Equivalent & Substitute Parts for ULQ-3.3/20-D24P-C

Part Overview

The ULQ-3.3/20-D24P-C from Murata Power Solutions Inc. is an isolated DC-DC converter module offering a single 3.3V output at up to 20A, with a 66W maximum output power. It operates from an 18V to 36V input, features 2 kV isolation, remote on/off, and multiple protection features, and has an efficiency of 89.5%. This model is classified as obsolete, necessitating the selection of alternative, functionally compatible modules.

Substiute Parts

ULQ-3.3/20-D24P-C

Murata Power Solutions Inc.In Stock: 955ULQ-3.3/20-D24P-C Datasheet

Current PartRFQ

UWE-3.3/20-Q12P-C

Murata Power Solutions Inc.In Stock: 975UWE-3.3/20-Q12P-C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution decisions are strictly determined by matching electrical and mechanical characteristics within the provided DC-DC converter category. Critical parameters include input voltage range, output voltage, output current, power rating, isolation voltage, efficiency, operating temperature range, mounting type, package, and enabled features. Only components matching these core values within acceptable tolerances and from the same manufacturer are considered valid substitutes.

Parameter Comparison

Engineering Selection Recommendations

The ULQ-3.3/20-D24P-C is classified as obsolete. The UWE-3.3/20-Q12P-C is an available, active substitute and maintains RoHS3 and REACH unaffected compliance status. Both parts conform to category regulations and declared certifications.

Frequently Asked Questions (FAQ)

Q1: What parameters are critical for substituting a DC-DC converter in this category?
A1: Electrical parameters including input voltage range, output voltage, output current, power rating, isolation voltage, and efficiency are essential. Mechanical characteristics such as mounting type, package, and physical dimensions must also match as specified.

Q2: Can the UWE-3.3/20-Q12P-C directly replace the ULQ-3.3/20-D24P-C in existing designs?
A2: The UWE-3.3/20-Q12P-C matches the required core electrical specifications and features. Physical differences in package size and isolation voltage must be considered as per application constraints.

Q3: Does the substitute part UWE-3.3/20-Q12P-C meet current compliance standards?
A3: Yes, the UWE-3.3/20-Q12P-C is ROHS3 compliant and REACH unaffected.

Q4: Are there any differences in protection or control features between the main and substitute parts?
A4: Both modules feature remote on/off, over-temperature, over-voltage, short circuit, and undervoltage lockout protection. The UWE-3.3/20-Q12P-C additionally specifies overcurrent protection.

Q5: How do package sizes differ between these modules?
A5: The ULQ-3.3/20-D24P-C is 2.22" x 1.35" x 0.38" (1/4 Brick), while the UWE-3.3/20-Q12P-C is 2.30" x 0.90" x 0.34" (1/8 Brick). Compatibility with the PCB footprint and available space should be assessed using these dimensions.