CD214A-T58CALF Equivalent & Substitute Parts

Part Overview

The CD214A-T58CALF 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 58V reverse standoff voltage, 93.6V maximum clamping voltage, and 4.3A peak pulse current capability in a DO-214AC (SMA) package. The part is classified as obsolete, necessitating identification of active equivalent and substitute components to maintain design continuity and ensure supply chain availability.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	58	V
Voltage - Breakdown (Min)	64.4	V
Voltage - Clamping (Max) @ Ipp	93.6	V
Current - Peak Pulse (10/1000µs)	4.3	A
Power - Peak Pulse	400	W
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature	-55°C ~ 150°C	TJ
Type	Zener	—
Bidirectional Channels	1	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the CD214A-T58CALF is determined by strict alignment of electrical and mechanical parameters. The critical parameters governing substitutability are:

Voltage - Reverse Standoff (Typ): 58V
Voltage - Breakdown (Min): 64.4V
Package / Case: DO-214AC, SMA
Mounting Type: Surface Mount
Type: Zener, Bidirectional (1 channel)
RoHS Status: ROHS3 Compliant

Substitute parts are classified into two categories:

Direct Equivalents maintain identical electrical performance across all key parameters, including clamping voltage (93.6V) and peak pulse current (4.3A). These parts are interchangeable without circuit redesign.

Similar Alternatives share the same reverse standoff voltage (58V), breakdown voltage (64.4V), and package format but differ in clamping voltage and/or peak pulse current specifications. Selection of similar alternatives requires circuit-level verification to confirm compatibility with the application's transient suppression requirements.

Parameter Comparison

Part Number	Manufacturer	Product Status	Voltage - Reverse Standoff (Typ)	Voltage - Breakdown (Min)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Package / Case	Operating Temperature	RoHS Status
CD214A-T58CALF	Bourns Inc.	Obsolete	58V	64.4V	93.6V	4.3A	400W	DO-214AC, SMA	-55°C ~ 150°C	ROHS3 Compliant
SMAJ58CA	MDD	Active	58V	64.4V	93.6V	4.3A	400W	DO-214AC, SMA	-50°C ~ 150°C	ROHS3 Compliant
SM4T68CAY	STMicroelectronics	Active	58V	64.4V	121V	19A (8/20µs)	400W	DO-214AC, SMA	-55°C ~ 150°C	ROHS3 Compliant
SMA6J58CA-TR	STMicroelectronics	Active	58V	64.4V	100V	33A (8/20µs)	600W	DO-214AC, SMA	-55°C ~ 175°C	ROHS3 Compliant
SMAJ51CA-M3/61	Vishay General Semiconductor - Diodes Division	Active	51V	56.7V	82.4V	4.9A	400W	DO-214AC, SMA	-55°C ~ 150°C	ROHS3 Compliant
SMAJ58CA-TP	Micro Commercial Co	Active	58V	64.4V	93.6V	4.3A	400W	DO-214AC, SMA	-55°C ~ 175°C	ROHS3 Compliant
SMAJ58CA-TR	STMicroelectronics	Active	58V	64.4V	121V	19A (8/20µs)	400W	DO-214AC, SMA	-55°C ~ 150°C	ROHS3 Compliant
TV04A580JB-G	Comchip Technology	Active	58V	64.4V	93.6V	4.27A	400W	DO-214AC, SMA	-55°C ~ 150°C	ROHS3 Compliant
TV04A580JB-HF	Comchip Technology	Active	58V	64.4V	93.6V	4.27A	400W	DO-214AC, SMA	-55°C ~ 150°C	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent Selection (Preferred)

SMAJ58CA (MDD) and SMAJ58CA-TP (Micro Commercial Co) are direct electrical equivalents to the CD214A-T58CALF. Both maintain identical reverse standoff voltage (58V), breakdown voltage (64.4V), clamping voltage (93.6V), and peak pulse current (4.3A). Both are active products with ROHS3 compliance and MSL 1 rating. SMAJ58CA-TP offers an extended operating temperature range (-55°C ~ 175°C) compared to the original specification (-55°C ~ 150°C), providing additional thermal margin. TV04A580JB-G and TV04A580JB-HF (Comchip Technology) are functionally equivalent with marginally higher peak pulse current (4.27A vs. 4.3A), within acceptable tolerance for general-purpose applications.

Similar Alternative Selection (Application-Dependent)

SM4T68CAY and SMAJ58CA-TR (STMicroelectronics) share the same reverse standoff and breakdown voltages but feature higher clamping voltage (121V) and significantly higher peak pulse current (19A at 8/20µs). These parts are suitable for applications requiring enhanced transient suppression capability but require verification that the higher clamping voltage does not exceed downstream component voltage ratings.

SMA6J58CA-TR (STMicroelectronics) provides the highest performance envelope with 100V clamping voltage, 33A peak pulse current (8/20µs), and 600W peak pulse power. This part extends the operating temperature range to -55°C ~ 175°C and is appropriate for demanding industrial or automotive-grade applications.

SMAJ51CA-M3/61 (Vishay) operates at a lower reverse standoff voltage (51V) and is not recommended as a direct substitute due to the 7V differential in standoff voltage, which may compromise overvoltage protection margins in the original circuit.

Frequently Asked Questions (FAQ)

Q: Can SMAJ58CA directly replace CD214A-T58CALF without circuit modification?

A: Yes. SMAJ58CA maintains identical electrical specifications across all critical parameters: 58V reverse standoff, 64.4V breakdown, 93.6V clamping, and 4.3A peak pulse current. The part is pin-compatible in the DO-214AC (SMA) package and requires no circuit redesign.

Q: What is the difference between direct equivalents and similar alternatives?

A: Direct equivalents (SMAJ58CA, SMAJ58CA-TP, TV04A580JB-G, TV04A580JB-HF) maintain identical clamping voltage and peak pulse current specifications. Similar alternatives (SM4T68CAY, SMAJ58CA-TR, SMA6J58CA-TR) share the same reverse standoff voltage but feature higher clamping voltage and/or peak pulse current. Similar alternatives require circuit-level analysis to confirm compatibility.

Q: Why do some substitute parts have higher clamping voltages?

A: Higher clamping voltages (121V vs. 93.6V) indicate enhanced transient suppression capability at the cost of higher voltage stress on protected components. Selection depends on the specific overvoltage transient profile and downstream component voltage ratings. Higher clamping voltage parts are suitable for applications with severe transient environments.

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 requirements of the original CD214A-T58CALF.

Q: What is the significance of operating temperature range differences?

A: SMAJ58CA-TP and SMA6J58CA-TR extend the maximum operating temperature to 175°C compared to the original 150°C specification. This provides additional thermal margin in high-temperature environments but does not affect functionality in standard applications operating within -55°C ~ 150°C.

Q: Can TV04A580JB-G and TV04A580JB-HF be used interchangeably?

A: Yes. Both Comchip Technology parts (TV04A580JB-G and TV04A580JB-HF) are electrically identical with 93.6V clamping voltage and 4.27A peak pulse current. The suffix designations indicate packaging or tape format variations only.

Q: Is SMAJ51CA-M3/61 a suitable substitute?

A: No. SMAJ51CA-M3/61 operates at 51V reverse standoff voltage, which is 7V lower than the original specification. This voltage differential reduces overvoltage protection margins and may compromise circuit protection in the original application. This part is not recommended as a substitute.

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