Equivalent & Substitute Parts for 1N6010B-TP Zener Diode

Part Overview

The 1N6010B-TP is a 27 V, 500 mW Zener diode in DO-35 axial package manufactured by Micro Commercial Co. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The 1N6010B-TP operates across a temperature range of -65°C to 200°C with ±5% voltage tolerance and is RoHS3 compliant. Substitute parts must maintain the core electrical specifications: 27 V nominal Zener voltage, 500 mW power rating, and DO-35 through-hole package configuration.

Substiute Parts

1N6010B-TP

Micro Commercial CoIn Stock: 8591N6010B-TP Datasheet

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1N5746C

Microchip TechnologyIn Stock: 9171N5746C Datasheet

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1N6010B

Microchip TechnologyIn Stock: 7291N6010B Datasheet

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1N724

Microchip TechnologyIn Stock: 7371N724 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1N6010B-TP Zener diode is determined by the following critical parameters:

Primary Substitution Criteria:

• Zener voltage: 27 V nominal
• Package type: DO-35 axial through-hole
• Power dissipation capability: 500 mW minimum

Secondary Compatibility Factors:

• Voltage tolerance (±5% or tighter acceptable)
• Impedance characteristics (Zzt)
• Reverse leakage current specifications
• Operating temperature range

Substitute parts are grouped into two categories: Full Equivalents (matching all primary and secondary parameters) and Functional Alternatives (matching primary criteria with acceptable deviations in secondary parameters).

Parameter Comparison

Engineering Selection Recommendations

1N6010B (Microchip Technology): This part is the primary substitute for the 1N6010B-TP. It maintains identical electrical specifications including 27 V nominal voltage, ±5% tolerance, 500 mW power rating, and 70 Ohms impedance. The part is in active production status. The operating temperature range is reduced to -65°C to 175°C compared to the original -65°C to 200°C specification. RoHS compliance differs from the original part. This substitute is suitable for applications where the reduced upper temperature limit is acceptable.

1N5746C (Microchip Technology): This part provides improved voltage tolerance at ±1% compared to the ±5% specification of the main part, while maintaining 27 V nominal voltage and 500 mW power rating. The impedance is 80 Ohms, slightly higher than the original 70 Ohms. Operating temperature range is -65°C to 175°C. This substitute is suitable for applications requiring tighter voltage regulation. RoHS compliance differs from the original part.

1N724 (Microchip Technology): This part has a reduced power rating of 250 mW compared to the 500 mW specification of the main part. Voltage tolerance is ±10%, wider than the original ±5%. Impedance is 35 Ohms, significantly lower than the original 70 Ohms. This substitute is suitable only for applications with lower power dissipation requirements and where the wider voltage tolerance is acceptable. Operating temperature range is not specified for this part.

Frequently Asked Questions (FAQ)

Q: Can the 1N5746C replace the 1N6010B-TP in all applications?

A: The 1N5746C maintains the same 27 V nominal voltage and 500 mW power rating in the same DO-35 package. The primary differences are improved voltage tolerance (±1% versus ±5%) and slightly higher impedance (80 Ohms versus 70 Ohms). The operating temperature range is reduced from -65°C to 200°C to -65°C to 175°C. Substitution is valid for applications within the reduced temperature range.

Q: What are the limitations of using the 1N724 as a substitute?

A: The 1N724 has a 250 mW power rating, which is half the 500 mW specification of the 1N6010B-TP. This part is suitable only for applications with lower power dissipation requirements. The voltage tolerance is ±10%, which is wider than the original ±5%. The impedance is 35 Ohms, significantly lower than the original 70 Ohms. Operating temperature range is not specified for this part.

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

A: Yes, all substitute parts listed (1N5746C, 1N6010B, and 1N724) are available in the DO-35 axial through-hole package, ensuring mechanical and electrical compatibility with existing PCB designs.

Q: How do voltage tolerance differences affect circuit performance?

A: The 1N6010B-TP has ±5% voltage tolerance, meaning the actual Zener voltage can range from 25.65 V to 28.35 V. The 1N5746C offers ±1% tolerance (26.73 V to 27.27 V), providing tighter regulation. The 1N724 has ±10% tolerance (24.3 V to 29.7 V), which is wider. Selection depends on the circuit's voltage regulation requirements.

Q: What is the significance of impedance (Zzt) differences?

A: Impedance affects the Zener diode's dynamic response to load changes. The 1N6010B-TP has 70 Ohms impedance. The 1N5746C has 80 Ohms (slightly higher), and the 1N724 has 35 Ohms (significantly lower). Lower impedance provides better transient response, while higher impedance may affect regulation stability under varying load conditions.

Q: Why is the operating temperature range different for substitute parts?

A: The 1N6010B-TP operates from -65°C to 200°C, while the 1N6010B and 1N5746C operate from -65°C to 175°C. Applications requiring operation above 175°C cannot use these substitutes. The 1N724 does not specify an operating temperature range in the provided data.

Q: Are there RoHS compliance considerations for substitution?

A: The 1N6010B-TP is RoHS3 compliant. The substitute parts 1N5746C, 1N6010B, and 1N724 are listed as RoHS non-compliant. Applications subject to RoHS regulations must account for this difference in compliance status.