R F C o m p o n e n t s April 2015 Multilayer Balun For 2300-2700MHz HHM1918A2 1.0x0.5mm [EIA 0402]* * Dimensions Code JIS[EIA] RF Components Multilayer Balun Conformity to RoHS Directive For 2300-2700MHz HHM1918A2 SHAPES AND DIMENSIONS 1.00±0.05 [Top view] 0.40max. (1) (3) (2) 0.50±0.05 (4) Marking [Bottom view] 0.12±0.07 0.30±0.10 0.30±0.10 0.12±0.07 Terminal functions 1 Balanced port 2 Unbalanced port 3 Balanced port 4 GND or DC feed + RF GND Dimensions in mm RECOMMENDED LAND PATTERN 0.45 0.30 0.05 0.20 0.45 0.20 0.70 0.30 Dimensions in mm RoHS Directive Compliant Product: See the following for more details related to RoHS Directive compliant products. http://product.tdk.com/en/environment/rohs/ • All specifications are subject to change without notice. • Before using these products, be sure to request the delivery specifications. 20150427 / rf_balun_hhm1918a2_en.fm RF Components HHM1918A2 ELECTRICAL CHARACTERISTICS Frequency Range (MHz) Item Unbalanced Port Characteristic Impedance (:) Balanced Port Characteristic Impedance (:) Return Loss at Unbalanced Port (dB) Phase Balance (deg.) Amplitude Balance (dB) Insertion Loss (dB) 2300 to 2700 2300 to 2700 2300 to 2700 2300 to 2700 Min. Typ. Max. 10 165 –1.5 — 50 (Nominal) 100 (Nominal) — — — — — 195 1.5 0.8 TEMPERATURE RANGE Operating temperature （°C） –40 to +85 Storage temperature （°C） –40 to +85 • All specifications are subject to change without notice. • Before using these products, be sure to request the delivery specifications. 20150427 / rf_balun_hhm1918a2_en.fm RF Components HHM1918A2 FREQUENCY CHARACTERISTICS INSERTION LOSS AMPLITUDE BALANCE 0.0 4 Amplitude Balance(dB) Insertion Loss(dB) 0.5 1.0 1.5 2.0 2 0 –2 2.5 –4 3.0 1000 1500 2000 2500 Frequency(MHz) 3000 3500 4000 1000 0 200 5 195 10 190 15 20 25 3000 3500 4000 2000 2500 Frequency(MHz) 3000 3500 4000 180 175 170 35 165 1500 2500 Frequency(MHz) 185 30 40 1000 2000 PHASE BALANCE Phase Balance(deg) Return Loss(dB) RETURN LOSS 1500 2000 2500 Frequency(MHz) 3000 3500 4000 160 1000 1500 • All specifications are subject to change without notice. • Before using these products, be sure to request the delivery specifications. 20150427 / rf_balun_hhm1918a2_en.fm RF Components HHM1918A2 RECOMMENDED REFLOW PROFILE Soaking Working Soldering Peak T: Temperature T4 T5 T3 T2 T4 T3 t3 T1 t1 t2 t: Time Soaking Temp. T1 150°C T2 180°C Time t1 60 to 120s Working Temp. T3 230°C Time t2 more than 30s Soldering Peak Temp. T4 247 to 253°C Time t3 within 10s Temp. T5 260°C max. • All specifications are subject to change without notice. • Before using these products, be sure to request the delivery specifications. 20150427 / rf_balun_hhm1918a2_en.fm RF Components REMINDERS FOR USING THESE PRODUCTS Before using these products, be sure to request the delivery specifications. SAFETY REMINDERS Please pay sufficient attention to the warnings for safe designing when using these products. REMINDERS The products listed on this catalog are intended for use in general electronic equipment (AV equipment, telecommunications equipment, home appliances, amusement equipment, computer equipment, personal equipment, office equipment, measurement equipment, industrial robots) under a normal operation and use condition. The products are not designed or warranted to meet the requirements of the applications listed below, whose performance and/or quality require a more stringent level of safety or reliability, or whose failure, malfunction or trouble could cause serious damage to society, person or property. Please understand that we are not responsible for any damage or liability caused by use of the products in any of the applications below or for any other use exceeding the range or conditions set forth in this catalog. (1) Aerospace/Aviation equipment (2) Transportation equipment (cars, electric trains, ships, etc.) (3) Medical equipment (4) Power-generation control equipment (5) Atomic energy-related equipment (6) Seabed equipment (7) Transportation control equipment (8) Public information-processing equipment (9) Military equipment (10) Electric heating apparatus, burning equipment (11) Disaster prevention/crime prevention equipment (12) Safety equipment (13) Other applications that are not considered general-purpose applications When using this product in general-purpose applications, you are kindly requested to take into consideration securing protection circuit/ equipment or providing backup circuits, etc., to ensure higher safety. • All specifications are subject to change without notice. • Before using these products, be sure to request the delivery specifications. 20150427 / rf_balun_hhm1918a2_en.fm