Recom Power RB-1209D/H

Summary of RB-1209D/H Recom Power DC-DC Converter

The RB-1209D/H is a part of the ECONOLINE RB (1W) series manufactured by Recom Power. Designed as an isolated DC-DC converter module, it specifically delivers dual output voltages of +9V and -9V with a maximum output current of 56mA per channel and a total rated output power of 1W. With a wide operating input voltage range from 10.8V to 13.2V, this converter is intended for use in commercial information technology equipment (ITE) and medical electronics. Isolation is a key design parameter, with a 2kV DC option available for improved system safety and signal integrity.

Principal technical parameters of RB-1209D/H Recom Power DC-DC Converter

The core technical parameters defining the RB-1209D/H model are as follows:

Input Voltage Range: 10.8V to 13.2V

Output Voltages: +9V and -9V

Maximum Output Current: 56mA for each output

Output Power Rating: 1W

Isolation Voltage: Standard is 1kVDC/1s, with the “/H” suffix indicating 2kVDC/1s isolation

Operating Temperature Range: -40℃ to 85℃

Efficiency: Up to 79% (tested at nominal input and full load, 25℃ ambient)

Output Type: Dual, unregulated

Mounting: Through-hole, 7-SIP module format with 5 leads

These specifications support the device’s suitability for applications requiring isolated dual-rail power supplies and compact, board-level integration.

Operational functions of RB-1209D/H Recom Power DC-DC Converter

The RB-1209D/H incorporates several functional characteristics beneficial to engineering design:

Low cost construction without compromising isolation and operating range

Dual output configuration supporting power sharing

Optional continuous short circuit protection (models with “/P” or “/HP” suffixes)

UL94V-0 rated package material for fire safety compliance

Unregulated converter topology, useful for general-purpose isolation and voltage conversion

These features make the RB-1209D/H attractive in systems where board space, robust isolation, and cost efficiency are critical considerations.

Electrical performance metrics of RB-1209D/H Recom Power DC-DC Converter

From an electrical perspective, the RB-1209D/H series delivers stable performance across a broad range of loads and input conditions. Efficiency is optimized for typical loads (up to 79%), with derating graphs available for free air convection scenarios to guide thermal management decisions. Output voltage deviation under varying loads is minimal due to the converter’s design approach, ensuring reliable power delivery when integrated into mixed-signal and analog subsystems. Optional continuous short circuit protection enhances reliability in applications with unpredictable operational conditions.

Physical characteristics and packaging information for RB-1209D/H Recom Power DC-DC Converter

The mechanical format for the RB-1209D/H is a standard 7-SIP module with five active leads, suitable for through-hole PCB mounting. Module dimensions are 19.7mm length, 6.0mm width, and 10.2mm height, allowing straightforward integration into compact designs. Pinning information supports easy layout planning, and the recommended footprint yields robust solder connections and optimal thermal performance. The RB-1209D/H is not suited for safety-critical applications unless expressly authorized by Recom Power.

Standards and certifications for RB-1209D/H Recom Power DC-DC Converter

For engineers and procurement personnel, understanding compliance is key. The RB-1209D/H supports:

RoHS3 compliance for hazardous substance control

REACH unaffected status

UL60950-1, CAN/CSA-C22.2 No 60950-1, IEC/EN60950-1 certifications for general safety

EN55032 EMC compliance for commercial emission standards

Package material rated UL94V-0 for fire resistance

The converter’s environmental and export classification includes ECCN EAR99 and HTSUS 8504.40.9580, important for global sourcing and logistics.

Usage examples and integration guidelines for RB-1209D/H Recom Power DC-DC Converter

The RB-1209D/H is designed for isolating or converting DC rails in commercial and medical equipment, supporting analog and mixed-signal circuitry, op-amp biasing, and sensor signal conditioning. Engineering logic should account for unregulated output characteristics, the need for minimum load to maintain output voltage stability, and thermal management where operating ambient temperatures approach specified maximums. The dual output allows direct supply to bipolar loads or circuits requiring both positive and negative rails.

Alternative or compatible models for RB-1209D/H Recom Power DC-DC Converter

When optimizing design costs or meeting alternate approval requirements, procurement engineers should consider equivalents within the Recom Power RB series, such as the RB-1209D (1kVDC isolation) or models with suffixes like /P (continuous short circuit protection), /H (2kVDC isolation), and /HP (high isolation and protection). For applications with differing input voltages or output needs, models like RB-123.3/P or RB-0509D/HP within the same series may be suitable alternatives. Compatibility and selection must be verified against load requirements, isolation, and protection needs.

Conclusion

The RB-1209D/H Recom Power DC-DC converter offers engineers robust dual-output, high-isolation power conversion in a compact SIP7 module. With broad operating temperature, strong EMC compliance, and flexible design choices via suffix options, the RB-1209D/H is well-suited for commercial and medical electronics requiring isolated bipolar rails. When selecting or replacing DC-DC converter modules, careful evaluation of input/output parameters, isolation needs, and compliance requirements will ensure optimal system performance and reliability.