BZX55C36-TAP Equivalent & Substitute Parts

Part Overview

The BZX55C36-TAP is an automotive-grade Zener diode manufactured by Vishay General Semiconductor - Diodes Division. This through-hole component operates at a nominal Zener voltage of 36 V with a maximum power dissipation of 500 mW. The device is packaged in DO-204AH (DO-35) axial configuration and is qualified to AEC-Q101 automotive standards. The part maintains Active product status with 60,100 units in current inventory. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the specified parameter range, enabling component selection flexibility while preserving circuit functionality and reliability requirements.

Substiute Parts

BZX55C36-TAP
Vishay General Semiconductor - Diodes DivisionIn Stock: 60135BZX55C36-TAP Datasheet
BZX55C36-TAP
Current Part
BZX55B36-TAP
Vishay General Semiconductor - Diodes DivisionIn Stock: 31167BZX55B36-TAP Datasheet
BZX55B36-TAP
Parametric Equivalent

Key Parameters

Parameter Value Unit
Voltage - Zener (Nom) 36 V
Power - Max 500 mW
Impedance (Max) 80 Ohms
Current - Reverse Leakage @ Vr 100 nA @ 27 V nA
Voltage - Forward (Vf) (Max) @ If 1.5 V @ 200 mA V
Operating Temperature Range -65 to 175 °C
Package / Case DO-204AH, DO-35, Axial
Qualification AEC-Q101
Grade Automotive

Substitute Part Grouping Explanation

Substitution of the BZX55C36-TAP is determined by equivalence across the following critical parameters:

Electrical Equivalence Criteria:

  • Nominal Zener voltage: 36 V (fixed requirement)
  • Maximum power dissipation: 500 mW (fixed requirement)
  • Impedance (Max): 80 Ohms (fixed requirement)
  • Reverse leakage current: 100 nA @ 27 V (fixed requirement)
  • Forward voltage: 1.5 V @ 200 mA (fixed requirement)
  • Operating temperature range: -65°C to 175°C (fixed requirement)

Mechanical Equivalence Criteria:

  • Package type: DO-204AH (DO-35) axial through-hole (fixed requirement)
  • Mounting type: Through-hole (fixed requirement)

Compliance Equivalence Criteria:

  • Automotive grade classification (fixed requirement)
  • AEC-Q101 qualification (fixed requirement)
  • RoHS3 compliance (fixed requirement)

The BZX55B36-TAP qualifies as a parametric equivalent substitute. While the tolerance specification differs (±2% versus ±5%), all electrical performance parameters, mechanical packaging, and automotive compliance certifications remain identical. The tighter tolerance of the substitute part does not restrict its use in applications designed for the primary part.

Parameter Comparison

Parameter BZX55C36-TAP (Main) BZX55B36-TAP (Substitute) Match Status
Voltage - Zener (Nom) 36 V 36 V Identical
Tolerance ±5% ±2% Substitute tighter
Power - Max 500 mW 500 mW Identical
Impedance (Max) 80 Ohms 80 Ohms Identical
Current - Reverse Leakage @ Vr 100 nA @ 27 V 100 nA @ 27 V Identical
Voltage - Forward (Vf) (Max) @ If 1.5 V @ 200 mA 1.5 V @ 200 mA Identical
Operating Temperature Range -65°C to 175°C -65°C to 175°C Identical
Package / Case DO-204AH (DO-35) DO-204AH (DO-35) Identical
Mounting Type Through Hole Through Hole Identical
Grade Automotive Automotive Identical
Qualification AEC-Q101 AEC-Q101 Identical
RoHS Status ROHS3 Compliant ROHS3 Compliant Identical
Manufacturer Vishay General Semiconductor - Diodes Division Vishay General Semiconductor - Diodes Division Identical

Engineering Selection Recommendations

Both the BZX55C36-TAP and BZX55B36-TAP maintain Active product status and are manufactured by the same supplier. Both components carry AEC-Q101 automotive qualification and RoHS3 compliance certification, confirming suitability for automotive applications requiring regulatory adherence.

The BZX55B36-TAP substitute part provides identical electrical performance and mechanical compatibility. The tighter tolerance specification (±2% versus ±5%) represents an enhancement rather than a limitation, as it provides improved voltage regulation accuracy without compromising circuit design margins.

Selection between the main part and substitute should be based on inventory availability, lead time requirements, and cost considerations. Both parts are functionally interchangeable within the specified electrical and mechanical parameters.

Frequently Asked Questions (FAQ)

Q: Can the BZX55B36-TAP replace the BZX55C36-TAP in existing designs?

A: Yes. The BZX55B36-TAP is electrically and mechanically equivalent. All critical parameters including Zener voltage, power rating, impedance, leakage current, and forward voltage are identical. Both components share identical package specifications (DO-204AH/DO-35 axial through-hole) and automotive qualifications.

Q: What is the difference between the ±5% and ±2% tolerance specifications?

A: Tolerance defines the allowable deviation of the Zener voltage from the nominal 36 V specification. The BZX55C36-TAP allows ±5% deviation (34.2 V to 37.8 V), while the BZX55B36-TAP allows ±2% deviation (35.28 V to 36.72 V). The tighter tolerance of the substitute part provides more precise voltage regulation and does not restrict its use in applications designed for the primary part.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the BZX55C36-TAP and BZX55B36-TAP carry Automotive grade classification and AEC-Q101 qualification, confirming compliance with automotive reliability and quality standards.

Q: Do the parts require different PCB footprints or mounting procedures?

A: No. Both components use identical DO-204AH (DO-35) axial through-hole packaging. PCB footprints, lead spacing, and mounting procedures are identical.

Q: What is the operating temperature range for both parts?

A: Both the BZX55C36-TAP and BZX55B36-TAP operate across the identical temperature range of -65°C to 175°C, ensuring consistent performance across automotive environmental conditions.

Q: Are both parts RoHS compliant?

A: Yes. Both components are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for electronic component manufacturing and use.

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