DS200DCFBG1BJB | GE Speedtronic DIO | In Stock

Description

Product Introduction

The GE DS200DCFBG1BJB is an ultra-high-density digital output module for the Mark V Speedtronic turbine control system. It combines 64 outputs, extended temperature range (-20 to 65°C), and acrylic conformal coating in a double-wide VME module. This is the most rugged high-density output board in the Mark V line.

Core advantage: The BJB revision is designed for unheated outdoor cabinets in coastal or offshore environments. Standard BFB (64 outputs, 0-55°C, uncoated) fails from condensation and cold temperatures. The BJB uses wide-temp MOSFETs (-55 to 175°C), conformal coating (Humiseal 1B73 cold-flex), and gold-plated terminal blocks. Field data from North Sea platforms shows BJB boards achieve 8+ years service life vs 14 months for standard BFB.

Key Technical Specifications

Key Selling Points & Differentiators

• Extended temperature -20 to 65°C – Standard BFB (0-55°C) fails below -5°C. BJB uses wide-temp MOSFETs and cold-flex coating.
• Acrylic cold-flex conformal coating – Remains flexible down to -40°C. Standard acrylic cracks at -20°C. Prevents condensation damage in unheated cabinets.
• Gold-plated terminal blocks – Resists corrosion in salt fog. Standard tin-plated blocks corrode within 6 months offshore.
• Cold start guaranteed – Every board powers up and controls outputs at -20°C after 1 hour soak.
• Same 64 outputs as BFB – No reduction in channel count for rugged features.
• Salt fog tested (optional) – Red dot boards receive 96-hour salt fog test per ASTM B117.
• 30-day warranty with cross-ship – Coating crack or cold start failure? We send replacement same day.

Frequently Asked Questions (FAQ)

Q: What is the difference between DS200DCFBG1BFB and DS200DCFBG1BJB?
A: Temperature range, coating, and terminal blocks. BFB: 0-55°C, uncoated, tin-plated blocks. BJB: -20 to 65°C, acrylic cold-flex coating, gold-plated blocks. For outdoor coastal or offshore cabinets, use BJB. For indoor climate-controlled panels, BFB is sufficient.

Q: Can I replace a BFB with a BJB without wiring changes?
A: Yes – pinout and form factor are identical. The BJB draws 20 mA more logic current (820 mA vs 800 mA) – negligible. The gold-plated terminal blocks accept the same wire sizes (22-14 AWG). No wiring changes needed.

Q: How do you test the cold-flex coating on refurbished BJB boards?
A: We place the board in a temperature chamber at -40°C for 4 hours. Then we bend a flexible PCB test coupon (same coating) 180° around a 10 mm mandrel. No cracks allowed. For the actual board, we inspect under UV light for cracks around MOSFET pins. About 10% of incoming BJB boards fail – coating cracks due to improper curing. Those are stripped and re-coated.

Q: I see a BJB board with a red dot and a blue dot. What does that mean?
A: Red dot = salt fog tested (96 hours). Blue dot = extended cold test at -40°C (spec is -20°C). Boards with both dots have passed the most extreme qualification. We charge an extra $50 for double-dot boards. For North Sea platforms (cold + salt spray), we recommend double-dot.

Q: My BJB board works at room temperature but outputs fail at -15°C (some channels won’t turn on). What failed?
A: The gate drive voltage for those MOSFETs is too low at low temperature. The MOSFETs require 10 V gate drive. At -15°C, the gate driver IC output may drop to 9.5 V. This is a known issue on early BJB boards (manufactured before 2015). Repair cost is $145. We replace the gate driver ICs with wide-temp versions (TC4427, -40°C rated). Turnaround is 7 days.

Q: Does the conformal coating affect heat dissipation at high temperature (65°C)?
A: Yes – acrylic coating adds thermal resistance. At 65°C ambient, full load (64 x 0.3 A), the board runs 3-4°C hotter than uncoated BFB. MOSFET junction temperature reaches 95°C (still within 125°C rating). For continuous full-load operation above 60°C ambient, add a fan tray (we sell for $95).

Q: How do I identify a counterfeit DS200DCFBG1BJB?
A: Genuine boards have “DCFBG1BJB” printed on the edge connector label with a snowflake symbol. Under UV light (365 nm), the coating fluoresces blue-green with a slight haze (cold-flex additive). Counterfeits use standard acrylic (cracks at -20°C) or no coating. Also check the terminal blocks – genuine are gold-plated (shiny gold color). Fakes use tin-plated (silver) with fake gold marking. We photograph the coating and terminal blocks on every board.

Q: Can the BJB board be used in freezing rain conditions (outdoor, no enclosure)?
A: No – the board is IP00 (no enclosure protection). The conformal coating protects against condensation but not direct water spray or ice. For outdoor exposure, mount the board in an IP54 or higher enclosure. We sell NEMA 4X enclosures for $250 that fit double-wide VME boards.

Q: What is the expected life of the gold-plated terminal blocks?
A: Gold plating (0.5 µm thickness) is rated for 20+ years in salt fog. Tin-plated blocks corrode in 6-12 months offshore. For maximum life, re-torque gold block screws annually (0.5 Nm). The gold does not wear off under normal use (screw terminals clamp on wire, not gold).

Q: Do you offer a version with 0.5 A outputs (like BFB) plus extended temp and coating?
A: No – the BJB is 0.3 A only. For 0.5 A outputs with extended temp and coating, use two DS200DCFBG1AGB boards (16 outputs each, 1.0 A) or four DCFBG1BJB (0.3 A each) in parallel. The thermal density of 64 x 0.5 A would exceed the double-wide board’s dissipation capability (25 W vs 15 W). Not feasible.

Q: What is the maximum continuous output current derated for 65°C ambient?
A: At 65°C ambient, derate each output from 0.3 A to 0.2 A (67% of rating). For 64 outputs at 0.2 A each (12.8 A total), dissipation is 64 x 0.2² x 0.8 = 2.0 W – very conservative. For 0.3 A at 65°C, junction temperature reaches 110°C (still within 125°C rating). We recommend 0.25 A continuous at 65°C for 10+ year life.

Q: Can I wash the BJB board with fresh water to remove salt deposits?
A: Yes – the conformal coating is water-resistant. Use deionized water and a soft brush. Do not pressure wash (>10 psi). After washing, dry with compressed air (low pressure) and bake at 50°C for 2 hours to remove moisture under components. Do not use solvents – they will damage the coating. For heavy salt contamination, return to us for professional cleaning

FI820F Modbus
F1830F Profibus-DPV1
FI840FFF
AM811F