TITLE
PN
REV
OCTAL T1/E1 TRANSFORMER
37541
F
12
2
OF
AGENCY APPROVAL: NA
SH
DIMENSIONAL
OUTLINE
1.130
1.115
SPECIFICATIONS
EXTENDED TEMP RANGE (-40C TO +85C)
SCHOTT
1. TURNS RATIO:
TRANSMIT (IN+ TO IN-) : (OUT+ TO OUT-)
RECEIVE (IN+ TO IN-) : (OUT+ TO OUT-)
.495
.480
1 : 2CT ±2%
1 : 1CT ±2%
37541
DATE CODE &
COUNTRY OF ORIGIN
.640±.010
.
2. INDUCTANCE:
PIN 1
.018±.002
.950±.010
1.2 mH MIN. @ 0.01V. 100KHz . 25C
1.2 mH MIN. @ 0.01V. 100KHz . 25C
600 uH MIN. @ 0.01V. 100KHz . -40C TO +85C
600 uH MIN. @ 0.01V. 100KHz . -40C TO +85C
INDICATOR
TRANSMIT (IN+ TO IN-)
RECEIVE (IN+ TO IN-)
TRANSMIT (IN+ TO IN-)
RECEIVE (IN+ TO IN-)
.010±.002
.220±.010
3. LEAKAGE INDUCTANCE:
TRANSMIT IN+ TO IN-
(WITH OUT+ AND OUT- SHORT)
RECEIVE IN+ TO IN-
0.5uH MAX. @ 1MHz
0.5uH MAX. @ 1MHz
.015±.005
REF. PWB LAYOUT
.050
.090
(WITH OUT+ AND OUT- SHORT)
.660
4. INTERWINDING CAPACITIANCE:
35pf MAX @ 1MHz
(IN+, IN-) TO (OUT+, OUT-)
.090
5. D.C. RESISTANCE:
(IN+ TO IN-)
RECEIVE (OUT+ OUT-)
TRANSMIT(OUT+ TO OUT-)
.030
0.6 OHMS
0.6 ohms Max.
1.2 ohms Max.
COPLANARITY OF PINS IS LESS THEN OR EQUAL TO 0.004 INCHES
SCHEMATIC
1 : 2CT
1CT : 1
1 : 2CT
6. DIELECTRICAL VOLTAGE WITHSTAND:
(IN+, IN-) TO (OUT+, OUT-)
IN +
1
2
IN +
11
12
40
39
38
30
29
28
OUT +
OUT +
1500VAC for 60 seconds
(1800 VAC for a second production test)
TX
TX
IN -
OUT -
IN -
OUT -
IN +
7. RETURN LOSS: (WINDING WITH TURNS RATIO 2 IS 100 OHM REF.)
(25 OHMS CONNECTED TO THE LOW TURNS SIDE O 2 RATIO TRANSFORMER)
( 100 OHMS CONNECTED TO BOTH SIDES OF 1 RATIO TRANSFORMER)
51KHz TO 102KHz
102KHz TO 2.048MHz
1CT : 1
1 : 2CT
OUT +
RX
3
4
5
13
14
37 IN +
OUT +
RX
27
26
12dB MIN
18dB MIN
14dB
OUT -
OUT - 15
36
IN -
IN -
2.048MHz TO 3.072 MHz
1 : 2CT
1CT : 1
IN +
6
IN +
TX
16
35
34
33
25
24
23
OUT +
OUT +
65dB OR BETTER
8. CROSS TALK:
TX
50dB OR BETTER
9. COMMON MODE REJECTION:
IN -
IN -
7
17
OUT -
OUT -
IN +
1CT : 1
8
9
18
19
20
OUT +
RX
32 IN +
OUT +
22
21
RX
OUT -
10
31
OUT -
IN -
IN -
.XX = ± .01
.XXX = ±.005
ANGLES ± 1°
INCHES
/ DECIMAL
TOLERANCES UNLESS
OTHERWISE SPECIFIED
.XX = ± 0.20
1000 Parkers Lake Road, Wayzata, MN 55391, (952) 475-1173, www.schottcorp.com
MILLIMETERS (mm)