CD214B-T9.0ALF Equivalent & Substitute Parts

Part Overview

The CD214B-T9.0ALF is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Bourns Inc., designed for general-purpose overvoltage protection in surface mount applications. Specified with a 9V reverse standoff voltage, 15.4V maximum clamping voltage, and 39A peak pulse current capability in the DO-214AA (SMB) package, this component is classified as obsolete. Due to its discontinued status, equivalent active alternatives from other manufacturers are necessary to maintain design continuity and ensure ongoing component availability for production and repair applications.

Substiute Parts

CD214B-T9.0ALF

Bourns Inc.In Stock: 998CD214B-T9.0ALF Datasheet

Current PartRFQ

SMBJ9.0A

Taiwan Semiconductor CorporationIn Stock: 3195SMBJ9.0A Datasheet

DirectRFQ

SMBJ9.0A

Taiwan Semiconductor CorporationIn Stock: 3195SMBJ9.0A Datasheet

DirectRFQ

SMBJ10A

MDDIn Stock: 113201SMBJ10A Datasheet

SimilarRFQ

SMBJ9V0A

Taiwan Semiconductor CorporationIn Stock: 7015SMBJ9V0A Datasheet

SimilarRFQ

SMBSAC8.5-TP

Micro Commercial CoIn Stock: 835SMBSAC8.5-TP Datasheet

SimilarRFQ

TV06B9V0J-G

Comchip TechnologyIn Stock: 960TV06B9V0J-G Datasheet

SimilarRFQ

TV06B9V0J-HF

Comchip TechnologyIn Stock: 1103TV06B9V0J-HF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD214B-T9.0ALF is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - Reverse Standoff (Typ): 9V
• Voltage - Clamping (Max) @ Ipp: 15.4V
• Current - Peak Pulse (10/1000µs): ≥39A
• Package / Case: DO-214AA (SMB)
• Type: Unidirectional Zener
• Mounting Type: Surface Mount

Substitute Classification:

Direct Equivalents (identical electrical specifications and active product status):

• SMBJ9.0A (Taiwan Semiconductor Corporation)
• SMBJ9V0A (Taiwan Semiconductor Corporation)
• TV06B9V0J-G (Comchip Technology)
• TV06B9V0J-HF (Comchip Technology)

Similar Alternatives (minor parameter variations within acceptable tolerance):

• SMBJ10A (MDD) — higher standoff voltage (10V) and clamping voltage (17V)
• SMBSAC8.5-TP (Micro Commercial Co) — lower standoff voltage (8.5V) and clamping voltage (14V), bidirectional configuration

All substitute parts maintain DO-214AA (SMB) surface mount packaging, unidirectional Zener topology, and general-purpose application suitability.

Parameter Comparison

Engineering Selection Recommendations

Preferred Direct Substitutes:

SMBJ9.0A and SMBJ9V0A from Taiwan Semiconductor Corporation are the primary recommended alternatives. Both parts maintain identical electrical specifications to the CD214B-T9.0ALF, including 9V reverse standoff voltage, 15.4V clamping voltage, and equivalent peak pulse current ratings. Both are active products with ROHS3 compliance and MSL 1 rating, ensuring long-term availability and regulatory compliance.

TV06B9V0J-G and TV06B9V0J-HF from Comchip Technology provide equivalent electrical performance with 38.96A peak pulse current and identical voltage ratings. These parts are active and ROHS3 compliant, suitable for direct replacement in existing designs.

Alternative Substitutes with Parameter Variations:

SMBJ10A (MDD) operates at a higher voltage rating (10V standoff, 17V clamping) and is suitable only for applications where the higher voltage threshold does not compromise circuit protection requirements. This part is active and ROHS3 compliant.

SMBSAC8.5-TP (Micro Commercial Co) features a lower voltage rating (8.5V standoff, 14V clamping) and bidirectional configuration. This part is suitable only for applications requiring bidirectional protection or where the lower voltage threshold is acceptable. Operating temperature extends to 175°C, providing enhanced thermal performance.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with modern manufacturing and storage requirements. Selection should prioritize active product status to ensure sustained component availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can SMBJ9.0A directly replace CD214B-T9.0ALF without circuit modification?

A: Yes. SMBJ9.0A maintains identical reverse standoff voltage (9V), clamping voltage (15.4V), and peak pulse current (40A, exceeding the original 39A specification). Both use DO-214AA (SMB) packaging and unidirectional Zener topology. No circuit modification is required.

Q: What is the difference between SMBJ9.0A and SMBJ9V0A?

A: Both parts are manufactured by Taiwan Semiconductor Corporation with identical electrical specifications: 9V standoff, 15.4V clamping, and 39-40A peak pulse current. The primary difference is packaging format: SMBJ9.0A is available in standard packaging, while SMBJ9V0A is supplied in Tape & Reel format. Electrical performance is equivalent.

Q: Why are TV06B9V0J-G and TV06B9V0J-HF listed as separate alternatives?

A: Both Comchip Technology parts (TV06B9V0J-G and TV06B9V0J-HF) provide identical electrical specifications and DO-214AA packaging. The designation difference reflects internal Comchip product line variations. Both are active products suitable for direct substitution.

Q: Can SMBJ10A be used as a substitute?

A: SMBJ10A operates at higher voltage thresholds (10V standoff, 17V clamping) compared to the original specification (9V standoff, 15.4V clamping). Substitution is possible only if the circuit design accommodates the higher voltage rating without compromising protection effectiveness or component reliability.

Q: Is SMBSAC8.5-TP compatible with the original design?

A: SMBSAC8.5-TP features lower voltage ratings (8.5V standoff, 14V clamping) and bidirectional configuration, differing from the original unidirectional topology. Substitution requires circuit analysis to confirm that lower voltage thresholds provide adequate protection. Bidirectional operation may introduce unintended protection paths in unidirectional circuit designs.

Q: What does "obsolete" status mean for the CD214B-T9.0ALF?

A: Obsolete status indicates that Bourns Inc. has discontinued manufacturing and distribution of this part. Existing inventory may be available from authorized distributors, but long-term supply cannot be guaranteed. Active substitute parts ensure sustained component availability for ongoing production and maintenance requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, ensuring compatibility with modern manufacturing standards and regulatory requirements across global markets.

Q: What is the significance of MSL 1 (Unlimited) rating?

A: MSL 1 rating indicates unlimited shelf life without moisture-related degradation concerns. All substitute parts with MSL 1 rating can be stored and handled using standard industrial practices without specialized moisture control measures, matching the original part's storage requirements.