Gold Member Since 2016
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Shanghai Songshan Electronics Co., Ltd.

Reliable Aerospace Fuse, Reliable Space Fuse, High Reliability Space Fuse manufacturer / supplier in China, offering The Only Supplier of China′s Aerospace Grade Fuse ___ Songshan Fuse, Battery Strap Resettable PPTC 6V, Surface Mounted Devices 1206 Time-Lag Fuse and so on.

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Supplier Homepage Product Aerospace Fuse The Only Supplier of China′s Aerospace Grade Fuse ___ Songshan Fuse

The Only Supplier of China′s Aerospace Grade Fuse ___ Songshan Fuse

FOB Price: Get Latest Price
Min. Order: 100 Pieces
Port: Shanghai, China
Transport Package: Carton
Payment Terms: T/T, Western Union, Paypal

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Basic Info
  • Model NO.: GRF
  • Type: Current Fuse
  • Shape: Insert
  • Trademark: Songshan
  • HS Code: 85361000
  • Breaking Capacity: High
  • Usaga: Low Voltage
  • Standard: Sast
  • Origin: Shanghai, China
Product Description
GRF solid fuse with high reliability for aerospace application adopts the solid ceramic material for its substrates. In order to ensure high stability of the fuse, silver paste or gold paste is selected for its melt material. When overload current or short circuit occurs in the circuit of the spacecraft, excessive current will increase the temperature of the melt material rapidly, leading to the melting. The melt material in the melted state will be wrapped and absorbed by special arc extinguishing material so as to cut the circuit and prevent arcing short circuit. The gas and plasma generated in the fusing process will be limited and sealed in the fuse. There is no risk of producing cracks and sparks in the process of fusing, no escaping gases either, let alone fragment and slag. A number of rigorous tests conducted to the product proved that this product can be used in various harsh environments known to human for a long time to safeguard the safety and security of equipments, which is a leading product in the world at present. The product can replace the fuse type FM12 made by AEM company of the United States.

The Only Supplier of China's Aerospace Grade Fuse ___ Songshan Fuse
Quality Standard
SAST (the eighth institute of China aerospace science and technology's standard) 
 
Characteristics
Solid overall characteristics.
Reliable fusing characteristics.
The adaptability of harsh environment.
Long life

Breaking capacity in 1000A
 
Applications
Aerospace. the frontier of high military and civilian equipment.
 
Working Temperature
-55ºC~+125ºC.
 
Electrical characteristics
Types and SpecificationsCold resistance (Ω)Overload fusing time                 (S)Maximum Current Breaking I2t (A2S)
TypeRated Current ARated Voltage  VDCMinMax2.5In4In6In2.5In4In6In
GRF11250.1600.2600.01-0.30.001-0.0150.00015-0.0041.8750.2400.144
1.51250.1200.2100.01-0.30.001-0.0150.00015-0.0044.2180.5400.324
21250.0800.1500.01-0.30.001-0.0150.00015-0.0047.5000.9600.576
31250.0700.1200.01-0.30.001-0.0150.00015-0.00416.8752.1601.296
41250.0450.0800.01-0.30.001-0.0150.00015-0.00430.0003.8402.304
51250.0350.0700.01-0.30.001-0.0150.00015-0.00446.8756.0003.600
7.51250.0150.0300.01-2.00.001-0.0300.00015-0.006703.12527.0012.15
101250.0100.0200.01-2.00.001-0.0300.00015-0.0061250.0048.00021.60
151250.0060.0120.01-4.00.001-0.0400.00015-0.0105625.00144.0081.00
 1. Cold resistance with 0.1In testing current to test, In is Rated current.
 2. Overload fusing time In -55ºC and 2.5In must ≤5s. 
 3. In -55ºC and 2.5In, Maximum Current Breaking I2t may be larger than the indicated. Calculate temperature is -55ºC. Overload current is 2.5In maximum I2t, use the
 resulting of max fusing time to multiply I2.
 
 
 
 
 
 
 

   
 
 
 
 

 
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