CD214B-T22CALF Equivalent & Substitute Parts

Part Overview

The CD214B-T22CALF 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 22V reverse standoff voltage with 35.5V maximum clamping voltage and 16.9A peak pulse current capability in the DO-214AA (SMB) 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.

Substiute Parts

CD214B-T22CALF

Bourns Inc.In Stock: 886CD214B-T22CALF Datasheet

Current PartRFQ

SMBJ22CA

MDDIn Stock: 25457SMBJ22CA Datasheet

DirectRFQ

SMBJ22CA

MDDIn Stock: 25457SMBJ22CA Datasheet

DirectRFQ

SMBJ22CA

MDDIn Stock: 25457SMBJ22CA Datasheet

DirectRFQ

SMBJ22CA

MDDIn Stock: 25457SMBJ22CA Datasheet

DirectRFQ

SMBJ22CA-TP

Micro Commercial CoIn Stock: 4289SMBJ22CA-TP Datasheet

SimilarRFQ

SMBJ22CA-TR

STMicroelectronicsIn Stock: 15136SMBJ22CA-TR Datasheet

SimilarRFQ

SZP6SMB27CAT3G

Littelfuse Inc.In Stock: 3380SZP6SMB27CAT3G Datasheet

SimilarRFQ

TPSMB27CA

Littelfuse Inc.In Stock: 25252TPSMB27CA Datasheet

SimilarRFQ

TV06B220JB-G

Comchip TechnologyIn Stock: 899TV06B220JB-G Datasheet

SimilarRFQ

TV06B220JB-HF

Comchip TechnologyIn Stock: 1013TV06B220JB-HF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD214B-T22CALF is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 22V
• Voltage - Breakdown (Min): 24.4V
• Voltage - Clamping (Max) @ Ipp: 35.5V
• Current - Peak Pulse (10/1000µs): 16.9A minimum
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Bidirectional Channels: 1

Substitute parts are categorized into two groups:

Direct Equivalents (Identical Specifications): Parts matching all critical electrical parameters with identical clamping voltage and peak pulse current specifications.

Similar Equivalents (Acceptable Variance): Parts with voltage ratings within the same protection class (22V standoff) but with minor variations in clamping voltage or peak pulse current that remain within acceptable operating margins for the application.

Parameter Comparison

Engineering Selection Recommendations

Preferred Direct Substitutes:

SMBJ22CA (MDD), SMBJ22CA-TP (Micro Commercial Co), and TV06B220JB-HF (Comchip Technology) are direct electrical equivalents with identical 22V standoff voltage, 35.5V clamping voltage, and 16.9A peak pulse current. All three are active products with ROHS3 compliance and MSL 1 rating. SMBJ22CA-TP offers the widest operating temperature range (-55 to 175°C), providing enhanced thermal margin for demanding applications.

SMBJ22CA-TR (STMicroelectronics) provides equivalent protection with marginally higher peak pulse current (17.7A), maintaining full compatibility while offering additional current headroom. This part is active with ROHS3 compliance and identical temperature range to the original.

Alternative Substitutes:

SZP6SMB27CAT3G and TPSMB27CA (both Littelfuse Inc.) operate at a higher voltage class (23.1V standoff, 37.5V clamping) and are automotive-grade with AEC-Q101 qualification. These parts provide enhanced overvoltage protection margin and extended temperature range (-65 to 175°C for TPSMB27CA) but are suitable only for applications where the higher clamping voltage does not compromise circuit protection objectives.

All recommended substitutes maintain DO-214AA (SMB) package compatibility, surface mount configuration, and ROHS3 compliance with MSL 1 moisture sensitivity rating.

Frequently Asked Questions (FAQ)

Q: Can SMBJ22CA directly replace CD214B-T22CALF?

A: Yes. SMBJ22CA matches all critical electrical parameters: 22V reverse standoff voltage, 35.5V clamping voltage, 16.9A peak pulse current, and 600W peak pulse power. Both use DO-214AA (SMB) surface mount packaging. The primary difference is product status: CD214B-T22CALF is obsolete while SMBJ22CA is active.

Q: What is the difference between SMBJ22CA-TP and SMBJ22CA-TR?

A: Both are direct electrical equivalents with identical voltage and clamping specifications. SMBJ22CA-TP (Micro Commercial Co) operates from -55 to 175°C, while SMBJ22CA-TR (STMicroelectronics) operates from -55 to 150°C. SMBJ22CA-TR provides slightly higher peak pulse current (17.7A vs. 16.9A). Selection depends on thermal requirements and packaging preference (Tape & Reel vs. Cut Tape & Digi-Reel).

Q: Why are SZP6SMB27CAT3G and TPSMB27CA listed as alternatives?

A: These parts operate at a higher voltage class (23.1V standoff, 37.5V clamping) compared to the original 22V/35.5V specification. They are suitable substitutes only when circuit design permits higher clamping voltage. Both are automotive-grade with AEC-Q101 qualification and extended temperature range, making them appropriate for demanding environments where the voltage margin is acceptable.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification and MSL 1 (Unlimited) moisture sensitivity rating, matching the environmental and regulatory status of the original CD214B-T22CALF.

Q: What packaging options are available for substitutes?

A: All substitute parts use DO-214AA (SMB) surface mount packaging, maintaining mechanical and thermal compatibility with the original design. Packaging format variations (Tape & Reel, Cut Tape & Digi-Reel) do not affect electrical performance or PCB mounting.

Q: Can I use TV06B220JB-G instead of TV06B220JB-HF?

A: Both Comchip Technology parts are electrically identical with 22V standoff, 35.5V clamping, and 16.9A peak pulse current. The primary difference is the suffix designation (G vs. HF), which typically indicates manufacturing or packaging variation. Both are active products suitable for direct substitution of CD214B-T22CALF.