SMBJ5956A/TR13 Equivalent & Substitute Parts

Part Overview

The SMBJ5956A/TR13 is a 200 V, 2 W Zener diode manufactured by Microchip Technology in Surface Mount Device (SMD) packaging. This component is classified as a DO-214AA (SMB) package Zener diode with ±10% voltage tolerance and is currently in active production status. The SMBJ5956A/TR13 is supplied in Tape & Reel (TR) packaging format.

Equivalent and substitute parts are identified based on matching core electrical parameters: nominal Zener voltage (200 V), package type (DO-214AA/SMB), mounting technology (Surface Mount), and operating temperature range (-65°C to 150°C). Substitute parts may differ in power rating, voltage tolerance, packaging format, or compliance certifications while maintaining functional compatibility within specified electrical parameters.

Substiute Parts

SMBJ5956A/TR13

Microchip TechnologyIn Stock: 884SMBJ5956A/TR13 Datasheet

Current PartRFQ

1SMB5956BT3G

onsemiIn Stock: 394611SMB5956BT3G Datasheet

SimilarRFQ

SZ1SMB5956BT3G

onsemiIn Stock: 2279SZ1SMB5956BT3G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMBJ5956A/TR13 are qualified based on the following core electrical and mechanical parameters:

Matching Parameters (Required for Substitution):

• Nominal Zener voltage: 200 V
• Package type: DO-214AA / SMB
• Mounting technology: Surface Mount
• Operating temperature range: -65°C to 150°C
• Impedance (Max): 1200 Ohms
• Current - Reverse Leakage @ Vr: 1 µA @ 152 V

Variable Parameters (Allowed to Differ):

• Power rating (2 W to 3 W)
• Voltage tolerance (±10% to ±5%)
• Forward voltage (Vf) at specified current
• Packaging format (Tape & Reel vs. Cut Tape)
• Manufacturer (Microchip Technology vs. onsemi)
• RoHS compliance status
• Automotive qualification and AEC-Q101 certification

The identified substitute parts maintain electrical compatibility through matching Zener voltage, impedance, leakage current, and thermal operating range. Differences in power dissipation capability and voltage tolerance represent enhanced or alternative specifications suitable for equivalent circuit applications.

Parameter Comparison

Engineering Selection Recommendations

SMBJ5956A/TR13 (Primary Part - Microchip Technology)

The SMBJ5956A/TR13 is the original specification component. Selection is appropriate for applications where Microchip Technology sourcing is required, RoHS non-compliance is acceptable, and 2 W power dissipation meets circuit requirements. This part is supplied in Tape & Reel format and maintains active production status.

1SMB5956BT3G (onsemi - Cut Tape / Digi-Reel® Format)

The 1SMB5956BT3G is functionally equivalent with enhanced specifications: 3 W power rating (50% higher than primary part), ±5% voltage tolerance (tighter than ±10%), and ROHS3 compliance. This part is supplied in Cut Tape and Digi-Reel® packaging. Selection is appropriate for applications requiring improved RoHS compliance, higher power dissipation capability, or tighter voltage tolerance. Forward voltage (Vf) is specified at 1.5 V versus 1.2 V for the primary part.

SZ1SMB5956BT3G (onsemi - Tape & Reel Format, Automotive Grade)

The SZ1SMB5956BT3G is functionally equivalent with automotive-grade qualification and AEC-Q101 certification. This part features 3 W power rating, ±5% voltage tolerance, ROHS3 compliance, and Tape & Reel packaging identical to the primary part format. Selection is required for automotive applications, military specifications, or designs requiring AEC-Q101 qualified components. Forward voltage (Vf) is specified at 1.5 V.

All three parts share identical Zener voltage (200 V), impedance (1200 Ohms), reverse leakage current (1 µA @ 152 V), operating temperature range (-65°C to 150°C), and DO-214AA/SMB package type. Substitution is electrically valid within these matched parameters.

Frequently Asked Questions (FAQ)

Q: Can the 1SMB5956BT3G substitute for the SMBJ5956A/TR13 in a standard circuit application?

A: Yes. Both parts share identical Zener voltage (200 V), impedance (1200 Ohms), reverse leakage current, and operating temperature range. The 1SMB5956BT3G provides enhanced specifications: 3 W power rating (versus 2 W), ±5% tolerance (versus ±10%), and ROHS3 compliance. Forward voltage differs (1.5 V versus 1.2 V at 200 mA), which may affect circuit performance in forward-biased applications. Verify forward voltage requirements in your specific circuit design.

Q: What is the difference between 1SMB5956BT3G and SZ1SMB5956BT3G?

A: Both parts are manufactured by onsemi with identical electrical specifications: 200 V Zener voltage, 3 W power rating, ±5% tolerance, and DO-214AA/SMB package. The primary difference is packaging format and automotive qualification. The 1SMB5956BT3G is supplied in Cut Tape and Digi-Reel® format. The SZ1SMB5956BT3G is supplied in Tape & Reel format and includes automotive-grade qualification with AEC-Q101 certification. Select SZ1SMB5956BT3G for automotive applications or when Tape & Reel packaging is required.

Q: Is the SMBJ5956A/TR13 RoHS compliant?

A: No. The SMBJ5956A/TR13 is RoHS non-compliant. Both substitute parts (1SMB5956BT3G and SZ1SMB5956BT3G) are ROHS3 compliant. If RoHS compliance is required for your application, select one of the onsemi substitute parts.

Q: Can I use the SZ1SMB5956BT3G in non-automotive applications?

A: Yes. The SZ1SMB5956BT3G is automotive-grade with AEC-Q101 certification, but this qualification does not restrict use in non-automotive applications. The part meets all standard electrical and thermal specifications for general-purpose Zener diode applications. Automotive qualification represents an additional quality and reliability assurance level.

Q: What does the ±5% and ±10% tolerance specification mean for Zener voltage?

A: Tolerance specifies the allowable deviation of the actual Zener voltage from the nominal 200 V specification. The SMBJ5956A/TR13 with ±10% tolerance allows actual Zener voltage between 180 V and 220 V. The substitute parts with ±5% tolerance allow actual Zener voltage between 190 V and 210 V. Tighter tolerance (±5%) provides more precise voltage regulation in circuit applications.

Q: Are all three parts in the same DO-214AA/SMB package?

A: Yes. All three parts use the DO-214AA (SMB) surface mount package. Physical dimensions and PCB footprint are identical. Packaging format differs: SMBJ5956A/TR13 and SZ1SMB5956BT3G are supplied in Tape & Reel (TR) format; 1SMB5956BT3G is supplied in Cut Tape (CT) and Digi-Reel® format. These format differences affect component handling and assembly processes but do not affect electrical performance or physical package dimensions.

Q: What is the significance of the 1 µA reverse leakage current specification?

A: Reverse leakage current (1 µA @ 152 V) specifies the maximum current flowing through the Zener diode when reverse-biased at 152 V. This parameter is identical across all three parts and indicates the quality of the diode junction. Lower leakage current represents better diode quality and reduced power dissipation in reverse-bias conditions. All three parts meet identical leakage specifications.

Q: Can I mix SMBJ5956A/TR13 and substitute parts in the same production run?

A: Electrical substitution is valid based on matching Zener voltage, impedance, leakage current, and operating temperature. However, mixing parts from different manufacturers (Microchip vs. onsemi) and different compliance statuses (RoHS non-compliant vs. ROHS3 compliant) may create supply chain, documentation, and compliance tracking complications. Standardize on a single part number for consistent production documentation and traceability.