Product Description

029.359‑329 DC is a heavy‑duty wound DC solenoid coil / linear actuator sub‑component, commonly used inside Applied Materials valve assemblies, slit‑valve latch mechanisms, throttle‑valve brake assemblies or pneumatic manifold pilot valves on Centura / Endura cluster tools for 200 mm / 300 mm wafer fab. “DC” denotes direct‑current excitation; part marking format indicates OEM vendor stamp rather than AMAT top‑level PN. It generates linear magnetic force for mechanical latching, brake hold‑on, pilot valve spool shifting, or small‑stroke actuation inside vacuum‑adjacent cabinet environment. Encapsulated winding for plasma EMI resistance, high‑ambient‑temperature clean‑room operation.

Key Functions

• DC‑energized magnetic solenoid coil, provides holding force or short‑stroke linear pull for mechanical latch / brake / pilot spool
• Epoxy encapsulated winding assembly, resistant to ambient heat, process outgassing and RF plasma noise interference
• 2‑wire direct‑current power interface; no internal rectifier; tool‑side supplies regulated DC voltage
• Mechanical mounting flange / through‑hole footprint for integration onto valve body, gate‑valve latch unit or throttle‑valve brake module
• Thermal endurance for inside‑cabinet elevated ambient temperature near process chamber subsystems
• Typical failure mode: winding open‑circuit / inter‑turn short after long thermal cycling, causing loss of holding force

Application Scenarios

• Applied Materials Centura / Endura PVD, Etch, CVD cluster platform sub‑assembly OEM sub‑part
• Slit‑valve / gate‑valve mechanical safety‑latch solenoid; throttle‑valve electromagnetic brake coil; manifold pilot‑valve actuator coil
• Clean‑room semiconductor high‑volume production environment, vacuum‑adjacent equipment cabinet
• Sub‑component inside higher‑level AMAT assemblies (you need parent AMAT PN for formal spare‑part ordering)

Common Issues & FAQ

• Latch will not engage / brake releases unexpectedly: Measure DC coil winding resistance; check for open‑circuit or inter‑turn short; verify tool‑side DC supply voltage at coil connector; inspect connector pin corrosion / pin retraction.
• Coil overheating / intermittent dropout: Confirm applied DC voltage matches coil nominal rating; check for mechanical binding increasing coil continuous holding load; inspect cabinet airflow around component.
• No magnetic pull with DC voltage present: Confirm correct polarity (some DC solenoids are polarity‑sensitive); inspect wiring harness continuity; winding likely burnt‑out from over‑voltage or thermal ageing.
• Replacement note: This is an OEM sub‑marking, not AMAT top‑level part‑number. To order spares: retrieve the parent Applied Materials assembly PN printed on the valve / latch / brake main housing. After coil replacement: perform full mechanical latch / brake functional test, interlock validation and chamber dry‑cycle before returning to wafer production. Match coil DC voltage, resistance, mechanical footprint exactly.

Important Identification Tip

If you photograph the physical component and its parent assembly label, we can map this OEM sub‑marking to the corresponding top‑level AMAT part‑number, and give exact nominal DC voltage & winding resistance reference values.