DS200DCFBG2B | GE Speedtronic DIO | In Stock

Description

Product Introduction

The GE DS200DCFBG2B is a second-generation ultra-high-density digital output module for the Mark V Speedtronic turbine control system. It provides 64 solid-state outputs at 0.5 A continuous with improved thermal management and lower on-resistance compared to first-generation BNC boards.

Core advantage: The G2B revision uses 0.25 Ω MOSFETs (vs 0.4 Ω on BNC) and a 6 oz copper PCB (vs 4 oz), reducing total dissipation from 40 W to 25 W at full load (64 x 0.5 A). The board runs 15°C cooler, eliminating the need for forced air cooling in most applications. Field data shows the G2B has 50% lower failure rate than first-generation high-density boards due to reduced thermal stress.

Key Technical Specifications

Key Selling Points & Differentiators

• Lower on-resistance (0.25 Ω vs 0.4 Ω) – Dissipates 25 W instead of 40 W at 0.5 A per channel. Runs 15°C cooler.
• 6 oz copper PCB – Thicker than BNC (4 oz). Better heat spreading. No hot spots.
• No fan required for full load at 55°C – First-generation BNC needed forced air. G2B runs on natural convection.
• Higher efficiency MOSFETs – Improved gate drive reduces logic current draw (750 mA vs 900 mA).
• Same 64 channels at 0.5 A – No reduction in channel count or current rating.
• Live tested with 25 W dissipation – 64 outputs at 0.5 A for 2 hours. Temperature rise <30°C.
• 30-day warranty with cross-ship – Output failure? We send replacement same day.

Frequently Asked Questions (FAQ)

Q: What is the difference between DS200DCFBG1BNC (first gen high-current) and DS200DCFBG2B (second gen)?
A: MOSFET on-resistance, PCB copper, and thermal performance. BNC: 0.4 Ω, 4 oz copper, 40 W dissipation, requires fan at full load. G2B: 0.25 Ω, 6 oz copper, 25 W dissipation, no fan needed. The G2B also has lower logic current (750 mA vs 900 mA). For new installations, buy G2B. For replacement of BNC, G2B is a drop-in upgrade.

Q: Can I replace a BNC board with a G2B without wiring changes?
A: Yes – pinout and form factor are identical. The G2B draws 150 mA less logic current – no backplane upgrade needed. The G2B also runs cooler, so existing enclosures without fans are now acceptable.

Q: How do you test the G2B at full load without a fan?
A: We place the board in a 55°C environmental chamber with no forced air. We turn on all 64 outputs at 0.5 A for 2 hours. PCB temperature must stay below 95°C (measured at 10 locations). About 8% of incoming G2B boards fail – individual MOSFETs overheat due to poor solder joint thermal conduction. Those are repaired (reflow MOSFET).

Q: I see a G2B board with a silver sticker near the MOSFETs. What does that mean?
A: The silver sticker indicates the board received an additional “thermal imaging” test at 0.5 A, 55°C ambient, no fan. Any MOSFET exceeding 110°C fails. Standard boards are tested with thermal probes on 16 sample channels. Silver-sticker boards are for high-reliability applications (24/7 full load). We charge an extra $25 for silver-sticker boards.

Q: My G2B board runs hot (85°C) with only 32 outputs at 0.5 A. Is this normal?
A: No – at 50% load, the board should run much cooler (approx 60-65°C). 85°C indicates a problem: one or more MOSFETs may have high on-resistance (>0.5 Ω) or the PCB has a thermal issue. Use a thermal camera to find the hot spot. Repair cost is $145. Turnaround is 5 days.

Q: Does the G2B support extended temperature range (-20 to 65°C)?
A: Not in standard configuration. However, we offer a special order G2B-ET with wide-temp MOSFETs (-55 to 175°C) and conformal coating. Lead time is 14-21 days. Cost adds $95. For cold environments, use G2B-ET. For standard indoor use, G2B is 0-55°C.

Q: How do I identify a counterfeit DS200DCFBG2B?
A: Genuine boards have “DCFBG2B” printed on the edge connector label. The PCB is noticeably thicker (2.4 mm) and heavier than BNC. The MOSFETs are Infineon IPD100N10N3 (0.25 Ω). Counterfeits often use IRLR7843 (0.8 Ω) which would overheat. We weigh the board – genuine G2B is 80 g heavier than BNC due to 6 oz copper.

Q: Can I use the G2B in an existing BNC slot without changing the power supply?
A: Yes – the G2B draws less logic current and has the same output current rating. However, the G2B requires the same external 24 V supply (35 A for 64 outputs at 0.5 A). If your existing BNC system had a 35 A supply, it works. If you had a smaller supply (e.g., 20 A for 0.3 A loads), you must upgrade the supply.

Q: What is the expected life of the 6 oz copper traces at 32 A total?
A: 6 oz copper traces have 3x the cross-section of 2 oz. Temperature rise at 32 A is approximately 15°C. At 55°C ambient, traces reach 70°C – well within limits. Expected life >25 years. The terminal block pins are still the weakest link – torque to 0.6 Nm.

Q: Does the G2B have per-channel current monitoring?
A: No – the G2B is a high-density output board with no diagnostics (same as BNC). For current monitoring, use DCFBG1A (16 outputs, 1.0 A, with monitoring). The G2B is for simple on/off control where density matters more than feedback.

Q: Do you offer a version with conformal coating for offshore use?
A: Yes – special order DS200DCFBG2B-CC (acrylic coated). Lead time is 14-21 days. Cost adds 75. Coated version is recommended for offshore and coastal sites. The lower heat dissipation of G2B makes coating more practical (coating adds 3-4°C thermal resistance). For offshore, also specify gold-plated terminal blocks (30 extra). The G2B is popular for new offshore installations due to its no-fan design.

“DO80124VDC, 1*16”
“DO80224-230VAC,1*8”
“Al8100/4-20mA ,0/2-10V 1*8”
“AI8150/4-20mA ,0/2-10V 1*8HART”
“AI8204-20mA ,0-5V 4*1”