(1/2)
For ISDN S/T Interface Transformers
SMD, PC Card, Pin Terminal
CIT-S Series
FEATURES
• SMD, pin-terminated, and PC Card (PCMCIA, Type I) types are
available for various application ICs.
• There is no flow of unbalanced current during phantom feeding.
• Low-profile design makes it possible to offer these parts in tape
and reel packaging.
• The wire terminations and soldering terminals are physically
separated. This prevents wire breakage or pin lifting during the
mounting/soldering process.
• Any automated mounting machine of either the mechanical centering or optical centering type can be used.
• Supports reflow soldering.
APPLICATIONS
• Digital terminal equipment in ISDN (TE1: telephone, facsimile,
etc.)
• Digital PBXs in ISDN (TE2)
• Te r m i n a l a d ap t e r s ( TA )
• Interface boards (TA)
TRANSFORMERS APPLICABLE FOR IC
SHAPES AND DIMENSIONS/CIRCUIT DIAGRAM
SMD TYPE CIT1212EMS-S20, -S15, -S10
TOSHIBA
YAMAHA
Turns ratio
1:2
1:2
1:2
1:2
1:2
MC145474
MC145475
1:1
1:1
NEC
µPD98201
µPD98205
[Transmitter]
MB86405
[Receiver]
1:2
1 : 1.5
FUJITSU
MB86405
[Transmitter]
CIT1212EMS-S20
(SMD type)
CIT1311S-S20
(PC card type)
CIT1414EPC-S20-02
(Pin type)
8 7
6 5
TDK
Directional
marking
Lot No.
1:2
µPD98201
µPD98205
[Receiver]
MOTOROLA
TDK part No.
1:2
CIT1212EMS-S10
(SMD type)
CIT1311S-S20
(PC card type)
CIT1414EPC-S10
(Pin type)
CIT1212EMS-S10
(SMD type)
CIT1311S-S20
(PC card type)
CIT1414EPC-S10
(Pin type)
CIT1212EMS-S20
(SMD type)
CIT1311S-S20
(PC card type)
CIT1414EPC-S20-02
(Pin type)
CIT1212EMS-S15
(SMD type)
CIT1311S-S20
(PC card type)
CIT1414EPC-S15
(Pin type)
CIT1212EMS-S20
(SMD type)
CIT1311S-S20
(PC card type)
CIT1414EPC-S20-02
(Pin type)
• Company and product names are registered trademarks.
1 2
3 4
6±0.25
SIEMENS
IC part No.
AM79C30
MT8930
TP3420
PEB2080
PEB2085
TA32031F
TA32032F
YM7303
12.4±0.3
1.27±0.1
6.35±0.2
1.27±0.1
12.5±0.3
0.9±0.3
0.9±0.3
IC makers’ name
AMD
MITEL
N.S.
Weight: 2g
Dimensions in mm
0.5±0.1
8
5
NP1
2
7
NS1
3
6
NP2
NS2
1
4
Turns ratio
NP1:NP2:NS1:NS2=1:1:2:2 (-S20 )
NP1:NP2:NS1:NS2=1:1:1.5:1.5 (-S15 )
NP1:NP2:NS1:NS2=1:1:1:1 (-S10 )
Line side: NP1, NP2
IC side: NS1, NS2
• All specifications are subject to change without notice.
001-01 / 20071014 / e6253_cit_s.fm