CD214C-T48CALF Equivalent & Substitute Parts

Part Overview

The CD214C-T48CALF 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 features a 48V reverse standoff voltage with a 77.4V maximum clamping voltage and 19.4A peak pulse current capability in a DO-214AB (SMC) package. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	CD214C-T48CALF
Manufacturer	Bourns Inc.
Category	Transient Voltage Suppressors (TVS)
Type	Zener
Package / Case	DO-214AB, SMC
Voltage - Reverse Standoff (Typ)	48V
Voltage - Breakdown (Min)	53.3V
Voltage - Clamping (Max) @ Ipp	77.4V
Current - Peak Pulse (10/1000µs)	19.4A
Power - Peak Pulse	1500W (1.5kW)
Operating Temperature	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the CD214C-T48CALF are classified into two categories based on electrical parameter compatibility:

Direct Substitutes (Identical Electrical Performance): Parts that match all critical electrical parameters: 48V reverse standoff voltage, 53.3V minimum breakdown voltage, 77.4V maximum clamping voltage, 19.4A peak pulse current, and 1500W peak pulse power. These parts are pin-compatible and functionally equivalent in the same DO-214AB (SMC) package.

Similar Substitutes (Enhanced or Modified Performance): Parts that maintain the same voltage ratings (48V standoff, 53.3V breakdown, 77.4V clamping) and package form factor but differ in peak pulse current capability and/or power dissipation. These parts provide higher performance margins and may be used where increased transient energy handling is acceptable or beneficial.

The substitution logic is based strictly on the following allowed parameters:

Voltage - Reverse Standoff (Typ): 48V
Voltage - Breakdown (Min): 53.3V
Voltage - Clamping (Max) @ Ipp: 77.4V
Package / Case: DO-214AB, SMC
Mounting Type: Surface Mount
Operating Temperature Range compatibility
RoHS and compliance certifications

Parameter Comparison

Part Number	Manufacturer	Standoff Voltage	Breakdown Voltage	Clamping Voltage	Peak Pulse Current	Peak Pulse Power	Operating Temp	Product Status
CD214C-T48CALF	Bourns Inc.	48V	53.3V	77.4V	19.4A	1500W	-55°C ~ 150°C	Obsolete
SMCJ48CA	Fairchild Semiconductor	48V	53.3V	77.4V	19.4A	1500W	-55°C ~ 150°C	Active
SMCJ48CA-HR	Littelfuse Inc.	48V	53.3V	77.4V	19.4A	1500W	-65°C ~ 150°C	Active
SMDJ48CA	Alpha & Omega Semiconductor Inc.	48V	53.3V	77.4V	38.8A	3000W	-55°C ~ 150°C	Active
SMDJ48CA-T7	Littelfuse	48V	53.3V	77.4V	38.8A	3000W	-65°C ~ 150°C	Active
SMC3K48CA-M3/57	Vishay General Semiconductor - Diodes Division	48V	53.3V	77.4V	38.8A	3000W	-55°C ~ 150°C	Active
5.0SMDJ48CA	MDE Semiconductor Inc	48V	53.3V	77.4V	64.7A	5000W	-55°C ~ 150°C	Active
5.0SMLJ48CA-TP	Micro Commercial Co	48V	53.3V	77.4V	64.7A	5000W	-55°C ~ 175°C	Active
SMCJ48CA-TR	STMicroelectronics	48V	53.3V	100V	100A (8/20µs)	1500W	-55°C ~ 150°C	Active

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): SMCJ48CA (Fairchild Semiconductor) is the primary direct substitute. It maintains all electrical parameters of the CD214C-T48CALF with active product status and ROHS3 compliance. This part is recommended for designs requiring exact electrical equivalence with no performance modifications.

SMCJ48CA-HR (Littelfuse Inc.) provides an alternative direct substitute with extended lower operating temperature range (-65°C vs -55°C), offering improved thermal margin for cold environment applications while maintaining identical electrical performance.

For Enhanced Performance Applications: SMDJ48CA (Alpha & Omega Semiconductor Inc.) and SMDJ48CA-T7 (Littelfuse) double the peak pulse current to 38.8A and power dissipation to 3000W, suitable for applications with higher transient energy requirements. SMDJ48CA-T7 includes extended lower temperature range (-65°C).

SMC3K48CA-M3/57 (Vishay General Semiconductor) offers the same enhanced performance (38.8A, 3000W) with TransZorb® series designation and active product status.

5.0SMDJ48CA (MDE Semiconductor Inc) and 5.0SMLJ48CA-TP (Micro Commercial Co) provide maximum performance with 64.7A peak pulse current and 5000W power dissipation. The 5.0SMLJ48CA-TP variant extends operating temperature to 175°C.

For Modified Clamping Voltage Applications: SMCJ48CA-TR (STMicroelectronics) maintains the 48V standoff voltage but increases clamping voltage to 100V with 100A peak pulse current. This part is suitable only where higher clamping voltage is acceptable in the circuit design.

All recommended substitutes are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental specifications.

Frequently Asked Questions (FAQ)

Q: Can SMCJ48CA directly replace CD214C-T48CALF without circuit modification? A: Yes. SMCJ48CA matches all critical electrical parameters: 48V standoff, 53.3V breakdown, 77.4V clamping voltage, 19.4A peak pulse current, and 1500W power dissipation. Both use DO-214AB (SMC) packaging with identical pinout. No circuit changes are required.

Q: What is the difference between direct substitutes and similar substitutes? A: Direct substitutes (SMCJ48CA, SMCJ48CA-HR) provide identical electrical performance. Similar substitutes (SMDJ48CA, SMC3K48CA-M3/57, 5.0SMDJ48CA, 5.0SMLJ48CA-TP) maintain voltage ratings but increase peak pulse current and power dissipation capabilities. Similar substitutes are backward compatible but provide enhanced transient protection margins.

Q: Why does SMCJ48CA-TR have a different clamping voltage (100V vs 77.4V)? A: SMCJ48CA-TR is a variant with modified clamping characteristics. The 100V clamping voltage makes it unsuitable as a direct replacement unless the circuit design specifically accommodates higher clamping voltage. Use only if circuit analysis confirms compatibility with 100V clamping.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original CD214C-T48CALF specifications.

Q: Which substitute offers the widest operating temperature range? A: 5.0SMLJ48CA-TP (Micro Commercial Co) provides the widest operating temperature range of -55°C to 175°C, compared to the original part's -55°C to 150°C range.

Q: Can I use a higher-power substitute (5.0SMDJ48CA) in place of the original part? A: Yes. Higher-power substitutes are backward compatible. The 5.0SMDJ48CA with 64.7A peak pulse current and 5000W power dissipation will function correctly in circuits designed for the 19.4A, 1500W original part, providing additional transient protection margin.

Q: What packaging options are available for these substitutes? A: All substitute parts use DO-214AB (SMC) surface mount packaging, identical to the original CD214C-T48CALF. Packaging variants (Tape & Reel, Cut Tape, Digi-Reel) are available from different manufacturers but do not affect electrical compatibility.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message