ZMY16-GS18 Equivalent & Substitute Parts

Part Overview

The ZMY16-GS18 is a 16 V, 1 W Zener diode manufactured by Vishay General Semiconductor - Diodes Division in the DO-213AB (MELF) surface mount package. This component is classified as an active product with automotive-grade qualification (AEC-Q101) and is supplied in Tape & Reel (TR) packaging. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or when alternative packaging formats are required for manufacturing processes.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nominal)	16	V
Power - Maximum	1	W
Tolerance	±5	%
Impedance (Maximum)	10	Ohms
Current - Reverse Leakage @ Vr	500	nA @ 12 V
Operating Temperature	175	°C
Package / Case	DO-213AB, MELF (Glass)	—
Mounting Type	Surface Mount	—
Grade	Automotive	—
Qualification	AEC-Q101	—

Substitute Part Grouping Explanation

Substitute parts for the ZMY16-GS18 are identified based on electrical and mechanical parameter equivalence. The primary substitution criteria are:

Electrical Parameters:

Zener voltage: 16 V (nominal)
Power rating: 1 W (maximum)
Voltage tolerance: ±5%
Operating temperature: 175°C maximum

Mechanical Parameters:

Package type: DO-213AB (MELF, Glass)
Mounting type: Surface Mount
Supplier device package: DO-213AB

Compliance & Qualification:

Automotive grade
AEC-Q101 qualification

Substitute parts must maintain identical electrical specifications and package compatibility. Variations in impedance and reverse leakage characteristics are permitted within the operational envelope of the application circuit, provided the core voltage and power ratings remain constant.

Parameter Comparison

Parameter	ZMY16-GS18	ZMY16-GS08	ZM4745A-GS08
Voltage - Zener (Nominal)	16 V	16 V	16 V
Power - Maximum	1 W	1 W	1 W
Tolerance	±5%	±5%	±5%
Impedance (Maximum)	10 Ohms	10 Ohms	16 Ohms
Current - Reverse Leakage @ Vr	500 nA @ 12 V	500 nA @ 12 V	5 µA @ 12.2 V
Operating Temperature	175°C	175°C	175°C
Package / Case	DO-213AB, MELF (Glass)	DO-213AB, MELF (Glass)	DO-213AB, MELF (Glass)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Grade	Automotive	Automotive	Automotive
Qualification	AEC-Q101	AEC-Q101	AEC-Q101
Part Status	Active	Active	Active

Engineering Selection Recommendations

ZMY16-GS08 is a parametric equivalent to ZMY16-GS18. Both components share identical electrical specifications (16 V nominal, 1 W power, ±5% tolerance, 10 Ohms maximum impedance, 500 nA reverse leakage). The primary distinction is packaging format: ZMY16-GS18 is supplied in Tape & Reel (TR) format, while ZMY16-GS08 is available in Cut Tape (CT) format. Both maintain active product status and full AEC-Q101 automotive qualification. Selection between these two parts depends on manufacturing assembly requirements and tape format compatibility.

ZM4745A-GS08 is a direct manufacturer substitute with equivalent core electrical specifications (16 V nominal, 1 W power, ±5% tolerance). This part exhibits higher impedance (16 Ohms maximum versus 10 Ohms) and elevated reverse leakage current (5 µA @ 12.2 V versus 500 nA @ 12 V). ZM4745A-GS08 maintains identical package type (DO-213AB), mounting type (Surface Mount), and automotive qualification (AEC-Q101). This part is suitable for applications where the higher impedance and leakage characteristics fall within acceptable circuit tolerances. ZM4745A-GS08 carries additional compliance documentation including RoHS3 compliance, MSL Level 1, and REACH unaffected status.

All three parts are active products from Vishay General Semiconductor - Diodes Division with confirmed inventory availability.

Frequently Asked Questions (FAQ)

Q: Can ZMY16-GS08 be used as a direct replacement for ZMY16-GS18?

A: Yes. ZMY16-GS08 is a parametric equivalent with identical electrical specifications. The difference is packaging format: ZMY16-GS18 uses Tape & Reel (TR) format while ZMY16-GS08 uses Cut Tape (CT) format. Compatibility depends on your assembly equipment's tape format capability.

Q: What is the difference between ZMY16-GS18 and ZM4745A-GS08?

A: Both parts share the same 16 V nominal voltage, 1 W power rating, and ±5% tolerance. ZM4745A-GS08 has higher impedance (16 Ohms versus 10 Ohms) and higher reverse leakage current (5 µA @ 12.2 V versus 500 nA @ 12 V). Selection depends on whether your circuit design accommodates these parameter variations.

Q: Are all three parts automotive qualified?

A: Yes. ZMY16-GS18, ZMY16-GS08, and ZM4745A-GS08 all carry automotive-grade classification and AEC-Q101 qualification from Vishay General Semiconductor - Diodes Division.

Q: What packaging formats are available?

A: ZMY16-GS18 is supplied in Tape & Reel (TR) format. ZMY16-GS08 is supplied in Cut Tape (CT) format. Both use the DO-213AB (MELF, Glass) package for surface mount assembly. ZM4745A-GS08 is supplied in Tape & Reel (TR) format with the same DO-213AB package.

Q: Can I substitute ZM4745A-GS08 in a circuit designed for ZMY16-GS18?

A: Substitution is possible if your circuit design tolerates the higher impedance (16 Ohms versus 10 Ohms) and higher reverse leakage current (5 µA @ 12.2 V versus 500 nA @ 12 V). The core voltage and power specifications are identical. Circuit validation is necessary to confirm performance within your application's operating parameters.

Q: What is the inventory status for these parts?

A: ZMY16-GS18 has 2,981 pieces in stock. ZMY16-GS08 has 2,800 pieces in stock. ZM4745A-GS08 has 1,527 pieces in stock. All are listed as active products.

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