CD214A-T54ALF Equivalent & Substitute Parts

Part Overview

The CD214A-T54ALF is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Bourns Inc., designed for general-purpose overvoltage protection in surface-mount applications. The device features a 54V reverse standoff voltage, 87.1V maximum clamping voltage, and 4.6A peak pulse current capability in a DO-214AC (SMA) package. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

CD214A-T54ALF

Bourns Inc.In Stock: 915CD214A-T54ALF Datasheet

Current PartRFQ

SMAJ54A

MDDIn Stock: 3070SMAJ54A Datasheet

DirectRFQ

SMAJ54A

MDDIn Stock: 3070SMAJ54A Datasheet

DirectRFQ

SMAJ54A-TP

Micro Commercial CoIn Stock: 7421SMAJ54A-TP Datasheet

SimilarRFQ

SMAJP4KE62A-TP

Micro Commercial CoIn Stock: 1190SMAJP4KE62A-TP Datasheet

SimilarRFQ

SZ1SMA58AT3G

LittelfuseIn Stock: 15212SZ1SMA58AT3G Datasheet

SimilarRFQ

TV04A540J-G

Comchip TechnologyIn Stock: 856TV04A540J-G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD214A-T54ALF is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 54V
• Voltage - Clamping (Max) @ Ipp: 87.1V
• Current - Peak Pulse (10/1000µs): 4.6A
• Package / Case: DO-214AC, SMA
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant

Substitute parts are grouped into two categories:

Direct Equivalents: Parts with identical electrical specifications (54V standoff, 87.1V clamping, 4.6A peak pulse) and matching package configuration.

Similar Substitutes: Parts with comparable electrical performance within acceptable tolerance ranges and identical package type, suitable for applications where minor parameter variations are acceptable within circuit design margins.

Parameter Comparison

Engineering Selection Recommendations

Preferred Direct Equivalents:

SMAJ54A (MDD) and TV04A540J-G (Comchip Technology) are the primary substitutes for CD214A-T54ALF. Both parts maintain identical voltage specifications (54V standoff, 87.1V clamping) and peak pulse current (4.6A / 4.59A), with active product status and ROHS3 compliance. These parts provide direct functional replacement with no circuit redesign required.

SMAJ54A-TP (Micro Commercial Co) offers identical electrical specifications with extended operating temperature range (-55 to 175°C) and active product status. This part is available in Tape & Reel packaging, suitable for high-volume production environments.

Secondary Alternatives:

SMAJP4KE62A-TP (Micro Commercial Co) presents a similar substitute with minor parameter variations: 53V standoff (1V lower), 85V clamping (2.1V lower), and 4.8A peak pulse (0.2A higher). This part is suitable for applications where these tolerances fall within acceptable design margins. Extended operating temperature range (-55 to 175°C) is available.

SZ1SMA58AT3G (Littelfuse) is a similar substitute with higher voltage ratings (58V standoff, 93.6V clamping) and automotive-grade qualification (AEC-Q101). This part is appropriate only for applications requiring higher voltage protection or automotive-grade reliability. The 4.3A peak pulse rating is lower than the original specification.

All substitute parts maintain DO-214AC (SMA) package compatibility and surface-mount configuration. Selection should be based on availability, lead time, operating temperature requirements, and specific circuit voltage protection margins.

Frequently Asked Questions (FAQ)

Q: Can SMAJ54A directly replace CD214A-T54ALF without circuit modification?

A: Yes. SMAJ54A maintains identical electrical specifications (54V standoff, 87.1V clamping, 4.6A peak pulse) and DO-214AC package configuration. Direct substitution is possible without circuit redesign.

Q: What is the difference between SMAJ54A and SMAJ54A-TP?

A: Both parts have identical electrical specifications. SMAJ54A-TP is supplied in Tape & Reel packaging and supports an extended operating temperature range (-55 to 175°C) compared to standard packaging. Selection depends on production volume and thermal requirements.

Q: Is SZ1SMA58AT3G a suitable replacement?

A: SZ1SMA58AT3G is a similar substitute with higher voltage ratings (58V standoff, 93.6V clamping). It is suitable only for applications where higher voltage protection is acceptable or required. The lower peak pulse current (4.3A) must be verified against circuit requirements. Automotive-grade qualification (AEC-Q101) is available if needed.

Q: Can SMAJP4KE62A-TP be used as a direct substitute?

A: SMAJP4KE62A-TP is a similar substitute with minor parameter variations (53V standoff, 85V clamping, 4.8A peak pulse). Substitution is acceptable only if circuit design margins accommodate these tolerance differences. Verify that the lower clamping voltage (85V vs. 87.1V) and standoff voltage (53V vs. 54V) remain within acceptable protection thresholds.

Q: Are all substitute parts RoHS3 compliant?

A: SMAJ54A, SMAJ54A-TP, TV04A540J-G, and SZ1SMA58AT3G are confirmed ROHS3 compliant. SMAJP4KE62A-TP RoHS status is not specified in available documentation.

Q: What packaging options are available for substitutes?

A: All substitute parts are supplied in DO-214AC (SMA) surface-mount package. SMAJ54A-TP and TV04A540J-G are available in Tape & Reel (TR) packaging for automated assembly. SMAJP4KE62A-TP is supplied in Bulk packaging.

Q: Which substitute offers the widest operating temperature range?

A: SMAJ54A-TP and SMAJP4KE62A-TP both support -55 to 175°C operating temperature range, compared to -55 to 150°C for the original CD214A-T54ALF. This extended range is beneficial for high-temperature applications.