Description
P2602 ETAL V.32 V.22 bis FAX MODEM LINE MATCHING TRANSFORMER 5 PIN THRU-HOLE
is a variant of industry standard P1200 with one centre-tapped winding. P2602 meets international safety standards, being vacuum encapsulated and 100% tested to withstand 6.5kV DC. The part is completely lead-free, compliant with RoHS Directive 2002/95/EC, and suitable for lead-free and conventional processing. P2602 is ideal for voice telecommunications applications and for data communications to V.32 bis (14,400 bits/second) data rates. With care, P2602 may be used for V.34 applications to 28,800 bits/second. P2602 is specifically designed to be easily matched to both 600 ohm and complex impedance telephone lines, using a minimum of external components. P2602 is certified to IEC 60950 and a UL Recognized Component and is supported by an IEC CB Test Certificate.
Features
Industry Standard Lead-free (Pb-free) RoHS compliant 12.6mm (0.5″) seated height Vacuum encapsulated IEC 60950 and UL 60950 Certified UL Recognized Component Centre-tap winding
Applications
V.32bis and V.22bis modems Line Matching Passive hybrids Instrumentation Fax / modems Voice
Specifications
Electrical = 25ºC and as circuit fig. 2 unless otherwise stated. Parameter Insertion Loss Frequency response Conditions 560 LF-3dB cutoff HF-3dB cutoff 5kHz Method TG25 Excitation 50Hz 250V rms. Output voltage across line 50Hz DC Ambient temperature ºC Min 10 18 Typ -72 Max Units dB Hz kHz dB dBm
Return Loss Third Harmonic Distortion (1) Balance Saturation
Voltage isolation (2) Operating range: Functional Storage
Lumped equivalent circuit parameters as Fig. 1 DC resistance, RDC (3)(5) Leakage inductance L Shunt inductance Lp (4) Shunt loss 10mV 1kHz Sum of windings mH
Notes 1. Third harmonic typically exceeds other harmonics 20dB. 2. Components are 100% tested at 6.5kV DC. 3. Caution: do not pass DC through windings. Telephone line current, etc. must be diverted using choke or semiconductor line hold circuit. 4. At signal levels greater than 100mV, Lp will increase and Rp will decrease slightly but the effect is usually favourable to the return loss characteristic. 5. Resistance imbalance between the two
halves of the tapped winding will not be greater than 5.
Figure 3 gives flat RX and TX responses against the CTR21 complex reference impedance (typically around – 3.4kHz). Return loss is typically better than 20dB. The circuit values in parentheses give optimum flatness at a small sacrifice in return loss. For circuits with existing board drillings, figure 4 gives good return loss (>20dB) and RX flatness against the CTR21 complex reference impedance, but TX flatness is degraded by the use of this topology.
Features: Applications:
Industry Standard V.32bis and V.22bis modems
12.6mm (0.5″) seated height Line Matching
Vacuum encapsulated Passive hybrids
IEC 60950 and UL 60950 Certified Instrumentation
UL Recognized Component Fax / modems / Voice
P2602 is a variant of industry standard P1200 with one centre-tapped winding.
Manufacturer Part Number: P2602
Manufacturer: Etal
