CD214B-T26CALF Equivalent & Substitute Parts

Part Overview

The CD214B-T26CALF is a 26V Transient Voltage Suppressor (TVS) diode manufactured by Bourns Inc., packaged in DO-214AA (SMB) surface mount format. This bidirectional Zener diode is designed for general-purpose transient voltage protection applications with a peak pulse current rating of 14.2A and 600W peak pulse power dissipation. The part is currently obsolete, making identification of equivalent and substitute components necessary for ongoing design support, repairs, and production continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	CD214B-T26CALF
Manufacturer	Bourns Inc.
Category	Transient Voltage Suppressors (TVS)
Package / Case	DO-214AA, SMB
Voltage - Reverse Standoff (Typ)	26V
Voltage - Breakdown (Min)	28.9V
Voltage - Clamping (Max) @ Ipp	42.1V
Current - Peak Pulse (10/1000µs)	14.2A
Power - Peak Pulse	600W
Operating Temperature Range	-55°C ~ 150°C (TJ)
Type	Zener
Bidirectional Channels	1
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the CD214B-T26CALF is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - Reverse Standoff (Typ): 26V
Voltage - Clamping (Max) @ Ipp: 42.1V
Current - Peak Pulse (10/1000µs): 14.2A minimum
Power - Peak Pulse: 600W
Package / Case: DO-214AA, SMB (surface mount)
Bidirectional Channels: 1
Type: Zener

Direct Substitutes maintain all critical electrical parameters within the specified tolerances and identical package format. These parts are functionally interchangeable without circuit modification.

Similar Substitutes share the same package and general application category but differ in one or more electrical parameters (voltage rating, peak pulse current, or clamping voltage). These require circuit-level evaluation to confirm compatibility with the specific application requirements.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Breakdown (Min)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Operating Temperature	Package	Product Status
CD214B-T26CALF	Bourns Inc.	26V	28.9V	42.1V	14.2A	600W	-55°C ~ 150°C	DO-214AA, SMB	Obsolete
SMBJ26CA	EVVO Semi	26V	28.9V	42.1V	14.3A	600W	-65°C ~ 150°C	DO-214AA, SMB	Active
SMBJ26CA-TP	Micro Commercial Co	26V	28.9V	42.1V	14.2A	600W	-55°C ~ 175°C	DO-214AA, SMB	Active
SMBJ26CA-TR	STMicroelectronics	26V	28.9V	42.1V	14.9A	600W	-55°C ~ 150°C	DO-214AA, SMB	Active
SMBJ24CA	MDD	24V	26.7V	38.9V	15.5A	600W	-50°C ~ 150°C	DO-214AA, SMB	Active
SMBJ30CA	MDD	30V	33.3V	48.4V	12.4A	600W	-50°C ~ 150°C	DO-214AA, SMB	Active

Engineering Selection Recommendations

Direct Substitutes (Recommended for Replacement):

SMBJ26CA (EVVO Semi), SMBJ26CA-TP (Micro Commercial Co), and SMBJ26CA-TR (STMicroelectronics) are direct electrical equivalents to the CD214B-T26CALF. All three maintain the 26V reverse standoff voltage, 42.1V clamping voltage, and 600W peak pulse power rating. Peak pulse current ratings range from 14.2A to 14.9A, all within acceptable tolerance of the original 14.2A specification. All direct substitutes are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, matching the original part's compliance profile. These parts are currently in active production status with substantial inventory availability.

SMBJ26CA-TP offers the widest operating temperature range (-55°C ~ 175°C), providing additional thermal margin for demanding applications. SMBJ26CA-TR is manufactured by STMicroelectronics under the SMBJ/TRANSIL™ series designation, offering established supply chain continuity for high-volume applications.

Similar Substitutes (Application-Dependent):

SMBJ24CA (MDD) and SMBJ30CA (MDD) are similar TVS diodes in the same DO-214AA package but with different voltage ratings. SMBJ24CA operates at 24V reverse standoff with 38.9V clamping voltage and 15.5A peak pulse current. SMBJ30CA operates at 30V reverse standoff with 48.4V clamping voltage and 12.4A peak pulse current. These parts are suitable only when the application circuit can tolerate the specified voltage deviation from the original 26V design point. Both are ROHS3 compliant and currently in active production.

Frequently Asked Questions (FAQ)

Q: Can I use SMBJ26CA as a direct replacement for CD214B-T26CALF?

A: Yes. SMBJ26CA maintains identical voltage ratings (26V reverse standoff, 42.1V clamping) and equivalent peak pulse current (14.3A vs. 14.2A). Both are packaged in DO-214AA (SMB) format. The part is ROHS3 compliant and currently in active production with high inventory availability.

Q: What is the difference between SMBJ26CA, SMBJ26CA-TP, and SMBJ26CA-TR?

A: All three are 26V TVS diodes with identical electrical specifications. SMBJ26CA-TP (Micro Commercial Co) offers the widest operating temperature range (-55°C ~ 175°C). SMBJ26CA-TR (STMicroelectronics) is part of the established SMBJ/TRANSIL™ series. SMBJ26CA (EVVO Semi) provides the lowest operating temperature floor at -65°C. Selection depends on thermal requirements and preferred supplier relationships.

Q: Can I substitute SMBJ24CA or SMBJ30CA for the CD214B-T26CALF?

A: These are not direct substitutes. SMBJ24CA operates at 24V (2V below the original specification) and SMBJ30CA operates at 30V (4V above). Substitution requires circuit-level analysis to confirm the application can tolerate the voltage deviation. Use these parts only when the protected circuit design permits the alternative voltage rating.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, matching the original CD214B-T26CALF compliance profile. All carry MSL 1 (Unlimited) moisture sensitivity ratings.

Q: What packaging options are available for the substitute parts?

A: All substitute parts are supplied in DO-214AA (SMB) surface mount package format, identical to the original. SMBJ26CA and SMBJ26CA-TR are available in Cut Tape (CT) and Digi-Reel® packaging. SMBJ26CA-TP is supplied in Tape & Reel (TR) format. SMBJ24CA and SMBJ30CA are available in standard packaging configurations.

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