ZPY75-TAP Zener Diode Equivalent & Substitute Parts

Part Overview

The ZPY75-TAP is a 75 V, 1.3 W Zener diode manufactured by Vishay General Semiconductor - Diodes Division in the DO-204AL (DO-41) axial through-hole package. This component is classified as an automotive-grade diode with AEC-Q101 qualification and maintains active product status. Substitute parts are identified to address packaging format availability, inventory requirements, or supply chain alternatives while maintaining electrical and mechanical compatibility within the specified parameter tolerances.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	75	V
Tolerance	±5%	%
Power - Max	1.3	W
Operating Temperature	175	°C
Package / Case	DO-204AL (DO-41)	Axial
Mounting Type	Through Hole	-
Grade	Automotive	-
Qualification	AEC-Q101	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution eligibility for the ZPY75-TAP is determined by the following critical parameters:

Electrical Compatibility Requirements:

Zener voltage: 75 V nominal
Tolerance: ±5%
Maximum power dissipation: 1.3 W
Operating temperature range: 175°C maximum

Mechanical & Packaging Compatibility:

Package type: DO-204AL (DO-41) axial through-hole
Mounting configuration: Through-hole assembly

Compliance & Qualification:

Automotive grade classification
AEC-Q101 qualification
ROHS3 compliance
REACH unaffected status

The substitute parts 1N4761A-TAP and 1N4761A-TR meet all critical electrical parameters (75 V nominal, ±5% tolerance, 1.3 W maximum power) and maintain identical package specifications. Both substitutes are manufactured by the same supplier (Vishay General Semiconductor - Diodes Division), carry automotive qualification, and comply with all regulatory requirements. The primary distinction between substitute options is packaging format: 1N4761A-TAP is supplied in Cut Tape (CT) format, while 1N4761A-TR is also supplied in Cut Tape (CT) format.

Parameter Comparison

Parameter	ZPY75-TAP	1N4761A-TAP	1N4761A-TR
Manufacturer	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Category	Diodes, Zener	Diodes, Zener	Diodes, Zener
Voltage - Zener (Nom)	75 V	75 V	75 V
Tolerance	±5%	±5%	±5%
Power - Max	1.3 W	1.3 W	1.3 W
Operating Temperature	175°C	175°C (TJ)	175°C (TJ)
Package / Case	DO-204AL (DO-41)	DO-204AL (DO-41)	DO-204AL (DO-41)
Mounting Type	Through Hole	Through Hole	Through Hole
Grade	Automotive	Automotive	Automotive
Qualification	AEC-Q101	AEC-Q101	AEC-Q101
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Format	Tape & Box (TB)	Cut Tape (CT)	Cut Tape (CT)
Product Status	Active	Active	Active

Engineering Selection Recommendations

All three part numbers—ZPY75-TAP, 1N4761A-TAP, and 1N4761A-TR—are functionally equivalent for 75 V, 1.3 W Zener diode applications. Selection between these options is based on packaging and supply availability rather than electrical performance differences.

ZPY75-TAP is supplied in Tape & Box (TB) format with 2,907 pieces in stock. This packaging format is suitable for applications requiring boxed component quantities or where tape-and-reel handling is not the primary assembly method.

1N4761A-TAP is supplied in Cut Tape (CT) format with 15,100 pieces in stock. This packaging option provides higher inventory availability and is compatible with automated tape-fed assembly equipment.

1N4761A-TR is supplied in Cut Tape (CT) format with 4,729 pieces in stock. This option also supports automated assembly processes with moderate inventory levels.

All three parts maintain identical electrical specifications, automotive-grade classification, AEC-Q101 qualification, and ROHS3 compliance. Selection should prioritize assembly process requirements and supply chain logistics.

Frequently Asked Questions (FAQ)

Q: Can 1N4761A-TAP or 1N4761A-TR be used as direct replacements for ZPY75-TAP in circuit applications?

A: Yes. Both substitute parts meet the identical electrical specifications: 75 V nominal Zener voltage with ±5% tolerance, 1.3 W maximum power dissipation, and 175°C operating temperature. All three parts are housed in the DO-204AL (DO-41) axial through-hole package and carry automotive AEC-Q101 qualification.

Q: What is the difference between the packaging formats (TB, CT)?

A: ZPY75-TAP is supplied in Tape & Box (TB) format, which includes boxed quantities suitable for manual assembly or non-automated processes. Both 1N4761A-TAP and 1N4761A-TR are supplied in Cut Tape (CT) format, which is optimized for automated pick-and-place assembly equipment and tape-fed component feeders.

Q: Are there electrical parameter differences between ZPY75-TAP and the 1N4761A variants?

A: The primary electrical specifications are identical. However, the 1N4761A variants specify additional parameters: Impedance (Max) of 175 Ohms, Current - Reverse Leakage of 5 µA @ 56 V, and Voltage - Forward (Vf) (Max) of 1.2 V @ 200 mA. The ZPY75-TAP specifies Impedance (Max) of 70 Ohms and Current - Reverse Leakage of 500 nA @ 56 V. These differences reflect measurement conditions and do not affect functional substitution for standard 75 V Zener diode applications.

Q: Do all three parts comply with automotive and environmental standards?

A: Yes. All three parts are classified as automotive-grade components with AEC-Q101 qualification, ROHS3 compliance, REACH unaffected status, and Moisture Sensitivity Level (MSL) 1 (Unlimited). All parts are manufactured by Vishay General Semiconductor - Diodes Division and maintain active product status.

Q: Which part should be selected for high-volume automated assembly?

A: For automated assembly processes, either 1N4761A-TAP or 1N4761A-TR is recommended due to Cut Tape (CT) packaging compatibility with tape-fed component feeders. 1N4761A-TAP offers higher inventory availability (15,100 pieces) compared to 1N4761A-TR (4,729 pieces).

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