TITLE
PN
REV
OCTAL T1/E1 TRANSFORMER
37539
F
12
2
OF
AGENCY APPROVAL: NA
SH
DIMENSIONAL
OUTLINE
ELECTRICAL SPECIFICATIONS: Extended Temperature Range
1.130
1.115
1. TURNS RATIO:
SCHOTT
TRANSMIT (IN+ TO IN-) : (OUT+ TO OUT-)
RECEIVE (IN+ TO IN-) : (OUT+ TO OUT-)
1 : 2 ±2%
1 : 2CT ±2%
.495
.480
37539
DATE CODE &
COUNTRY OF ORIGIN
.640±.010
.
2. INDUCTANCE:
TRANSMIT (IN+ TO IN-)
RECEIVE (IN+ TO IN-)
TRANSMIT (IN+ TO IN-)
RECEIVE (IN+ TO IN-)
1.5 mH MIN. @ 0.01V. 100KHz . 25C
1.5 mH MIN. @ 0.01V. 100KHz . 25C
600 uH MIN. @ 0.01V. 100KHz . -40C TO +85C
600 uH MIN. @ 0.01V. 100KHz .- 40C TO +85C
PIN 1
.018±.002
.950±.010
INDICATOR
.010±.002
3. LEAKAGE INDUCTANCE:
TRANSMIT IN+ TO IN-
(WITH OUT+ AND OUT- SHORT)
RECEIVE IN+ TO IN-
.220±.010
0.6uH MAX. @ 1MHz
0.6uH MAX. @ 1MHz
.015±.005
REF. PWB LAYOUT
.050
(WITH OUT+ AND OUT- SHORT)
.090
4. INTERWINDING CAPACITIANCE:
(IN+, IN-) TO (OUT+, OUT-)
.660
35pf MAX @ 1MHz
5. D.C. RESISTANCE:
(IN+ TO IN-)
(OUT+ TO OUT-)
.090
1.0 ohms Max.
1.5 ohms Max.
.030
COPLANARITY OF PINS IS LESS THEN OR EQUAL TO 0.004 INCHES
6. DIELECTRICAL VOLTAGE WITHSTAND:
(IN+, IN-) TO (OUT+, OUT-)
SCHEMATIC
1500 VAC for 60 seconds
(1800VAC for 1 second production test)
1 : 2
1 : 2
IN +
1
2
OUT +
IN + 11
TX
40
30
OUT +
TX
7. RETURN LOSS: (WINDING WITH TURNS RATIO 2 IS 100 OHM REF.)
(25 OHMS CONNECTED TO THE LOW TURNS SIDE OF 2 RATIO TRANSFORMER)
51KHz TO 102KHz
102KHz TO 2.048MHz
2.048MHz TO 3.072 MHz
IN -
12
39
38
29
28
OUT -
IN +
OUT -
IN +
IN -
12dB MIN
18dB MIN
14dB MIN
2CT : 1
2CT : 1
OUT +
RX
OUT +
RX
3
4
5
13
14
15
65dB MIN
OUT -
8. CROSS TALK:
36
35
26
25
IN -
OUT -
OUT +
IN -
2CT : 1
2CT : 1
50dB MIN @ 1 MHz
IN +
OUT +
RX
6
7
8
16
17
18
IN +
9. COMMON MODE REJECTION RATIO:
RX
OUT -
33
32
23
22
IN -
OUT -
IN -
1 : 2
1 : 2
IN +
TX
9
IN +
TX
19
OUT +
OUT +
IN -
10
20
31
21
OUT -
IN -
OUT -
.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)