1SMA5930BT3 Zener Diode Equivalent & Substitute Parts

Part Overview

The 1SMA5930BT3 is a 16 V, 1.5 W surface mount zener diode manufactured by onsemi in the DO-214AC (SMA) package. This part is classified as obsolete, indicating discontinuation from the manufacturer. Locating equivalent and substitute components is necessary to support ongoing production requirements, maintenance operations, and design continuity for applications utilizing this zener diode specification.

Key Parameters

Parameter	Value
Voltage - Zener (Nom)	16 V
Power - Max	1.5 W
Tolerance	±5%
Impedance (Max)	10 Ohms
Current - Reverse Leakage @ Vr	500 nA @ 12.2 V
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 200 mA
Operating Temperature Range	-65°C ~ 150°C
Mounting Type	Surface Mount
Package / Case	DO-214AC, SMA
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 1SMA5930BT3 are classified based on electrical parameter equivalence and manufacturing compliance status. The primary substitution criteria are:

Critical Matching Parameters:

Voltage - Zener (Nom): 16 V
Tolerance: ±5%
Operating Temperature Range: -65°C ~ 150°C
Mounting Type: Surface Mount
Package / Case: DO-214AC, SMA
Impedance (Max): 10 Ohms

Substitution Categories:

Direct Manufacturer Equivalent (1SMA5930BT3G): Identical electrical specifications with active product status and RoHS3 compliance. Packaging format differs (Cut Tape & Digi-Reel® versus unspecified original packaging).

Parametric Equivalent with Enhanced Qualification (SZ1SMA5930BT3G): Identical electrical specifications with automotive-grade qualification (AEC-Q101) and active product status. Packaging format is Tape & Reel (TR).

Similar Part with Increased Power Rating (SMAJ5930BE3/TR13): Manufactured by Microchip Technology. Maintains 16 V zener voltage and ±5% tolerance. Power rating increased to 3 W (versus 1.5 W). Reverse leakage current increased to 1 µA @ 12.2 V (versus 500 nA @ 12.2 V). Forward voltage reduced to 1.2 V @ 200 mA (versus 1.5 V @ 200 mA). Package designation is DO-214AC (SMAJ).

Parameter Comparison

Parameter	1SMA5930BT3 (Main)	1SMA5930BT3G (Direct Equivalent)	SZ1SMA5930BT3G (Parametric Equivalent)	SMAJ5930BE3/TR13 (Similar)
Manufacturer	onsemi	onsemi	onsemi	Microchip Technology
Voltage - Zener (Nom)	16 V	16 V	16 V	16 V
Tolerance	±5%	±5%	±5%	±5%
Power - Max	1.5 W	1.5 W	1.5 W	3 W
Impedance (Max)	10 Ohms	10 Ohms	10 Ohms	10 Ohms
Current - Reverse Leakage @ Vr	500 nA @ 12.2 V	500 nA @ 12.2 V	500 nA @ 12.2 V	1 µA @ 12.2 V
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 200 mA	1.5 V @ 200 mA	1.5 V @ 200 mA	1.2 V @ 200 mA
Operating Temperature Range	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA
Product Status	Obsolete	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Grade	Standard	Standard	Automotive	Standard
Qualification	Not specified	Not specified	AEC-Q101	Not specified

Engineering Selection Recommendations

For Direct Replacement (Electrical and Mechanical Compatibility):

The 1SMA5930BT3G is the primary direct equivalent. It maintains all electrical parameters of the obsolete 1SMA5930BT3 while offering active product status and RoHS3 compliance. This part is suitable for applications where the original specification must be preserved without modification.

For Automotive and Enhanced Reliability Applications:

The SZ1SMA5930BT3G provides identical electrical performance with AEC-Q101 automotive qualification. This part is appropriate for designs requiring automotive-grade components or enhanced reliability assurance. Active product status and RoHS3 compliance are confirmed.

For Applications Requiring Increased Power Dissipation:

The SMAJ5930BE3/TR13 from Microchip Technology doubles the maximum power rating to 3 W while maintaining the 16 V zener voltage specification. This part is suitable for applications where the 1.5 W rating is insufficient. The increased power capability accommodates higher current or thermal stress conditions. Forward voltage is reduced to 1.2 V, and reverse leakage increases to 1 µA. This part requires circuit evaluation to confirm compatibility with the original design.

Compliance Considerations:

The original 1SMA5930BT3 is RoHS non-compliant. All substitute parts listed (1SMA5930BT3G, SZ1SMA5930BT3G, and SMAJ5930BE3/TR13) are ROHS3 compliant, supporting modern manufacturing and environmental requirements.

Frequently Asked Questions (FAQ)

Q: Can the 1SMA5930BT3G be used as a direct replacement for the 1SMA5930BT3?

A: Yes. The 1SMA5930BT3G maintains identical electrical specifications including 16 V zener voltage, 1.5 W power rating, ±5% tolerance, and operating temperature range. Both parts use the DO-214AC (SMA) surface mount package. The primary difference is product status (active versus obsolete) and RoHS compliance (ROHS3 versus non-compliant).

Q: What is the difference between the 1SMA5930BT3G and SZ1SMA5930BT3G?

A: Both parts have identical electrical specifications. The SZ1SMA5930BT3G includes automotive-grade qualification (AEC-Q101) and is supplied in Tape & Reel (TR) packaging. The 1SMA5930BT3G is supplied in Cut Tape (CT) & Digi-Reel® packaging. Selection depends on packaging requirements and whether automotive qualification is necessary for the application.

Q: Can the SMAJ5930BE3/TR13 replace the 1SMA5930BT3 in all applications?

A: The SMAJ5930BE3/TR13 maintains the 16 V zener voltage and ±5% tolerance but differs in power rating (3 W versus 1.5 W), reverse leakage current (1 µA versus 500 nA), and forward voltage (1.2 V versus 1.5 V). This part is suitable for applications where increased power dissipation is beneficial or required. Applications sensitive to reverse leakage or forward voltage characteristics require circuit evaluation.

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

A: All substitute parts use the DO-214AC surface mount package. The package designation is consistent across all parts (SMA or SMAJ variants of DO-214AC). Mounting footprints are compatible. Packaging format (tape configuration) differs between parts but does not affect circuit-level compatibility.

Q: What is the inventory status of these substitute parts?

A: The 1SMA5930BT3G has 80,300 pieces in stock. The SZ1SMA5930BT3G has 10,200 pieces in stock. The SMAJ5930BE3/TR13 has 878 pieces in stock. All parts are listed as new original stock.

Q: Are there RoHS compliance differences between the substitute parts?

A: All substitute parts (1SMA5930BT3G, SZ1SMA5930BT3G, and SMAJ5930BE3/TR13) are ROHS3 compliant. The original 1SMA5930BT3 is RoHS non-compliant. This compliance upgrade supports modern manufacturing standards and environmental regulations.

Q: Which substitute part should be selected for new designs?

A: For new designs requiring standard performance, the 1SMA5930BT3G is the recommended choice due to active status, RoHS3 compliance, and direct electrical equivalence. For automotive applications, the SZ1SMA5930BT3G with AEC-Q101 qualification is appropriate. For applications requiring higher power dissipation, the SMAJ5930BE3/TR13 provides increased capability.

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