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$400.00 Original price was: $400.00.$380.00Current price is: $380.00.Earn 380 points!
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It is a power filter / supply circuit board used in JRC equipment, specifically in the JRC 901B system.
Part designation: CBD-1832, board version 901B-7, with marking 6002021L-B.In some listings, it is called “Main Power CBD-1832” and used as a spare / replacement part for the JRC JAN901B ECDIS / JRC 901B systems.
One salvage / parts listing describes it as a power filter circuit board for JRC 901B, designed to “withstand the electrical demands and environmental conditions typical in maritime applications, including resistance to moisture and vibration.”
Filtering / smoothing of input power (AC or DC) to the 901B system, to remove noise, spikes, or ripple, ensuring stable power delivery to sensitive electronics.
Possibly includes protection elements such as fuses, surge suppressors, transient voltage suppressors (TVS diodes), inductors / chokes, capacitors, and regulators.
It likely handles the interface between external supply (e.g. ship’s AC mains or DC bus) and the internal circuits of the 901B device, ensuring that power surges, electromagnetic interference (EMI), or spikes do not damage downstream modules.
Given its marine application, the board would be designed for robustness: high humidity, salt spray, vibration, temperature swings, etc.
| Parameter | Estimate / Typical Range | Notes / Reasoning |
|---|---|---|
| Input voltage | Likely AC mains (e.g. 100/115/230 V AC) or shipboard DC (e.g. 24 V) | Many JRC marine systems use dual AC/DC inputs; this board may accept AC or DC supply |
| Output / internal supply voltages | Several lower-voltage rails (e.g. 5 V, 12 V, ±15 V) | To power logic, analog, interface circuits |
| Filtering performance | High rejection of high-frequency noise, good attenuation of voltage ripple | As a “filter board,” its main role is to protect downstream electronics |
| Environmental | Designed for vibration, shock, moisture, corrosion, temperature extremes | Marine-grade design, conformal coating etc expected |
| Physical / mounting | PCB format, connectors to mating boards, maybe 901B-7 slot form | Identified in listings as “circuit board 901B-7” |
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