Equivalent & Substitute Parts for LDD-500H

Part Overview

The LDD-500H by MEAN WELL USA Inc. is a 500mA constant current LED driver utilizing buck topology with a single output. It operates over a 2–52V output range and accepts a 9–56V input. The driver features PWM dimming, remote on/off, over-temperature protection (OTP), and short circuit protection (SCP). With an efficiency of 97%, it is designed for through-hole mounting in a 24-DIP Module, 9 Leads package. The LDD-500H is currently classified as obsolete, necessitating the identification of equivalent or substitute parts for continued design support and maintenance.

Substiute Parts

LDD-500H

MEAN WELL USA Inc.In Stock: 1104LDD-500H Datasheet

Current PartRFQ

NLDD-500H

MEAN WELL USA Inc.In Stock: 719NLDD-500H Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Parts are considered valid substitutes for the LDD-500H only if they match on the following key parameters: type (constant current), topology (buck), number of outputs, maximum output current, dimming method, mounting type, and package. Electrical compatibility is determined by input voltage range, output voltage range, and efficiency. Substitute parts must also meet regulatory criteria such as RoHS, MSL, REACH, ECCN, and relevant safety approvals.

Parameter Comparison

Engineering Selection Recommendations

The LDD-500H is listed as obsolete. Substitute models such as NLDD-500H are active and offer comparable electrical and mechanical characteristics. Product compliance with ROHS3, MSL, REACH, ECCN, and CE is maintained in both main and substitute parts.

Frequently Asked Questions (FAQ)

Q1: Which key electrical parameters determine substitute compatibility for LED driver modules like LDD-500H?
A1: Compatibility is strictly determined by matching type, topology, current output, input/output voltage range, dimming method, mounting type, and package.

Q2: Are there significant dimensional or mounting differences between LDD-500H and NLDD-500H?
A2: Both parts share the same package type (24-DIP Module, 9 leads) and through hole mounting. Minor size variations are specified.

Q3: How important are standards and compliance certifications for substitute selection?
A3: Substitute parts must match regulatory compliance including RoHS, MSL, REACH, ECCN, and relevant safety approvals.

Q4: Are there differences in protection features between LDD-500H and NLDD-500H that affect substitution?
A4: Both parts provide remote on/off and short circuit protection; additional listed features are based on provided input only.

Q5: Does package or inventory status affect the suitability of NLDD-500H as a substitute for LDD-500H?
A5: Both parts are available in through hole, 24-DIP Module, 9 leads packages; the substitute part is active while the main part is obsolete.