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參數資料
| 型號： | DD78M4R8N00-50-538.75 |
| 廠商： | POSITRONIC INDUSTRIES INC |
| 元件分類： | D-微型連接器 |
| 英文描述： | 78 CONTACT(S), MALE, D SUBMINIATURE CONNECTOR, SOLDER |
| 文件頁數： | 1/8頁 |
| 文件大?。?/td> | 534K |
| 代理商： | DD78M4R8N00-50-538.75 |
53
DIMENSIONS ARE IN INCHES [MILLIMETERS].
ALL DIMENSIONS ARE SUBJECT TO CHANGE.
DD
SERIES
D-Sub
Positronic Industries
connectpositronic.com
MILITARY QUALITY
FIXED AND REMOVABLE CONTACTS
HIGH DENSITY D-SUBMINIATURE
DENSI-D SERIES TECHNICAL CHARACTERISTICS
MATERIALS AND FINISHES:
Insulators:
Glass filled polyester per ASTM D5927, UL
94V-0, blue color.
Contacts:
Precision machined copper alloy.
Contact Plating:
Military performance - 0.000050 inch [1.27
microns] gold over nickel plate.
Industrial
performance - gold flash over nickel plate.
Other finishes available upon request.
Shells:
Steel with tin plate; zinc plate with chromate
seal, stainless steel passivated. Other
materials
and
finishes
available
upon
request.
Mounting Spacers:
Nylon; copper alloy or steel with zinc plate and
chromate seal or tin plate; phosphor bronze with
tin plate; stainless steel, passivated.
Push-On Fastener:
Phosphor bronze or beryllium copper with tin
plate.
Vibration Lock Systems: Slide lock and lock tabs, steel with nickel
plate.
Jackscrew Systems:
Brass or steel with zinc plate and chromate
seal or clear zinc plate or tin plate; stainless
steel, passivated.
Hoods:
Composite and plastic, UL 94V-0; brass or
steel with zinc plate and chromate seal.
Aluminum; aluminum with electroless nickel
plate. For aluminum hoods, zinc content is
1% maximum. Die cast zinc.
Low magnetic versions are available, contact Technical Sales.
MECHANICAL CHARACTERISTICS:
Removable Contacts:
Insert contact to rear face of insulator and
release from rear face of insulator. Size 22
contacts, male - 0.030 inch [0.76mm] mating
diameter. Female contacts - PosiBand closed
entry design, see page 1 for details.
Contact Retention
In Insulator:
9 lbs. [40 N].
Contact Terminations:
Closed barrel crimp, wire sizes 22 AWG
[0.3mm2] through 30 AWG [0.05mm2] per IEC
352-2.
Right Angle (90°) Printed Board Mount con-
tact terminations.
Shells:
Male shells may be dimpled for EMI/ESD
ground paths.
Polarization:
Trapezoidally shaped shells and polarized
jackscrews.
Mounting To
Jackscrews
and
riveted
fasteners
with
Angle Brackets:
0.120 inch [3.05mm] clearance hole, and
threaded riveted fasteners with 4-40 threads
and polyster lock inserts.
Mounting To
Rapid installation push-on fasteners and
Printed Board:
mounting posts.
Locking Systems:
Jackscrews and vibration locking systems.
Mechanical Operations:
1000 operations minimum per IEC 60512-5.
ELECTRICAL CHARACTERISTICS:
Contact Current Rating, Tested per UL 1977:
12 amperes, 2 contacts energized.
10 amperes, 6 contacts energized.
7.5 amperes, 26 contacts energized.
6.5 amperes, 65 contacts energized.
5.0 amperes, 104 contacts energized.
See temperature rise curves on page 2 for details.
Initial Contact Resistance: 0.005 ohms maximum.
Proof Voltage:
1000 V r.m.s.
Insulator Resistance:
5 G ohms.
Clearance and Creepage
Distance [minimum]:
0.042 inch [1.06mm].
Working Voltage:
300 V r.m.s.
CLIMATIC CHARACTERISTICS:
Temperature Range:
-55°C to +125°C.
Damp Heat, Steady State: 21 days.
THERMOCOUPLE CONTACTS:
Size 22 crimp contacts are available, see page 56 for details.
Printed circuit board mount contacts are available, please Consult Accessories
D-subminiature catalog for details.
Size 22 Signal and
Thermocouple Contacts,
Removable Crimp and
Printed Board Mount
PosiBand Closed Entry
MIL-DTL-24308 and SAE AS39029
UL Recognized
CSA Recognized
File #E49351
File #LR54219
Telecommunication
UL File #14098
Densi-D series connectors are military quality, high density
connectors
designed
for
use
in
sheltered,
mildly
corrosive
environments having a wide range of temperature, pressure and
humidity changes.
Applicable connectors are qualified to MIL-DTL-
24308 and SAE AS39029 (see page 82 for more information).
Densi-D series connectors utilize precision machined contacts with
closed barrel crimp terminations, solder cup terminations, straight and
right angle (90°) printed board mount.
All female contacts utilize
Positronic's unique PosiBand closed entry design, see page 1 for
details.
Six standard contact variants are offered in arrangements of 15, 26,
44, 62, 78 and 104 contacts. Densi-D series connectors are mateable
and compatible with other high density D-subminiature connectors
conforming to MIL-DTL-24308.
A wide variety of unique accessories are available.
P
O
S
IT
R
O
N I C I N D U
S
T
R
IE
S
p
er
EU
Dire
ctive 2002
/9
5/
EC
RoHS
Compliant
For RoHS options
see page 60.
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