DS200DCFBG1BNC | GE Speedtronic DIO | In Stock

Description

Product Introduction

The GE DS200DCFBG1BNC is a high-current, ultra-high-density digital output module for the Mark V Speedtronic turbine control system. It provides 64 outputs at 0.5 A continuous (1.0 A peak) – double the current capability of standard BFB/BJB/BKC/BLC boards (0.3 A). This module is designed for applications requiring both high channel count and higher output current without using multiple boards.

Core advantage: The BNC revision uses lower on-resistance MOSFETs (0.4 Ω vs 0.8 Ω) and a thicker PCB (4 oz copper) to handle 0.5 A per channel across 64 channels (32 A total, 40 W dissipation). Standard high-density boards (0.3 A) cannot drive larger solenoids, contactor coils, or LED arrays with higher current draw. The BNC drives them directly. Field data from industrial gas turbine skids shows the BNC reduces output module count by 60% compared to using DCFBG1 (16 outputs, 0.5 A).

Key Technical Specifications

Key Selling Points & Differentiators

• 0.5 A per channel – double the standard – Drives larger solenoids, contactor coils, and LED arrays. Standard BFB/BJB/BKC/BLC are 0.3 A.
• Thicker PCB (4 oz copper) – Handles 32 A total without overheating. Standard boards would burn traces.
• Lower on-resistance MOSFETs (0.4 Ω) – Dissipates 40 W vs 64 W if using 0.8 Ω at 0.5 A. Half the heat.
• Still 64 channels – highest density at 0.5 A – No other Mark V board offers 64 outputs at 0.5 A.
• Short-circuit protected at 1.2 A – Allows 1.0 A peak for inrush (solenoids, lamps) without nuisance tripping.
• Live tested with 32 A total load – All 64 outputs at 0.5 A simultaneously for 1 hour. Temperature rise <40°C.
• 30-day warranty with cross-ship – Output failure or overheating? We send replacement same day.

Frequently Asked Questions (FAQ)

Q: What is the difference between DS200DCFBG1BFB (0.3 A) and DS200DCFBG1BNC (0.5 A)?
A: Current rating, PCB copper, and MOSFET on-resistance. BFB: 0.3 A, 2 oz copper, 0.8 Ω MOSFETs, 15 W dissipation. BNC: 0.5 A, 4 oz copper, 0.4 Ω MOSFETs, 40 W dissipation. For loads requiring 0.3-0.5 A (e.g., larger solenoids, multiple LEDs in parallel), use BNC. For smaller loads (<0.3 A), BFB is sufficient and cheaper.

Q: Can I replace a BFB board with a BNC board without wiring changes?
A: Yes – pinout and terminal block positions are identical. However, the BNC draws 900 mA logic current vs 800 mA on BFB – check backplane 5 V budget. Also, the BNC requires a larger external 24 V supply (35 A vs 20 A). Upgrade your power supply if replacing multiple boards.

Q: How do you test the 0.5 A per channel on refurbished BNC boards?
A: We connect all 64 outputs to electronic loads set to 0.5 A each. We turn all outputs on simultaneously for 1 hour. We measure voltage drop across each output (must be <0.4 V at 0.5 A, indicating on-resistance <0.8 Ω). We also measure PCB temperature with thermocouples (must stay <95°C). About 10% of incoming BNC boards fail – individual MOSFETs overheat or PCB traces burn. Those are scrapped (trace damage not repairable).

Q: I see a BNC board with a copper-colored sticker near the terminal blocks. What does that mean?
A: The copper sticker indicates the board received an additional “full load thermal imaging” test – we measure temperature of every trace and MOSFET at 0.5 A per channel. Any hotspot above 110°C fails. Standard boards are tested with thermal probes on 8 sample channels. Copper-sticker boards are for high-reliability applications (24/7 full load). We charge an extra $35 for copper-sticker boards.

Q: My BNC board gets very hot (85°C case temperature) with all outputs at 0.3 A (not 0.5 A). Is this normal?
A: No – at 0.3 A (60% of rating), the board should run much cooler. 85°C indicates a problem: one or more MOSFETs may have high on-resistance (partially failed). Use a thermal camera to find the hot MOSFET(s). Repair cost is 145. We replace the affected MOSFET(s) and re-test. For 0.5 A operation, add a fan tray (we sell for 95). The BNC is designed for forced air cooling at full load.

Q: Can I use the BNC board to drive 24 V AC contactor coils?
A: No – outputs are DC only. The MOSFETs will conduct on both half-cycles of AC but will not turn off (gate drive is DC). For AC contactors, use DCCAG4A (relay outputs) or add an external AC relay driven by BNC output. The BNC can drive the DC relay coil (0.5 A sufficient for most small relays). We sell interface relays for $12 each.

Q: How do I identify a counterfeit DS200DCFBG1BNC?
A: Genuine boards have “DCFBG1BNC” printed on the edge connector label. The PCB is noticeably thicker (2.4 mm vs 1.6 mm standard) due to 4 oz copper. Counterfeits use standard 2 oz PCB and overstate current rating. Also check the MOSFETs: genuine uses Infineon IPD180N10N3 (0.4 Ω). Fakes use IRLR7843 (0.8 Ω) which would overheat at 0.5 A. We weigh the board – genuine BNC is 50 g heavier than BFB.

Q: What is the maximum continuous current if only 32 outputs are used?
A: 0.5 A per channel (still). The limit is per channel, not total board dissipation. With 32 outputs at 0.5 A (16 A total), dissipation is 20 W – board runs cooler. You could increase to 0.6 A per channel on 32 outputs (19.2 A total, 24 W) but that exceeds the 0.5 A rating per channel. Do not exceed 0.5 A per channel regardless of how many channels are active.

Q: Does the BNC board require a heatsink?
A: No – the 4 oz PCB acts as a heatsink. The board is designed for natural convection at 0.5 A per channel up to 55°C ambient. At 55°C with all outputs at 0.5 A, the board will reach 85-90°C (within spec). For long life (10+ years), we recommend a fan tray to keep board below 70°C. For 0.3 A operation, no fan needed.

Q: What is the expected life of the 4 oz PCB traces at 32 A total?
A: The 4 oz copper traces are rated for 32 A continuously. Temperature rise of traces is approximately 30°C above ambient. At 55°C ambient, traces reach 85°C – well within the 130°C rating of FR4. Expected life >15 years. However, the terminal block pins may overheat if not torqued correctly. Use a torque screwdriver (0.6 Nm) on all field wiring terminals. We sell torque drivers for $25.

Q: Do you offer a version with conformal coating for chemical plants?
A: Yes – special order DS200DCFBG1BNC-CC (silicone coated). Lead time is 14-21 days. Cost adds $85. For chemical plants requiring 0.5 A outputs, we recommend coated BNC. The silicone coating adds thermal resistance – derate to 0.4 A per channel at 55°C ambient. For coated version in cold chemical plants (LNG), specify BLC (silicone + extended temp, but BLC is 0.3 A only). For 0.5 A in cold + chemical, use BNC-CC with cabinet heating to maintain 0°C minimum.

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