2EZ22D5-TP Zener Diode Equivalent & Substitute Parts

Part Overview

The 2EZ22D5-TP is a 22 V, 2 W Zener diode manufactured by Micro Commercial Co in DO-41 through-hole packaging. This component is classified as Active and RoHS3 compliant. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility exist, enabling direct replacement in circuit applications where the primary part becomes unavailable or when alternative sourcing is required.

Substiute Parts

2EZ22D5-TP

Micro Commercial CoIn Stock: 22172EZ22D5-TP Datasheet

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1N4748A

Lumimax Optoelectronic TechnologyIn Stock: 107331N4748A Datasheet

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1N4748ATR

onsemiIn Stock: 219881N4748ATR Datasheet

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2EZ22D5

Microsemi CorporationIn Stock: 77372EZ22D5 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Primary Matching Parameters:

• Zener voltage: 22 V nominal
• Tolerance: ±5%
• Mounting type: Through Hole
• Package compatibility: DO-41 or DO-204AL (DO-41)

Secondary Compatibility Factors:

• Power rating: 2 W (primary part specification)
• Forward voltage: 1.2 V @ 200 mA
• Impedance: 12 Ohms maximum
• Reverse leakage: 500 nA @ 16.7 V

Substitute parts are grouped into two categories:

Category A - Full Electrical Equivalents (2 W Power Rating): Parts maintaining identical power dissipation capacity, impedance, and reverse leakage characteristics.

Category B - Reduced Power Rating Substitutes (1 W Power Rating): Parts with lower maximum power dissipation but matching zener voltage, tolerance, and forward voltage specifications. These substitutes are applicable in circuits where power dissipation does not exceed 1 W.

Parameter Comparison

Engineering Selection Recommendations

2EZ22D5 (Microsemi Corporation): This substitute maintains full electrical equivalence with the primary part, including 2 W power rating, 12 Ohms impedance, and 500 nA reverse leakage. Both parts are ROHS3 compliant and REACH unaffected. The 2EZ22D5 operates across -65°C to 150°C, providing extended low-temperature performance compared to the primary part. This substitute is suitable for direct replacement in all applications where the 2EZ22D5-TP is specified.

1N4748ATR (onsemi): This substitute provides equivalent zener voltage and tolerance specifications with through-hole DO-41 packaging. The 1N4748ATR is rated for 1 W maximum power dissipation and exhibits 23 Ohms impedance with 5 µA reverse leakage. ROHS3 compliance and REACH unaffected status are maintained. This substitute is applicable in circuits where power dissipation remains below 1 W. The extended operating temperature range (-65°C to 200°C) provides enhanced thermal performance.

1N4748A (Lumimax Optoelectronic Technology): This substitute matches the primary part in zener voltage, tolerance, and forward voltage specifications. The 1N4748A is rated for 1 W maximum power dissipation with 23 Ohms impedance and 5 µA reverse leakage. RoHS compliance and REACH unaffected status are confirmed. This substitute is applicable in circuits where power dissipation does not exceed 1 W. The extended operating temperature range (-65°C to 200°C) is available.

Frequently Asked Questions (FAQ)

Q: Can the 1N4748ATR or 1N4748A be used as direct replacements for the 2EZ22D5-TP in all applications?

A: The 1N4748ATR and 1N4748A are suitable substitutes only in applications where the circuit power dissipation does not exceed 1 W. Both parts are rated for 1 W maximum power, compared to the 2 W rating of the 2EZ22D5-TP. If the circuit requires 2 W power dissipation capability, use the 2EZ22D5 substitute instead.

Q: What is the difference in impedance between the main part and the 1N4748 series substitutes?

A: The 2EZ22D5-TP and 2EZ22D5 both specify 12 Ohms maximum impedance. The 1N4748ATR and 1N4748A specify 23 Ohms maximum impedance. Higher impedance may affect circuit performance in applications sensitive to zener dynamic impedance characteristics.

Q: Are all substitute parts available in the same packaging?

A: All substitute parts are available in DO-41 through-hole axial packaging, compatible with the primary part. The 2EZ22D5 is supplied in DO-204AL (DO-41) packaging, while the 1N4748ATR is supplied in DO-41 packaging. Both are mechanically and electrically compatible for through-hole mounting applications.

Q: What is the reverse leakage current difference between the main part and substitutes?

A: The 2EZ22D5-TP and 2EZ22D5 specify 500 nanoamperes reverse leakage at 16.7 V. The 1N4748ATR and 1N4748A specify 5 microamperes reverse leakage at 16.7 V. This tenfold difference may be significant in applications requiring minimal leakage current.

Q: Do all parts meet the same compliance standards?

A: The 2EZ22D5-TP, 2EZ22D5, and 1N4748ATR are ROHS3 compliant. The 1N4748A is RoHS compliant. All four parts are REACH unaffected. Compliance requirements for your specific application should be verified against your procurement standards.

Q: What is the operating temperature range difference?

A: The 2EZ22D5-TP operates from -55°C to 150°C. The 2EZ22D5 operates from -65°C to 150°C. The 1N4748ATR and 1N4748A both operate from -65°C to 200°C. Selection should be based on the thermal requirements of your specific application environment.