1N6014B-TP Zener Diode Equivalent & Substitute Parts

Part Overview

The 1N6014B-TP is a 39 V, 500 mW Zener diode manufactured by Micro Commercial Co in a DO-35 axial through-hole package. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity. The 1N6014B-TP remains available in inventory (852 pcs), but obsolescence status necessitates qualification of active alternative components that maintain electrical and mechanical compatibility.

Substiute Parts

1N6014B-TP

Micro Commercial CoIn Stock: 8851N6014B-TP Datasheet

Current PartRFQ

BZX55C39-TAP

Vishay General Semiconductor - Diodes DivisionIn Stock: 28456BZX55C39-TAP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1N6014B-TP is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Matching Parameters:

• Zener voltage: 39 V nominal with ±5% tolerance
• Power dissipation rating: 500 mW maximum
• Reverse leakage current: 100 nA @ 30 V
• Forward voltage: 1.5 V maximum @ specified forward current
• Package type: DO-35 axial through-hole configuration
• RoHS3 compliance status

The BZX55C39-TAP qualifies as a direct substitute based on matching all critical electrical specifications and package requirements. Both components share identical zener voltage, tolerance, power rating, and reverse leakage characteristics. The substitute maintains through-hole axial mounting compatibility and RoHS3 compliance. Differences in impedance (90 Ohms vs. 130 Ohms maximum) and forward voltage test current (200 mA vs. 100 mA) represent improved performance characteristics in the substitute part and do not preclude substitution.

Parameter Comparison

Engineering Selection Recommendations

The BZX55C39-TAP is a qualified substitute for the 1N6014B-TP based on electrical parameter equivalence and package compatibility. The substitute component is manufactured by Vishay General Semiconductor - Diodes Division and maintains active product status, ensuring long-term availability and supply chain continuity.

Compliance and Qualification:

• Both components are ROHS3 compliant
• BZX55C39-TAP carries AEC-Q101 automotive qualification and REACH unaffected status, providing additional quality assurance
• Identical zener voltage (39 V), tolerance (±5%), power rating (500 mW), and reverse leakage specifications ensure functional equivalence

Design Considerations:

• The substitute exhibits lower maximum impedance (90 Ohms vs. 130 Ohms), which represents improved voltage regulation characteristics
• Operating temperature range of the substitute extends to 175°C, which is 25°C lower than the original part's 200°C maximum. Applications requiring operation above 175°C require evaluation against actual thermal requirements
• Both components utilize identical DO-35 axial through-hole packaging, permitting direct board-level substitution without layout modification

Selection of the BZX55C39-TAP is appropriate for applications where the 1N6014B-TP is specified, provided operating temperature requirements do not exceed 175°C.

Frequently Asked Questions (FAQ)

Q: Can the BZX55C39-TAP be used as a direct replacement for the 1N6014B-TP in existing designs?

A: Yes. Both components share identical zener voltage (39 V), tolerance (±5%), power rating (500 mW), reverse leakage current (100 nA @ 30 V), and DO-35 axial through-hole package configuration. Direct substitution is permissible at the board level without circuit modification.

Q: What is the significance of the impedance difference between these parts?

A: The BZX55C39-TAP exhibits maximum impedance of 90 Ohms compared to 130 Ohms for the 1N6014B-TP. Lower impedance indicates improved voltage regulation and reduced dynamic resistance, representing enhanced performance. This difference does not preclude substitution and typically benefits circuit performance.

Q: Are there temperature limitations when substituting the BZX55C39-TAP?

A: The BZX55C39-TAP operates across -65°C to 175°C, while the 1N6014B-TP operates to 200°C. Applications requiring sustained operation above 175°C must be evaluated against actual thermal requirements. For applications within the -65°C to 175°C range, no temperature-related limitations apply.

Q: Do both components require identical PCB footprints?

A: Yes. Both the 1N6014B-TP and BZX55C39-TAP utilize the DO-35 axial through-hole package with identical pin spacing and lead configuration. No PCB layout modification is required for substitution.

Q: What compliance certifications does the substitute part carry?

A: The BZX55C39-TAP is ROHS3 compliant, AEC-Q101 qualified for automotive applications, and REACH unaffected. The original 1N6014B-TP is ROHS3 compliant. Both components meet regulatory requirements for industrial and commercial applications.

Q: Why is the 1N6014B-TP classified as obsolete?

A: Obsolescence status indicates the manufacturer has discontinued production. The BZX55C39-TAP maintains active product status with substantial inventory availability (28,366 pcs), ensuring reliable supply for ongoing production and design support.

Q: Are there electrical performance differences that affect circuit behavior?

A: Both components meet identical zener voltage, tolerance, power, and leakage specifications. The lower impedance of the substitute (90 Ohms vs. 130 Ohms) provides superior voltage regulation. No adverse circuit behavior results from substitution; performance typically improves.