Clamps for Semiconductors

GD Rectifiers offer a large range of semiconductor heatsink clamps designed for mounting contact faces up to 140mm with forces ranging from 3kN to 80kN.

Clamps for semiconductors.

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Clamps for Semiconductors

Semiconductor heatsink clamps designed for mounting contact faces up to 140mm with forces ranging from 3kN to 80kN.

GD Rectifiers manufacture a large range of high quality press-pack semiconductor heatsink clamps designed for mounting contact faces up to 140mm with forces ranging from 3kN to 80kN. GD Rectifiers offer three types of clamps for semiconductor capsules: box clamps, bar clamps and spring bar clamps, used for single-sided or double-sided cooling applications in high powered semiconductor assemblies. In addition to our standard range of box, bar and spring bar clamps, GD Rectifiers can design and manufacture semiconductor clamps to specific customer requirements and applications.

The semiconductor clamps apply a force that minimises both electrical and thermal resistance ensuring the semiconductor remains in close contact with the heatsink and busbars, allowing the circuit to operate as intended. GD Rectifiers also have the capability to increase or decrease the clamping forces that the clamps exert, making them suitable for a wider range of capsules. Both single sided or double sided bar clamps, box clamps and flat based conversion kits are available.

GD Rectifiers semiconductor clamps have been specifically designed to meet the requirements of all semiconductor manufacturers to optimise maximum performance from the devices and are used in heatsink and power assemblies. GD Rectifiers offers a large range of air-cooled and liquid-cooled heatsinks, and a comprehensive range of power assemblies in many circuit configurations are available for fast delivery.

For further information, including semiconductor clamp mounting instructions, please click here.

View the complete capsule device index here.

For a specific datasheet, please click on the part number in the tables below.

Our clamps are suitable to be used with all semiconductor manufacturer’s components and devices. 

Box Clamp Style Box style clamps by GD Rectifiers

Box clamps are used with puk and capsule style semiconductors that require single-sided cooling. Box clamps are used in conjunction with internal spring washers allowing the correct force to be applied when the four bolts are tightened enabling contact with the heatsink. This range of high quality, precision box clamps have a maximum force of up to 40kN.

Pt No Outside Dims mm Fixing mm Device max Dia mm Device Height mm Pressure kN max Temp range max Deg C Voltage Vac Cooling medium Drawing ref
BX42 46×46 50 pcd 4xM5 42 13-16 7.5 -40+90 690 Air Data
BX52 56×56 61 pcd 4xM6 52 13-26 10 -40+90 690 Air Data
BX59 65×65 70 pcd 4xM6 59 25-31 15 -40+90 690 Air Data
BX59LP 66×60 54×48 4xM6 59 26 12 -40+110 690 Air 010120
BX75 90×90 65×65 4xM10 75 20-40 30 -40+140 690 Air 010190
BX127 127×127 103×103 4xM12 127 20-40 40 -40+140 690 Air 010200

 

Bar Clamp Bar clamp by GD Rectifiers

Bar clamps are designed to be used with puk and capsule style semiconductors that require double-sided cooling. This range of high quality, precision bar clamps have a maximum force of up to 45kN.

Pt No Outside Dims mm Fixing mm Device max Dia mm Device Height mm Pressure kN max Temp range max Deg C Voltage Vac Cooling medium Drawing ref
BC54S 70×15 54 Ctr 2xM6 45 14-40 6 -40+110 1000 Air 10100
BC54D 70×15 54 Ctr 2xM6 45 14-40 20 -40+110 1000 Air 10102
BC79S 104×25 79 Ctr 2xM8 67 14-40 20 -40+110 1000 Air 10100
BC79LS 104×25 79 Ctr 2xM8 67 14-40 20 -40+110 1000 Air 10100
BC79D 104×25 79 Ctr 2xM8 67 14-40 20 -40+110 1000 Air 10102
BC79LD 104×25 79 Ctr 2xM8 67 14-40 20 -40+110 1000 Air 10102
BC89S 115×25 89 Ctr 2xM8 77 14-40 20 -40+110 1000 Air 10100
BC89LS 115×25 89 Ctr 2xM8 77 14-40 20 -40+110 1000 Air 10100
BC89D 115×25 89 Ctr 2xM8 77 14-40 20 -40+110 1000 Air 10102
BC89LD 115×25 89 Ctr 2xM8 77 14-40 20 -40+110 1000 Air 10102
BC118LS 145×25 118 Ctr 2xM8 105 14-40 32 -40+110 1000 Air 10100
BC118LD 145×25 118 Ctr 2xM8 105 14-40 32 -40+110 1000 Air 10102
BC140D 170×25 140Ctr 2xM10 126 25-40 45 -40+120 1000 Air 10006

 

 

Spring Bar Clamp Clamps for semiconductors

Our traditional spring bar and indicating clamping system supports the full range of semiconductor devices. This range of high quality, precision clamps have a maximum force of up to 80kN.

Pt No            Outside Dims mm Fixing mm Device max Dia mm Device Height mm Pressure kN max Temp range max Deg C Voltage Vac Cooling medium Drawing ref
SBC89S 123×25 89 Ctr 2xM8 76 14-40 22 -40+110 1000 Air 010011/12
SBC89LS 123×25 89 Ctr 2xM8 76 14-40 22 -40+110 1000 Air 010011/12
SBC132S 166×25 132 Ctr 2xM10 118 14-40 40 -40+120 1000 Air 010013/14/15
SBC132SV 166×27 132 Ctr 2xM10 118 14-40 40 -55+175 2000 Air/Oil 010013/14/15HV
SBC132SV1 166×27 132 Ctr 2xM10 118 14-40 70 -55+175 2000 Air/Oil 010016HV
SBC132DV 172×36 132 Ctr 2xM12 118 14-40 40 -40+190 2000 Air 010016
SBC132DV-1   172×36 132 Ctr 2xM12 118 14-40 80 -40+190 2000 Air 010017
SBC146SV 180×27 146 Ctr 2xM10 132 14-40 80 -55+175 2000 Air/Oil 010018HV
SBC146DV 180×32 146 Ctr 2xM16 126 14-40 80 -40+190 2000 Air/Oil 010019

 

For further information please contact us on 01444 243 452 or email enquiries@gdrectifiers.co.uk.