JB3 SERIES CONNECTORS
General Purpose Waterproof, Miniature Circular Connectors
• • • • • • • • • • • • • •
The JB3 Series is a waterproof circular connector with solder
contacts for excellent resistance to harsh environments. Uses
include FA equipment and outdoor electronic devices.
GENERAL SPECIFICATIONS
Number of Contacts
Current Rating
Rated Voltage
Dielectric Withstanding
Voltage
Operating Temperature
Connection
3, 4, 8
For 3 and 4 contact: 10 Amps per contact
For 8 contact: 5 Amps per contact
AC500V, DC700V
For 3 contact: 2,000 VAC r.m.s. (for one minute)
For 4 and 8 contact: 1,500 VAC r.m.s.
(for one minute)
-25°C to +85°C
Solder (Condition: 350°
±
10°C, 3 seconds
±1
second)
100 times
FEATURES
Insertion/Removal Life
• Jam nut receptacle allows easy
panel mounting
• Front insulator has synthetic rubber for
waterproofing
• Cable plug is waterproof when assembled
• Solder contacts
Connector Profile (Ref.)
MATERIALS AND FINISHES
Components
Shell
Front Insulator
Rear Insulator
Contact
Jam Nut
Plate Washer
Internal Tooth
Washer
O-Ring
Barrel
Coupling Nut
Spacer
Hood
Adapter
Receptacle
Zinc alloy (Nickel plating)
Synthetic rubber
Synthetic rubber
Copper alloy (Gold plating)
Copper alloy (Nickel plating)
Copper alloy (Nickel plating)
Copper alloy (Nickel plating)
Synthetic rubber
—
—
—
—
—
Plug
—
Synthetic resin
Synthetic resin
Copper alloy (Gold plating)
—
—
—
Synthetic rubber
Zinc alloy (Chrome plating)
Copper alloy (Nickel
plating)
Synthetic resin
Synthetic resin
Synthetic resin
26
(1.024)
ORDERING INFORMATION
21
(.827)
JB3
*
T
*
*
*
1
19
(.749)
21
(.827)
Series
Shell Style
E – Straight Plug
(without endbell)
C – Jam Nut Receptacle
Connector Size
No. of Contacts
03 – 3
04 – 4
08 – 8
Contact Type
M – Pin, F – Socket
Contact Size
G – #12, K – #20
Modification
Dimensions and specifications subject to change without notice.
Dimensions in mm (inches).
86
JB3 SERIES CONNECTORS
General Purpose Waterproof, Miniature Circular Connectors
Arrangement
3 Contacts
4 Contacts
8 Contacts
Contact Arrangement
(View from Pin Insert
Mating Side)
Size x No. of Contact
Current Rating
Rated Voltage
D.W.V. (for one minute)
#12 x 3
10 Amps
500 VAC rms, 700 VDC
2,000 VAC rms
#12 x 4
10 Amps
500 VAC rms, 700 VDC
1,500 VAC rms (for one minute)
#20 x 8
5 Amps
500 VAC rms, 700 VDC
1,500 VAC rms (for one minute)
RECEPTACLE DUST CAP
(Fits All Jam Nut Receptacles)
M 19 x 1 (.039)
22 (.866)
8 (.315)
±
0.5 (.020)
±
0.5 (.020)
APPLICABLE CABLES
Receptacle
No. of
contacts
3
4
8
Cross-sectional area
of core wire of
applicable cable
Less than 3.5mm
2
Less than 2mm
2
Less than 0.75mm
2
Solder pot diameter
of receptacle
ø 2.9 (.114)
ø 1.9 (.075)
ø 1.2 (.047)
Plug
No. of
contacts
3
4
8
Specs of
applicable cables
Finished outside
diameter
VVR (TDS) 3 x 2.0
ø 11.25
±
0.25 (.443
±
.010)
KEV-AL 2P x 1/0.65A
ø 8
±
0.2 (.315
±
.008)
KPCV-ALD 3P x ø 0.65A ø 10
±
0.2 (.394
±
.008)
Dimensions in mm (inches).
87
JB3 SERIES CONNECTORS
General Purpose Waterproof, Miniature Circular Connectors
JAM NUT RECEPTACLE
21 (.827)
±
0.8 (.031)
2 (.079)
±
0.3 (.012)
27.6 (1.087)
±
0.8 (.031)
13 (.512)
±
0.4 (.016)
19 (.748)
±
0.8 (.031)
3 (.118)
±
0.2 (.008)
24 (.945)
±
0.2 (.008)
PANEL CUTOUT
(Panel Thickness: 0.5 ~ 2.5)
21 (.872) DIA.
+ 0.1 (.004)
0
19.65 (.774)
STRAIGHT PLUG
M 16.5
P 0.75 (.030)
+ 0.05 (.002)
0
(26 (1.024) DIA.)
15.2 (.598)
0
0.5 (.020)
19 (.748)
±
0.3 (.012)
24 (.945)
±
0.2 (.008)
(21 (.827))
Dimensions in mm (inches).
88
(19.6 (.772))
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