WIDEBAND TRANSFORMERS High Reliability Wideband Transformers ■ ■ ■ ■ Small wideband transformer: 7.2 × 6.43 × 4.45 mm high 300 V interwinding isolation, 1/4 Watt RF input power 250 mA max current rating Tin-lead terminations for the best possible board adhesion Core material Ferrite Terminations tin-lead over tin over nickel over phos bronze. Ambient temperature –55°C to +125°C Storage temperature Component: –55°C to +125°C. Tape and reel packaging: –55°C to +80°C Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 85% relative humidity) Enhanced crush-resistant packaging 750/7″reel Plastic tape: 12 mm wide, 0.3 mm thick, 8 mm pocket spacing, 2.9 mm pocket depth Pins 1– 3 (primary) Pins 6– 4 (secondary) Impedance Insertion Bandwidth loss max L min2 DCR max3 L min2 DCR max3 ratio1 Part number Schematic pri : sec (MHz) (dB) (µH) (mOhm) (µH) (mOhm) MS520RFA01A1SZ A 1: 1 0.045 – 365 0.25 60 130 60 130 MS520RFA01B1SZ B 1: 1 0.045 – 365 0.25 60 130 60 130 MS520RFA02B1SZ B 1: 2 0.045 – 495 0.25 60 130 140 180 MS520RFA03B1SZ B 1: 3 0.075 – 425 0.35 40 120 140 180 MS520RFA04B1SZ B 1: 4 0.120 – 440 0.60 25 90 100 160 MS520RFA08B1SZ B 1: 8 0.105 – 300 0.60 25 90 200 180 MS520RFA09B1SZ B 1: 9 0.075 – 200 0.30 40 120 500 250 MS520RFA16B1SZ B 1 : 16 0.105 – 135 0.60 25 90 500 250 1. Impedance ratio is for the full primary winding to the full secondary winding. 2. Inductance measured at 100 kHz, 0.1 V, 0 Adc on an Voltech AT3600 or equivalent. 3. DCR measured on a Voltech AT3600 or equivalent. 4. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. Schematics 6 1 A Pri B Sec 3 4 1 6 Pri 5 Sec 3 4 1 6 Pri 2 5 Sec 4 3 ® Specifications subject to change without notice. Please check our website for latest information. 1102 Silver Lake Road Cary IL 60013 © Coilcraft, Inc. 2012 Document MS099-1 Phone 800-981-0363 Fax 847-639-1508 Revised 06/23/11 E-mail [email protected] Web www.coilcraft-cps.com WIDEBAND TRANSFORMERS ML520RFA Series 0 Attenuation (dB) Attenuation (dB) 0 1 2 3 520RFA01A1 3 dB bandwidth: 0.045 – 365 MHz 4 5 0.01 0.1 1 10 100 1 2 3 520RFA08B1 5 1000 3 dB bandwidth: 0.105 – 300 MHz 4 0.01 1 0.1 Frequency (MHz) 1 2 3 520RFA01B1 3 dB bandwidth: 0.045 – 365 MHz 4 0.01 0.1 1 10 100 100 1000 520RFA09B1 3 dB bandwidth: 0.175 – 200 MHz 4 0.01 1 0.1 10 Frequency (MHz) 0 Attenuation (dB) Attenuation (dB) 1000 3 1 2 3 520RFA02B1 3 dB bandwidth: 0.045 – 495 MHz 4 0.01 0.1 1 10 100 1 2 3 520RFA16B1 5 1000 3 dB bandwidth: 0.105 – 135 MHz 4 0.01 0 1 XXXX 6 2 YYWW CHINA 5 3 520RFA03B1 5 0.01 0.1 10 0.256 ±0.008 6,48 ±0,20 4 Internal code 3 dB bandwidth: 0.075 – 425 MHz 1 Part number designation 1 2 4 10 Frequency (MHz) Indicates pin 1 3 1 0.1 Frequency (MHz) Attenuation (dB) 100 2 5 1000 0 100 1000 0.267 ±0.008 6,77 ±0,20 Frequency (MHz) 0.175 ±0.008 4,45 ±0,20 0 Attenuation (dB) 1000 1 Frequency (MHz) 5 100 0 Attenuation (dB) Attenuation (dB) 0 5 10 Frequency (MHz) 0.283 ±0.010 7,20 ±0,25 1 2 0.100 ±0.004 2,54 ±0,10 3 0.290 7,37 0.06 1,52 0.100 2,54 1 6 520RFA04B1 3 dB bandwidth: 0.120 – 440 MHz 4 5 0.01 0.1 1 10 100 1000 Frequency (MHz) ® 0.02 0,5 inches Dimensions are in mm Specifications subject to change without notice. Please check our website for latest information. 1102 Silver Lake Road Cary IL 60013 © Coilcraft, Inc. 2012 0.04 1,00 0.05 Recommended 1,27 Land Pattern Document MS099-2 Phone 800-981-0363 Fax 847-639-1508 Revised 06/23/11 E-mail [email protected] Web www.coilcraft-cps.com