Home | Contact Us | About Aavid | Sales Rep Log In
---Useful Links---
Search by part #
Check distributor
part inventory
Browse Heat sinks
- By Device -
- By Product Line -
-Attachment Methods-
- Interface Materials -
- Accessories -
Useful Links
•Building a part #
•Catalog Request
•Directions
•Find Distributor
•Find Sales Rep
•How to order?
•MSDS Safety Sheets
•Part # Cross Ref
•Quote Request
•RoHS Initiative
•Sample Request
Insulators
Aluminum Oxide Ceramic RoHS Compliant
Insulating Covers RoHS Compliant
Bushings RoHS Compliant
Aluminum Oxide Ceramic
Aluminum oxide insulating washers have a dielectric strength of approximately 21.7 x 10 3 volts/mm
for .76mm material (550 volts/mil for 0.030 inch materail) and 16.9 x 10 3 volts/mm for 1.57mm material (430
volts/mil for 0.062 inch materail). The thermal conductivity of aluminum oxide is 15.06 W/mK at 75° (167°
F) [8.71 BTU/hr -ft° F].
Aluminum oxide has unique thermal conductivity qualities and features low loss factors at high frequencies.
It has high compressive strengths, high volume resistivity, low thermal expansion and it resists radiation.
Note: Hole diameters are +/ - .13mm (.500"), angularity is +/ - 1° and flatness is .05mm (.002") TIR unless
otherwise specified.
For TO - 3
*Thickness:
4103: 1.78 (0.070) to 2.03 (.080)
4104: 1.52 (0.060) to 2.03 (0.080)
Part
Number RoHS PCN A B C D E
4103G* 39.70
(1.563) 26.67
(1.050) 13.34
(.525) 4.75
(.187) 30.40
(1.197)
4104* N/A 44.45
(1.750) 31.75
(1.250) 15.88
(0.625) 7.16
(0.282) 30.15
(1.187)
For TO - 220
Part
Number RoHS PCN A B C D E
4169G* 19.30
(0.760) 13.97
(0.550) 4.78
(0.188) 6.98
(0.275) 3.68
(0.145)
4170G** 19.30
(0.760) 13.97
(0.550) 4.78
(0.188) 6.98
(0.275) 3.68
(0.145)
4171G** 16.51
(0.650) 12.70
(0.500) 4.32
(0.170) 6.35
(0.250) 3.81
(0.150)
4177G** 17.45
(0.687) 14.27
(0.562) 5.54
(0.218) 7.14
(0.281) 3.18
(0.125)
*Thickness 1.57mm +/ - 0.08 (0.062" +/ - 0.003"); surface flatness is 0.10mm
(0.004") TIR
**Thickness 1.78mm +/ - 0.25 (0.070" +/ - 0.010")
For TO - 218, TO - 247, and TO - 3P
Part
Number RoHS PCN A B C D E
4180* 23.24
(0.915) 18.80
(0.740) 6.98
(0.275) 9.40
(0.370) 3.96
(0.156)
*Thickness:2.03mm +/ - .25 (.080" +/ - .010")
Insulating Covers
TO-3 Insulating Covers are designed to provide protection from accidental shock during field service or
repair.
8903 Screw Mounted Cover
Pan head screws not provided - MS 51957 -30 or equivalent recommended - secure the cover to the TO -3.
At the typical mounting screw torque of .68 - .90 Nm (6 -8 inch pounds), the TO -3 cover material cold -
flows around the screw head to securely fasten the cover.
Included are No.6 split washers as inserts to provide electrical connection of mounting screws to the TO -3
collector and an insulating snap -in cover for the screw heads. A test probe hole is provided in the top of
the cover.
The 8903VB is made from thermoplastic polyester that meets the requirements of UL Bulletin 94 V -O. In
addition to its excellent flammability rating, thermoplastic polyester offers resistance to most chemical
environments, heat deflection temperature to 215.6°C (420°F) and UL continuous use temperature of 130 °
C (266 °F).
Part
Number RoHS PCN Material Color Flammability
Standards
8903NWG Nylon White Self -
extinguishing
UL 94 V -2
8903VBG Thermoplastic
Polyester Black
Self -
extinguishing
UL 94 V -0
UL 492 Type 1
8909 Snap on Cover
Designed to prevent accidental electrical shock, the 8909 fits TO -3 case styles. A test probe hole in top
eliminates the need to remove cover for testing. Recommended for low vibration applications. A precise
friction fit is required for proper assembly. Please read the engineering information release for more details
on the fit problems that can arise.
engineering information release
The 8903 cover shown above is recommended for most applications due to the typical size variation of the
TO-3 package.
Part Number RoHS PCN Material Color Flammability
Standards
8909NBG Nylon Black UL 94 V -2
Bushings
PTFE- Filled Acetal Insulators
Part Number RoHS PCN FITS Notch A Dim
103G 4.83
(0.190) 4.90
(0.193)
109G 6.35
(0.250) 6.35
(0.250)
Part Number: 110500F00000 Part Number: 110700F00000
PTFE- Filled Acetal Bushings
Part
Number RoHS PCN I.D. O.D. T
110G 5.08 / 5.21
(0.198 /
0.205)
6.86 / 6.98
(0.268 /
0.275)
1.57 / 1.40
(0.062 /
0.055)
113G 6.48 / 6.60
(0.253 /
0.260)
7.87 / 8.00
(0.308 /
0.315)
1.57 / 1.40
(0.062 /
0.055)
Nylon Bushings - Material is Nylon type 6
*Formerly Motorola Part Number B51547F002
**Formerly Motorola Part Number B51547F013
Part Number A B C
114* 4.50 / 4.63
(0.177 / 0.182) 3.56 / 3.81
(0.140 / 0.150) 1.40 / 1.66
(0.055 / 0.065)
116** 9.19 / 9.45
(0.362 / 0.372) 6.71 / 6.96
(0.264 / 0.274) 1.45 / 1.70
(0.057 / 0.067)
Home • Sitemap • Disclaimer Statement • ©2008 Aavid Thermalloy, LLC
