ZPY22-TAP Equivalent & Substitute Parts

Part Overview

The ZPY22-TAP is an automotive-grade Zener diode manufactured by Vishay General Semiconductor - Diodes Division. This component is a 22 V, 1.3 W through-hole Zener diode in DO-204AL (DO-41) axial package format, supplied in Tape & Box packaging. The device holds Active product status and carries AEC-Q101 automotive qualification. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring 22 V Zener diode functionality.

Substiute Parts

ZPY22-TAP

Vishay General Semiconductor - Diodes DivisionIn Stock: 1082ZPY22-TAP Datasheet

Current PartRFQ

1N4748A-TAP

Vishay General Semiconductor - Diodes DivisionIn Stock: 242211N4748A-TAP Datasheet

DirectRFQ

1N4748A

Lumimax Optoelectronic TechnologyIn Stock: 107331N4748A Datasheet

MFR RecommendedRFQ

1N4748A-T50A

onsemiIn Stock: 10441N4748A-T50A Datasheet

MFR RecommendedRFQ

2EZ22D5

Microsemi CorporationIn Stock: 77372EZ22D5 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ZPY22-TAP is determined by the following critical parameters: nominal Zener voltage (22 V), voltage tolerance (±5%), package type (DO-204AL/DO-41 axial through-hole), and mounting configuration (through-hole). All identified substitute parts maintain these core electrical and mechanical specifications.

Substitute parts are grouped into two categories based on power rating:

Category 1: Equal Power Rating (1.3 W) The 1N4748A-TAP maintains identical electrical specifications and packaging to the ZPY22-TAP, with the primary difference being packaging format (Cut Tape versus Tape & Box).

Category 2: Reduced Power Rating (1 W) The 1N4748A (Lumimax) and 1N4748A-T50A (onsemi) operate at 1 W maximum power, representing a 23% reduction from the ZPY22-TAP specification. These parts are suitable for applications where power dissipation requirements do not exceed 1 W.

Category 3: Increased Power Rating (2 W) The 2EZ22D5 (Microsemi) provides 2 W maximum power rating, offering 54% additional power handling capacity compared to the ZPY22-TAP. This part is applicable to designs requiring higher power dissipation margins.

All substitute parts maintain the 22 V nominal Zener voltage, ±5% tolerance, through-hole mounting, and DO-204AL/DO-41 package compatibility.

Parameter Comparison

Engineering Selection Recommendations

1N4748A-TAP (Vishay) This part is the direct equivalent to the ZPY22-TAP with identical electrical specifications and power rating. Both components carry AEC-Q101 automotive qualification and ROHS3 compliance. The 1N4748A-TAP differs only in packaging format (Cut Tape versus Tape & Box), making it suitable for direct substitution in applications where packaging format does not impose constraints.

1N4748A (Lumimax) This part operates at 1 W maximum power, representing a 23% reduction from the ZPY22-TAP specification. The component maintains 22 V nominal voltage and ±5% tolerance. Operating temperature range extends to 200°C. This part is applicable to designs where power dissipation does not exceed 1 W and where automotive qualification is not a requirement.

1N4748A-T50A (onsemi) This part operates at 1 W maximum power with Tape & Box packaging. It carries ROHS3 compliance and maintains 22 V nominal voltage with ±5% tolerance. Operating temperature range extends to 200°C. This part is suitable for applications where power dissipation does not exceed 1 W and where automotive qualification is not a requirement.

2EZ22D5 (Microsemi) This part provides 2 W maximum power rating, offering increased power handling capacity. It maintains 22 V nominal voltage and ±5% tolerance with ROHS3 compliance. Operating temperature range is -65°C to 150°C. This part is applicable to designs requiring higher power dissipation margins or where thermal management benefits from increased power rating.

Frequently Asked Questions (FAQ)

Q: Can the 1N4748A-TAP be used as a direct replacement for the ZPY22-TAP? A: Yes. Both parts share identical electrical specifications (22 V, 1.3 W, ±5% tolerance), package type (DO-204AL/DO-41), and mounting configuration (through-hole). The primary difference is packaging format (Cut Tape versus Tape & Box). Both carry AEC-Q101 automotive qualification and ROHS3 compliance.

Q: What is the difference between the ZPY22-TAP and the 1 W rated alternatives? A: The 1N4748A (Lumimax) and 1N4748A-T50A (onsemi) operate at 1 W maximum power compared to the ZPY22-TAP's 1.3 W rating. This represents a 23% reduction in power handling capacity. These parts are suitable only for applications where power dissipation does not exceed 1 W. Both alternatives extend operating temperature to 200°C.

Q: When should the 2EZ22D5 be selected over the ZPY22-TAP? A: The 2EZ22D5 provides 2 W maximum power rating, offering 54% additional power handling capacity. This part is applicable to designs requiring higher power dissipation margins or where thermal management benefits from increased power rating. Operating temperature range is limited to 150°C maximum.

Q: Are all substitute parts automotive qualified? A: The ZPY22-TAP and 1N4748A-TAP carry AEC-Q101 automotive qualification. The 1N4748A (Lumimax), 1N4748A-T50A (onsemi), and 2EZ22D5 do not list automotive qualification in their specifications.

Q: What is the impedance difference between the ZPY22-TAP and substitute parts? A: The ZPY22-TAP specifies 7 Ohms maximum impedance. The 1N4748A-TAP, 1N4748A (Lumimax), and 1N4748A-T50A specify 23 Ohms maximum impedance. The 2EZ22D5 specifies 12 Ohms maximum impedance. Higher impedance values may affect circuit performance in applications sensitive to dynamic impedance characteristics.

Q: Are all substitute parts RoHS compliant? A: Yes. All substitute parts carry either ROHS3 or RoHS compliance status. All parts maintain REACH Unaffected status.

Q: What is the reverse leakage current difference? A: The ZPY22-TAP and 2EZ22D5 specify 500 nA reverse leakage current. The 1N4748A-TAP, 1N4748A (Lumimax), and 1N4748A-T50A specify 5 µA reverse leakage current, representing a 10-fold increase. Applications sensitive to leakage current should account for this difference.

Q: Can these parts be used interchangeably in PCB designs? A: All substitute parts maintain DO-204AL/DO-41 axial through-hole package compatibility, allowing physical interchangeability on PCBs designed for this package type. However, electrical performance differences (power rating, impedance, leakage current) must be evaluated against circuit requirements before substitution.