1N4736A_S00Z Zener Diode Equivalent & Substitute Parts

Part Overview

The 1N4736A_S00Z is a 6.8 V, 1 W Zener diode manufactured by onsemi in a through-hole DO-41 package. This component is classified as obsolete, indicating discontinued production by the original manufacturer. Locating equivalent substitute parts is necessary to maintain design continuity and ensure component availability for repair, maintenance, and new production applications.

Substiute Parts

1N4736A_S00Z

onsemiIn Stock: 7851N4736A_S00Z Datasheet

Current PartRFQ

1N4736A

Lumimax Optoelectronic TechnologyIn Stock: 204081N4736A Datasheet

SimilarRFQ

1N4736A BK PBFREE

Central Semiconductor CorpIn Stock: 9841N4736A BK PBFREE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1N4736A_S00Z are qualified based on electrical and mechanical parameter equivalence. The following criteria determine substitution eligibility:

Electrical Parameters (Must Match):

• Zener voltage: 6.8 V nominal
• Tolerance: ±5%
• Maximum power dissipation: 1 W
• Maximum impedance: 3.5 Ohms
• Reverse leakage current: 10 µA @ 4 V
• Operating temperature range: -65°C ~ 200°C

Mechanical Parameters (Must Match):

• Mounting type: Through Hole
• Package designation: DO-41 or equivalent (DO-204AL, Axial)

All substitute parts listed below satisfy these electrical and mechanical requirements and are therefore direct functional equivalents for the 1N4736A_S00Z.

Parameter Comparison

Engineering Selection Recommendations

1N4736A (Lumimax Optoelectronic Technology)

This substitute part is electrically and mechanically equivalent to the 1N4736A_S00Z. The component is in active production status, ensuring long-term availability. It carries RoHS Compliance certification and maintains REACH Unaffected status. Inventory availability is substantial at 20,300 units.

1N4736A BK PBFREE (Central Semiconductor Corp)

This substitute part is electrically and mechanically equivalent to the 1N4736A_S00Z. The component is in active production status with ROHS3 Compliance and REACH Unaffected status. The part number designation "BK PBFREE" indicates lead-free construction. Inventory availability is 893 units. Packaging is specified as Box format.

Both substitute parts satisfy all electrical and mechanical requirements for direct replacement of the obsolete 1N4736A_S00Z. Selection between these options depends on procurement requirements, inventory availability, and packaging preferences.

Frequently Asked Questions (FAQ)

Q: Can the 1N4736A (Lumimax) directly replace the 1N4736A_S00Z (onsemi)?

A: Yes. Both components share identical electrical specifications: 6.8 V nominal Zener voltage, ±5% tolerance, 1 W maximum power, 3.5 Ohms maximum impedance, and 10 µA reverse leakage current at 4 V. Both are through-hole mounted in DO-41 packages. The Lumimax part is in active production, addressing the obsolescence of the onsemi original.

Q: What is the difference between 1N4736A and 1N4736A BK PBFREE?

A: Both parts are electrically equivalent with identical Zener voltage, power rating, impedance, and leakage specifications. The "BK PBFREE" designation indicates lead-free construction and ROHS3 compliance. The Central Semiconductor part is packaged in Box format, while the Lumimax part uses standard supplier packaging.

Q: Are there any temperature or operating condition differences between these substitutes?

A: No. All three parts operate across the identical temperature range of -65°C to 200°C junction temperature. Operating conditions and thermal performance are equivalent.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. All substitute parts use the DO-41 through-hole package with axial lead configuration. Physical dimensions and lead spacing are standardized for this package type, enabling direct board-level substitution without design modification.

Q: What compliance certifications should I verify for my application?

A: Both active substitute parts maintain REACH Unaffected status. The Lumimax part carries RoHS Compliance certification. The Central Semiconductor part carries ROHS3 Compliance certification. Verify that your application requirements align with the specific RoHS version applicable to your market and end-use.

Q: Is inventory availability a consideration for part selection?

A: Yes. The Lumimax 1N4736A has 20,300 units in stock, while the Central Semiconductor 1N4736A BK PBFREE has 893 units available. For high-volume production or long-term supply assurance, the Lumimax option provides greater inventory depth.