1N4730A_S00Z Equivalent & Substitute Parts

Part Overview

The 1N4730A_S00Z is a Zener diode rated at 3.9 V nominal voltage with 1 W maximum power dissipation in a through-hole DO-41 package. This component is manufactured by onsemi and is classified as obsolete. Due to its obsolete status, identifying equivalent substitute parts with matching electrical and mechanical specifications is necessary to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

1N4730A_S00Z

onsemiIn Stock: 11601N4730A_S00Z Datasheet

Current PartRFQ

1N4730A BK TIN/LEAD

Central Semiconductor CorpIn Stock: 29901N4730A BK TIN/LEAD Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1N4730A_S00Z is determined by strict equivalence across the following critical parameters:

• Zener Voltage (Vz): 3.9 V nominal with ±5% tolerance
• Power Rating: 1 W maximum dissipation
• Impedance (Zzt): 9 Ohms maximum
• Reverse Leakage Current: 50 µA @ 1 V
• Operating Temperature Range: -65°C to 200°C (TJ)
• Package Type: DO-41 through-hole axial configuration
• Electrical Characteristics: Identical voltage regulation and thermal performance specifications

Substitute parts must match all electrical parameters and maintain the same through-hole DO-41 package form factor to ensure direct replacement capability without circuit board redesign or layout modification.

Parameter Comparison

Engineering Selection Recommendations

The 1N4730A BK TIN/LEAD manufactured by Central Semiconductor Corp is a parametric equivalent to the 1N4730A_S00Z. This substitute part maintains identical electrical specifications across all critical parameters including zener voltage, power rating, impedance, and reverse leakage characteristics.

The substitute part is classified as Active product status, ensuring ongoing availability and supply chain continuity. The substitute part carries RoHS3 compliance certification, whereas the original part status is not specified for RoHS compliance. Both parts are REACH Unaffected and classified under ECCN EAR99 and HTSUS 8541.10.0050.

The through-hole DO-41 package configuration is identical between both parts, enabling direct mechanical and electrical substitution without circuit board modification. The substitute part is available in bulk packaging with 2959 pieces in stock, compared to 1098 pieces of the original part.

Frequently Asked Questions (FAQ)

Q: Can the 1N4730A BK TIN/LEAD directly replace the 1N4730A_S00Z in existing designs?

A: Yes. Both parts are electrically and mechanically equivalent. The 1N4730A BK TIN/LEAD maintains identical zener voltage (3.9 V), power rating (1 W), impedance (9 Ohms), reverse leakage current (50 µA @ 1 V), and operating temperature range (-65°C to 200°C). The DO-41 through-hole package is identical, permitting direct substitution without circuit board redesign.

Q: What is the significance of the ±5% tolerance specification?

A: The ±5% tolerance indicates the acceptable deviation range of the zener voltage from the nominal 3.9 V specification. Both the original and substitute parts share this tolerance, ensuring equivalent voltage regulation performance within the same operational parameters.

Q: Are there packaging differences between the original and substitute parts?

A: Both parts use the DO-41 axial through-hole package. The original part is supplied in standard packaging, while the substitute is available in bulk packaging. The physical form factor and pin configuration are identical.

Q: What is the impedance (Zzt) parameter and why is it important for substitution?

A: Impedance (Zzt) at maximum rated current defines the dynamic resistance of the zener diode during regulation. Both parts specify 9 Ohms maximum impedance, ensuring equivalent voltage stability and transient response characteristics in voltage regulation circuits.

Q: Does the substitute part meet compliance requirements?

A: The 1N4730A BK TIN/LEAD is RoHS3 compliant and REACH Unaffected. Both parts are classified under ECCN EAR99 and HTSUS 8541.10.0050, meeting standard regulatory requirements for electronic component distribution.

Q: What is the reverse leakage current specification and its relevance?

A: Reverse leakage current (50 µA @ 1 V) specifies the maximum current flowing through the diode when reverse bias is applied at 1 V. Identical specifications between both parts ensure equivalent leakage performance and circuit behavior in reverse bias conditions.