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SR270K10D Datasheet(PDF) 19 Page - WALSIN TECHNOLOGY CORPORATION

Part No. SR270K10D
Description  High performance transient voltage suppression
Download  24 Pages
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Maker  WALSIN [WALSIN TECHNOLOGY CORPORATION]
Homepage  http://www.passivecomponent.com/
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SR270K10D Datasheet(HTML) 19 Page - WALSIN TECHNOLOGY CORPORATION

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THE PROCESS CONTROL OF VARISTOR
Process
Inspection
Items
Control
Method
Raw materials
Product line test
IQC report
Weighing
Weight
Weighing accuracy control
Record check
Periodical calibration
Wet mixing
Solid content
Mixing time
Record and check
Spray drying
Rheology and viscosity of slurry
Slurry density
Spray drying conditions
Record and check
Granulated powder
Moisture content,flowability,
Tap density
Sampling test
Forming
Dimension of green body
Weight of green body
Record and check
Binder Burn-out
Burn-out temperature and time
Record and check
Sintering
Sintering profile
Automatic record and monitor
Record and check
Electrical test
Vb. Leakage current, clamping
Voltage, capacitance
Every batch by
sampling
Electrode applying
Heat treating temperature, time,
Visual inspection
Record and check
Soldering & Coating
Temperature and visual inspection
Every batch
Cutting Leads
Visual inspection, Lead length
Every batch 100%
Final test
Electrical: Vb, leakage current, alpha Every batch 100%
Marking
Visual inspection
Every batch
Quality control
Vb, leakage current, alpha,
Clamping voltage, surge test,
Dimension, solderability
Every batch
sampling
Packing & Shipment
PO #, Customer name, Quantity,
P/N, address
Every shipment


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