NJM2384D Equivalent & Substitute Parts

Part Overview

The NJM2384D is a buck switching regulator IC manufactured by Nisshinbo Micro Devices Inc., designed for step-down voltage conversion applications. It delivers a fixed positive output of 2.5V at 200mA from input voltages ranging from 3.6V to 32V, operating at a switching frequency of 105kHz. The device is packaged in a 14-DIP through-hole configuration and is rated for operation across -40°C to 85°C.

The NJM2384D is classified as an obsolete product. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support legacy system maintenance where this regulator is currently deployed.

Substiute Parts

NJM2384D

Nisshinbo Micro Devices Inc.In Stock: 854NJM2384D Datasheet

Current PartRFQ

NJM2384D#

Nisshinbo Micro Devices Inc.In Stock: 931NJM2384D# Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the NJM2384D is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Function: Step-down (buck) topology
• Output Configuration: Positive
• Output Type: Fixed voltage
• Number of Outputs: Single output
• Voltage - Input Range: 3.6V minimum to 32V maximum
• Voltage - Output: 2.5V fixed
• Current - Output: 200mA
• Switching Frequency: 105kHz
• Synchronous Rectifier: Not present

Mechanical Equivalence Criteria:

• Mounting Type: Through Hole
• Package / Case: 14-DIP
• Operating Temperature Range: -40°C to 85°C

Parts meeting all these criteria are classified as direct substitutes. Variations in packaging format (tube vs. alternative), product status (active vs. obsolete), or compliance certifications do not affect functional or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The NJM2384D# is a direct functional and mechanical equivalent to the NJM2384D. Both parts share identical electrical specifications, including input voltage range (3.6V to 32V), fixed output voltage (2.5V), output current (200mA), switching frequency (105kHz), and 14-DIP through-hole packaging.

The primary distinction between these parts is product status and compliance:

NJM2384D (Main Part): Classified as obsolete with RoHS non-compliance status. This part remains available in inventory (764 pcs) but represents a legacy component with limited future supply assurance.

NJM2384D# (Substitute): Classified as active product status with RoHS compliance certification. This part is available in tube packaging (864 pcs in stock) and features improved moisture sensitivity characteristics (MSL 1 vs. MSL 2), providing extended shelf life and superior handling reliability.

For new designs or system refreshes, NJM2384D# is the preferred selection due to active product status and regulatory compliance. For legacy system maintenance requiring exact part matching, NJM2384D remains functionally equivalent and interchangeable.

Frequently Asked Questions (FAQ)

Q: Can NJM2384D# be used as a direct replacement for NJM2384D in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all functional parameters: step-down buck topology, 2.5V fixed output, 200mA output current, 3.6V to 32V input range, 105kHz switching frequency, and 14-DIP through-hole package. Pin-for-pin compatibility is maintained.

Q: What is the difference between NJM2384D and NJM2384D#?

A: The parts are functionally equivalent. Differences exist in product status (obsolete vs. active), packaging format (unspecified vs. tube), RoHS compliance (non-compliant vs. compliant), and moisture sensitivity level (MSL 2 vs. MSL 1). These differences do not affect electrical or mechanical performance.

Q: Why is NJM2384D classified as obsolete?

A: Obsolete classification indicates the manufacturer has discontinued active production and support for this part number variant. The NJM2384D# variant remains in active production, ensuring continued availability and supply chain support.

Q: Are there any thermal or performance differences between these parts?

A: No. Both parts operate across the identical temperature range (-40°C to 85°C) and deliver identical switching frequency (105kHz) and output current capability (200mA).

Q: What does MSL (Moisture Sensitivity Level) mean for component selection?

A: MSL indicates the component's sensitivity to moisture absorption during storage and handling. NJM2384D# carries MSL 1 (unlimited shelf life), while NJM2384D carries MSL 2 (1-year shelf life). MSL 1 provides superior storage stability and reduced risk of moisture-related failures during assembly.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes, provided the PCB footprint accommodates 14-DIP through-hole mounting. Both parts use identical pin configurations and electrical characteristics. Tube packaging (NJM2384D#) may offer handling advantages in automated assembly environments compared to alternative packaging formats.