Equivalent & Substitute Parts Reference: R-78B1.8-1.5

Part Overview

Manufacturer part number R-78B1.8-1.5, produced by Recom Power, is a DC-DC converter designed as a linear regulator replacement. It features a single 1.8V output at up to 1.5A with a 2.7W maximum power rating and supports input voltages from 4.75V to 18V. The module is RoHS3 compliant and suitable for ITE (Commercial) applications. This product is now classified as Obsolete, necessitating the identification of alternative models to maintain design continuity, replenishment, or ongoing support in manufacturing and repair environments.

Substiute Parts

R-78B1.8-1.5

Recom PowerIn Stock: 12238R-78B1.8-1.5 Datasheet

Current PartRFQ

R-78B1.8-2.0

Recom PowerIn Stock: 984R-78B1.8-2.0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are grouped based on strict equivalence of critical parameters including: manufacturer series, output voltage, number of outputs, input voltage range, mounting type, package dimensions, regulatory compliance (RoHS status, REACH status), and matching application types. All parameters used for grouping are present in both the main and substitute part specifications and match the requirements to ensure electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Based on the product status, the main part R-78B1.8-1.5 is obsolete, while the substitute R-78B1.8-2.0 is listed as active. Both the main and substitute parts are ROHS3 compliant and REACH unaffected, with the same Moisture Sensitivity Level (1, Unlimited). Selection should be made in accordance with these status, compliance, and certification parameters, strictly referencing information supplied.

Frequently Asked Questions (FAQ)

Q1: What parameters are critical when selecting a substitute for R-78B1.8-1.5?
A1: Only parameters explicitly listed in the data above—including output voltage, output current, input voltage range, features, package, dimensions, mounting type, operating temperature, RoHS status, MSL, and REACH status—are used for determining suitability as a substitute.

Q2: Is the R-78B1.8-2.0 directly compatible in terms of pinout and physical footprint?
A2: According to the provided inputs, both the R-78B1.8-1.5 and R-78B1.8-2.0 utilize a 3-SIP Module package and have identical dimensions and through-hole mounting, indicating physical and pin-for-pin compatibility.

Q3: Are there differences in regulatory or environmental compliance between the original and substitute parts?
A3: Both parts are ROHS3 compliant, have an MSL of 1 (Unlimited), and are REACH unaffected.

Q4: Does the operating temperature or electrical performance differ?
A4: The main part R-78B1.8-1.5 operates from -40°C to 85°C, while the substitute R-78B1.8-2.0 operates from -40°C to 70°C as per provided data. Other parameters including output voltage, package type, and application match.

Q5: Is the substitute part status suitable for new designs or lifecycle extension?
A5: The substitute R-78B1.8-2.0 is designated as Active, in contrast to the Obsolete status of the main part.