Kool-Pads
Insulator Bushes BQ		  
Transistor mounting bushes for isolating fixing bolts from the transistor metal tab or body.

Glass filled nylon and PTFE


Suitable for TO-3, TO-220,
DO-4 and DO-5 applications


Kool-Pads®  ZAO Ceramics  

Aluminium oxide ceramic insulators with low capacitance and creepage.

Thermal resistance 0.38°C/Watt

Breakdown voltage 18kV/mm

Maximum working temperature 1200°C

Standard thickness 3.0mm

Custom thickness 0.25 to 1.5mm


Kool-Pads
CM20 - NA or AC		  
Graphite composition thermal pad. A dry alternative to thermal compound providing excellent thermal and electrical conductivity.

Thermal resistance 0.07°C/Watt

Volume Resistivity 0.002 Ohms-cm

Temperature range -200 to +500°C

Thickness 0.20mm

Self adhesive option

Kool-Pads®  CR50  
Graphite composition thermal pad with nickel re-enforced interliner. A dry alternative to thermal compound providing excellent thermal and electrical conductivity.

Thermal resistance 0.12°C/Watt

Volume Resistivity 0.002 Ohms-cm

Temperature range -200 to +500°C

Thickness 0.4mm to 2.0mm thick

Kool-Pads®  GTQ1500  
Thermal interface material.

Alumina-filled reinforced thermal gel

Standard thickness range: 0.25 mm–1.0 mm (0.010"–0.040")

Thermal conductivity: 1.1 W/m°K

Kool-Pads®  HeatPath GTQ 2100  
Gap-filler thermal interface material.

Alumina-filled reinforced thermal gels

Standard thickness range: 1.5 mm–4.6 mm (0.060"–0.180")

Thermal conductivity: 0.7 W/m°K

Kool-Pads®  K177  
K177 is a general purpose low cost thermally conductive insulator. Below is a brief summary of the important technical details.

Thermal resistance 0.45°C/Watt

Breakdown voltage 3500V

Temperature range -60 to +180°C

Thickness 0.177mm

Self adhesive option

UL94V-0 rating

Kool-Pads®  K180  
Thermally conductive interface materials.

Thermal resistance 0.30°C/W (TO3 profile)

Breakdown voltage 3500V

Temperature range -60 to +180°C

Thickness 0.14mm

Non-adhesive, and adhesive backed options

Kool-Pads®  K200  
High conductivity low cost insulators.

Thermal resistance 0.28°C/Watt

Breakdown voltage 1000V

Temperature range -60 to +180°C

Thickness 0.200mm

Self adhesive option

UL94V-0 rating

Kool-Pads®  K228  
K228 is a general purpose low cost thermally conductive insulator. Below is a brief summary of the important technical details.

Thermal resistance 0.50°C/Watt

Breakdown voltage 4500V

Temperature range -60 to +180°C

Thickness 0.228mm

Self adhesive option

UL94V-0 rating

Kool-Pads®  K230  
High performance thermally conductive insulators.

Thermal resistance 0.35°C/Watt

Breakdown voltage 4500V

Temperature range -60 to +180°C

Thickness 0.230mm

Self adhesive option

UL94V-0 rating

Kool-Pads®  K381  
Ultra high performance thermally conductive insulators.

Thermal resistance 0.20°C/Watt

Breakdown voltage 4000V

Temperature range -60 to +180°C

Thickness 0.381mm

UL94V-0 rating

Kool-Pads®  K150-2AC  
Microprocessor thermal interface pads. Constructed from highly conductive foil with thermally conductive adhesive on both sides. Eliminates the need for clips or clamps.

Thermal resistance 0.49°C/Watt

Temperature range -20 to +155°C

Thickness 0.16mm

Kool-Pads®  KK071-AC  
Thermally conductive insulators for resisting cut-through from burrs and sharp edges.

Thermal resistance 0.45°C/Watt

Breakdown voltage 4500V

Temperature range -60 to +180°C

Thickness 0.071mm

Supplied with self adhesive

UL94VTM-0 rating

Kool-Pads®  Kool Flo  
Phase change thermal interface material for optimum heat transfer at the heatsink/ component interface.

Thermal resistance from 0.07°C/Watt

Melt point 50°C

Thickness 0.127 to 0.18mm

Kool-Pads®  Kool Form  
Highly conformable thermally conductive air gap filler. Ideal for filling irregular gaps between PCB's and heatsinks or metal covers.

Thermal resistance 1.0°C/Watt (0.51mm)

Breakdown voltage 6000V

Temperature range -60 to +200°C

Thickness 0.51 to 4.8mm

Kool-Pads®  Profiles  
View a range of 150 standard outlines, all available on short leadtimes, with no additional tooling charges.

Kool-Pads KPS  
Thermally conductive insulators with integral RF shield for use with HF switching transistors.

Thermal resistance 0.76, 0.80 or 1.10°C/Watt

Breakdown voltage 2000V

Temperature range -60 to +180°C

Thickness 0.18 or 0.49mm

Dielectric constant 2.2, 2.7 and 2.9 at 1000Hz

Kool-Pads KGT  
High performance durable insulating interface material.

Thermal resistance 0.17 or 0.20°C/Watt

Breakdown voltage 4000 or 5000V

Temperature range -40 to +200°C

Thickness 0.254 or 0.508mm

Self adhesive option

UL94HB rating

Kool-Pads KTP  
Optimum thermal performance, highly compliant insulating interface material.

Thermal resistance from 0.07 °C/Watt

Breakdown voltage 2500V min

Temperature range -40 to +200°C

Thickness 0.127 to 5.08mm

Self adhesive option

UL94HB rating

Kool-Pads PK17  
Low cost alternative to all other types of thermally conductive insulators

Thermal resistance 0.45 or 0.35°C/Watt

Breakdown voltage 5500 or 4500V

Temperature range -20 to +150°C

Thickness 0.229mm

Kool-Pads PK23  
Low cost alternative to all other types of thermally conductive insulators

Thermal resistance 0.45 or 0.35°C/Watt

Breakdown voltage 5500 or 4500V

Temperature range -20 to +150°C

Thickness 0.229mm

Kool-Pads Thermaflex Tubes  
Thermally conductive tubes for total insulation of TO-220 and TO-3P transistors in clip mounted applications.

Thermal resistance 0.92°C/Watt

Breakdown voltage 7kV

Temperature range -55 to 180°C

Thickness 0.5mm

UL94V-0 rating

Kool-Pads Thermaflex  
High voltage thermally conductive insulators.

Thermal resistance 0.92 to 2.0°C/Watt

Breakdown voltage 7kV to 20kV

Temperature range -55 to +180°C

Thickness 0.5 or 2.0mm

Self adhesive option

UL94V-0 rating

Kool-Pads® Thermal Compounds  
Insulating adhesive for bonding components to heatsinks.

also

Heat transfer grease. (Silicone and synthetic)


Kool-Pads® Clip Mount Transistor clips  
Low cost and quick mounting. Allows plastic case transistors to operate at higher voltages than screw and insulating bush method.

Sizes TO-126, TO-220, TO-218, TO-247, SOT-93

Mounting forces 4.0 to 10Kg

Delta tone plated steel or Nylon coated steel options

Panel thickness 1.2 to 3.0mm

Kool-Pads® CLIPS GULL WING  
Space saving gull wing type. Allows mounting of one or two transistors per clip.

Sizes TO-220, TO-218 and TO-247

Mounting forces 7.5 to 15Kg

Zinc plated steel with clear passivated finish

Optional nylon coated version for higher voltage isolation

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Pad Profiles
BQ insulating bushes
CM20 - NA / AC
TP1500
TP2100
KK071-AC
K177 - NA / AC
K180 - NA / AC
K200 - NA / AC
K228 - NA / AC
K230 - NA / AC
K381 - NA
KA150-2AC
KF - Koolform
KFL - Koolflo
KP adhesives and greases
KPS
KTG
KTP
PK 17 - NA
PK 23 - NA
THER-T
THER - 05, 07, 10, 15, 20
TSC transistor clips Thread Lock
TSC transistor clips Spring Lock
ZOA-30