T1/E1/CEPT/ISDN-Pri TRANSFORMER
E & E Magnetic Products Limited
Dual Transformer with Common Mode Choke
SMT, Extended Temperature Range
A single SMT package contains dual transformers with
S
CHEMATICS
Common Mode Chokes on both transmit and receive
channels
Models designed for leading transceivers ICs
Optimized for enhanced EMC performance
Extended temperature range of -40°C to +85°C
E
LECTRICAL
S
PECIFICATION @25°C
Part Number
821-M0579
821-M0580
821-M0581
821-M0582
821-M0583
821-M0584
821-M0585
821-M0586
821-M0587
821-M0588
821-M0589
821-M0590
821-M0591
821-M0592
Turns Ratio
(Pri: Sec ±2%)
Tx
1CT:2CT
1CT:2CT
1CT:1.15CT
1CT:1.26CT
Rx
1CT:2CT
1CT:1.36CT
1CT:2CT
1CT:2CT
OCL
Secondary
(mH Min)
1.20
1.20
1.20
1.20
1.20
1.20
1.20
1.20
1.20
1.20
1.20
1.20
1.20
1.20
LL
(uH Max)
0.60
0.60
0.60
0.60
0.60
0.60
0.60
0.60
0.60
0.60
0.60
0.60
0.60
0.60
Cww
(pF Max)
25
30
35
30
35
35
35
30
30
25
25
35
35
35
DCR
Primary
(
W
Max)
0.60
0.70
0.80
0.80
0.80
0.90
0.90
0.80
0.70
0.60
0.60
0.90
0.90
0.90
Primary Pins
Tx
1-3
1-3
1-3
1-3
1-3
1-3
1-3
1-3
1-3
1-3
1-3
1-3
1-3
1-3
Rx
4-6
4-6
4-6
4-6
4-6
4-6
4-6
4-6
4-6
4-6
4-6
4-6
4-6
4-6
1CT:1.15CT 1CT:1.15CT
1CT:1CT
1CT:1.15CT
1CT:2CT
1CT:1CT
1CT:1.36CT 1CT:1.36CT
1CT:1.41CT 1CT:1.41CT
1CT:2.3CT
1CT:2CT
1CT:2.42CT 1CT:2.42CT
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1.36CT
1CT:2.4CT
1CT:1CT
Unit B10, 3/F., 94 Tokwawan Road, Kowloon, Hong Kong
1
Tel: (852) 2954 3333
Fax: (852) 2954 3304
TE011(02)
Revised in 04/07
T1/E1/CEPT/ISDN-Pri TRANSFORMER
E & E Magnetic Products Limited
Dual Transformer with Common Mode Choke
SMT, Extended Temperature Range
M
ECHANICAL
D
IMENSIONS
Package: SM012B
.120
3.05
.675 MAX
17.15
.500
12.70
.100
2.54
EE
.600
15.24 MAX
.640
16.26
821-M05xx
(DATE)
.050
1.27
Recommended
Pad Layout
.030±.003
0.76±0.08
.456
11.58 MAX
.010-.020
0.25-0.51
.340
8.64 MAX
0-8°
REFERENCE OR
GAUGE PLANE
.100±.010
2.54±0.25
.500±.010
12.70±0.25
.045±.010
1.14±0.25
Notes: All dimensions are specified in inches with higher precedence in inches.
mm
Unless otherwise specified, all tolerances are
±
.010
.
0.25
Weight (in gram)
Tape & Reel
:
:
4.0 typ.
250 / reel
Schematics
821-M05xx
12
SEC
11
10
9
SEC
8
7
1
2
3
4
5
6
PRI
H
EADQUARTER
Unit B10, 3/F., Merit Industrial Centre,
94 Tokwawan Road, Kowloon,
Hong Kong
Tel: (852) 2954 3333
Fax: (852) 2954 3304
Email: eempl@eleceltek.com
Website: http://www.eleceltek.com
PRI
FOR MORE INFORMATION, PLEASE CONTACT
Information herein is for reference only and subject to change without notice. It does not constitute any representation, warranty or commitment of the company in respect of
the products in any aspect. All logos, brands and product names mentioned herein are trademarks or registered trademarks of their respective owners.The company does
not assume any liability arising out of the application or use of any product or circuit described herein Copyrights 2004, E & E Magnetic Products Limited.
Unit B10, 3/F., 94 Tokwawan Road, Kowloon, Hong Kong
2
Tel: (852) 2954 3333
Fax: (852) 2954 3304
TE011(02)
Revised in 04/07
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