CD214B-T11CALF Equivalent & Substitute Parts

Part Overview

The CD214B-T11CALF is a transient voltage suppressor (TVS) diode manufactured by Bourns Inc., designed for general-purpose overvoltage protection in surface mount applications. This component features an 11V reverse standoff voltage with an 18.2V maximum clamping voltage and 33A peak pulse current capability in a DO-214AA (SMB) package. The part is currently obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements.

Substiute Parts

CD214B-T11CALF

Bourns Inc.In Stock: 1118CD214B-T11CALF Datasheet

Current PartRFQ

SMBJ11CA

Fairchild SemiconductorIn Stock: 69014SMBJ11CA Datasheet

DirectRFQ

SMBJ11CA

Fairchild SemiconductorIn Stock: 69014SMBJ11CA Datasheet

DirectRFQ

SMBJ11CA

Fairchild SemiconductorIn Stock: 69014SMBJ11CA Datasheet

DirectRFQ

SMBJ10CA

MDDIn Stock: 443130SMBJ10CA Datasheet

SimilarRFQ

SMBJ10CA/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 986SMBJ10CA/54 Datasheet

SimilarRFQ

SMBJ11CA-TP

Micro Commercial CoIn Stock: 3301SMBJ11CA-TP Datasheet

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TV06B110JB-HF

Comchip TechnologyIn Stock: 1179TV06B110JB-HF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the CD214B-T11CALF is determined by strict electrical and mechanical parameter matching within the TVS diode category. The following criteria establish valid equivalency:

Primary Matching Criteria:

• Voltage - Reverse Standoff (Typ): 11V
• Voltage - Clamping (Max) @ Ipp: 18.2V
• Current - Peak Pulse (10/1000µs): 33A
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Type: Zener, Bidirectional (1 channel)

Substitute Categories:

Direct Equivalents maintain all primary electrical parameters and identical package specifications. These parts are interchangeable without circuit modification.

Similar Alternatives share the same package and mounting type but may have minor variations in voltage or current ratings within acceptable tolerance ranges for general-purpose protection applications. These require verification of circuit-specific requirements.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Recommended for Pin-Compatible Replacement):

SMBJ11CA (Fairchild Semiconductor) and SMBJ11CA-TP (Micro Commercial Co) are direct electrical equivalents with identical voltage and current ratings. Both maintain the 11V reverse standoff and 18.2V clamping specifications. SMBJ11CA-TP offers extended operating temperature range (-55°C to 175°C) compared to the original specification (-55°C to 150°C), providing additional thermal margin. Both are ROHS3 compliant and carry MSL 1 rating.

TV06B110JB-HF (Comchip Technology) provides equivalent electrical performance with 32.97A peak pulse current, functionally matching the 33A specification within measurement tolerance. This part is ROHS3 compliant with MSL 1 rating and is actively produced.

Similar Alternatives (Evaluate Circuit Requirements):

SMBJ10CA (MDD) and SMBJ10CA/54 (Vishay) feature reduced voltage ratings (10V reverse standoff, 17V clamping) with slightly higher peak pulse current (35.3A). These parts are suitable only where the lower voltage threshold is acceptable for the application. SMBJ10CA is ROHS3 compliant; SMBJ10CA/54 is RoHS non-compliant and should be avoided in regulated environments.

Compliance Considerations:

All recommended direct substitutes maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage requirements. The SMBJ10CA/54 variant from Vishay carries RoHS non-compliance status and should be excluded from new designs subject to RoHS regulations.

Frequently Asked Questions (FAQ)

Q: Can SMBJ11CA be used as a direct replacement for CD214B-T11CALF?

A: Yes. SMBJ11CA matches all primary electrical parameters: 11V reverse standoff, 18.2V clamping voltage, 33A peak pulse current, and DO-214AA package. The part is actively produced by Fairchild Semiconductor and is ROHS3 compliant.

Q: What is the difference between SMBJ11CA and SMBJ11CA-TP?

A: Both parts are electrically identical with matching voltage and current ratings. The primary difference is packaging: SMBJ11CA is supplied in bulk, while SMBJ11CA-TP is supplied in tape and reel format. SMBJ11CA-TP also specifies an extended operating temperature range of -55°C to 175°C versus -55°C to 150°C for standard variants.

Q: Can SMBJ10CA replace CD214B-T11CALF?

A: SMBJ10CA is a similar alternative, not a direct equivalent. It features a lower 10V reverse standoff voltage and 17V clamping voltage compared to the original 11V and 18.2V specifications. Substitution is valid only if circuit design tolerates these reduced voltage thresholds. The higher peak pulse current (35.3A) provides additional margin.

Q: Are all substitute parts ROHS3 compliant?

A: Direct substitutes SMBJ11CA, SMBJ11CA-TP, and TV06B110JB-HF are ROHS3 compliant. SMBJ10CA (MDD) is ROHS3 compliant. SMBJ10CA/54 (Vishay) is RoHS non-compliant and should not be used in regulated applications.

Q: What does MSL 1 rating mean for these TVS diodes?

A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life without moisture bake requirements. These components can be stored indefinitely without special moisture control measures, simplifying inventory management and reducing production constraints.

Q: Is the DO-214AA package identical across all substitute parts?

A: Yes. All substitute parts use the DO-214AA (SMB) surface mount package with identical mechanical and electrical interface specifications, ensuring direct PCB compatibility without layout modifications.

Q: Why is TV06B110JB-HF rated at 32.97A instead of 33A?

A: The 32.97A specification represents the measured peak pulse current for the Comchip variant. This value is functionally equivalent to the 33A rating within standard measurement tolerance and does not affect circuit performance in general-purpose protection applications.