GDZ13B-HG3-08 Equivalent & Substitute Parts

Part Overview

The GDZ13B-HG3-08 is a 13 V Zener diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 200 mW power dissipation in a surface mount SOD-323 package. This component is classified as an active product with AEC-Q101 automotive qualification and ROHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, manufacturing discontinuation, or design flexibility requirements within the specified parameter tolerances.

Substiute Parts

GDZ13B-HG3-08

Vishay General Semiconductor - Diodes DivisionIn Stock: 1142GDZ13B-HG3-08 Datasheet

Current PartRFQ

CMDZ5243B TR PBFREE

Central Semiconductor CorpIn Stock: 6877CMDZ5243B TR PBFREE Datasheet

MFR RecommendedRFQ

MM3Z13VT1G

onsemiIn Stock: 53243MM3Z13VT1G Datasheet

MFR RecommendedRFQ

SZMM3Z13VST1G

onsemiIn Stock: 86211SZMM3Z13VST1G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of Zener diodes is determined by the following critical parameters:

Primary Substitution Criteria:

• Zener voltage (Vz) must equal 13 V nominal
• Package type must be SOD-323 (SC-76)
• Mounting type must be Surface Mount
• Operating temperature range must encompass -65°C to 150°C
• RoHS3 compliance required

Secondary Compatibility Factors:

• Power rating may exceed the original specification (200 mW minimum)
• Voltage tolerance may vary within acceptable circuit design margins
• Impedance and reverse leakage characteristics must be within acceptable operating parameters for the application

All substitute parts listed maintain the 13 V Zener voltage specification and SOD-323 package format, ensuring direct mechanical and electrical compatibility within the specified operating conditions.

Parameter Comparison

Engineering Selection Recommendations

GDZ13B-HG3-08 (Primary Component) Select this part when automotive-grade qualification and AEC-Q101 certification are mandatory requirements. The ±2% voltage tolerance provides the tightest specification for precision voltage regulation applications. Automotive applications requiring documented traceability and qualification compliance should prioritize this component.

SZMM3Z13VST1G (Preferred Substitute) This onsemi component maintains automotive-grade classification and AEC-Q101 qualification equivalent to the primary part. The 300 mW power rating provides increased thermal margin over the 200 mW specification. Tape & Reel packaging matches the original format. This substitute is suitable for direct replacement in automotive and qualified applications.

MM3Z13VT1G (Alternative Substitute) This onsemi component provides 300 mW power rating with equivalent impedance characteristics. Cut Tape & Digi-Reel packaging differs from the original format but maintains SOD-323 mechanical compatibility. This part is suitable for applications where automotive qualification is not required and packaging format flexibility is acceptable.

CMDZ5243B TR PBFREE (Secondary Substitute) This Central Semiconductor part maintains Tape & Reel packaging and 13 V Zener voltage specification. The 250 mW power rating exceeds the original 200 mW specification. Lower impedance (13 Ohms versus 30 Ohms) and higher reverse leakage current (500 nA versus 100 nA) represent parameter variations. This part is suitable for non-automotive applications where automotive qualification is not required.

All substitute parts maintain ROHS3 compliance and the -65°C to 150°C operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can SZMM3Z13VST1G replace GDZ13B-HG3-08 in automotive applications?

A: Yes. SZMM3Z13VST1G maintains automotive-grade classification and AEC-Q101 qualification. Both components share identical 13 V Zener voltage, SOD-323 package format, and -65°C to 150°C operating temperature range. The increased 300 mW power rating provides additional thermal margin.

Q: What is the difference between MM3Z13VT1G and SZMM3Z13VST1G?

A: Both are onsemi 13 V, 300 mW Zener diodes in SOD-323 packages. SZMM3Z13VST1G includes automotive-grade classification and AEC-Q101 qualification. MM3Z13VT1G uses Cut Tape & Digi-Reel packaging, while SZMM3Z13VST1G uses Tape & Reel format. Select SZMM3Z13VST1G for automotive applications requiring qualification documentation.

Q: Is CMDZ5243B TR PBFREE suitable for automotive applications?

A: CMDZ5243B TR PBFREE does not carry automotive-grade classification or AEC-Q101 qualification. This part is suitable for industrial and commercial applications where automotive qualification is not required. The 13 Ohm impedance and 500 nA reverse leakage differ from the original specification.

Q: Can I use a higher power-rated Zener diode as a substitute?

A: Yes. Zener diodes rated for higher power dissipation (250 mW or 300 mW) are compatible substitutes for the 200 mW GDZ13B-HG3-08, provided all other electrical parameters (13 V Zener voltage, operating temperature range, package format) remain equivalent. Higher power ratings provide increased thermal margin without affecting circuit function.

Q: What packaging formats are available for these substitutes?

A: GDZ13B-HG3-08, CMDZ5243B TR PBFREE, and SZMM3Z13VST1G are supplied in Tape & Reel (TR) format. MM3Z13VT1G is supplied in Cut Tape (CT) & Digi-Reel® format. All maintain SOD-323 mechanical compatibility for surface mount assembly.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. GDZ13B-HG3-08, CMDZ5243B TR PBFREE, MM3Z13VT1G, and SZMM3Z13VST1G are all ROHS3 compliant and REACH unaffected.