1N4742A_S00Z Equivalent & Substitute Parts

Part Overview

The 1N4742A_S00Z is a Zener diode rated at 12 V nominal voltage with 1 W maximum power dissipation, housed in a DO-41 through-hole package. Manufactured by onsemi, this component is classified as obsolete. Due to its obsolete product status, identifying equivalent substitute parts with identical electrical and mechanical specifications is essential for design continuity and procurement planning. Substitute parts must maintain the same voltage regulation characteristics, power rating, and package configuration to ensure direct functional replacement in existing circuit designs.

Substiute Parts

1N4742A_S00Z

onsemiIn Stock: 10551N4742A_S00Z Datasheet

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1N4742A

Lumimax Optoelectronic TechnologyIn Stock: 100811N4742A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1N4742A_S00Z are identified based on strict equivalence across the following critical parameters:

• Zener Voltage (Nominal): 12 V
• Maximum Power Dissipation: 1 W
• Voltage Tolerance: ±5%
• Impedance (Maximum): 9 Ohms
• Reverse Leakage Current: 5 µA @ 9.1 V
• Operating Temperature Range: -65°C to 200°C
• Package Configuration: DO-41 through-hole axial package

Parts meeting all these specifications are classified as direct functional equivalents. The 1N4742A from Lumimax Optoelectronic Technology satisfies all substitution criteria and is available in active product status with current inventory.

Parameter Comparison

Engineering Selection Recommendations

The 1N4742A manufactured by Lumimax Optoelectronic Technology is a direct electrical and mechanical equivalent to the obsolete 1N4742A_S00Z. All critical electrical parameters—zener voltage, power rating, tolerance, impedance, and reverse leakage current—are identical. The package configuration and mounting type are equivalent, enabling direct board-level substitution without circuit modification.

The Lumimax 1N4742A maintains active product status with confirmed inventory availability, providing supply chain continuity. The component carries RoHS Compliance certification and REACH Unaffected status, meeting current regulatory requirements. Both parts share identical ECCN (EAR99) and HTSUS (8541.10.0050) classifications.

Selection of the Lumimax substitute is appropriate for applications requiring 12 V voltage regulation with 1 W power dissipation across the full operating temperature range of -65°C to 200°C.

Frequently Asked Questions (FAQ)

Q: Can the 1N4742A from Lumimax be used as a direct replacement for the onsemi 1N4742A_S00Z?

A: Yes. Both components share identical electrical specifications including 12 V zener voltage, 1 W power rating, ±5% tolerance, 9 Ohms maximum impedance, and 5 µA reverse leakage current. The DO-41 through-hole package configuration is equivalent, permitting direct substitution without circuit redesign.

Q: What is the primary reason for seeking a substitute for the 1N4742A_S00Z?

A: The onsemi 1N4742A_S00Z is classified as obsolete. The Lumimax 1N4742A maintains active product status with current manufacturing and inventory availability, ensuring long-term supply chain reliability.

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

A: The Lumimax 1N4742A carries RoHS Compliance certification. Both parts are REACH Unaffected and share identical ECCN and HTSUS classifications. Compliance status does not affect electrical or mechanical substitution compatibility.

Q: Does the DO-41G package designation for the Lumimax part differ functionally from the DO-41 package of the onsemi part?

A: No. The DO-41G designation indicates the supplier device package format but represents the same DO-204AL, DO-41 axial package family. Physical dimensions and pin configuration are equivalent, enabling direct board-level replacement.

Q: What operating temperature range is supported by the substitute part?

A: The Lumimax 1N4742A operates across -65°C to 200°C, matching the onsemi original specification. This range covers both industrial and high-temperature applications without thermal derating.

Q: Is the 5% voltage tolerance maintained in the substitute part?

A: Yes. The Lumimax 1N4742A maintains ±5% zener voltage tolerance, identical to the original onsemi component. Voltage regulation accuracy is preserved across the specified operating range.