1N4693-TP Equivalent & Substitute Parts

Part Overview

The 1N4693-TP is a Zener diode rated at 7.5 V nominal voltage with 500 mW power dissipation capability, housed in a DO-35 (DO-204AH) axial through-hole package. Manufactured by Micro Commercial Co, this component is classified as obsolete. Due to its obsolete status and limited current inventory availability (981 pieces), identification of active equivalent parts is necessary to ensure supply chain continuity and support for ongoing production requirements.

Substiute Parts

1N4693-TP

Micro Commercial CoIn Stock: 10581N4693-TP Datasheet

Current PartRFQ

BZX79C7V5-T50A

Fairchild SemiconductorIn Stock: 80664BZX79C7V5-T50A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1N4693-TP is determined by strict equivalence across the following electrical and mechanical parameters:

• Zener Voltage (Vz): 7.5 V nominal with ±5% tolerance
• Power Dissipation: 500 mW maximum rating
• Forward Voltage (Vf): 1.5 V maximum at 100 mA forward current
• Package Type: DO-35 (DO-204AH) axial through-hole configuration
• Mounting: Through-hole technology for PCB insertion

The substitute part BZX79C7V5-T50A meets all specified electrical parameters and maintains identical package geometry, enabling direct functional replacement in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

The BZX79C7V5-T50A from Fairchild Semiconductor is a direct functional equivalent to the 1N4693-TP. Selection of this substitute part is supported by the following factors:

• Electrical Equivalence: All critical electrical parameters—zener voltage, tolerance, power rating, and forward voltage—are identical to the original part.
• Package Compatibility: Both components utilize the DO-35 (DO-204AH) axial through-hole package, ensuring mechanical and PCB-level compatibility without layout modifications.
• Active Product Status: The BZX79C7V5-T50A maintains active production status with significantly higher inventory availability (80,644 pieces), providing supply chain reliability.
• Regulatory Compliance: Both parts share identical ECCN (EAR99) and HTSUS (8541.10.0050) classifications, maintaining compliance consistency.
• Temperature Rating: Operating temperature specifications are equivalent at 200°C maximum junction temperature.

Frequently Asked Questions (FAQ)

Q: Can the BZX79C7V5-T50A be used as a direct replacement for the 1N4693-TP without circuit modifications?

A: Yes. The BZX79C7V5-T50A is electrically and mechanically equivalent. All critical parameters—zener voltage, power dissipation, forward voltage, and package type—are identical, enabling direct substitution without circuit redesign or PCB layout changes.

Q: What is the primary reason for substituting the 1N4693-TP?

A: The 1N4693-TP is classified as obsolete. The BZX79C7V5-T50A is an active product with substantially higher inventory availability, ensuring long-term supply chain continuity.

Q: Are there any differences in the reverse leakage current specifications between these parts?

A: The 1N4693-TP specifies 10 µA reverse leakage at 5.7 V, while the BZX79C7V5-T50A specifies 1 µA at 5 V. Both values are within acceptable operating parameters for typical zener diode applications. The lower leakage specification of the substitute part represents an improvement in performance characteristics.

Q: Do both parts have the same physical dimensions and pin configuration?

A: Yes. Both components are housed in the DO-35 (DO-204AH) axial package with identical physical dimensions and lead configuration, allowing direct PCB mounting without modification.

Q: Are there any compliance or regulatory differences between the two parts?

A: No. Both parts share identical ECCN (EAR99) and HTSUS (8541.10.0050) classifications, maintaining regulatory compliance consistency.

Q: What is the impedance specification for the BZX79C7V5-T50A?

A: The BZX79C7V5-T50A specifies a maximum impedance (Zzt) of 15 Ohms. This parameter was not provided for the 1N4693-TP and does not affect substitution compatibility.