DZ2S04700L Zener Diode Equivalent & Substitute Parts

Part Overview

The DZ2S04700L is a 4.7 V, 150 mW surface mount zener diode manufactured by Panasonic Electronic Components in the SC-79/SOD-523 package. This component is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active manufacturers. Substitute parts must maintain the core electrical specifications: 4.7 V nominal zener voltage, 150 mW power dissipation rating, and surface mount packaging compatibility.

Substiute Parts

DZ2S04700L

Panasonic Electronic ComponentsIn Stock: 9084DZ2S04700L Datasheet

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EDZVFHT2R4.7B

Rohm SemiconductorIn Stock: 1117EDZVFHT2R4.7B Datasheet

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EDZVT2R4.7B

Rohm SemiconductorIn Stock: 18264EDZVT2R4.7B Datasheet

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MM5Z4V7ST5G

onsemiIn Stock: 16127MM5Z4V7ST5G Datasheet

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MM5Z4V7T1G

onsemiIn Stock: 77155MM5Z4V7T1G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the DZ2S04700L is determined by the following critical parameters:

Primary Substitution Criteria:

• Zener voltage nominal value: 4.7 V (tolerance range acceptable within ±5% to ±2%)
• Power dissipation rating: minimum 150 mW
• Package type: SC-79 or SOD-523 surface mount
• Mounting type: Surface mount
• RoHS compliance status

Secondary Compatibility Factors:

• Impedance (Zzt): maximum 100 Ohms acceptable
• Reverse leakage current: 2 µA to 3 µA @ specified voltage
• Operating temperature range: -55°C to 150°C minimum

Parts meeting these criteria are classified as direct substitutes. Parts with higher power ratings (500 mW) are classified as upgrades suitable for applications requiring additional thermal margin.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (150 mW Rating):

EDZVT2R4.7B (Rohm Semiconductor) is the primary direct substitute. This part maintains the 4.7 V nominal voltage, 150 mW power rating, and SC-79/SOD-523 package. The ±2% tolerance provides improved voltage accuracy compared to the original ±5% specification. ROHS3 compliance and active product status ensure long-term availability. Operating temperature range of -55°C to 150°C meets or exceeds typical application requirements.

EDZVFHT2R4.7B (Rohm Semiconductor) is an automotive-grade alternative with AEC-Q101 qualification. The 4.65 V nominal voltage falls within acceptable tolerance of the 4.7 V specification. This part is suitable for applications requiring automotive-grade reliability and traceability.

Upgrade Substitutes (500 mW Rating):

MM5Z4V7T1G and MM5Z4V7ST5G (onsemi) provide 500 mW power dissipation, offering increased thermal margin for applications with higher power requirements or thermal stress. Both maintain 4.7 V nominal voltage and SC-79/SOD-523 packaging. MM5Z4V7ST5G features ±2% tolerance with Tape & Reel packaging, while MM5Z4V7T1G offers ±6.4% tolerance with Cut Tape packaging. Both are ROHS3 compliant with active product status.

Selection Basis:

• All substitute parts are RoHS compliant and actively manufactured
• All maintain SC-79/SOD-523 surface mount package compatibility
• All provide equivalent or improved electrical performance
• Rohm parts offer tighter voltage tolerance and automotive qualification options
• onsemi parts provide higher power dissipation for demanding applications

Frequently Asked Questions (FAQ)

Q: Can EDZVT2R4.7B directly replace DZ2S04700L without circuit modification?

A: Yes. EDZVT2R4.7B maintains identical nominal voltage (4.7 V), power rating (150 mW), and package type (SC-79/SOD-523). The ±2% tolerance is tighter than the original ±5%, providing improved voltage regulation characteristics. No circuit modifications are required.

Q: What is the difference between the Rohm and onsemi substitute options?

A: Rohm EDZVT2R4.7B and EDZVFHT2R4.7B are direct 150 mW equivalents. onsemi MM5Z4V7T1G and MM5Z4V7ST5G provide 500 mW power dissipation, suitable for applications requiring higher thermal capacity. All four parts are electrically compatible with the original DZ2S04700L.

Q: Are the onsemi 500 mW parts suitable for applications designed for 150 mW diodes?

A: Yes. Higher power rating components are backward compatible in applications designed for lower power ratings. The 500 mW parts provide additional thermal margin and are suitable for direct substitution. No circuit modifications are necessary.

Q: What is the significance of the ±2% versus ±6.4% tolerance specifications?

A: Tolerance indicates the acceptable deviation from nominal zener voltage. MM5Z4V7T1G (±6.4%) has wider tolerance than MM5Z4V7ST5G (±2%). For applications requiring precise voltage regulation, MM5Z4V7ST5G or EDZVT2R4.7B with ±2% tolerance are preferred. Both are functionally compatible with the original ±5% specification.

Q: Is EDZVFHT2R4.7B automotive-grade qualification relevant for non-automotive applications?

A: AEC-Q101 qualification indicates enhanced reliability testing and traceability. This part is suitable for any application, including non-automotive. The automotive qualification does not restrict use in other applications and provides additional assurance of component quality.

Q: Are all substitute parts available in the same packaging formats?

A: EDZVT2R4.7B and EDZVFHT2R4.7B are available in Cut Tape (CT) & Digi-Reel packaging. MM5Z4V7T1G is available in Cut Tape (CT) & Digi-Reel packaging. MM5Z4V7ST5G is available in Tape & Reel (TR) packaging. All are surface mount compatible with identical footprints.

Q: Do all substitute parts meet RoHS compliance requirements?

A: Yes. All substitute parts are ROHS3 compliant. The original DZ2S04700L is RoHS compliant. All alternatives maintain or exceed RoHS compliance standards, ensuring regulatory compatibility.