DESCRIPTION
APPLICATIONS
Band backshells were originally
developed for military applications.
They provide facility by using due to
the band which assures very high
quality level (tightness, wire
retention force, EMI/RFI protection...)
The HE 308-35 is usable with all
JT/ LJT connectors which accept rear
accessories (MIL-DTL-38999 Series I&II).
The TV-35 is usable with all
TV connectors which accept rear
accessories (MIL-DTL-38999 Series III).
•These backshells are suited to harsh
environment / military / aeronautic
use.
MAIN CHARACTERISTICS
•Mass continuity assured by the band between cable braid and backshell
•Very high level of cable retention assured by the band on the braid
•Easy cabling process
•Very good sealed when terminated with a straight or right angle heat-shrink
molded piece
•Provides an high performance EMI/RFI protection
•Only one tool is needed to set up the band on the backshell
•Available with different cabling chamber lengths to meet your requirement
E 118/A
Heavy duty
EMI - RFI
band backshell
Heavy duty
EMI - RFI
band backshell
TV-35
Band Backshell
HE 308-35
for MIL.DTL-38999 I & II connectors
for MIL.DTL-38999 III connectors
HE308-35 VA 29/03/01 14:55 Page 2
Application tools & process
CHARACTERISTICS
1. Prepare Cable Braid for termination process (Figure 1).
2. Push Braid forward over Adapter Retention Lip to the
Adapter Incline Point (or .4” [10.2mm] minimum braid
length). Milk Braid as required to remove slack and insure
a snug fit around the shield termination area (Figure 2).
3. Prepare the Band in the following manner:
IMPORTANT:
Due to Connector/ Adapter circumference, it may be ne-
cessary to prepare the Band around the Cable or Retention
Area.
A. Roll Band through the Buckle Slot twice. (Bands must be
double-coiled.)
B. Pull on Band until Mark ( ) is within approximately .250
inch (6.4mm) of Buckle Slot (Figure 3). The Band may be
tightened further if desired.
NOTE: Prepared Band should have ( ) Mark visible approximately where
shown in Figure 3.
SHIELD TERMINATION CLAMPING PROCESS:
(Figures 4 thru 8):
NOTE: To free Tool Handles, move Holding Clips to center of Tool.
4. Squeeze Gripper Release Lever and insert Band into the front
end opening of the T ool. (NOTE: Circular portion of looped
band must always face downward.)
5. Aligning the Band and Tool with the Shield Termination Area,
squeeze Black Pull-Up Handle repeatedly using short strokes
until it locks against Tool Body. (This indicates the Band is
compressed to the Tool Precalibrated Tension).
NOTE: If alignment of band and shield is unsatisfactory , tension on band
can be relaxed by pushing on slotted release lever on top of tool. Make
adjustments as necessary and again squeeze black pull-up handle.
6. Complete the Clamping Process by squeezing the Gray Cut-
Off Handle.
7. Remove excess Band from Tool.
8. Inspect Shield Termination.
ADVISE: Coupling will be ensured if thread locking “Lactite 243” is used
on connector.
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HE308-35 VA 29/03/01 14:55 Page 3
DIMENSIONAL CHARACTERISTICS
Size A diam. E Max. Cabling Z rear side diameter S diam. Diam. D1 Diam. D2 Accessory
Max. (mm)
chamber length coupling
(mm) (1) F +/-0.4 Coding 1/32 Dimension Min./Max. +/-01 +/-01 (N/m)
(mm) of Inch min. (mm) (mm) (mm)
09 21.4 36 10 08 6.3 9.4/9.5 14 11.4 8+/-0,4
11 24.3 36 10 12 9.4 12.6/12.7 17.1 14.5 8+/-0,4
13 27.4 36 10 12 9.4 12.6/12.7 17.1 14.5 11+/-0,5
36 or 56 10 or 30 16 12.6 15.7/15.9 20.3 17.7
15 31.8 36 10 14 11 14.1/14.3 18.7 16.1 11+/-0,5
36 or 56 10 or 30 20 15.8 18.9/19.1 23.5 20.9
17 36 10 16 12.6 15.7/15.9 20.3 17.7
35 51 25 12 9.4 12.6/12.7 17.1 14.5 14+/-0,5
36 or 56 10 or 30 24 19 22/22.2 26.7 23.1
19 38.1 36 10 16 12.6 15.7/15.9 20.3 17.7 14+/-0,5
36 or 56 10 or 30 24 19 22/22.2 26.7 23.1
21 41.2 36 or 46 10 20 15.8 18.9/19.1 23.5 20.9
36 or 56 20 14 11 14.1/14.3 18.7 16.1 17+/-0,8
10 or 30 28 22.1 25.2/25.4 29.8 26.2
23 44.3 36 10 24 19 22/22.2 26.7 23.1 17+/-0,8
36 or 56 10 or 30 32 25.3 28.4/28.6 33 29.4
25 47.2 36 10 28 22.1 25.2/25.4 29.8 26.2 20+/-1
36 or 56 10 or 30 36 28.6 31.5/31.8 36.2 32.6
Chart I
Size C diam. C1 diam. Thread Thread Number
+0.1/-0 Max. Series I&II Series III of
(mm) (mm) UNEF Iso Metric serrations
09 7.8 9.83 0.4375-28 M12 x 1.0 - 6H 12
11 10.8 12.81 0.5625-24 M15 x 1.0 - 6H 16
13 13.1 15.98 0.6875-24 M18 x 1.0 - 6H 20
15 16.3 18.88 0.8125-20 M22 x 1.0 - 6H 24
17 19.5 22.03 0.9375-20 M25 x 1.0 - 6H 28
19 21.7 25.02 1.0625-18 M28 x 1.0 - 6H 32
21 24.9 28.20 1.1875-18 M31 x 1.0 - 6H 36
23 28.1 31.37 1.3125-18 M34 x 1.0 - 6H 40
25 31.2 34.55 1.4375-18 M37 x 1.0 - 6H 44
(1): depends on the chamber length
Chart II
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HE308-35 VA 29/03/01 14:55 Page 4
