Wideband Transformers WidebandTransformersforCriticalApplications ■ Miniature wideband transformer: 4 mm square 3 mm high ■ 300 V interwinding isolation, 1/4 Watt RF input power ■ 250 mA max current rating Core material Ferrite Terminations Tin-silver-copper over silver-platinum-glass frit. Other terminations available at additional cost. Ambient temperature –40°C to +85°C Storage temperature Component: –55°C to +85°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) Packaging 750/7″reel; 3000/13″ reel Plastic tape: 12 mm wide, 0.3 mm thick, 8 mm pocket spacing, 2.9 mm pocket depth Impedance ratio2 Bandwidth 1 Part number Schem.pri : sec (MHz) 0.400 – 600 ST458RFW01A1LZA 1 : 1 0.250 – 750 ST458RFW01B1LZB 1 : 1 0.200 – 500 ST458RFW02B1LZB 1 : 2 0.300 – 900 ST458RFW03B1LZB 1 : 3 0.250 – 750 ST458RFW04B1LZB 1 : 4 ST458RFW04B2LZB 1 : 4 1.500 – 1200 0.500 – 1000 ST458RFW04B3LZB 1 : 4 0.300 – 700 ST458RFW04B4LZB 1 : 4 0.150 – 600 ST458RFW08B1LZB 1 : 8 0.300 – 500 ST458RFW09B1LZB 1 : 9 ST458RFW16B1LZB 1 : 16 0.600 – 300 0.250 – 800 ST458RFW04C1LZC 1 : 4 Insertion Pins 1 – 3 (primary) Pins 4 – 6 (secondary) DC loss max L min3 DCR max4 L min3 DCR max4 imbalance5 (dB) (µH) (mOhm) (µH) (mOhm) max (mA) 0.40 10 120 10 120 — 0.58 9.5 75 9.5 75 36 0.50 10 120 20 150 8.5 0.60 9.0 100 27 150 8.5 1.0 9.0 55 36 120 30 2.0 2.0 50 8.0 100 15 0.90 5.0 80 20 120 10 0.65 9.0 80 36 200 7.5 0.60 22 120 176 310 17 0.54 9.0 80 81 230 5.0 0.80 5.0 80 80 230 5.0 1.0 9.0 60 36 120 30 Schematics 1. When ordering, please specify termination and testing codes: ST458RFW04C1LZ Termination:L=Tin-silver-copper (95.5/4/0.5) over silver palladium-platinum-glass frit. Special order: S = Tin-lead (63/37). Testing:Z=COTS H = Screening per Coilcraft CP‑SA‑10001 2. Impedance ratio is for the full primary winding to the full secondary winding. 3. Inductance measured at 100 kHz, 0.1 V, 0 Adc on an Agilent/HP 4192 or equivalent. 4. DCR measured on a micro-ohmmeter. 5. DC imbalance is the maximum difference in current measured at pins 4 and 6 with the source at pin 5. Inductance drop is 15% at maximum imbalance. 6. Electrical specifications at 25°C. Measurements are referenced to 50 Ohms. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. A 1 Pri B Sec 3 4 1 6 Pri C 5 Sec 3 4 1 6 Pri 2 3 ® Specifications subject to change without notice. Please check our website for latest information. 1102 Silver Lake Road Cary IL 60013 © Coilcraft, Inc. 2012 6 5 Sec 4 Document ST424-1 Revised 03/09/12 Phone 800-981-0363 Fax 847-639-1508 E-mail [email protected] Web www.coilcraft-cps.com Wideband Transformers ST458RFW Wideband Transformers for Critical Applications Dimensions 0.165 max 4,19 0.175 max 4,45 Dot indicates pin 1 0.120 max 3,05 1 0.030 0,76 2 0.060 1,52 6 3 0.040 1,02 6 5 0.120 3,05 4 Recommended Suggested Land Pattern Land 0.045 1,14 4 1 0.060 1,52 Dimensions are in 5 2 3 0.030 0,76 inches mm ® Specifications subject to change without notice. Please check our website for latest information. 1102 Silver Lake Road Cary IL 60013 © Coilcraft, Inc. 2012 Document ST424-2 Revised 03/09/12 Phone 800-981-0363 Fax 847-639-1508 E-mail [email protected] Web www.coilcraft-cps.com Wideband Transformers Attenuation (dB) 0 1 2 3 458FRW01A1 3 dB bandwidth: 0.400 – 600 MHz 4 5 0.01 0.1 1 10 100 1000 Frequency (MHz) 10000 Attenuation (dB) 0 1 2 3 458FRW01B1 3 dB bandwidth: 0.250 – 750 MHz 4 5 0.01 0.1 1 10 100 1000 Frequency (MHz) 10000 Attenuation (dB) 0 1 2 3 458FRW02B2 3 dB bandwidth: 0.200 – 500 MHz 4 5 0.01 0.1 1 10 100 1000 Frequency (MHz) 10000 Attenuation (dB) 0 1 2 3 458FRW03B1 3 dB bandwidth: 0.300 – 900 MHz 4 5 0.01 0.1 1 10 100 1000 Frequency (MHz) 10000 Attenuation (dB) 0 1 2 3 458FRW04B1 3 dB bandwidth: 0.250 – 750 MHz 4 5 0.01 0.1 1 10 100 Frequency (MHz) 1000 10000 0 Attenuation (dB) Attenuation (dB) Attenuation (dB) Attenuation (dB) Attenuation (dB) Attenuation (dB) Attenuation (dB) ST458RFW Wideband Transformers for Critical Applications 1 2 3 458FRW04B2 3 dB bandwidth: 1.500 – 1200 MHz 4 5 0.01 0.1 1 10 100 Frequency (MHz) 1000 10000 0 1 2 3 458FRW04B3 3 dB bandwidth: 0.500 – 1000 MHz 4 5 0.01 0.1 1 10 100 Frequency (MHz) 1000 10000 1000 10000 1000 10000 1000 10000 1000 10000 1000 10000 0 1 2 3 458FRW04B4 3 dB bandwidth: 0.300 – 700 MHz 4 5 0.01 0.1 1 10 100 Frequency (MHz) 0 1 2 3 458FRW08B1 3 dB bandwidth: 0.150 – 600 MHz 4 5 0.01 0.1 1 10 100 Frequency (MHz) 0 1 2 3 458FRW09B1 3 dB bandwidth: 0.300 – 500 MHz 4 5 0.01 0.1 1 10 100 Frequency (MHz) 0 1 2 3 458FRW16B1 3 dB bandwidth: 0.600 – 300 MHz 4 5 0.01 0.1 1 10 100 Frequency (MHz) 0 1 2 3 458FRW04C1 3 dB bandwidth: 0.250 – 800 MHz 4 5 0.01 0.1 1 10 100 Frequency (MHz) Attenuation measured on a network analyzer (re: 50 Ohms) ® Specifications subject to change without notice. Please check our website for latest information. 1102 Silver Lake Road Cary IL 60013 © Coilcraft, Inc. 2012 Document ST424-3 Revised 03/09/12 Phone 800-981-0363 Fax 847-639-1508 E-mail [email protected] Web www.coilcraft-cps.com