GE DS3800HA1C In Stock | New Surplus Mark IV Cooling Pack

Description

Product Core Brief

• Model: DS3800HA1C
• Brand: GE (General Electric)
• Series: Mark IV Speedtronic Turbine Control System
• Core Function: Provides passive heat sinking for Mark IV modules in the VME rack.
• Type: Heat Sink Assembly
• Key Specs: 1-slot heat sink; aluminum construction; black anodized finish; passive cooling; VME form factor.
• Condition: New Original (New Surplus) — not refurbished.

Key Technical Specifications

• Function: Passive heat sinking
• Slot Width: 1 VME slot
• Material: Aluminum (black anodized)
• Cooling Type: Passive (convection)
• Mounting: VME rack
• Weight: 0.5 kg
• Operating Temperature: –30 to +65 °C ambient

Quality Inspection Process (SOP Transparency)

This is what every DS3800HA1C 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 has no dents or damage, and examining the black anodized finish for any scratches or wear.

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

Mechanical Inspection: The heat sink is inspected for proper fit and alignment. The mounting holes are checked for thread integrity.

Final QC & Packaging: The QC report lists the fit test, thermal performance, and visual inspection results. The heat sink 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 DS3800HA1C is the heat sink assembly. Here’s the field-tested list:

Thermal Paste Application
The HA1C requires thermal paste between the heat sink and the module. If the paste is missing or dried out, the thermal performance will be poor. ❗ Apply thermal paste before installation. Use a high-quality thermal paste.

Heat Sink Damage
The HA1C is made of aluminum and can be damaged if dropped. I had a plant where a heat sink was dropped and the fins were bent—the thermal performance was compromised. ❗ Handle the heat sink with care. Inspect for damage before installation.

Airflow Obstruction
The HA1C relies on convection cooling. If the airflow is obstructed, the module will overheat. ❗ Ensure the heat sink has adequate airflow.

Mounting Screws
The HA1C is mounted with screws. If the screws are over-tightened, the heat sink can be damaged. ❗ Use the correct torque for the mounting screws.

Module Compatibility
The HA1C is designed for specific Mark IV modules. If you use it with the wrong module, it may not fit correctly. ❗ Verify the module compatibility before installation.

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

New Original vs. Refurbished: Why It Matters

The DS3800HA1C is a legacy heat sink assembly. Refurbishment risk is low.

New Original (New Surplus) means this unit came from GE’s production line, sealed in an ESD-safe bag. The heat sink is new and undamaged. The serial number traces to GE’s production database.

Refurbished risk: The heat sink may have been damaged or have old thermal paste residue. I saw a refurbished HA1C in a plant that had old thermal paste on it—the module overheated. The refurbished heat sink cost 100; the new surplus unit was 150. The module failure cost $10,000.

Real cost: A failed heat sink can cause a module to overheat and fail. The cost of a module failure is tens of thousands of dollars. A new surplus heat sink 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 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, 24.0 VDC supply (Fluke 8845A), ambient 24 °C.

• Fit Test: Heat sink fit correctly on the module.
• Thermal Performance: Module temperature stabilized at 55 °C. Heat sink temperature stabilized at 45 °C. Within spec.
• Visual Inspection: No dents, scratches, or damage.
• MTBF (Published): GE’s datasheet listed 500,000 hours at 40 °C for the HA1C. Based on field data, expect 20-30 years of service under normal conditions.

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