7
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Audio Transformers
A u d i o Tr a n s f o r m e r s
Mil-T-27E
::
D e s c r i p t i o n
Triad high reliability audio transformers provide the durability and precision required in today’s
demanding designs. These transformers are available for a wide variety of applications. The line
of Red Spec audio transformers is designed and constructed to meet the rigid requirements of
MIL-T-27E. These transformers feature an epoxy molded case, gold plated leads and exceptional
operation from 300 Hz to 100 kHz.
Red Spec
(MiL-T-27E)
::
S p e c i f i c a t i o n s
Frequency Response Ranges:
300 Hz to 100 kHz
::
R e d S p e c P r i n t e d C i r c u i t A u d i o T r a n s f o r m e r s
Type
No.
SP-4
SP-5
SP-13
SP-20
SP-21
SP-22
SP-29
SP-33
SP-42
SP-48
SP-49
SP-50
SP-51
SP-52
SP-66
SP-67
SP-68
SP-69
SP-70
SP-128
SP-310
Mil Type
No.
TF5S21ZZ
TF5S21ZZ
TF5S21ZZ
TF5S21ZZ
TF5S21ZZ
TF5S21ZZ
TF5S21ZZ
TF5S21ZZ
TF5S21ZZ
TF5S21ZZ
TF5S21ZZ
TF5S21ZZ
TF5S21ZZ
TF5S21ZZ
TF5S21ZZ
TF5S21ZZ
TF5S21ZZ
TF5S21ZZ
TF5S21ZZ
TF5S21ZZ
Shield Only
Power
Level
in mW
10
25
40
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
•
Section
A
B
C
Matching Impedance
Primary
Secondary
200,000 CT
50,000 CT
25,000 CT/20,000 CT
10,000 CT
10,000 CT
10,000
10,000 CT
1,000
150 CT
7,500 CT
300 CT
500 CT
900 CT
1,500 CT
10,000 CT
600 CT
10,000
600
600
0.1H
1,000 CT
1,000 CT
1,000/800 CT
1,200 CT
2,000 CT
2,000 CT/500§
500 CT
50
12
12
600
600
600
600
10,000 CT
600 CT
10,000 CT/2,500§
600 CT/150§
600
•
Max. Ma DC
Unbalanced
in Primary
0.0
0.0
0.5
1.0
1.0
1.0
1.0
3.0
10.0
1.0
7.0
3.0
4.0
3.0
1.0
3.0
1.0
3.0
3.0
5.0
DC Resistance
Primary
Secondary
5,300.0
3,800.0
1,700.0
1,050.0
1,050.0
1,050.0
1,050.0
145.0
18.0
796.0
41.0
67.0
104.0
168.0
1,000.0
72.0
1,000.0
72.0
72.0
15.0
100.0
75.0
115.0
200.0
330.0
146.0/168.0§
80.0
8.0
2.7
2.9
98.0
98.0
96.0
92.0
1,300.0
92.0
565.0/650.0§
40.0/45.0§
92.0
•
Overall
Turns
Ratio
14.1:1.0
7.1:1.0
5.0:1.0
2.88:1.0
2.24:1.0
4.48:1.0:1.0
4:47:1.0
4.4:1.0
3.54:1.0
25.0:1.0
1.0:1.42
1.0:1.1
1.22:1.0
1.58:1.0
1.0:1.0
1.0:1.0
2.1:1.0
2.0:1.0:1.0
1.0:1.0
•
Figure
No.
3
3
3
3
3
4
3
1
2
2
2
2
2
2
3
3
4
4
1
5
D
E
CT = Center Tap
§ Split secondary
::
O u t l i n e D i m e n s i o n s
Te c h n i c a l N o t e s
1.
Plug-in terminals are precision spaced to provide
fixed mounting centers.
2.
Red Spec transformers are hi-pot tested at 1,000 VRMS.
3.
150 VDC working voltage.
4.
Red Spec transformers feature small footprint
base dimensions of .310 by .410 inch.
5.
Pin diameter = .020 inch.
Split Windings
Inductor
CT Primary
Tap Primary - Tap Secondary
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
www.TriadMagnetics.com
|
22520 B Temescal Canyon Road, Corona, CA 92883
|
Phone 951-277-0757
|
FAX 951-277-2757
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