MIL-DTL-24308 Filter Connectors
TD1*
ITT developed a line of filter connectors to meet the industry’s demand for improved control of
Radio Frequency and Electro-magnetic Interference (RFI/EMI). These TD1* filter connectors,
have been designed to combine the functions of a standard electrical connector and feed-thru
filters into one compact package. In addition to offering greater design flexibility and system
reliability, they are designed for applications where space and weight are prime considerations.
These connectors are intermateable with all standard D-subminiature connectors. They are also
intermateable with MIL-C-24308 types and meet applicable portions of that specification.
All TD1* filter contact assemblies are tested 100% during in-process and final inspection, for
capacitance, insulation resistance and dielectric withstanding voltage. Attenuation is checked as
required for each type of filter to assure performance to guaranteed levels.
Performance and Material Specifications
ELECTRICAL DATA
Available Filter
Catalog Indication - letter
Voltage Rating (working)
Current Rating (amp DC)
Insulation Resistance, 2 min. electrification
time max. at 25˚C, and 100 VDC
DWV, sea level, with 500 microamps max.
charge/discharge
Capacitance at 1 KHz, 0.1 V rms picofarads
Freq. MHz
Attenuation per MIL-STD-220
@ 25˚C with no applied
voltage or current.
0.1
1
2
10
100
500 to 1,000
Filter Type
2 min.
15 min.
20 min.
35 min.
60 min.
65 min.
Pi
50,000
minimum
7200
12,000
3000
5,000
780
1,300
Low Freq.
L
100 VDC
7.5
5000
megohms
minimum
300 VDC
7.5
10,000
megohms
minimum
500 VDC
Mid Freq.
M
Std Freq.
T
200 VDC
7.5
10,000
megohms
minimum
500 VDC
7.5
10,000
megohms
minimum
500 VDC
Shell
High Freq.
H
MATERIALS AND FINISHES
Description
Contacts
Material
Copper alloy
Finish
Gold plate per
MIL-G-45204
Type 1, Class 1
Aluminum alloy 6061-T6 Electroless nickel per
MIL-C-26074
per QQ-A-225/8 or
QQ-A-200/8
Polyphenylene Sulfide/ None
Epoxy
Epoxy
Beryllium Copper
None
Gold plate
Insulator: Socket
Pin
Ground Spring
Attenuation (dB)
-
2 min.
5 min.
15 min.
55 min.
60 min.
Pi
-
-
2 min.
9 min.
50 min.
55 min.
Pi
2 min.
30 min.
50 min.
Pi
-
-
How to Order
TD
1
E
9
L
P
H
-
C
FILTER SERIES PREFIX
ONE (1) PIECE SHELL
SHELL SIZE
CONTACT ARRANGEMENTS
FILTER TYPE
CONTACT TYPE
CONTACT TERMINATION
MODIFIER
FILTER TYPE
L - Low frequency
M - Mid-range frequency
T - Standard frequency
H - High frequency
CONTACT TYPE
P - Pin contacts
S - Socket contacts
PRINTED CIRCUIT CONTACTS
Consult factory. Both 90˚ and straight types are
available.
CONTACT TERMINATION
See page 7
Lack of termination indicator signifies solder cup.
MODIFIER
C - Clinch nut
Dimensions shown in inch (mm)
Specifications and dimensions subject to change
FILTER SERIES PREFIX
TD - Miniature, rectangular, solder termination
SHELL SIZE (one piece shell)
E, A, B, C, D
CONTACT ARRANGEMENTS
See page 7
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6
MIL-DTL-24308 Filter Connectors
Typical Filter Performance
Med. Freq.
90
80
70
60
50
40
30
20
10
0
1.0
10
100
1000
Low Freq.
TD1*
Std. Freq.
Std. Freq.
Contact Arrangements
Face View Pin Insert
1
2
3
4
5
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
9
10 11
12
13
6
7
8
9
9
10 11
12 13 14 15
14 15 16 17
18 19 20
21
22
23 24
25
Shell Size
Contact Arrangement
Contact Size
E
9
#20
A
15
#20
B
25
#20
1
1
2
3
4
5
6
7
8
9
10
11 12
13
14 15
16 17 18 19
18
2
3
4
5
6
7
8
9
10
11 12 13
14 15 16 17
35
20
21
22
23 24 25 26
27 28 29 30 31
32 33 34 35 36 37
34
35 36 37
38 39
40 41
42 43 44
45 46
47 48 49
50
Shell Size
Contact Arrangement\
Contact Size
C
37
#20
D
50
#20
Contacts
Straight Printed Circuit
300 + .028
_
(7.62 + 0.71)
_
(.125 (3.18)
PC BOARD)
Modifier
H: .040 (1.02) Dia. terminals and accommodates up to
1/8 Max. thick P.C. boards.
M: .030 (.76) Dia. terminals and accommodates up to
1/8 Max. thick P.C. boards.
Right Angle Printed Circuit
.125 + .010
_
(3.18 + .25)
_
Modifier
.125 + .010
_
(3.18 + .25)
_
P: .030 (.76) Dia. terminals and accommodates P.C. boards
up to 3/32 Max. Thickness.
.112+ .015
_
(2.84 + .38)
_
.715 + .010
_
(18.16 + .25)
_
.112 + .015
_
(2.84 + .38)
_
.112 + .015
_
(2.84 + .38)
_
.715 + .010
_
(18.16 + .25)
_
FOOT PRINT FROM FRONT
OF MOUNTING FLANGE
Dimensions shown in inch (mm)
Specifications and dimensions subject to change
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7
MIL-DTL-24308 Filter Connectors
Standard Shell Dimensions
1.040 (26.42)
MAX.
J
10˚TYP.
.065 (1.65)
+ .005 (0.13)
_
A
H
B
TD1*
F
G
D
E
TWO HOLES
120 + .005
_
(3.05 + 0.13)DIA.
_
Rear View
A
+ .015 (0.38)
_
1.213 (30.81)
1.213 (30.81)
1.541 (39.14)
1.541 (39.14)
2.087 (53.01)
2.087 (53.01)
2.729 (69.32)
2.729 (69.32)
2.635 (66.93)
2.635 (66.93)
B
+ .010 (0.25)
_
.738 (18.75)
.642 (16.31)
1.066 (27.08)
.970 (24.64)
1.606 (40.79)
1.510 (38.35)
2.254 (57.25)
2.158 (54.81)
2.151 (54.64)
2.064 (52.43)
C
+ .005 (0.13)
_
.984 (24.99)
.984 (24.99)
1.312 (33.32)
1.312 (33.32)
1.852 (47.04)
1.852 (47.04)
2.500 (63.50)
2.500 (63.50)
2.406 (61.11)
2.406 (61.11)
ALL CONTACTS SKIVED APPROX.
AS SHOWN (.042[1.07) MIN SOLDER POT I.D.)
C
Front View
Shell Size
9P
9S
15P
15S
25P
25S
37P
37S
50P
50S
D
+ .010 (0.25)
_
.400 (10.16)
.310 (7.87)
.400 (10.16)
.310 (7.87)
.400 (10.16)
.310 (7.87)
.400 (10.16)
.310 (7.87)
.512 (13.00)
.422 (10.72)
E
+ .005 (0.13)
_
.502 (12.75)
.502 (12.75)
.502 (12.75)
.502 (12.75)
.502 (12.75)
.502 (12.75)
.502 (12.75)
.502 (12.75)
.612 (15.54)
.612 (15.54)
F
+ .010 (0.25)
_
.792 (20.12)
.792 (20.12)
1.116 (28.35)
1.116 (28.35)
1.664 (42.27)
1.664 (42.27)
2.316 (58.83)
2.316 (58.83)
2.198 (55.83)
2.198 (55.83)
G
+ .010 (0.25)
_
.469 (11.91)
.469 (11.91)
.469 (11.91)
.469 (11.91)
.469 (11.91)
.469 (11.91)
.469 (11.91)
.469 (11.91)
.576 (14.63)
.576 (14.63)
H
+ .010 (0.25)
_
.236 (5.99)
.243 (6.17)
.236 (5.99)
.243 (6.17)
.231 (5.87)
.243 (6.17)
.231 (5.87)
.243 (6.17)
.231 (5.87)
.243 (6.17)
J
+ .010 (0.25)
_
.841 (21.36)
.852 (21.64)
.841 (21.36)
.852 (21.64)
.841 (21.36)
.852 (21.64)
.841 (21.36)
.852 (21.64)
.841 (21.36)
.852 (21.64)
Mounting Panel Cutout Dimensions
.032 (0.81)
RADIUS MAX. TYP.
PANEL
.120 + .002
_
(3.04 + 0.05)
_
BOTH SIDES
A
10˚
(TYP.)
J RADIUS
4 PLACES
FULL
RADIUS
F
E
Rear Mounting
C
Standard Cutout
.120 + .002
_
(3.04 + 0.05)
_
DIAMETER
PANEL
C
Front Mounting
Optional Cutout
for Rear Mounting
Connector
TD1E
TD1A
TD1B
TD1C
TD1D
Mounting
Method
Front Mounting
Rear Mounting
Front Mounting
Rear Mounting
Front Mounting
Rear Mounting
Front Mounting
Rear Mounting
Front Mounting
Rear Mounting
A
+ .005 (0.13)
_
.833 (21.16)
.806 (20.47)
1.161 (29.49)
1.134 (28.80)
1.700 (43.18)
1.674 (42.52)
2.349 (59.66)
2.326 (59.08)
2.254 (57.25)
2.218 (56.34)
C
+ .005 (0.13)
_
.984 (24.99)
.984 (24.99)
1.312 (33.32)
1.312 (33.32)
1.852 (47.04)
1.852 (47.04)
2.500 (63.50)
2.500 (63.50)
2.406 (61.11)
2.406 (61.11)
E
+ .005 (0.13)
_
.485 (12.32)
.449 (11.40)
.485 (12.32)
.449 (11.40)
.485 (12.32)
.449 (11.40)
.485 (12.32)
.449 (11.40)
.593 (15.06)
.555 (14.09)
F
+ .005 (0.13)
_
.243 (6.17)
.225 (5.72)
.243 (6.17)
.225 (5.72)
.243 (6.17)
.225 (5.72)
.243 (6.17)
.225 (5.72)
.297 (7.54)
.278 (7.06)
J
+ .005 (0.13)
_
.065 (1.65)
.132 (3.35)
.065 (1.65)
.132 (3.35)
.065 (1.65)
.132 (3.35)
.065 (1.65)
.132 (3.35)
.065 (1.65)
.132 (3.35)
Dimensions shown in inch (mm)
Specifications and dimensions subject to change
www.ittcannon.com
8
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