E-Series RF 4:1 Transformer 0.2 - 350 MHz ET4-1 V3.00 Features ● ● SM-1 4:1 Impedance Ratio CT on Secondary Specifications @ 25°C Frequency Range 0.2 - 350 MHz Insertion Loss 0.2 - 350 MHz 0.35 - 300 MHz 2.0 - 100 MHz Maximum 3 dB 2 dB 1 dB Amplitude Imbalance 2 - 100 MHz 0.2 - 350 MHz Maximum 0.1 dB 1.0 dB Phase Imbalance 2 - 100 MHz 0.2 - 350 MHz Maximum 1° 5° Dimensions in ( ) are in mm. Unless Otherwise Noted: .x = ±0.04 (1.00) .xx = ±0.02 (0.50) .xxx = ±0.010 (0.250) Schematic PRI SEC Pin Configuration Function Pin No. Primary dot Ordering Information Part No. ET4-1-SM-1 ET4-1-SM-1TR ET4-1-SM-5 ET4-1-SM-20 ET4-1-SM-20TR ET4-1-SM-21 Packaging SM-1 in Tubes SM-1 in Tape & Reel SM-5 in Tubes SM-20 in Tubes SM-20 in Tape & Reel SM-21 in Tubes 4 Primary 6 Secondary dot 3 Secondary 1 Secondary CT 2 Not Connected 5 Absolute Maximum Ratings Parameter RF Power DC Current Operating/Storage Temp. Absolute Maximum 250 mW 30 mA -40°C to +85°C S 0193 C 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 ET4-1 E-Series RF 4:1 Transformer V3.00 SM-5 SM-21 Dimensions in ( ) are in mm. Unless Otherwise Noted: .x = ±0.04 (1.00) .xx = ±0.02 (0.50) .xxx = ±0.010 (0.250) Dimensions in ( ) are in mm. Unless Otherwise Noted: .x = ±0.04 (1.00) .xx = ±0.02 (0.50) .xxx = ±0.010 (0.250) Note: Pin numbers do not appear on the unit. For reference only. Index mark indicates pin 6. SM-20 Dimensions in ( ) are in mm. Unless Otherwise Noted: .x = ±0.04 (1.00) .xx = ±0.02 (0.50) .xxx = ±0.010 (0.250) Note: Pin numbers do not appear on the unit. For reference only. Index mark indicates pin 6. Specifications Subject to Change Without Notice. M/A-COM, Inc. 2 North America: 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