RAC01-3.3SC Equivalent & Substitute Parts

Part Overview

The RAC01-3.3SC is an enclosed AC/DC converter from Recom Power's POWERLINE RAC01-C series, rated for 1W output power with a single 3.3V output at 300mA maximum current. This module accepts 80–264 VAC input and is designed for ITE (Commercial) applications with short-circuit protection (SCP) and through-hole mounting in a 4-DIP module package.

The RAC01-3.3SC is classified as Obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this converter.

Substiute Parts

RAC01-3.3SC

Recom PowerIn Stock: 861RAC01-3.3SC Datasheet

Current PartRFQ

RAC02E-3.3SK/277

Recom PowerIn Stock: 1131RAC02E-3.3SK/277 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RAC01-3.3SC is determined by the following critical parameters:

Output Voltage Compatibility: The substitute part must provide 3.3V output to maintain circuit compatibility.

Output Current Capacity: The substitute must deliver at least 300mA maximum output current. Higher current ratings (600mA) provide additional design margin and are acceptable for direct substitution.

Input Voltage Range: The substitute must accept the same or broader input voltage range. The original part accepts 80–264 VAC; substitutes with extended ranges (85–305 VAC, 120–430 VDC) are compatible.

Package and Mounting: The substitute must use the same 4-DIP Module package and through-hole mounting configuration to ensure PCB compatibility without redesign.

Regulatory Compliance: The substitute must maintain equivalent or superior regulatory certifications (CE, EN, UL, or equivalent international standards).

Product Status: Active product status is preferred to ensure long-term availability and support.

The RAC02E-3.3SK/277 meets all substitution criteria with enhanced specifications including higher power rating (2W vs. 1W), increased output current (600mA vs. 300mA), improved efficiency (68% vs. 65%), and active product status.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution:

The RAC02E-3.3SK/277 is the manufacturer-recommended substitute for the obsolete RAC01-3.3SC. Both converters maintain identical output voltage (3.3V) and package configuration (4-DIP Module, through-hole mounting), ensuring PCB-level compatibility without layout modifications.

Compliance and Regulatory Status:

The RAC02E-3.3SK/277 carries broader regulatory approvals (CB, CE, cURus, EAC) compared to the original part (CE, EN, UL), providing enhanced international market support. Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Performance Advantages:

The substitute part delivers superior electrical performance: doubled power capacity (2W vs. 1W), doubled output current (600mA vs. 300mA), improved efficiency (68% vs. 65%), and significantly tighter regulation specifications (±0.5% line regulation vs. ±2%, and 0.5% load regulation vs. ±6%). Extended operating temperature range (−40°C to +90°C vs. −25°C to +85°C) and expanded input voltage acceptance (85–305 VAC, 120–430 VDC) provide greater design flexibility.

Product Availability:

The RAC02E-3.3SK/277 maintains active product status with confirmed inventory availability (1094 units), ensuring reliable long-term supply compared to the obsolete RAC01-3.3SC.

Frequently Asked Questions (FAQ)

Q: Can the RAC02E-3.3SK/277 be used as a direct replacement for the RAC01-3.3SC without PCB modifications?

A: Yes. Both parts use identical 4-DIP Module packaging and through-hole mounting configuration. Pin-to-pin compatibility is maintained, allowing direct substitution without PCB redesign.

Q: What is the primary advantage of substituting to the RAC02E-3.3SK/277?

A: The substitute part is active product status (vs. obsolete), ensuring long-term availability. It also provides doubled output current capacity (600mA vs. 300mA) and improved regulation performance, offering additional design margin for existing and future applications.

Q: Are there any electrical compatibility concerns when substituting the RAC02E-3.3SK/277 for the RAC01-3.3SC?

A: No electrical compatibility concerns exist. The output voltage is identical (3.3V), and the substitute's higher current rating (600mA) exceeds the original requirement (300mA). Input voltage ranges are compatible, with the substitute accepting a broader range.

Q: Does the RAC02E-3.3SK/277 meet the same regulatory certifications as the RAC01-3.3SC?

A: The substitute meets or exceeds regulatory requirements. It carries CB, CE, cURus, and EAC certifications, providing broader international compliance than the original part's CE, EN, and UL certifications. Both maintain ROHS3 compliance.

Q: What is the physical size difference between these two converters?

A: The RAC02E-3.3SK/277 is slightly more compact in height (15.4mm vs. 18.0mm), while maintaining identical length (33.7mm) and width (22.2mm). This dimensional reduction may provide additional PCB layout benefits.

Q: Is the RAC02E-3.3SK/277 available in the same packaging format?

A: The substitute is supplied in Tube packaging, whereas the original part was supplied in standard packaging. Both use the same 4-DIP Module case style for circuit board integration.