DZ4J024K0R Equivalent & Substitute Parts

Part Overview

The DZ4J024K0R is a Zener diode array manufactured by Panasonic Electronic Components, featuring 2 independent 2.4 V channels rated at 200 mW in a SMini4-F3-B surface mount package. This component is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active manufacturers. Substitute parts must maintain electrical performance across voltage regulation, power dissipation, and leakage characteristics while accommodating different package geometries.

Substiute Parts

DZ4J024K0R

Panasonic Electronic ComponentsIn Stock: 898DZ4J024K0R Datasheet

Current PartRFQ

UDZVFHTE-172.4B

Rohm SemiconductorIn Stock: 2911UDZVFHTE-172.4B Datasheet

SimilarRFQ

UDZVTE-172.4B

Rohm SemiconductorIn Stock: 77210UDZVTE-172.4B Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DZ4J024K0R is determined by strict equivalence across the following electrical parameters:

• Zener Voltage (Vz): 2.4 V nominal
• Maximum Power Dissipation: 200 mW
• Maximum Impedance (Zzt): 100 Ohms
• Reverse Leakage Current: 120 µA @ 1 V
• Mounting Technology: Surface Mount

The identified substitute parts from Rohm Semiconductor (UDZVTE-172.4B and UDZVFHTE-172.4B) satisfy all critical electrical parameters. Both alternatives are single-channel Zener diodes rather than arrays, requiring circuit-level accommodation. Package differences (SMini4-F3-B versus SC-90/SOD-323F) necessitate PCB layout modification but do not affect electrical performance within specified operating conditions.

Parameter Comparison

Engineering Selection Recommendations

UDZVTE-172.4B is the primary substitute for DZ4J024K0R applications. This part maintains full electrical equivalence across all specified parameters, operates across the temperature range of -55°C to 150°C, and is currently in active production with high inventory availability (77,100 pieces). ROHS3 compliance and unlimited moisture sensitivity rating ensure compatibility with modern manufacturing and storage requirements.

UDZVFHTE-172.4B serves as an alternative where automotive-grade qualification is required. This variant includes AEC-Q101 certification and operates to 150°C junction temperature, with explicit impedance and leakage specifications matching the original part. Automotive qualification adds process traceability and reliability documentation suitable for safety-critical applications.

Both Rohm alternatives require PCB redesign due to package geometry differences. The original DZ4J024K0R provides two independent Zener channels in a single package; substitutes are single-channel devices, necessitating dual component placement or alternative circuit topology.

Frequently Asked Questions (FAQ)

Q: Can UDZVTE-172.4B directly replace DZ4J024K0R without circuit modification?

A: Electrical substitution is valid. However, the original part is a 2-channel array in SMini4-F3-B package, while UDZVTE-172.4B is a single-channel device in SC-90/SOD-323F package. PCB layout and component placement require modification. If the application requires two independent 2.4 V Zener channels, two UDZVTE-172.4B devices must be used.

Q: What is the difference between UDZVTE-172.4B and UDZVFHTE-172.4B?

A: Both parts meet the electrical specifications of DZ4J024K0R. UDZVFHTE-172.4B includes automotive-grade qualification (AEC-Q101) and specifies maximum operating temperature at 150°C junction temperature. UDZVTE-172.4B provides broader temperature range (-55°C to 150°C) without automotive certification. Selection depends on application requirements and qualification documentation needs.

Q: Are the package dimensions compatible with the original PCB footprint?

A: No. DZ4J024K0R uses SMini4-F3-B package (4-lead flat lead configuration), while both Rohm substitutes use SC-90/SOD-323F package (2-lead SOD-323 form factor). Footprint redesign is required. Consult package datasheets for exact dimensional specifications before PCB layout modification.

Q: Do the substitute parts meet RoHS requirements?

A: Yes. Both UDZVTE-172.4B and UDZVFHTE-172.4B are ROHS3 compliant, exceeding the RoHS compliance status of the original DZ4J024K0R. No material composition conflicts exist for RoHS-regulated applications.

Q: What is the impedance specification for UDZVTE-172.4B?

A: Impedance (Zzt) is not specified in the provided datasheet parameters for UDZVTE-172.4B. UDZVFHTE-172.4B specifies maximum impedance at 100 Ohms, matching the original part. For applications where impedance specification is critical, UDZVFHTE-172.4B is the recommended choice.

Q: Can these parts be used in high-temperature applications?

A: UDZVFHTE-172.4B operates to 150°C junction temperature with automotive qualification. UDZVTE-172.4B operates across -55°C to 150°C ambient range. Both are suitable for elevated temperature environments within specified limits. Verify specific application temperature requirements against datasheet operating ranges.