RB-0512S/H Equivalent & Substitute Parts

Part Overview

The RB-0512S/H is an isolated module DC-DC converter manufactured by Recom Power, part of the ECONOLINE RB (1W) series. This component converts input voltage in the range of 4.5V to 5.5V to a regulated 12V output at 84mA maximum current, delivering 1W of power. The device features 2 kV isolation, short-circuit protection (SCP), and operates across the temperature range of -40°C to 85°C. It is packaged as a 7-SIP module with 5 leads and is suitable for ITE (Commercial) and Medical applications. The RB-0512S/H maintains Active product status and is ROHS3 compliant. Equivalent and substitute parts are identified for applications requiring alternative sourcing, inventory management, or specific performance characteristics.

Substiute Parts

RB-0512S/H

Recom PowerIn Stock: 12455RB-0512S/H Datasheet

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F0512S-1WR3

Mornsun America, LLCIn Stock: 1208F0512S-1WR3 Datasheet

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MDS01L-12

MEAN WELL USA Inc.In Stock: 787MDS01L-12 Datasheet

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MDS02L-12

MEAN WELL USA Inc.In Stock: 1370MDS02L-12 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RB-0512S/H is determined by the following critical parameters:

Primary Substitution Criteria:

• Input voltage range: 4.5V – 5.5V
• Output voltage: 12V
• Mounting type: Through Hole
• Package family: 7-SIP Module
• Isolation voltage: Minimum 2 kV
• Product status: Active

Secondary Compatibility Factors:

• Output current capacity: 84mA or greater
• Power rating: 1W or greater
• Operating temperature range: Minimum -40°C to 85°C
• RoHS compliance status
• Regulatory certifications (CB, CE, cURus)

Parts meeting all primary criteria are classified as direct equivalents. Parts exceeding output current or power specifications are classified as functional upgrades suitable for direct substitution. Parts with reduced isolation voltage, narrower temperature ranges, or different lead configurations are noted for application-specific evaluation.

Parameter Comparison

Engineering Selection Recommendations

F0512S-1WR3 (Mornsun America, LLC)

The F0512S-1WR3 is a direct functional equivalent meeting all primary substitution criteria. It provides identical input voltage range (4.5V – 5.5V), output voltage (12V), output current (84mA), and power rating (1W). The device features enhanced isolation voltage (3 kV versus 2 kV) and improved efficiency (83% versus 80%). Operating temperature range extends to 105°C with derating, exceeding the RB-0512S/H specification. The package is 7-SIP with 4 leads, compared to the 5-lead configuration of the main part. This part holds CB, CE, and cURus certifications and is RoHS compliant. Suitable for direct substitution in ITE (Commercial) applications.

MDS01L-12 (MEAN WELL USA Inc.)

The MDS01L-12 is a direct functional equivalent with identical electrical specifications: input voltage range (4.5V – 5.5V), output voltage (12V), output current (84mA), and power rating (1W). This part provides superior isolation voltage (6 kV versus 2 kV) and includes short-circuit protection (SCP). Operating temperature range matches the main part (-40°C to 85°C). The package is 7-SIP with 4 leads. ROHS3 compliance and Medical application certification align with the RB-0512S/H. Efficiency is 77%, lower than the main part. Suitable for direct substitution in Medical applications requiring enhanced isolation.

MDS02L-12 (MEAN WELL USA Inc.)

The MDS02L-12 is a functional upgrade with enhanced output capacity. It maintains identical input voltage range (4.5V – 5.5V) and output voltage (12V) but provides doubled output current (167mA) and power rating (2W). Isolation voltage is 6 kV, exceeding the main part specification. Operating temperature range matches (-40°C to 85°C). The package is 7-SIP with 4 leads. ROHS3 compliance and Medical application certification are present. Efficiency is 80%, matching the main part. This part is suitable for substitution in applications requiring higher current capacity or power headroom while maintaining the same form factor and isolation characteristics.

Frequently Asked Questions (FAQ)

Q: Can the F0512S-1WR3 replace the RB-0512S/H in all applications?

A: The F0512S-1WR3 meets all primary electrical and mechanical substitution criteria. However, the lead count differs (4 leads versus 5 leads). PCB layout and connector compatibility must be verified before substitution. The extended operating temperature range (to 105°C) and improved isolation voltage (3 kV) provide additional margin in demanding environments.

Q: What is the primary difference between the MDS01L-12 and MDS02L-12?

A: Both parts share identical input voltage range, output voltage, and isolation characteristics. The MDS02L-12 provides doubled output current (167mA versus 84mA) and power rating (2W versus 1W). The MDS02L-12 is suitable for applications requiring higher current delivery or future design margin. Physical dimensions are identical.

Q: Are there lead configuration differences between substitute parts?

A: Yes. The RB-0512S/H uses a 7-SIP module with 5 leads. The F0512S-1WR3, MDS01L-12, and MDS02L-12 all use 7-SIP modules with 4 leads. PCB footprint and connector design must accommodate this difference. Mechanical dimensions are similar across all parts (approximately 19.7mm L × 6.0-9.8mm W × 10.2-12.5mm H).

Q: Which substitute part offers the highest isolation voltage?

A: Both the MDS01L-12 and MDS02L-12 provide 6 kV isolation voltage, compared to 2 kV for the RB-0512S/H and 3 kV for the F0512S-1WR3. Enhanced isolation is beneficial in medical applications and high-noise industrial environments.

Q: Can the MDS02L-12 be used as a direct replacement for the RB-0512S/H?

A: The MDS02L-12 is electrically compatible and provides enhanced performance (higher current and power capacity). However, the 4-lead configuration differs from the 5-lead RB-0512S/H. PCB layout verification is required. The increased power rating does not negatively impact applications designed for 1W operation.

Q: What compliance certifications are relevant for Medical applications?

A: The RB-0512S/H, MDS01L-12, and MDS02L-12 are specified for Medical applications and carry ROHS3 compliance. The MDS series parts provide 6 kV isolation, which exceeds typical medical isolation requirements. The F0512S-1WR3 is specified for ITE (Commercial) applications and holds CB, CE, and cURus certifications.

Q: How does efficiency variation affect part selection?

A: Efficiency ranges from 77% (MDS01L-12) to 83% (F0512S-1WR3). In low-power 1W applications, efficiency differences result in minimal thermal impact. Selection should prioritize isolation voltage, current capacity, and application certification requirements over efficiency variations in this range.