SMAJ58CA-TP Equivalent & Substitute Parts

Part Overview

The SMAJ58CA-TP is a surface mount Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general purpose transient protection applications. This unidirectional zener diode operates with a 58V reverse standoff voltage and provides 93.6V maximum clamping voltage at 4.3A peak pulse current in a DO-214AC (SMA) package. The component is RoHS3 compliant and maintains unlimited moisture sensitivity rating (MSL 1). As an active product with established supply availability, equivalent and substitute parts are available from multiple manufacturers offering identical or functionally compatible electrical characteristics within the same package form factor.

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 ~ 175°C	TA
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level (MSL)	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitute parts for the SMAJ58CA-TP are classified into two categories based on electrical parameter alignment:

Direct Equivalents maintain identical electrical specifications across all critical parameters: 58V reverse standoff voltage, 64.4V minimum breakdown voltage, 93.6V maximum clamping voltage, and 4.3A peak pulse current. These parts are interchangeable at the circuit level and differ only in manufacturer, packaging format (Tape & Reel vs. Cut Tape), or minor temperature rating variations within acceptable operating ranges. Direct equivalents include SMAJ58CA (MDD), SMAJ58CA-13-F (Diodes Incorporated), and SMAJ58CA-E3/61 (Vishay General Semiconductor - Diodes Division).

Similar Alternatives share the same 58V reverse standoff and 64.4V breakdown voltage but exhibit different clamping voltage and peak pulse current characteristics. SM4T68CAY (STMicroelectronics) and SMAJ58CA-TR (STMicroelectronics) provide 121V clamping voltage with 19A peak pulse current (8/20µs), representing higher transient energy handling capability. These parts are suitable for applications requiring enhanced surge protection but operate at different voltage suppression levels.

All substitute parts maintain DO-214AC (SMA) surface mount packaging, RoHS3 compliance, and MSL 1 rating, ensuring mechanical and environmental compatibility with the original SMAJ58CA-TP.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Breakdown (Min)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse	Power - Peak Pulse	Operating Temperature	Package / Case	RoHS Status
SMAJ58CA-TP	Micro Commercial Co	58V	64.4V	93.6V	4.3A	400W	-55°C ~ 175°C	DO-214AC, SMA	ROHS3 Compliant
SMAJ58CA	MDD	58V	64.4V	93.6V	4.3A	400W	-50°C ~ 150°C	DO-214AC, SMA	ROHS3 Compliant
SMAJ58CA-13-F	Diodes Incorporated	58V	64.4V	93.6V	4.3A	400W	-55°C ~ 150°C	DO-214AC, SMA	ROHS3 Compliant
SMAJ58CA-E3/61	Vishay General Semiconductor - Diodes Division	58V	64.4V	93.6V	4.3A	400W	-55°C ~ 150°C	DO-214AC, SMA	ROHS3 Compliant
SM4T68CAY	STMicroelectronics	58V	64.4V	121V	19A (8/20µs)	400W	-55°C ~ 150°C	DO-214AC, SMA	ROHS3 Compliant
SMAJ58CA-TR	STMicroelectronics	58V	64.4V	121V	19A (8/20µs)	400W	-55°C ~ 150°C	DO-214AC, SMA	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent Selection: SMAJ58CA (MDD), SMAJ58CA-13-F (Diodes Incorporated), and SMAJ58CA-E3/61 (Vishay General Semiconductor - Diodes Division) are electrically identical to SMAJ58CA-TP and provide pin-for-pin compatibility. Selection among these direct equivalents depends on packaging availability (Tape & Reel vs. Cut Tape) and operating temperature requirements. SMAJ58CA-13-F and SMAJ58CA-E3/61 maintain the full -55°C to 150°C temperature range, while SMAJ58CA (MDD) operates within -50°C to 150°C. All three maintain RoHS3 compliance and MSL 1 rating.

Similar Alternative Selection: SM4T68CAY and SMAJ58CA-TR are suitable for applications requiring higher transient energy absorption. These parts maintain identical reverse standoff and breakdown voltages but provide 121V clamping voltage and 19A peak pulse current, representing approximately 4.4× higher current handling and 1.3× higher clamping voltage compared to SMAJ58CA-TP. SM4T68CAY carries automotive qualification (AEC-Q101) and is graded for automotive applications. Selection of similar alternatives requires circuit-level analysis to confirm compatibility with the higher clamping voltage specification.

All substitute parts are active products with established supply availability and maintain RoHS3 compliance and EAR99 export classification consistent with SMAJ58CA-TP.

Frequently Asked Questions (FAQ)

Q: Can SMAJ58CA (MDD) directly replace SMAJ58CA-TP in production?

A: Yes. SMAJ58CA (MDD) provides identical electrical specifications (58V standoff, 93.6V clamping, 4.3A peak pulse) and DO-214AC (SMA) packaging. The operating temperature range differs slightly (-50°C to 150°C vs. -55°C to 175°C), which may affect suitability in extreme temperature environments. Verify application temperature requirements before substitution.

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

A: Direct equivalents (SMAJ58CA, SMAJ58CA-13-F, SMAJ58CA-E3/61) maintain all electrical parameters identical to SMAJ58CA-TP and are circuit-level interchangeable. Similar alternatives (SM4T68CAY, SMAJ58CA-TR) share the same reverse standoff voltage but provide higher clamping voltage (121V) and peak pulse current (19A), requiring circuit analysis to confirm compatibility.

Q: Are packaging differences between Tape & Reel and Cut Tape significant?

A: Packaging format affects handling and assembly processes but does not impact electrical performance or circuit compatibility. Tape & Reel packaging is standard for automated assembly lines, while Cut Tape is suitable for manual or lower-volume assembly. Select based on manufacturing process requirements.

Q: Does SMAJ58CA-E3/61 from Vishay offer any advantages over other direct equivalents?

A: SMAJ58CA-E3/61 is part of Vishay's TransZorb® series and maintains identical electrical specifications to SMAJ58CA-TP. Selection depends on supply chain preference, manufacturer qualification requirements, and packaging availability (Cut Tape format). No electrical performance advantage exists over other direct equivalents.

Q: Can SM4T68CAY be used in applications designed for SMAJ58CA-TP?

A: SM4T68CAY is suitable only if the circuit design accommodates 121V clamping voltage instead of 93.6V. The higher clamping voltage may affect downstream component stress and circuit behavior. Circuit-level analysis is required before substitution. SM4T68CAY is qualified for automotive applications (AEC-Q101), making it suitable for automotive transient protection requirements.

Q: What compliance certifications apply to all substitute parts?

A: All substitute parts maintain RoHS3 compliance, MSL 1 (unlimited moisture sensitivity), and EAR99 export classification. SMAJ58CA-TP, SMAJ58CA-13-F, SMAJ58CA-E3/61, SM4T68CAY, and SMAJ58CA-TR carry REACH Unaffected status. Verify specific compliance requirements for your application before final part selection.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message