TITLE
PN
REV
OCTAL T1/E1 TRANSFORMER
37542
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
37542
DATE CODE &
COUNTRY OF ORIGIN
.640±.010
1 : 1.15 ±2%
1 : 2CT ±2%
.
2. INDUCTANCE:
PIN 1
.018±.002
.950±.010
INDICATOR
TRANSMIT (IN+ TO IN-)
RECEIVE (IN+ TO IN-)
TRANSMIT (IN+ TO IN-)
RECEIVE (IN+ TO IN-)
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
.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
.030
5. D.C. RESISTANCE:
0.6 OHMS MAX
0.8 OHMS MAX
1.2 OHMS MAX
TRANSMIT (IN+ TO IN-)
TRANSMIT(IOUT +TO OUT-)
RECIEVE (OUT+ TO OUT-)
COPLANARITY OF PINS IS LESS THEN OR EQUAL TO 0.004 INCHES
SCHEMATIC
1 : 1.15
2CT : 1
1 : 1.15
2CT : 1
IN +
6. DIELECTRICAL VOLTAGE WITHSTAND:
(IN+, IN-) TO (OUT+, OUT-)
1
2
11
12
IN +
TX
40 OUT +
30 OUT +
1500VAC for 60 seconds
(1800VAC for 1 second production test)
TX
IN -
IN -
39
38
29
28
OUT -
IN +
OUT -
IN +
7. RETURN LOSS: (WINDING WITH TURNS RATIO 2 & 1.15 IS 100 OHM REF.)
25 OHMS CONECTED TO THE LOW TURNS SIDE OF 2 RATIO TRANSFORMER)
(54 OHMS CONNECTED TO THE LOW TURNS SIDE OF 1.15 RATIO TRANSFORMER
51KHz TO 102KHz
102KHz TO 2.048MHz
2.048MHz TO 3.072 MHz
OUT +
3
4
5
OUT + 13
RX
14
15
RX
12dB MIN
18dB MIN
14dB MIN
OUT -
OUT -
36
35
26
25
IN -
IN -
1 : 1.15
2CT : 1
1 : 1.15
2CT : 1
IN +
TX
6
IN + 16
TX
OUT +
OUT +
65dB OR BETTER
8. CROSS TALK:
IN -
IN -
7
34
33
17
24
OUT -
IN +
OUT -
50dB OR BETTER @ 1 MHz
9. COMMON MODE REJECTION:
OUT +
RX
8
9
18
19
20
OUT +
23 IN +
RX
OUT -
10
31
OUT -
21
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)