SMAJ5928B-TP Equivalent & Substitute Parts

Part Overview

The SMAJ5928B-TP is a surface mount Zener diode manufactured by Micro Commercial Co, rated at 13 V nominal Zener voltage with 1.5 W maximum power dissipation. The device is packaged in DO-214AC (SMA) format and is RoHS3 compliant with unlimited moisture sensitivity level. This component is in active product status and serves voltage regulation and transient protection applications in electronic circuits. Substitute parts are identified to provide design flexibility, supply chain alternatives, and extended availability options while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nominal)	13	V
Tolerance	±5	%
Power - Maximum	1.5	W
Impedance (Maximum)	7	Ohms
Current - Reverse Leakage @ Vr	500	nA @ 9.9 V
Voltage - Forward (Maximum) @ If	1.5	V @ 200 mA
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the SMAJ5928B-TP are qualified based on the following electrical and mechanical parameters:

Electrical Compatibility Criteria:

Zener voltage (Nominal): 13 V
Tolerance: ±5%
Maximum power dissipation: 1.5 W
Maximum impedance: 7 Ohms
Reverse leakage current: 500 nA @ 9.9 V
Forward voltage: 1.5 V @ 200 mA

Mechanical Compatibility Criteria:

Package type: DO-214AC (SMA)
Mounting type: Surface Mount
Packaging format: Tape & Reel (TR)

Compliance Criteria:

RoHS3 compliance
Moisture Sensitivity Level: 1 (Unlimited)
REACH Unaffected status
ECCN: EAR99

All identified substitute parts meet these parameters without exception. The following parts are direct electrical and mechanical equivalents:

1SMA5928BT3G (onsemi) — Standard industrial grade
SZ1SMA5928BT3G (onsemi) — Automotive grade with AEC-Q101 qualification

Parameter Comparison

Parameter	SMAJ5928B-TP (Micro Commercial Co)	1SMA5928BT3G (onsemi)	SZ1SMA5928BT3G (onsemi)
Voltage - Zener (Nominal)	13 V	13 V	13 V
Tolerance	±5%	±5%	±5%
Power - Maximum	1.5 W	1.5 W	1.5 W
Impedance (Maximum)	7 Ohms	7 Ohms	7 Ohms
Current - Reverse Leakage @ Vr	500 nA @ 9.9 V	500 nA @ 9.9 V	500 nA @ 9.9 V
Voltage - Forward (Maximum) @ If	1.5 V @ 200 mA	1.5 V @ 200 mA	1.5 V @ 200 mA
Operating Temperature Range	Up to 150°C	-65°C ~ 150°C	-65°C ~ 150°C
Package / Case	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA
Mounting Type	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Grade	Standard	Standard	Automotive
Qualification	—	—	AEC-Q101

Engineering Selection Recommendations

SMAJ5928B-TP (Micro Commercial Co) is the primary part specification. Selection of substitute parts is determined by application requirements and supply availability:

1SMA5928BT3G (onsemi) is a direct electrical and mechanical equivalent suitable for general industrial applications. This part maintains identical electrical performance across all specified parameters and is RoHS3 compliant with unlimited moisture sensitivity. The extended operating temperature range (-65°C to 150°C) provides additional thermal margin compared to the primary part.

SZ1SMA5928BT3G (onsemi) is an automotive-grade equivalent qualified to AEC-Q101 standard. This part is specified for applications requiring automotive-level reliability and qualification. All electrical parameters remain identical to the primary part, with the same extended operating temperature range. Selection of this part is appropriate for automotive, industrial control, and mission-critical applications where AEC-Q101 qualification is a design requirement.

All three parts are RoHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Selection between these parts should be based on application grade requirements and supply chain considerations rather than electrical performance differences.

Frequently Asked Questions (FAQ)

Q: Can 1SMA5928BT3G be used as a direct replacement for SMAJ5928B-TP?

A: Yes. The 1SMA5928BT3G meets all electrical and mechanical specifications of the SMAJ5928B-TP. Both devices have identical Zener voltage (13 V), power rating (1.5 W), impedance (7 Ohms), and package format (DO-214AC SMA). The 1SMA5928BT3G provides an extended operating temperature range of -65°C to 150°C compared to the primary part's 150°C maximum.

Q: What is the difference between 1SMA5928BT3G and SZ1SMA5928BT3G?

A: Both parts are electrically and mechanically identical with matching Zener voltage, power dissipation, impedance, and package specifications. The SZ1SMA5928BT3G is automotive-grade and carries AEC-Q101 qualification, making it suitable for automotive and high-reliability applications. The 1SMA5928BT3G is standard industrial grade. Selection depends on application requirements for automotive qualification.

Q: Are all substitute parts in the same package format?

A: Yes. All three parts use the DO-214AC (SMA) surface mount package format with Tape & Reel (TR) packaging. They are mechanically interchangeable on PCB layouts designed for SMA package components.

Q: Do the substitute parts have the same RoHS and REACH compliance status?

A: Yes. All three parts are RoHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Moisture sensitivity level is 1 (Unlimited) for all parts.

Q: Which substitute part should be selected for automotive applications?

A: The SZ1SMA5928BT3G is specified for automotive applications due to its AEC-Q101 qualification. This part meets automotive-grade reliability and qualification requirements while maintaining identical electrical performance to the primary part.

Q: Are there temperature range differences between the parts?

A: The primary part SMAJ5928B-TP specifies operation up to 150°C. Both onsemi substitute parts (1SMA5928BT3G and SZ1SMA5928BT3G) specify an extended range of -65°C to 150°C, providing additional low-temperature capability.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message