TZMB8V2-GS18 Equivalent & Substitute Parts

Part Overview

The TZMB8V2-GS18 is a Zener diode rated at 8.2 V nominal voltage with 500 mW maximum power dissipation, manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component is packaged in SOD-80 MiniMELF configuration and is qualified to AEC-Q101 automotive standards. The part is currently active in production with 981 pieces in stock. Substitute parts are identified when identical electrical specifications and mechanical compatibility are maintained across the same product series, enabling component interchangeability for procurement flexibility and supply chain continuity.

Key Parameters

Parameter	Value
Voltage - Zener (Nom)	8.2 V
Tolerance	±2%
Power - Max	500 mW
Impedance (Max)	7 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 6.2 V
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 200 mA
Operating Temperature Range	-65°C ~ 175°C
Package / Case	DO-213AC, MINI-MELF, SOD-80
Mounting Type	Surface Mount
Grade	Automotive
Qualification	AEC-Q101
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the TZMB8V2-GS18 are identified based on strict equivalence of the following critical parameters:

Zener voltage specification (8.2 V nominal with ±2% tolerance), maximum power rating (500 mW), impedance characteristics (7 Ohms maximum), reverse leakage current (100 nA @ 6.2 V), forward voltage drop (1.5 V @ 200 mA), operating temperature range (-65°C to 175°C), surface mount packaging in SOD-80 MiniMELF configuration, automotive grade classification, and AEC-Q101 qualification status.

The TZMB8V2-GS08 is classified as a parametric equivalent because it maintains identical electrical performance specifications and mechanical compatibility within the TZM series. Both parts share the same base product number (TZMB8V2) and differ only in tape reel configuration codes, which do not affect component functionality or circuit performance.

Parameter Comparison

Parameter	TZMB8V2-GS18	TZMB8V2-GS08	Match
Voltage - Zener (Nom)	8.2 V	8.2 V	Yes
Tolerance	±2%	±2%	Yes
Power - Max	500 mW	500 mW	Yes
Impedance (Max)	7 Ohms	7 Ohms	Yes
Current - Reverse Leakage @ Vr	100 nA @ 6.2 V	100 nA @ 6.2 V	Yes
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 200 mA	1.5 V @ 200 mA	Yes
Operating Temperature Range	-65°C ~ 175°C	-65°C ~ 175°C	Yes
Package / Case	DO-213AC, MINI-MELF, SOD-80	DO-213AC, MINI-MELF, SOD-80	Yes
Mounting Type	Surface Mount	Surface Mount	Yes
Grade	Automotive	Automotive	Yes
Qualification	AEC-Q101	AEC-Q101	Yes
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Yes
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Yes
Series	TZM	TZM	Yes
Product Status	Active	Active	Yes

Engineering Selection Recommendations

Both the TZMB8V2-GS18 and TZMB8V2-GS08 are active production components manufactured by Vishay General Semiconductor - Diodes Division within the TZM series. Both parts carry AEC-Q101 automotive qualification and ROHS3 compliance certification, confirming suitability for automotive and industrial applications requiring regulated voltage reference or transient suppression functions.

The TZMB8V2-GS08 offers higher inventory availability (4990 pieces in stock) compared to the TZMB8V2-GS18 (981 pieces in stock), providing supply chain advantages without compromising electrical or mechanical performance. Component selection between these two parts should be based on procurement lead time requirements and inventory allocation policies, as all functional and compliance parameters are identical.

Frequently Asked Questions (FAQ)

Q: Are TZMB8V2-GS18 and TZMB8V2-GS08 electrically interchangeable?

A: Yes. Both parts maintain identical Zener voltage (8.2 V), power rating (500 mW), impedance (7 Ohms), leakage current, forward voltage, and operating temperature specifications. They are direct functional equivalents.

Q: Do these parts use the same physical package?

A: Yes. Both components are packaged in SOD-80 MiniMELF (DO-213AC) surface mount configuration with identical footprint and mounting requirements.

Q: What do the suffix codes GS18 and GS08 represent?

A: The suffix codes indicate tape reel configuration and packaging specifications from the manufacturer. These designations do not affect component electrical performance or circuit compatibility.

Q: Are both parts automotive qualified?

A: Yes. Both TZMB8V2-GS18 and TZMB8V2-GS08 carry AEC-Q101 automotive qualification and are classified as automotive grade components.

Q: Can I substitute TZMB8V2-GS08 for TZMB8V2-GS18 in existing designs?

A: Yes. The parts are parametric equivalents with identical electrical specifications, mechanical compatibility, and compliance certifications. Direct substitution is supported without circuit redesign.

Q: What is the moisture sensitivity level for these components?

A: Both parts have Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life under standard storage conditions without special moisture control requirements.

Q: Are these parts RoHS compliant?

A: Yes. Both components are ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements for electronic component manufacturing and distribution.

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