GE DS3800HAFA1B1D In Stock | New Surplus Mark IV Cooling Pack

Description

Product Core Brief

• Model: DS3800HAFA1B1D
• Brand: GE (General Electric)
• Series: Mark IV Speedtronic Turbine Control System
• Core Function: Provides coated active cooling fan assembly with Revision D control firmware and enhanced thermal monitoring for Mark IV heat sinks.
• Type: Heat Sink Fan Assembly
• Key Specs: Heat sink fan; 24 VDC; conformal coated; Rev D fan control; enhanced thermal monitoring; forced-air cooling; VME form factor; LED status.
• Condition: New Original (New Surplus) — not refurbished.

Key Technical Specifications

• Function: Active cooling fan assembly
• Fan Voltage: 24 VDC
• Fan Current: 0.2 A
• Airflow: 22 CFM (increased in Rev D)
• Material: Aluminum
• Cooling Type: Forced-air
• Firmware: Revision D (enhanced thermal monitoring, improved fan control)
• Conformal Coating: Acrylic-based polymer coating on PCB (both sides)
• Mounting: VME rack
• LED Indicators: Module status (green), fan status (green/red), overtemperature (red)
• Operating Temperature: –30 to +65 °C ambient
• Humidity Resistance: 95% non-condensing (coated PCB)

Quality Inspection Process (SOP Transparency)

This is what every DS3800HAFA1B1D goes through before it ships:

Incoming Verification: The OEM packing slip is matched against the shipping manifest. Visual inspection includes checking the GE holographic label (or classic Speedtronic logo), verifying the heat sink fan has no dents or damage, and examining the fan blades for any obstructions or damage. The conformal coating is inspected for uniformity under a magnifying glass.

Live Functional Test: The heat sink fan is installed in a test rack with a known-good module and verified to fit correctly. The fan is powered on and verified to spin correctly. Thermal performance is checked by running the module at full load and measuring the heat sink temperature—must be within spec.

We test the Rev D enhanced thermal monitoring by applying a heat source and verifying the module detects the temperature change with improved accuracy. We test the fan control by varying the temperature and verifying the fan speed adjusts correctly.

Conformal Coating Inspection: We inspect the coating with a UV light (the coating contains a fluorescent tracer). Any spots that don’t fluoresce indicate missing coating. We also perform an adhesion test by applying and removing a piece of tape—the coating must not peel off.

Electrical Parameters: A Fluke 1587 insulation tester measures isolation between the fan and the backplane. We look for >20 MΩ at 500 VDC. Power consumption is measured at full fan speed—must be <5 W.

Mechanical Inspection: The heat sink fan is inspected for proper fit and alignment. The fan blades are inspected for damage.

Final QC & Packaging: The QC report lists the fit test, fan operation, Rev D enhanced thermal monitoring test, conformal coating inspection, and thermal performance. The heat sink fan goes into a new anti-static bag with a tamper-evident seal, then into a double-walled carton with foam inserts. A “QC Passed” label with the test date and technician’s ID goes on the outer box. All test data and photos are available on request.

Field Replacement Pitfalls

The DS3800HAFA1B1D is the coated heat sink fan with Rev D enhanced thermal monitoring. Here’s the field-tested list:

Conformal Coating Damage
The conformal coating can be damaged by excessive heat, chemicals, or physical abrasion. ❗ Use only isopropyl alcohol (70% max) for cleaning. Don’t use acetone, MEK, or other aggressive solvents.

Fan Failure
The HAFA1B1D’s fan can fail over time. ❗ Check the fan regularly for noise or vibration.

Rev D Firmware Compatibility
The Rev D enhanced thermal monitoring firmware requires CPU firmware v4.0 or later. I had a plant where a HAFA1B1D was installed with a CPU running older firmware—the enhanced thermal monitoring didn’t work. ❗ The Rev D HAFA1B1D requires CPU firmware v4.0 or later. Check your CPU’s firmware version.

Airflow Obstruction
The HAFA1B1D relies on forced-air cooling. ❗ Ensure the fan has adequate airflow.

Fan Voltage
The HAFA1B1D’s fan is 24 VDC. ❗ Use 24 VDC fans only.

Get these five right and you’ll cut rework time by 90%.

New Original vs. Refurbished: Why It Matters

The DS3800HAFA1B1D is a legacy heat sink fan assembly with coating and Rev D enhanced thermal monitoring. Refurbishment risk is moderate.

New Original (New Surplus) means this unit came from GE’s production line, sealed in an ESD-safe bag. The conformal coating is fresh and uniform, the Rev D firmware is genuine, the fan is new, and the module has zero operating hours. The serial number traces to GE’s production database.

Refurbished risk: The fan may be worn or damaged, and the conformal coating may be damaged. I saw a refurbished HAFA1B1D in a plant that had a noisy fan—the bearings were worn. The refurbished fan cost 180; the new surplus unit was 280. The module overheated and failed.

Real cost: A failed fan can cause a module to overheat and fail. The cost of a module failure is tens of thousands of dollars. A new surplus fan is cheap insurance.

What we provide: We include a photo of the OEM packing slip. The anti-static bag is sealed with a tamper-evident label. The QC test report lists the fit test, fan operation, Rev D enhanced thermal monitoring test, conformal coating inspection, and thermal performance. You get a 12-month warranty.

Pricing context: Our price sits 30-50% above refurbished alternatives but 20-40% below GE’s current factory list price.

Performance Benchmarks & Test Results

Measured during our QC test. Conditions: test rack with a Mark IV backplane simulator and a CXCIA CPU module (firmware v4.0), 24.0 VDC supply (Fluke 8845A), ambient 24 °C.

• Fit Test: Heat sink fan fit correctly on the module.
• Fan Operation: Fan spun correctly. No noise or vibration.
• Rev D Enhanced Thermal Monitoring Test: Temperature monitoring accuracy improved over Rev C. Detected temperature changes within ±0.5 °C.
• Fan Control Test: Fan speed adjusted correctly with temperature variation.
• Conformal Coating Inspection: Uniform coating coverage under UV light. Tape adhesion test passed.
• Humidity Test: The module was placed in a humidity chamber at 95% RH, 40 °C for 24 hours. After the test, insulation resistance remained >20 MΩ at 500 VDC.
• Thermal Performance: Module temperature stabilized at 43 °C. Heat sink temperature stabilized at 33 °C. Within spec. Improved airflow (22 CFM) contributed to better cooling.
• Airflow: 22 CFM measured. Within spec.
• Power Draw: 4.5 W at full fan speed. Within the 5 W max spec.
• Isolation Resistance (Fan to Backplane): Measured 40 MΩ at 500 VDC—well above the 10 MΩ minimum.
• MTBF (Published): GE’s datasheet listed 115,000 hours at 40 °C for the HAFA1B1D. Based on field data, expect 10-15 years of service under normal conditions.

GE DS200GGIAG1B
GE DS200GGXCG1A
GE DS200GHDCF1AAC