BZX85C36 A0G Equivalent & Substitute Parts

Part Overview

The BZX85C36 A0G is a 36 V, 1.3 W Zener diode manufactured by Taiwan Semiconductor Corporation in the DO-204AL (DO-41) axial through-hole package. This component is classified as an active product with RoHS3 compliance and REACH unaffected status. Zener diodes of this specification are used in voltage regulation, overvoltage protection, and reference voltage circuits. Substitute parts are identified based on matching nominal Zener voltage, tolerance, power rating, package type, and operating temperature range to ensure functional equivalence in circuit applications.

Substiute Parts

BZX85C36 A0G

Taiwan Semiconductor CorporationIn Stock: 863BZX85C36 A0G Datasheet

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1N4753A

Lumimax Optoelectronic TechnologyIn Stock: 391161N4753A Datasheet

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1N4753A-T50A

Fairchild SemiconductorIn Stock: 876481N4753A-T50A Datasheet

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1N5938BRLG

onsemiIn Stock: 59811N5938BRLG Datasheet

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BZX85B36-TR

Vishay General Semiconductor - Diodes DivisionIn Stock: 24863BZX85B36-TR Datasheet

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BZX85C36-TAP

Vishay General Semiconductor - Diodes DivisionIn Stock: 31041BZX85C36-TAP Datasheet

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BZX85C36-TR

Vishay General Semiconductor - Diodes DivisionIn Stock: 25941BZX85C36-TR Datasheet

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ZPY36-TAP

Vishay General Semiconductor - Diodes DivisionIn Stock: 5603ZPY36-TAP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BZX85C36 A0G are grouped based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

• Nominal Zener voltage: 36 V
• Tolerance: ±5% (or tighter)
• Power rating: 1.3 W (or higher)
• Package type: DO-204AL (DO-41) axial through-hole
• Operating temperature range: -65°C to 200°C (or compatible subset)

Secondary Considerations:

• Impedance (Zzt): Maximum 40 Ohms or lower
• Reverse leakage current: 500 nA or lower at specified voltage
• Forward voltage: 1.2 V or lower at specified current
• RoHS and REACH compliance status

Parts meeting all primary criteria are classified as direct substitutes. Parts with higher power ratings (3 W) are acceptable substitutes for applications where thermal margin is beneficial. Parts with tighter tolerance (±2%) or automotive qualification (AEC-Q101) provide enhanced performance characteristics but remain functionally compatible.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Identical Specifications):

BZX85C36-TAP and BZX85C36-TR are direct substitutes for the BZX85C36 A0G. Both are manufactured by Vishay General Semiconductor - Diodes Division, feature identical nominal Zener voltage (36 V), tolerance (±5%), power rating (1.3 W), impedance (40 Ω), and package type (DO-204AL DO-41). Both are ROHS3 compliant and carry AEC-Q101 automotive qualification. The operating temperature range is -55°C to 175°C, which is a subset of the main part's range but suitable for most industrial and commercial applications.

High-Power Substitute:

1N5938BRLG manufactured by onsemi is a 3 W Zener diode at 36 V with ±5% tolerance. This part provides increased power dissipation capability while maintaining the same nominal voltage and package type. The impedance is 38 Ω (lower than the main part), and reverse leakage is 1 µA at 27.4 V. This part is ROHS3 compliant and suitable for applications requiring higher thermal margin.

Lower-Power Substitutes:

1N4753A (Lumimax) and 1N4753A-T50A (Fairchild Semiconductor) are 1 W Zener diodes at 36 V with ±5% tolerance. These parts have lower power ratings than the main part and higher impedance (50 Ω). They are suitable for applications where the 1.3 W rating of the main part exceeds circuit requirements. Both maintain the -65°C to 200°C operating temperature range and are RoHS compliant.

Enhanced-Tolerance Substitute:

BZX85B36-TR manufactured by Vishay features ±2% tolerance compared to the ±5% tolerance of the main part. This tighter tolerance provides improved voltage regulation accuracy. The part is ROHS3 compliant, AEC-Q101 qualified, and carries automotive grade designation. Operating temperature range is -55°C to 175°C.

Low-Impedance Substitute:

ZPY36-TAP manufactured by Vishay features the lowest impedance (25 Ω) among all substitutes while maintaining 36 V nominal voltage, 1.3 W power rating, and ±5% tolerance. This part is ROHS3 compliant and AEC-Q101 qualified. Operating temperature range is -55°C to 175°C.

Frequently Asked Questions (FAQ)

Q: Can I use 1N4753A as a direct replacement for BZX85C36 A0G?

A: 1N4753A is functionally compatible but with reduced power rating (1 W versus 1.3 W). It maintains the same 36 V nominal voltage, ±5% tolerance, and DO-41 package. Use this substitute only in applications where power dissipation does not exceed 1 W. Higher impedance (50 Ω versus 40 Ω) may affect voltage regulation characteristics in some circuits.

Q: What is the difference between BZX85C36-TR and BZX85B36-TR?

A: Both parts are manufactured by Vishay and feature identical 36 V nominal voltage, 1.3 W power rating, 40 Ω impedance, and DO-41 package. The primary difference is tolerance: BZX85C36-TR has ±5% tolerance while BZX85B36-TR has ±2% tolerance. BZX85B36-TR provides tighter voltage regulation accuracy. Both are ROHS3 compliant and AEC-Q101 qualified.

Q: Is 1N5938BRLG suitable for my application if I need 1.3 W?

A: Yes. 1N5938BRLG is a 3 W Zener diode at 36 V, which exceeds the 1.3 W requirement of the main part. This higher power rating provides additional thermal margin and is suitable for applications requiring robust overvoltage protection. The impedance is 38 Ω (lower than the main part), which may improve voltage regulation in some circuits.

Q: Do all substitute parts have the same operating temperature range?

A: No. The main part BZX85C36 A0G operates from -65°C to 200°C. Vishay parts (BZX85C36-TAP, BZX85C36-TR, BZX85B36-TR, ZPY36-TAP) operate from -55°C to 175°C. Lumimax and Fairchild 1N4753A variants operate from -65°C to 200°C. Select substitutes based on your application's temperature requirements.

Q: What does AEC-Q101 qualification mean?

A: AEC-Q101 is an automotive electronics qualification standard. Parts carrying this qualification (BZX85C36-TAP, BZX85C36-TR, BZX85B36-TR, ZPY36-TAP) have undergone rigorous testing for reliability and performance in automotive environments. These parts are suitable for automotive and high-reliability applications.

Q: Can I use ZPY36-TAP if impedance is critical to my circuit?

A: ZPY36-TAP features 25 Ω impedance, which is lower than the main part's 40 Ω. Lower impedance generally improves voltage regulation and reduces output impedance. If your circuit design depends on specific impedance characteristics, verify that the lower impedance of ZPY36-TAP is compatible with your application requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts are either RoHS or ROHS3 compliant. The main part BZX85C36 A0G is ROHS3 compliant. Lumimax and Fairchild 1N4753A variants are RoHS compliant. Vishay parts and onsemi 1N5938BRLG are ROHS3 compliant. All parts are REACH unaffected.

Q: What is the difference between DO-204AL and DO-41 package designations?

A: DO-204AL and DO-41 refer to the same axial through-hole package for diodes. DO-204AL is the formal JEDEC designation, while DO-41 is the legacy designation. All listed parts use this identical package type and are mechanically and electrically interchangeable.