Catalog 1308638 Dimensions are in inches and Dimensions are shown for USA: 1-800-522-6752 South America: 55-11-3611-1514
Revised 8-05 millimeters unless otherwise reference purposes only. Canada: 1-905-470-4425 Hong Kong: 852-2735-1628
specified. Values in brackets Specifications subject Mexico: 01-800-733-8926 Japan: 81-44-844-8013
www.tycoelectronics.com are metric equivalents. to change. C. America: 52-55-5-729-0425 UK: 44-141-810-8967
Rectangular Connectors
51
Rectangular
Connectors
2
High Density Standard Module (HDSM) Connectors
Features
nDesigned for surface
mounting on both daughter
board and mother board for
increased circuit density
nBasic design offers 38, 78,
120, 152, 200, 304, and 400
contact designs
nHigh reliability twist pin and
socket per MIL-DTL-83513
and MIL-DTL-55302
nConnector permits lateral
movement of daughter
board to accommodate
clamping of the heatsink
nPlated through-hole
mounting available
nAvailable with flying leads
nExtender card option
available
nTypical mating force for 304
contacts is 38 pounds
nDesigned to withstand vapor
phase soldering
nTwo rotatable (six position)
polarizing keys are provided
accommodating 36 possible
combinations
nJackscrew hardware
available; consult
Tyco Electronics
nDifferent modular inserts
may be specified to include
coax (Pixi/Con), fiber optic
or other special contacts
nInserts may be partially or
fully loaded and installed in
the connector shell in
various configurations
The MICRODOT HDSM
connector is designed for
4row .050 [1.27] pitch
density with a special low
force twist pin that meets
all requirements of MIL-
DTL-55302 and MIL-DTL-
83513. This high density
connector allows the use of
construction to double the
packaging density with
surface mount capability.
Performance Data Summary
Electrical
Contacts —Pin 24 AWG twist pin,
Socket #24 AWG, Wire range 24 AWG to
32 AWG solid and stranded.
Contact Resistance (voltage drop)—
25 millivolts max. at 3 amps, 25° ± 3° C.
Current Rating —3amps max. per
contact
Dielectric Withstanding Voltage —
Volts RMS 60 Hz at room ambient:
600 V for solder pots at sea level.
150 V for solder pots at 70,000 ft.
[21,336m]
500 V for wire terminations at sea level.
200 V for wire terminations at 70,000 ft.
Insulation Resistance —5,000
megohms min. at room ambient.
Magnetic Permeability —2mµ max.
Mechanical
Contact Spacing —.050 [1.27] centers
Contact Engagement &
Separation —5.0 oz max. [1.39N]
(eng.) 0.5 oz. min. [.14N] 3.5 oz. typ.
[.97N] (sep.) force.
Materials and Finishes
Contacts —Copper alloy plated with
.000050 [0.00127] gold over copper
flash per MIL-G-45204, Type II.
Metal Shell —
Insulator — Liquid Crystal Polymer
(LCP) per ASTM D5138 or
Polyphenylene Sulfide per
MIL-M-24519
Body Shell — Aluminum alloy plated
Nickel, electroless per MIL-C-26074.
Environmental
Temperature Range —
-67°F to 257°F [-55° C to +125° C].
Vibration —No discontinuity in
excess of 1 micro sec. when tested in
accordance with MIL-STD-1344,
Method 2005, test Condition IV.
Insulator Retention —Inserts will
withstand a 50 lb. per squareinch load
in either direction.
Shock —No discontinuity in excess of
1micro sec. when tested in accordance
with MIL-STD-1344, Method 2004, test
Condition E.
Durability —No mechanical or electri-
cal defects detrimental to the function of
the connectors after 500 cycles of mat-
ing and unmating. (Caution: Mating
force increases during durability cycling
may be noted).
Humidity —After exposure to humidi-
ty as specified by MIL-STD-1344,
Method 1002, Type II, IR shall be 1
megohm min. immediately following
step 7a of Method 1002 and 1000
megohms min. after 24 hours of condi-
tioning per Method 1002.
Salt Spray —Connectors shall meet
the performance requirements of contact
resistance, mating and unmating forces,
and contact retention after being subject-
ed to the 48-hour 5% solution salt spray
test per MIL-STD-1344, Method 1001,
Condition B.
Crimp Termination Tensile
Strength —*Unassembled contacts
with crimped stranded wire terminations.
Wires will not pull out of contacts when
the following axial loads are applied:
24 AWG, 5 lbs., 26 AWG, 4 lbs.,
28 AWG, 3 lbs.
Catalog 1308638 Dimensions are in inches and Dimensions are shown for USA: 1-800-522-6752 South America: 55-11-3611-1514
Revised 8-05 millimeters unless otherwise reference purposes only. Canada: 1-905-470-4425 Hong Kong: 852-2735-1628
specified. Values in brackets Specifications subject Mexico: 01-800-733-8926 Japan: 81-44-844-8013
www.tycoelectronics.com are metric equivalents. to change. C. America: 52-55-5-729-0425 UK: 44-141-810-8967
Rectangular Connectors
52
High Density Standard Module (HDSM) Connectors (Continued)
A
B
38 & 78 Position Plug
Keying Hardware
.360
[9.14]
.050
[1.27]
B
A
Typ. Typ.
.050
[1.27]
Typ.
.025
[0.64] .150
[3.81]
.050
[1.27]
120, 152 & 200 Position Plug
(38 & 78) (120, 152 & 200)
A
CRef. A
A
A1
Mtg. Nut/Polarizing Key (Customer Installed)
2 Supplied (Packed Loose)
End Cav. A1 Near Side
End Cav. D1 Far Side
.290
[7.34]
.165
[4.19]
.505
[12.83]
.350
[8.89]
Marked As Shown
}
Min.
Ref.
2-56 UNC-2B Thd.
x.125 [3.17] DP
.290
[7.37]Ref.
.350
[8.89]Min.
Insulator
Pin Contact
Housing
Lead Organizer
28 AWG Wire
Solder Dipped
Ø.010 [0.25]
(All Leads)
Section A-A
C
C1
D1
C10 (20)
D9 (19)
A9 (19)
B10 (20) A1B1
C
C16 (20) (26)
C30 (38) (50)
A30 (38) (50)
B30 (38) (50)
D30 (38) (50) D1
A1
B1
C1
C15 (19) (25)
D15 (19) (25)
A15 (19) (25)
B15 (19) (25)
D16 (20) (26)
A16 (20) (26)
B16 (20) (26)
.050
[.127] .050
[.127]
.025
[0.64] D.200
[5.08]
.300
[7.62] .490
[12.50]Max.
Socket Side
Pin Side
Flat Screw
2-56 UNC-2A
Thd.
Flat Screw
2-56 UNC-2A
Thd.
Receptacle
Polarizing Key
2-56 UNC-2B
Thd.
Plug
Polarizing Key
2-56 UNC-2B
Thd.
A
B
C
D
.250
[6.35]
.050
[1.27]
2 Plcs.
.025
[0.64]
.050
[1.27]
Typ.
Typ.
B
A.050
[1.27].150
[3.81]
.360
[9.14]
304 & 400 Position Plug
A***
’A76’ (304) ’A100’ (400) Near Side Marking
’A1’ Near Side Marking
’D1’ Far Side Marking
’D76’ (304) ’D100’ (400) Far Side Marking
Mtg. Nut/Polarizing Key
(Customer To Install)
2Supplied (Packed Loose) A
A
A1
.050
[1.27]Ref. DRef. Standoff, 2-56 UNC-2B
Thd. x .125 [3.17] Min. Thd.
.165
[4.19]
.290
[7.34]
.505
[12.83]
2-56 UNC-2B Thd.
x.125 [3.17] DP
.290
[7.37]
.350
[8.89]
Min.
Ref.
.060
[1.52] .062
[1.58]
Thick
Pin Contact
Insulator
Housing
Lead
Organizer
28 AWG Wire
Solder Dipped
fl.010 [0.25]
(All Leads)
Section A-A
B76(100)
D76(100)
C75(99)
D75(99)
C76(100)
D76(100)
C75(99)
D75(99)
.100
[2.54]
.025
[0.64]
.050
[1.27] .075
[1.91]
Typ. Typ.
Typ.
Typ.
B59(77)
A59(77)
B58(76)
A58(76)
B56(74)
A56(74)
B57(75)
A57(75)
D58(76)
C58(76)
D59(77)
C59(77)
D57(75)
C57(75)
D56(74)
C56(74)
A40(52)
B39(51)
A39(51)
B40(52)
D40(52)
C39(51)
D39(51)
C40(52)
DTyp.
.050
[1.27]
C(2 Plcs.)
A37(49)
B37(49)
A38(50)
B38(50)
D37(49)
C37(49)
D38(50)
C38(50)
B21(27)
A21(27)
B20(26)
A20(26)
B18(24)
A18(24)
B19(25)
A19(25)
D20(26)
C20(26)
D21(27)
C21(27)
D19(25)
C19(25)
D18(24)
C18(24)
B1
A2
B2
A1
A4
B3
A3
B4
D4
C3
D3
C4C1
D2
C2
D1
C
L.250
[6.35]
.125
[3.18]Ref.
.460
[11.68] .590
[14.99]
.220
[5.59]
.100
[2.54]
.340
[8.64] Max.
Size 304 & 400 (Terminal Ident In Parentheses Is For Size 400)
2 Plcs.
Catalog 1308638 Dimensions are in inches and Dimensions are shown for USA: 1-800-522-6752 South America: 55-11-3611-1514
Revised 8-05 millimeters unless otherwise reference purposes only. Canada: 1-905-470-4425 Hong Kong: 852-2735-1628
specified. Values in brackets Specifications subject Mexico: 01-800-733-8926 Japan: 81-44-844-8013
www.tycoelectronics.com are metric equivalents. to change. C. America: 52-55-5-729-0425 UK: 44-141-810-8967
Rectangular Connectors
53
Rectangular
Connectors
2
High Density Standard Module (HDSM) Connectors (Continued)
.220
[5.59]
I.D. Of Bushing
Ø .062–.064
[1.57–1.61]
.195
[4.95]
C
D9(19)
C10(20)
A9(19)
B10(20)
C1D1
C1
B1
A1B1
A1
(38 & 78)
.226
[5.74]Typ. CD
(120, 152 & 200)
Flat Screw, 2 Supplied
2-56 UNC-2A Thd.
(Packed Loose)
Ø .132
[3.35]
ETorlon
Bushing
(4 Rqd)
Section B-B
-A-
.025
[0.64] .050
[1.27]
CRef.
DRef.
A
A
B
BA9(38)A19(76)A30(120)
A38(152)A50(200) Near Side Marking
D9(38)D19(76)D30(120)
D38(152)D50(200) Far Side Marking
.645
[16.38]
A1 Near Side Marking
D1 Far Side Marking
.160
[4.06]
.370
[9.40]
.545
[13.84]
.695
[17.65] .348
[8.84]
.050
[1.27]
Typ. At .545 [13.84] Dim.
.188
±.015
[4.78
± 0.38
]
Full Radius Typ.
Ø .008 M [.2.03] A M
.050
[1.27]
HRef. Dim.
GGage Dim.
FFree State
32 AWG,
Solder Dipped
Radius
Typ.
Typ.
C
LOf Radius
Of Leads
“Break Away”
Notch
(All Leads)
Housing
Insulator
Socket
Contact
Section A-A
B
.025
[0.64]
C
Typ.
.195
[4.95]Ref.
Size 38 & 78
B
A
38 & 78 Position Receptacle
A
B
.050
[1.27]
.025
[0.64]
Typ.
Typ.
.050
[1.27]
120, 152 & 200 Position Receptacle
.050
[1.27]
.150
[3.81]
.360
[9.14]
Polarizing Key, 2 Supplied
2-56 UNC-2B Thd.
(Packed Loose)
.050
[1.27] .195
[4.95]
.025
[0.64]Typ.
D
CTyp. Ref.
B
Size 120, 152 & 200
Recommended PCB Footprint Pattern
D1
Of
Mtg. Hole
C
L
BB/2(2 Plcs.)
D1
C1
B1
A1
Flat Head Screw (2 Plcs.)
2-56 UNC-2A Thd.
(Packed Loose, Customer To Install)
.226
[5.74]
.360
[9.14]
C(2 Plcs.)
.035
[0.89]
.018
[0.46] DTyp.
.195
[4.95]
2 Plcs.
1/2 B (2 Plcs.)
B
C(2 Plcs.)
Size 304 & 400
Recommended PCB Footprint Pattern
.025
[0.64]Typ.
Ø .008 M [.2.03] A M
(Typ.) At .545 [13.84] Dim. .160
[4.06]
.250
[6.35] Full
Radius
Typ. .050
[1.27]
D(4 Plcs.)
Typ.
Typ.
B
B
A
A
.370
[9.40]
.545
[13.84]
.645
[16.38] .695
[17.65]
A1 Near Side Marking
D1 Far Side Marking
A76(304) A100(400) Near Side Marking
D76(304) D100(400) Far Side Marking
Polarizing Key (2 Plcs.)
(Packed Loose, Customer To Install)
B
A
.250
[6.35]
.050
[1.27]
2 Plcs.
.025
[0.64] .050
[1.27]
Typ. Typ.
.150
[3.81]
.050
[1.27]
.348
[8.84]
.050
[1.27]
.188
±.015
[4.78
± 0.38
]
.050
[1.27]
HRef. Dim.
GGage Dim.
FFree State 32 AWG,
Solder Dipped
Radius
Typ.
Typ.
C
LOf Radius
Of Leads
“Break Away”
Notch
(All Leads)
Housing
Insulator
Socket
Contact
Section A-A
Of
Mtg. Hole
C
L
Catalog 1308638 Dimensions are in inches and Dimensions are shown for USA: 1-800-522-6752 South America: 55-11-3611-1514
Revised 8-05 millimeters unless otherwise reference purposes only. Canada: 1-905-470-4425 Hong Kong: 852-2735-1628
specified. Values in brackets Specifications subject Mexico: 01-800-733-8926 Japan: 81-44-844-8013
www.tycoelectronics.com are metric equivalents. to change. C. America: 52-55-5-729-0425 UK: 44-141-810-8967
Rectangular Connectors
54
High Density Standard Module (HDSM) Connectors (Continued)
No. of Cavities A Dim. B Dim. C Dim. D Dim.
Single Bay
381.000 .840 .450 —
25.40 21.34 11.43
781.500 1.340 .950 —
38.10 34.04 24.13
120 2.050 1.890 1.500 .725
52.07 48.01 38.10 18.42
152 2.450 2.290 1.900 .925
62.23 58.17 48.26 23.50
200 3.050 2.890 2.500 1.225
77.47 73.41 63.50 31.12
Double Bay
304 4.600 4.440 1.900 .925
116.84 112.78 48.26 23.50
400 5.800 5.640 2.500 1.225
147.32 143.26 63.50 31.12
Dash No. Gap Between FDim. G Dim. HDim.
Bushing "E" (Ref.)
1.100 .120 .180 .330
2.54 3.05 4.57 8.38
2.093 .060 .150 .330
2.36 1.52 3.81 8.38
3.118 .235 .260 .483
2.99 5.97 6.60 12.27
4.145 .120 .180 .330
3.68 3.05 4.57 8.38
How To Specify
Table I
L 4 L 4 0.5
Wire Length
Wire Type
*A — Type E, 7 strand *D — Type ET, 19 strand G — 19 strand per MIL-W-22759/11
*B — Type ET, 7 strand F— 7 strand per MIL-W-22759/11 26 AWG, 24 AWG
*C — Type E, 19 strand (#28 AWG only) L — Copper, solid
Q— Stranded per MIL-W-22759/33
*Per MIL-W-16878
HDSM 1 152
Connector Series
Contact Location
1—Full complement of contacts
2 — Contacts in outside rowonly
3 — Contacts in inside rowonly
4—Other than above or special housing
Layout
38, 78, 120, 152, 200, 304&400
Contact Type
L — LowForce Pin
SL — LowForce Socket
Wire Size
4—24 AWG 5—25 AWG 6—26 AWG 8—28 AWG 0—30AWG
X— Special Wire and/or other than above
S— Solder pot
Z— Coke Bottle Termination (Receptacle only, see Table I)
ZA — 4RowWire Termination (Plug only)
ZB—8RowWire Termination (Plug only)
Wire Color/Finish
1 — All white 4 — Gold plated 7 — Color coded per MIL-STD-681,
2 — All yellow5 — Tin dipped gold plated System1
3 — All gray 6 — Bare (unfinished) 8 — Special color code
9 — Ten basic color repeating on
each row(A, B, C, D)
(starting with black)
