IO4-168P datasheet(7/44 Pages) AMPHENOL

7 / 44 page

MB, DB, PC Connectors

Military Part Number Ordering Procedure

Example part number M55302/166A10X1 is shown as follows:

M55302 /166

Body Type/

Contact Style

Number of Rows

Number of Contacts per Row

Tail Length

Tail Finish

Body Type/Contact Style

/166 designates MB-P (Mother Board, Printed Circuit Board

Termination)

/167 designates MB-W (Mother Board, Wire-wrap Contacts)

/168 designates PC (Printed Circuit, 90° Printed Circuit Board

Termination)

/170 designates DB (Daughter Board, 90° Printed Circuit Board

Termination)

Number of Rows

A –

2 Rows

B – 3 Rows

C –

4 Rows

Number of Contacts per Row

Contact counts per row range from 10 to 100

(Only 2 digits permitted in this space; for 100 contacts per row, use 00)

Tail Length

MB-P

(PCB Termination)*

MB-W**

(Wire-wrap)

W – .222 ±.025

X – .300 ±.025

Y – .145 ±.025

Z – .113 ±.025

Y – .700 ±.025

Z – .542 ±.025

DB*

PC*

X – .300 ±.025

Y – .150 ±.025

Z – .120 ±.025

Y – .150

Z – .095

* Reference “J” Dimension on all connector drawings in this catalog.

** For MB-W only: Reference “H” Dimension on connector drawing on page 8.

Tail Finish

1 Tin lead per MIL-P-81728, 50 to 70% tin, .0001 min. thick

over copper

2 Gold per MIL-G-45204, type II, grade C, class 00

(01 for MB-W) over nickel per QQ-N-290

IO Connectors

Military Part Number Ordering Procedure

Example part number M55302/169A101 is shown as follows:

M55302

/169

Body Type

Number of Rows

Number of Contacts per Row

Contact Type/Finish

Body Type

/169 designates IO (Input/Output)

(Contact type/finish is last digit of IO part number - see list

of options below)

Number of Rows

A –

2 Rows

B – 3 Rows

C –

4 Rows

Number of Contacts per Row

Contact counts per row range from 10 to 100

(Only 2 digits permitted in this space; for 100 contacts per row, use 00)

Contact Type/Finish

1 Crimp contact – Tin lead per MIL-P-81728, 50 to 70% tin,

.0001 min. thick over copper

2 Crimp contact – Gold per MIL-G-45204, type II, grade C,

class 1 over copper

3 Connectors supplied less contacts

4 PCB contacts installed with .145 ±.025 stickout – Tin lead

per MIL-P-81728, 50 to 70% tin, .0001 min. thick over

copper (Reference “J” Dimension on connector drawing on

page 16).

To Order

IO Contacts

(For use with connectors less contacts)

M55302/171-1

suffix designates crimp well finish

Crimp well finish

1 Crimp contact – Tin lead per MIL-P-81728, 50 to 70% tin,

.0001 min. thick over copper

2 Crimp contact – Gold per MIL-G-45204, type II, grade C

class 1 over copper

To order Accessories, see page 5.

Low Mating Force Rectangular Connectors

how to order (military types)

+.035

–.025

+.035

–.025

phenol

/ 2002 / 95 /

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