CD214B-T75CALF Equivalent & Substitute Parts

Part Overview

The CD214B-T75CALF 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 75V reverse standoff voltage with 121V maximum clamping voltage and 4.9A peak pulse current capability in the SMB (DO-214AA) package. The part is currently obsolete, making equivalent substitutes necessary for ongoing design support and component procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	CD214B-T75CALF
Manufacturer	Bourns Inc.
Category	Transient Voltage Suppressors (TVS)
Package / Case	DO-214AA, SMB
Voltage - Reverse Standoff (Typ)	75V
Voltage - Breakdown (Min)	83.3V
Voltage - Clamping (Max) @ Ipp	121V
Current - Peak Pulse (10/1000µs)	4.9A
Power - Peak Pulse	600W
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

Substitution for the CD214B-T75CALF is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - Reverse Standoff (Typ): 75V
Voltage - Clamping (Max) @ Ipp: 121V
Voltage - Breakdown (Min): 83.3V
Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount
Bidirectional Channels: 1

Direct Equivalents maintain all primary electrical specifications (75V standoff, 121V clamping) with identical package and mounting characteristics. These parts are functionally interchangeable with the original CD214B-T75CALF.

Similar Alternatives share the same package, mounting type, and general voltage class but may have variations in peak pulse current or clamping voltage within acceptable operating ranges. These parts are suitable for applications where the exact electrical specifications are not critical constraints.

Parameter Comparison

Parameter	CD214B-T75CALF (Bourns)	SMBJ75CA (MDD)	SMBJ75CA-TP (Micro Commercial Co)	TV06B750JB-HF (Comchip)	SMBJ64CA (Meritek)
Voltage - Reverse Standoff (Typ)	75V	75V	75V	75V	64V
Voltage - Breakdown (Min)	83.3V	83.3V	83.3V	83.3V	71.1V
Voltage - Clamping (Max) @ Ipp	121V	121V	121V	121V	103V
Current - Peak Pulse (10/1000µs)	4.9A	5.3A	4.9A	4.96A	5.83A
Power - Peak Pulse	600W	600W	600W	600W	600W
Package / Case	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB
Operating Temperature	-55°C ~ 150°C	-50°C ~ 150°C	-55°C ~ 175°C	Not specified	-55°C ~ 150°C
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct Equivalents (Recommended Primary Substitutes):

SMBJ75CA (MDD), SMBJ75CA-TP (Micro Commercial Co), and TV06B750JB-HF (Comchip) are direct electrical equivalents to the CD214B-T75CALF. All three maintain the 75V reverse standoff voltage, 121V clamping voltage, and 600W peak pulse power rating. These parts are in active production status with ROHS3 compliance and MSL 1 rating, ensuring long-term availability and regulatory compliance. SMBJ75CA-TP offers the widest operating temperature range (-55°C ~ 175°C), providing additional thermal margin for demanding applications.

Alternative Substitute (Lower Voltage Class):

SMBJ64CA (Meritek) operates at a lower voltage class with 64V reverse standoff and 103V clamping voltage. This part is suitable only for applications where the lower voltage specifications are acceptable and do not compromise circuit protection requirements. The higher peak pulse current (5.83A) provides additional current handling capability.

Compliance and Availability:

All substitute parts maintain ROHS3 compliance and MSL 1 moisture sensitivity rating, ensuring compatibility with modern manufacturing and storage requirements. SMBJ75CA (MDD) offers the highest inventory availability (45,300 pcs), supporting high-volume procurement needs.

Frequently Asked Questions (FAQ)

Q: Can SMBJ75CA replace CD214B-T75CALF directly?

A: Yes. SMBJ75CA maintains identical electrical specifications (75V standoff, 121V clamping, 600W peak power) and package configuration (DO-214AA, SMB). The part is in active production with ROHS3 compliance.

Q: What is the difference between SMBJ75CA and SMBJ75CA-TP?

A: Both parts share identical electrical specifications. SMBJ75CA-TP offers an extended operating temperature range (-55°C ~ 175°C) compared to SMBJ75CA (-50°C ~ 150°C), providing additional thermal headroom for high-temperature applications.

Q: Is SMBJ64CA a suitable substitute?

A: SMBJ64CA operates at a lower voltage class (64V standoff, 103V clamping) compared to the original specification (75V standoff, 121V clamping). This part is suitable only if the application circuit can tolerate the reduced voltage protection threshold.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 moisture sensitivity rating, meeting current regulatory and manufacturing standards.

Q: What is the package compatibility?

A: All substitute parts use the DO-214AA (SMB) surface-mount package, ensuring direct PCB footprint compatibility with the original CD214B-T75CALF design.

Q: Which substitute offers the best availability?

A: SMBJ75CA (MDD) provides the highest inventory level at 45,300 pcs, supporting immediate procurement for production requirements.

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