102.1947 FISCHER CONNECTORS, 102.1947 Datasheet - Page 66

• Manufacturer Part Number: 102.1947
• Description: SEALING CAP, MATING FACE OF RECEPTACLE
• Manufacturer: FISCHER CONNECTORS

Specifications of 102.1947

• Accessory Type: Sealing Cap
• Rohs Compliant: Yes
• For Use With: Mating Face Of The Receptacles
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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Types of Contact Terminations
The tables of «Electrical Specifications» show the available types of terminations. Most multipole contact configurations of
series 102 through 105 can also be supplied with solder termination for printed circuits. The solder pins of these contacts are
undercut to a diameter of 0.5 mm (0.02 in) with some exceptions to 0.635 mm (0.025 in).
Crimp contacts are also available and come in various sizes suitable for a variety of wire gauges. A complete summary
including the AWG range is listed under «Accessories» and crimping tools are listed under «Assembly Tools».
For large quantity users, the crimp termination technique offers certain advantages. Frequently, faster assembly is possible
using less skilled labor. Another advantage lies in the ability to replace contacts. For all connector insulators we use high
quality engineering plastic material. However, Teflon (PTFE) insulators are not used for crimp connector as its relative
softness will not reliably retain the crimp style contacts.
The quality of a crimp connection depends primarily on the permanent deformation of the crimp barrel and the consistently
reproducible crimp force. Our crimp contacts undergo a selective high-frequency annealing process in order to soften the
bronze in the crimp area only.
Naturally, only proven, high precision crimp tools should be used. We offer a full line for your convenience.
For FISCHER multipole connectors, we suggest that you use only the closed, 8 crimp indenter according to MIL-C-22520,
class I, type 1, which guarantees a gas tight crimp as long as the tool is properly adjusted.
Coaxial connectors are also available with crimp contacts, but the center contact can be square crimped. The cable shield can
be hex crimped, both according to MIL-C-22520, class I, type 2.
FISCHER Contacts
Closed and bevelled contact entrance prevents deformation of spring surfaces.
Four 90° offset spring loaded lamellas guarantee superb wiping contact with the male pin. The contact force is 100%
checked by microprocessor-controlled automatic testers. This is important because the service life depends more
on the contact force than on the thickness of the gold plating.
All contacts are screw machined. Standard female contacts are fabricated from special spring bronze (ISO CuSn4Pb4Zn4,
ASTM C54400). The terminations of the standard crimp contacts are selectively soft-annealed.
A hard, homogeneous gold is plated over a smooth nickel layer. The standard surface treatment of the contact pins and
sockets consists of 1 µm gold according to MIL-G-45204 type I, class 1 on top of 4 µm nickel according to QQ-N-290, class
2, measured on the functional surfaces. Other plating types and thicknesses are available.
TECHNICAL INFORMATION
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The FISCHER contact design is highly reliable. It
features a very low and constant contact resistance,
tested to more than 5000 mating cycles. These
outstanding results are based on the following
design features: