NABCO NAN-I0I-11 DC-DC Converter PCB

Description

Product Introduction & Engineering Value

Power-conversion boards are easy to overlook until a control system starts dropping out intermittently. The NABCO NAN-I0I-11 is marketed as a DC-DC converter PCB card for legacy NABCO marine electronics. Its job is fundamentally different from a general-purpose control PCB: the power-conversion stage must provide the correct electrical supply to downstream circuitry.

There is an important procurement issue here. Available supplier records use NAN-I0I-11, NAN-101-11, NAN-102-01, and different 888-series numbers inconsistently. The physical board marking and original equipment documentation should therefore take priority over a catalog title.

Technical Specifications

A separate NABCO listing identifies NAN-102-01 as a DC-DC converter circuit board and gives an electrical specification of 24 VDC input, 0.56 A, and 15 VDC output at 0.7 A. However, that specification should not automatically be assigned to NAN-I0I-11 without confirmation from the physical board or OEM documentation.

Field Application & the “Trench” Experience

A vessel maintenance team once chasing an intermittent controller reset might initially suspect the CPU, communication network, or field wiring. The less obvious suspect is the power-conversion stage.

For a NAN-series converter PCB, that distinction matters. If the converter output becomes unstable under load, downstream electronics can exhibit apparently unrelated faults: resets, missing indications, communication dropouts, or inconsistent startup behavior.

A practical replacement procedure would be to document the original board identification, measure the incoming and outgoing supply conditions, compare the PCB markings, and then verify the replacement under controlled load before returning the equipment to service.

Specific applications can include:

• Legacy NABCO marine control power-supply maintenance
• DC supply conversion for shipboard electronic control circuits
• NAN-series PCB replacement during vessel overhaul

NAN-I0I-11 DC-DC

NAN-I0I-11 DC-DC

Transparency SOP: QA & Testing

For this particular part, identification testing is just as important as electrical testing because online references contain conflicting model/part-number associations.

Recommended QA sequence:

1. Identity check — Confirm the exact characters printed on the PCB, including whether the marking reads NAN-I0I-11, NAN-101-11, or another NAN-series designation.
2. Part-number comparison — Record every visible NABCO part number and PCB code. Do not rely solely on the seller’s catalog title.
3. Physical inspection — Examine connectors, solder joints, transformer/inductor areas, capacitors, and PCB traces for corrosion or damage.
4. Electrical test — Verify the converter’s input and output characteristics against the applicable equipment documentation. Do not substitute assumed values from another NAN-series board.
5. Load test — Where suitable test equipment is available, verify output stability under an appropriate load before installation.
6. ESD packaging — Store the tested board in suitable anti-static packaging with the inspection record attached.

One current supplier lists the NAN-I0I-11 unit as used and states that its products are tested, while another listing specifies a 30-day warranty. Those are supplier-specific claims, not evidence of an OEM NABCO warranty.

The Veteran’s Tech Trap Guide

⚠️ The part-number conflict is the biggest trap.

One supplier page presents:

• NAN-101-11 / → 888 72741219
• NAN-102-01 → 888 72741220

Yet the same page title identifies the DC-DC Converter PCB Card as 888 72741220.

Do not treat those references as interchangeable.

⚠️ Watch the character “I” versus the digit “1.”
can easily be confused with NAN-101-11. For legacy hardware, that single-character distinction can matter.

⚠️ PRO TIP: Photograph the original PCB label.
For this part, a clear photograph showing the complete model, part number, and PCB marking is more useful than a generic product title.

⚠️ Do not copy NAN-102-01 electrical ratings onto without verification.
The available data links these models closely, but that does not establish electrical interchangeability.

Dynamic FAQ

Q1. What is the NABCO ?

The NABCO is marketed by suppliers as a DC-DC converter PCB card for NABCO marine electronic equipment.

Q2. Is the same as NAN-101-11?

Supplier records explicitly associate / in some listings, but the naming is inconsistent. Verify the physical PCB marking before treating them as the same assembly.

Q3. What is the part number?

This is where extra caution is required. One current listing associates the product title with 888 72741220, while the same listing separately identifies / with 888 72741219. The correct reference should be confirmed from the installed board and equipment documentation.

Q4. Is interchangeable with NAN-102-01?

Do not assume so. is separately listed as a DC-DC converter circuit board, and supplier data gives it part number 888 72741220. Physical and electrical verification is required before substitution.

Q5. Can a used or refurbished be used as a replacement?

Potentially. It should first pass identification, physical inspection, electrical testing, and compatibility verification. A supplier’s “tested” or warranty status does not replace the buyer’s responsibility to verify system compatibility.

Q6. What should buyers provide when requesting this part?

Provide , all visible part numbers, PCB markings such as K64095-10, photographs of both sides of the board if possible, and the NABCO equipment/system in which it is installed.

Q7. Is New Surplus authenticity guaranteed?

Not by the model number alone. For New Surplus stock, request photographs of the actual unit, original labels, date/lot information where available, and confirmation that the board has not been repaired or modified. Supplier warranty terms should be stated separately from any OEM status.