TZX10B-TAP Equivalent & Substitute Parts

Part Overview

The TZX10B-TAP is a 10 V, 500 mW Zener diode manufactured by Vishay General Semiconductor - Diodes Division in DO-35 through-hole package. This component is classified as Active product status with AEC-Q101 automotive qualification. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or application-specific requirements within the allowed parameter ranges.

Substiute Parts

TZX10B-TAP

Vishay General Semiconductor - Diodes DivisionIn Stock: 1113TZX10B-TAP Datasheet

Current PartRFQ

1N4104 TR PBFREE

Central Semiconductor CorpIn Stock: 134871N4104 TR PBFREE Datasheet

MFR RecommendedRFQ

1N5240B

Microchip TechnologyIn Stock: 18341N5240B Datasheet

MFR RecommendedRFQ

1N5240BTR

Fairchild SemiconductorIn Stock: 407931N5240BTR Datasheet

MFR RecommendedRFQ

BZX79C10

Taiwan Semiconductor CorporationIn Stock: 3500BZX79C10 Datasheet

MFR RecommendedRFQ

BZX79C10-T50A

onsemiIn Stock: 9415BZX79C10-T50A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Electrical Compatibility Criteria:

• Zener voltage (Nominal): 10 V (exact match required)
• Power rating: 500 mW or greater
• Operating temperature range: minimum -65°C to 175°C
• Package type: DO-35 (DO-204AH) through-hole axial configuration

Mechanical Compatibility Criteria:

• Through-hole mounting type
• DO-35 axial package footprint

All substitute parts listed maintain the 10 V nominal zener voltage and support through-hole mounting in DO-35 package. Variations in impedance, forward voltage, and reverse leakage current remain within acceptable ranges for zener diode applications. Parts with power ratings of 500 mW or greater satisfy the maximum power dissipation requirement.

Parameter Comparison

Engineering Selection Recommendations

Full Electrical and Mechanical Equivalents (500 mW Power Rating):

The following parts provide complete substitution with matching 500 mW power ratings and compatible operating temperature ranges:

• 1N5240B (Microchip Technology): Matches electrical specifications with 500 mW power rating and -65 to 175°C operating range. Note: RoHS non-compliant status requires verification against application requirements.

• 1N5240BTR (Fairchild Semiconductor): Provides 500 mW power rating with extended operating temperature to 200°C. Electrical parameters align with primary specifications.

• BZX79C10 (Taiwan Semiconductor Corporation): Delivers 500 mW power rating with ROHS3 compliance and -65 to 175°C operating range. Lower reverse leakage current (200 nA) compared to main part.

• BZX79C10-T50A (onsemi): Offers 500 mW power rating with ROHS3 compliance and extended operating temperature to 200°C. Lower reverse leakage current specification.

Reduced Power Rating Alternative:

• 1N4104 TR PBFREE (Central Semiconductor Corp): Provides 250 mW power rating with ROHS3 compliance and extended operating temperature to 200°C. This part is suitable only for applications where maximum power dissipation does not exceed 250 mW.

Compliance Considerations:

All substitute parts maintain AEC-Q101 equivalent performance through DO-35 package standardization and 10 V nominal zener voltage. ROHS3 compliance is confirmed for TZX10B-TAP, BZX79C10, BZX79C10-T50A, and 1N4104 TR PBFREE. The 1N5240B is identified as RoHS non-compliant and requires application-specific compliance verification.

Frequently Asked Questions (FAQ)

Q: Can 1N4104 TR PBFREE replace TZX10B-TAP in all applications?

A: The 1N4104 TR PBFREE is electrically compatible at 10 V nominal zener voltage and through-hole DO-35 package. However, its 250 mW maximum power rating is lower than the 500 mW specification of TZX10B-TAP. Substitution is valid only for applications where power dissipation does not exceed 250 mW.

Q: What is the difference between BZX79C10 and BZX79C10-T50A?

A: Both parts share identical electrical specifications (10 V, 500 mW, ±5% tolerance, 20 Ohms impedance, 200 nA reverse leakage). The primary difference is operating temperature range: BZX79C10 operates -65 to 175°C, while BZX79C10-T50A extends to 200°C. Packaging differs as BZX79C10 is supplied in Tape & Reel format and BZX79C10-T50A in Cut Tape format.

Q: Are all substitute parts available in the same DO-35 package?

A: All substitute parts are specified for DO-204AH (DO-35) axial through-hole package configuration. Mechanical footprint compatibility is confirmed across all listed alternatives.

Q: Which substitute part has the lowest reverse leakage current?

A: BZX79C10 and BZX79C10-T50A both specify 200 nA reverse leakage current at 7 V, which is lower than the TZX10B-TAP specification of 1 µA at 7.5 V. The 1N5240B and 1N5240BTR specify 3 µA at 8 V, and 1N4104 TR PBFREE specifies 1 µA at 7.6 V.

Q: Is RoHS compliance required for my application?

A: RoHS compliance status varies among substitutes. TZX10B-TAP, 1N4104 TR PBFREE, BZX79C10, and BZX79C10-T50A are ROHS3 compliant. The 1N5240B is identified as RoHS non-compliant. Application requirements determine whether RoHS compliance is mandatory.

Q: What is the impact of impedance differences between parts?

A: Impedance values range from 17 Ohms (1N5240B, 1N5240BTR) to 200 Ohms (1N4104 TR PBFREE). Lower impedance values indicate better voltage regulation characteristics. The TZX10B-TAP impedance of 25 Ohms is moderate within this range. Impedance selection depends on specific circuit regulation requirements.

Q: Can I use a substitute part with extended operating temperature range?

A: Yes. Parts with extended operating temperature ranges (1N4104 TR PBFREE, 1N5240BTR, BZX79C10-T50A extend to 200°C) are compatible with applications requiring the standard -65 to 175°C range. Extended temperature capability provides additional design margin without compromising performance.