![](http://datasheet.mmic.net.cn/130000/HDB-M4-040C236H_datasheet_4845368/HDB-M4-040C236H_3.png)
3
HDB3 MOTHER BOARD CONNECTOR HOW TO ORDER
HDB-M4 - 040
M
20
2
X
HDB-M4
Designates HDB3 Mother Board Connectors
Number of Contacts
Number of
Dimension
Contacts
A
B
C
040
40
1.375
0.800
1.075
080
80
2.075
1.500
1.775
120
120
1.775
2.200
2.475
160
160
3.475
2.900
3.175
Brush Wire Plating
M
0.000050 Au Min. thick over Nickel
C
0.000020 Au Min. thick over Nickel
Termination
Example part number:
Hardware
Type
Stickout
(Dim. K)
X
No Hardware
N/A
G
Polarization Key
0.250
Qty. 2
H
Polarization Key
0.500
Qty. 2
J
Polarization Key
0.750
Qty. 2
T
Guide Pin
0.250
Qty. 2
U
Guide Pin
0.500
Qty. 2
V
Guide Pin
0.750
Qty. 2
Type
Stickout
(Dim. E)
20
PCB, Straight, .016 Dia.
0.060
21
PCB, Straight, .016 Dia
0.090
22
PCB, Straight, .016 Dia
0.120
23
PCB, Straight, .016 Dia
0.150
24
PCB, Straight, .016 Dia
0.180
25
PCB, Straight, .016 Dia
0.210
Contact Terminition Finish
2
Gold plated in accordance with
MIL-G-45204, Type II, .00030 Min.
thick Gold over .000050 Min. thick
Nickel
5
Tin plated in accordance with
ASTM B545, .00010 Min. thick
Matte Tin over .00010 Min. thick
Nickel
6
Tin-Lead plated in accordance with
SAE-AMS-P-81728, .00010 Min.
thick Tin-Lead over .00010 Min.
thick Copper
HDB-M4-XXXXXXXX drawing is available on-line at
www.amphenol-aerospace.com. Then go to board level, then go to HDB3.
Type
Stickout
(Dim. E)
26
PCB, Straight, .016 Dia
0.240
27
PCB, Straight, .016 Dia
0.270
28
PCB, Straight, .016 Dia
0.300
29
PCB, Straight, .016 Dia
0.360
30
PCB, Straight, .016 Dia
0.420
HDB3 DAUGHTER BOARD CONNECTOR HOW TO ORDER
HDB-D4 - 040
M
02
2
X
HDB-D4
Designates HDB3 Daughter Board Connectors
Number of Contacts
Number of
Dimension
Contacts
A
B
C
040
40
1.375
0.800
1.075
080
80
2.075
1.500
1.775
120
120
1.775
2.200
2.475
160
160
3.475
2.900
3.175
Brush Wire Plating
M
0.000050 Au Min. thick over Nickel
C
0.000020 Au Min. thick over Nickel
Termination
Example part number:
Hardware
Type
X
No Hardware
P
Polarization Key
Qty. 2
L
Polarization Key
Qty. 2
Type
Stickout
(Dim. E)
00
PCB, Right Angle, .016 Dia.
0.060
01
PCB, Right Angle, .016 Dia.
0.090
02
PCB, Right Angle, .016 Dia.
0.120
03
PCB, Right Angle, .016 Dia.
0.150
04
PCB, Right Angle, .016 Dia.
0.180
05
PCB, Right Angle, .016 Dia.
0.210
06
PCB, Right Angle, .016 Dia.
0.300
HDB-D4-XXXXXXXX drawing is available on-line at
www.amphenol-aerospace.com. Then go to board level, then go to HDB3.
Contact Terminition Finish
2
Gold plated in accordance with
MIL-G-45204, Type II, .00030 Min.
thick Gold over .000050 Min. thick
Nickel
5
Tin plated in accordance with
ASTM B545, .00010 Min. thick
Matte Tin over .00010 Min. thick
Nickel
6
Tin-Lead plated in accordance with
SAE-AMS-P-81728, .00010 Min.
thick Tin-Lead over .00010 Min.
thick Copper