GDZ22B-E3-08 Equivalent & Substitute Parts

Part Overview

The GDZ22B-E3-08 is a 22 V Zener diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 200 mW maximum power dissipation in a surface mount SOD-323 package. This component is classified as Active and is ROHS3 compliant. Substitute parts are necessary when the original part is unavailable, when alternative packaging formats are required, or when enhanced electrical performance characteristics are beneficial for specific circuit applications.

Substiute Parts

GDZ22B-E3-08

Vishay General Semiconductor - Diodes DivisionIn Stock: 714GDZ22B-E3-08 Datasheet

Current PartRFQ

MM3Z22VST1G

onsemiIn Stock: 215257MM3Z22VST1G Datasheet

MFR RecommendedRFQ

MM3Z22VT1G

onsemiIn Stock: 41449MM3Z22VT1G Datasheet

MFR RecommendedRFQ

SZMM3Z22VST1G

onsemiIn Stock: 4000SZMM3Z22VST1G Datasheet

MFR RecommendedRFQ

SZMM3Z22VT1G

onsemiIn Stock: 9787SZMM3Z22VT1G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the GDZ22B-E3-08 is determined by the following critical parameters:

Primary Substitution Criteria:

• Zener voltage rating: 22 V (nominal)
• Package type: SOD-323 (SC-76)
• Mounting type: Surface Mount
• Operating temperature range compatibility
• RoHS3 compliance status

Secondary Compatibility Factors:

• Power dissipation rating (minimum 200 mW required)
• Impedance characteristics (Zzt)
• Reverse leakage current specifications
• Tolerance range (±2% to ±5% acceptable)

All substitute parts listed maintain the 22 V nominal Zener voltage and SOD-323 package format. Substitute parts from onsemi (MM3Z22 series) provide enhanced power ratings of 300 mW, lower impedance values, and improved temperature operating ranges. Automotive-grade variants (SZMM3 series) include AEC-Q101 qualification for applications requiring automotive-level reliability.

Parameter Comparison

Engineering Selection Recommendations

Standard Industrial Applications: MM3Z22VST1G and MM3Z22VT1G are direct functional equivalents suitable for standard industrial applications. Both parts maintain the 22 V Zener voltage specification and SOD-323 package format. MM3Z22VST1G offers superior tolerance (±2%) compared to the original GDZ22B-E3-08 (±4%), with increased power rating of 300 mW. MM3Z22VT1G provides ±5% tolerance with equivalent 300 mW power rating. Both parts extend the operating temperature range to -65°C, providing enhanced low-temperature performance.

Automotive and High-Reliability Applications: SZMM3Z22VST1G and SZMM3Z22VT1G are automotive-grade alternatives qualified to AEC-Q101 standard. These parts are appropriate for applications requiring automotive-level component reliability and traceability. Both maintain 22 V Zener voltage and 300 mW power rating with SOD-323 packaging. SZMM3Z22VT1G includes ±5% tolerance specification, while SZMM3Z22VST1G tolerance is not specified in available documentation.

Packaging Considerations: MM3Z22VST1G is supplied in Cut Tape (CT) & Digi-Reel® format. MM3Z22VT1G, SZMM3Z22VST1G, and SZMM3Z22VT1G are supplied in Tape & Reel (TR) format, matching the original GDZ22B-E3-08 packaging specification.

All substitute parts are ROHS3 compliant and maintain MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can MM3Z22VST1G replace GDZ22B-E3-08 in existing designs? A: Yes. Both parts share identical 22 V Zener voltage rating and SOD-323 package format. MM3Z22VST1G provides superior tolerance (±2% versus ±4%) and increased power rating (300 mW versus 200 mW). The primary difference is packaging format: MM3Z22VST1G uses Cut Tape & Digi-Reel® while GDZ22B-E3-08 uses Tape & Reel.

Q: What is the difference between MM3Z22VT1G and MM3Z22VST1G? A: Both parts are 22 V, 300 mW Zener diodes in SOD-323 packages from onsemi. MM3Z22VST1G offers ±2% tolerance and is supplied in Cut Tape & Digi-Reel® format. MM3Z22VT1G offers ±5% tolerance and is supplied in Tape & Reel format. Electrical performance is equivalent; selection depends on tolerance requirements and packaging preference.

Q: Are SZMM3Z22VST1G and SZMM3Z22VT1G suitable for non-automotive applications? A: Yes. Automotive-grade components exceed standard industrial specifications and are fully compatible with non-automotive applications. These parts provide AEC-Q101 qualification, enhanced reliability, and extended temperature range (-65°C to 150°C). Selection of automotive-grade parts is appropriate when enhanced reliability margins are beneficial.

Q: What is the impedance difference between GDZ22B-E3-08 and substitute parts? A: GDZ22B-E3-08 has maximum impedance of 100 Ohms. All onsemi substitute parts (MM3Z22 and SZMM3Z22 series) have maximum impedance of 55 Ohms. Lower impedance provides improved voltage regulation characteristics and reduced output impedance in Zener regulation circuits.

Q: Can I use a 300 mW rated part in place of a 200 mW rated part? A: Yes. Higher power rating provides additional thermal margin and is functionally compatible. The 300 mW rating of substitute parts exceeds the 200 mW requirement of GDZ22B-E3-08, ensuring adequate power dissipation capability in all applications where the original part was specified.

Q: What is the temperature range difference? A: GDZ22B-E3-08 operates from -55°C to 150°C. All onsemi substitute parts operate from -65°C to 150°C, providing 10°C additional low-temperature capability. This extended range is beneficial for applications in cold environments or with stringent temperature specifications.

Q: Are all substitute parts ROHS3 compliant? A: Yes. GDZ22B-E3-08 and all listed substitute parts (MM3Z22VST1G, MM3Z22VT1G, SZMM3Z22VST1G, SZMM3Z22VT1G) are ROHS3 compliant and maintain MSL 1 (Unlimited) moisture sensitivity rating.