E-Series RF 4:1 Transformer 8 - 750 MHz ETK4-1T-SM49 V3.00 Features ● ● SM-49 4:1 Impedance Ratio CT on Secondary Specifications @ 25°C Frequency Range 8 - 750 MHz Insertion Loss 70 - 250 MHz 15 - 600 MHz 8 - 750 MHz Maximum 2 dB 3 dB 4 dB Amplitude Imbalance 8 - 750 MHz Maximum 1 dB Phase Imbalance 8 - 750 MHz Maximum 20° Schematic PRI SEC Dimensions in ( ) are in mm. Unless Otherwise Noted: .x = ±0.04 (1.00) .xx = ±0.02 (0.50) .xxx = ±0.010 (0.250) Ordering Information Part No. ETK4-1T-SM49 Packaging Tube Absolute Maximum Ratings Parameter Absolute Maximum RF Power 250 mW DC Current 30 mA Operating/Storage Temperature -20°C to +85°C Pin Configuration Function Primary dot Primary Secondary dot Secondary Secondary CT Pin No. 5 4 1 3 2 S0973 A Specifications Subject to Change Without Notice. M/A-COM, Inc. North America: 1 Tel. (800) 366-2266 Fax (800) 618-8883 ■ Asia/Pacific: Tel. +81 (03) 3226-1671 Fax +81 (03) 3226-1451 ■ Europe: Tel. +44 (1344) 869 595 Fax +44 (1344) 300 020