SCHOTT 37540

TITLE
OCTAL T1/E1 TRANSFORMER
37540
PN
AGENCY APPROVAL: NA
F
REV
2
SH
OF
12
DIMENSIONAL OUTLINE
1.130
1.115
SPECIFICATIONS
EXTENDED TEMP RANGE (-40C TO +85C)
1. TURNS RATIO:
TRANSMIT (IN+ TO IN-) : (OUT+ TO OUT-)
RECEIVE (IN+ TO IN-) : (OUT+ TO OUT-)
2. INDUCTANCE:
TRANSMIT (IN+ TO IN-)
RECEIVE (IN+ TO IN-)
TRANSMIT (IN+ TO IN-)
RECEIVE (IN+ TO IN-)
3. LEAKAGE INDUCTANCE:
TRANSMIT IN+ TO IN(WITH OUT+ AND OUT- SHORT)
RECEIVE IN+ TO IN(WITH OUT+ AND OUT- SHORT)
4. INTERWINDING CAPACITIANCE:
(IN+, IN-) TO (OUT+, OUT-)
1 : 1.36CT ±2%
1 : 2CT ±2%
SCHOTT
.
.495
.480
37540
PIN 1
INDICATOR
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
.640±.010
DATE CODE &
COUNTRY OF ORIGIN
.018±.002
.950±.010
.010±.002
.220±.010
0.5uH MAX. @ 1MHz
.015±.005
REF. PWB LAYOUT
.050
0.5uH MAX. @ 1MHz
.090
.660
35pf MAX @ 1MHz
.090
5. D.C. RESISTANCE:
TRANSMIT (IN+ TO IN-),(RECIEVE(IN+ TO IN-)
RECEIVE (OUT + TO OUT-)
TRANSMIT (OUT + TO OUT-)
.030
0.6ohms Max.
1.2 ohms Max.
0.9 ohms Max
COPLANARITY OF PINS IS LESS THEN OR EQUAL TO 0.004 INCHES
SCHEMATIC
1.36CT : 1
6. DIELECTRICAL VOLTAGE WITHSTAND:
(IN+, IN-) TO (OUT+, OUT-)
OUT + 1
1500VAC for 60 seconds
(1800 VAC for 1 second production test)
7. RETURN LOSS: (WINDING WITH TURNS RATIO 2&1.36 IS 100 OHM REF.)
(25 OHMS CONNECTED TO THE LOW TURNS SIDE OF 2 RATIO TRANSFORMER)
(54 OHMS CONNECTED TO THE LOW TURNS SIDE OF 1.36 RATIO TRANSFORMER)
12dB MIN
51KHz TO 102KHz
18dB MIN
102KHz TO 2.048MHz
14dB MIN
2.048MHz TO 3.072 MHz
40 IN +
TX
2
TX
12
OUT -
3
OUT -
13
39 IN -
1 : 2 CT
IN +
4
RX
IN -
5
65dB OR BETTER
9. COMMON MODE REJECTION:
50dB OR BETTER @ 1MHz
TX
IN +
37
RX
36 OUT -
IN -
35 IN +
9
34 IN -
1 : 2 CT
RX
IN -
10
TOLERANCES UNLESS
OTHERWISE SPECIFIED
14
IN +
32
RX
31 OUT -
IN -
INCHES / DECIMAL
MILLIMETERS (mm)
IN +
29
IN -
28
OUT +
27
15
26
OUT -
25
IN +
24
IN -
23
OUT +
1.36CT : 1
17
OUT - 18
33 OUT +
30
1 : 2 CT
OUT + 16
TX
7
OUT - 8
IN +
1000 Parkers Lake Road, Wayzata, MN 55391, (952) 475-1173, www.schottcorp.com
38 OUT +
1.36CT : 1
OUT + 6
8. CROSS TALK:
1.36CT : 1
OUT + 11
1 : 2 CT
19
22
20
.XX = ± .01
.XX = ± 0.20
21
.XXX = ±.005
OUT -
ANGLES ± 1°