Analog Telephony/Modem Couplers Suitable modem speeds V.32 (9.6 k

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Analog Telephony/Modem Couplers Suitable modem speeds V.32 (9.6 k

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SMIT-3151
Analog Telephony/Modem Couplers
Suitable modem speeds V.32 (9.6 kbps). Total Harmonic Distortion rated typ. -10dBm Insertion Loss rated 3.50 typ. 1000 Complies with UL1459 safety norms. Reflects Primary with Ohms Secondary Load. Very small footprint (16.5 16.5 mm). Very Profile (10.5 mm). configuration.
DESCRIPTION
Sumida SMIT-3151 "Wet" Modem Isolation Transformer suitable V.32 (9.6 kbps) analog modem applications compliant with Domestic safety norms. SMIT-3151 cost-effective device data transfer applications such (credit-card) terminals, which require limited height above board. industry surveys revealed other coupler worldwide suited these applications price point SMIT-3151.
NOMENCLATURE
SUPPLIER NAME
(fig.
SUPPLIER
SMIT-3151
PRODUCT COMPLIANCE
UL/C- recognized file number: E171120
/C-UL APPROVAL COUNTRY ORIGIN
sumida
XX-XX
DATE CODE
LOCATES TERMINAL
MECHANICAL DIMENSIONS
DIMENSIONS: MILLIMETERS [INCHES] 15.75 [0.620]
7.50 [0.295]
(fig.
5.00 [0.197]
RECOMENDED LAYOUT
17.70 [0.697] 2.50 [0.098]
TERMINAL CONNECTION (BOTTOM VIEW)
SMIT-3151
sumida
MEXICO
XX-XX
15.62 [0.615]
22.5 [0.886]
1.20 [0.047]
PRIMARY (LINE)
2.45 [0.096]
SECONDARY (MODEM)
17.78 [0.70]
0.40 [0.016]
2.50 [0.098]
Literature number: SMIT-3151 ©Copyright 2001, Sumida Corporation rights reserved. Printed U.S.A. 11/01
www.sumida.com
North America Hong Kong Europe Tel. 2880 6688 Fax. 2565 9600 Tel. 328850 Fax. 300890 Tel. 6700 Fax. 6720 Singapore Taiwan Japan Tel. 3388 Fax. 3390 Tel. 2523 6368 Fax. 2523 6369 Tel. 3980 2212 Fax. 3980 2213
SMIT-3151
Analog Telephony/Modem Couplers
Electrical Performance Specifications
Parameters
Impedance Total Harmonic Distortion Insertion Loss Return Loss
Conditions
Reflected Primary with load Secondary IEEE method; @1000 4000 Match Fig.3)
Units
Ohms
4.00
Vrms Vrms
1000 1250 ±5.0 ±2.0
Dielectric Breakdown Isolation Safety Standard tested min. HiPot Voltage Production methods applied: Duration Trip Leakage Current Frequency Response Hz-600 Hz-3500 Longitudinal Balance part 68.310 -1000 1000 4000 Resistance 20°C, ±10% current Primary Turns Ratio Operating temperature Storage temperature Soldering temperature Sec. Primary Secondary; Primary winding (Rpri) Secondary winding (Rsec)
Ohms mADC Turns
Electrical Performance Specifications 25°C unless otherwise specified)
MATCH
(FIG.3)
SCHEMATIC EQUIVALENT
Typical transformer model 1Vrms,
(FIG.4)
RLine=
CIN=10µF Rpri =135 Css= 10nF RLoad=470 Lp=7.2H
Primary Secondary
LLeak=32 RSec=160
Cps=100nF
Rp=56k
Turns Ratio
Sumida Corporation makes assertion warranty that circuitry uses thereof disclosed herein non-infringing valid foreign patents. Sumida assumes liability result said specifications reserves right make changes specifications without notice. Sumida does authorize warrant Sumida device life support devices and/or systems. Contact your nearest Sumida Sales Office latest specifications.
Literature number: SMIT-3151 ©Copyright 2001, Sumida Corporation rights reserved. Printed U.S.A. 11/01
SMIT-3151
Analog Telephony/Modem Couplers
TOTAL HARMONIC DISTORTION
-100 1000 2000 4000 Typical (dB) across Frequency (Hz) -1.0 -2.0 -3.0 -4.0 1000 2000 4000
FREQUENCY RESPONSE
Typical Frequency Response (dB) across Frequency (Hz)
INSERTION LOSS
-0.5 -1.0 -1.5 -2.0 -2.5 -3.0 -3.5 -4.0 1000 2000 4000 Typical Insertion Loss (dB) across Frequency (Hz)
RETURN LOSS
Typical Return Loss (dB) across Frequency (Hz)
1000
2000
4000
(Measured match depicted Fig.
Literature number: SMIT-3151 ©Copyright 2001, Sumida Corporation rights reserved. Printed U.S.A. 11/01
www.sumida.com
North America Hong Kong Europe Tel. 2880 6688 Fax. 2565 9600 Tel. 328850 Fax. 300890 Tel. 6700 Fax. 6720 Singapore Taiwan Japan Tel. 3388 Fax. 3390 Tel. 2523 6368 Fax. 2523 6369 Tel. 3980 2212 Fax. 3980 2213

Analog Telephony/Modem Couplers Suitable modem speeds V.32 (9.6 k

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