALF Equivalent & Substitute Parts

Part Overview

The CD214C-T90CALF is a transient voltage suppressor (TVS) diode manufactured by Bourns Inc., designed for general-purpose overvoltage protection in surface mount applications. This bidirectional Zener diode operates with a 90V reverse standoff voltage and 146V maximum clamping voltage, delivering 10.3A peak pulse current in a compact DO-214AB (SMC) package. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for continued circuit protection functionality.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	90V
Voltage - Breakdown (Min)	100V
Voltage - Clamping (Max) @ Ipp	146V
Current - Peak Pulse (10/1000µs)	10.3A
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 eligibility for the CD214C-T90CALF is determined by strict equivalence across the following critical parameters:

Direct Equivalence Criteria:

Voltage - Reverse Standoff (Typ): 90V
Voltage - Breakdown (Min): 100V
Voltage - Clamping (Max) @ Ipp: 146V
Current - Peak Pulse (10/1000µs): 10.3A
Power - Peak Pulse: 1500W
Package / Case: DO-214AB, SMC
Type: Zener
Bidirectional Channels: 1
Mounting Type: Surface Mount

Direct Equivalents maintain all electrical parameters and package specifications without deviation. These parts are pin-compatible and functionally identical for circuit replacement.

Similar Parts share the same voltage ratings and package but differ in peak pulse current (34.3A) and power dissipation (5000W), representing higher-rated alternatives suitable only when circuit design permits increased current handling capacity.

Parameter Comparison

Part Number	Manufacturer	Status	VWM (90V)	VBR (Min)	VC (Max)	Ipp (10.3A)	Power	Temp Range	Package
CD214C-T90CALF	Bourns Inc.	Obsolete	90V	100V	146V	10.3A	1500W	-55°C ~ 150°C	DO-214AB
SMCJ90CA	Fairchild Semiconductor	Active	90V	100V	146V	10.3A	1500W	-55°C ~ 150°C	DO-214AB
SMCJ90CA-TP	Micro Commercial Co	Active	90V	100V	146V	10.3A	1500W	-55°C ~ 175°C	DO-214AB
SMCJ90CA-HR	Littelfuse	Active	90V	100V	146V	10.3A	1500W	-65°C ~ 150°C	DO-214AB
SMCJ90CA-HRA	Littelfuse Inc.	Active	90V	100V	146V	10.3A	1500W	-65°C ~ 150°C	DO-214AB
SMCJ90CA-HRAT7	Littelfuse	Active	90V	100V	146V	10.3A	1500W	-65°C ~ 150°C	DO-214AB
5.0SMLJ90CA-TP	Micro Commercial Co	Active	90V	100V	146V	34.3A	5000W	-55°C ~ 175°C	DO-214AB
5.0SMDJ90CA	MDE Semiconductor Inc	Active	90V	100V	146V	34.3A	5000W	-55°C ~ 150°C	DO-214AB

Engineering Selection Recommendations

Primary Recommendation - Direct Equivalents:

SMCJ90CA (Fairchild Semiconductor) is the preferred direct replacement. This part maintains complete electrical and thermal equivalence with identical voltage ratings, peak pulse current, and power dissipation. Active product status ensures long-term availability and supply chain stability. ROHS3 compliance and EAR99 classification match the original specification.

SMCJ90CA-TP (Micro Commercial Co) and SMCJ90CA-HR (Littelfuse) provide equivalent alternatives with extended operating temperature ranges (-55°C to 175°C and -65°C to 150°C respectively), offering enhanced thermal performance for applications requiring broader temperature operation.

Secondary Recommendation - Higher-Rated Alternatives:

5.0SMLJ90CA-TP and 5.0SMDJ90CA are suitable only when circuit design accommodates increased peak pulse current (34.3A) and power dissipation (5000W). These parts maintain identical voltage protection characteristics but provide enhanced transient energy absorption capacity. Selection requires confirmation that the application circuit can utilize the higher current rating without adverse effects.

Frequently Asked Questions (FAQ)

Q: Can SMCJ90CA directly replace CD214C-T90CALF without circuit modification?

A: Yes. SMCJ90CA is a direct electrical and mechanical equivalent with identical voltage ratings (90V standoff, 146V clamp), peak pulse current (10.3A), power dissipation (1500W), and DO-214AB package. No circuit redesign is required.

Q: What is the difference between direct equivalents and similar parts?

A: Direct equivalents (SMCJ90CA, SMCJ90CA-TP, SMCJ90CA-HR) maintain all electrical specifications including 10.3A peak pulse current and 1500W power rating. Similar parts (5.0SMLJ90CA-TP, 5.0SMDJ90CA) provide higher current (34.3A) and power (5000W) ratings. Similar parts are only suitable if the circuit design permits increased current handling.

Q: Are all substitute parts ROHS3 compliant?

A: All listed substitute parts are ROHS3 compliant and REACH unaffected or affected as specified in their individual certifications, maintaining regulatory compliance with the original CD214C-T90CALF.

Q: Does operating temperature range affect part selection?

A: Operating temperature range differences exist among equivalents. SMCJ90CA-TP extends to 175°C, while SMCJ90CA-HR and SMCJ90CA-HRA extend to -65°C minimum. Select based on your circuit's thermal requirements. Standard SMCJ90CA operates -55°C to 150°C, matching the original specification.

Q: Can I use 5.0SMLJ90CA-TP as a drop-in replacement?

A: Electrically, yes, for voltage protection function. However, the higher peak pulse current (34.3A vs 10.3A) and power rating (5000W vs 1500W) mean it is not a true drop-in replacement. Use only if your circuit design accommodates or benefits from the increased current capacity.

Q: What packaging options are available?

A: All substitute parts use DO-214AB (SMC) surface mount package, identical to the original CD214C-T90CALF. Packaging variations (Bulk vs Tape & Reel) affect procurement and handling but not electrical performance.

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