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| available on tape and reel for pick and place manufacturing. usa/canada: toll free: europe : (315) 432-8909 (800) 544-2414 +44 2392-232392 model 3A525 rev. a balun transformers 50 ? to 25 ? balanced description the 3A525 is a low profile balanced to unbalanced transformer in an easy to use surface mount package covering japanese pdc, dcs and pcs receive push-pull amplifier and mixer applications. the 3A525 has an unbalanced impedance of 50 ? and a balanced port impedances of 25 ? to ground with 50 ? balance between outputs. this eases the matching of the push-pull amplifier?s power transistors which have low impedance levels. the output ports have equal amplitude (-3 db) with 180 phase differential. the 3A525 is available on tape and reel for pick and place high volume manufacturing. electrical specifications*** frequency unbalanced port impedance balanced port impedance* return loss insertion loss** ghz ohms ohms db min db max 1.5 ? 1.9 50 25 15 0.35 amplitude balance phase balance power handling jc operating temp. db max degrees max watts oc / watt oc features: ? 1.5 ? 1.9 ghz ? 180 transformer ? 50 ohm to 2 x 25 ohm ? low insertion loss ? high power ? input to output dc isolation ? surface mountable ? tape & reel ? convenient package 0.40 180 5.0 150 7.2 -55 to +85 ***specification based on performanc e of unit properly installed on microstrip printed circuit boards with 50 ? nominal impedance. specifications subject to change without notice. **insertion loss excludes reflected power. * 25 ? reference to ground outline drawing 3 a 5 2 5 r e v a m e c h a n i c a l o u t l i n e d i m e n s i o n s a r e i n i n c h e s [ m i l l i m e t e r s ] .076 .008 [1.93 0.20 ] side view .480 .010 [12.19 0.25 ] .650 .010 [16.51 0.25 ] pin 2 pin 3 pin 1 gnd denotes array number top view (near-side) .038 .008 [0.98 0.20 ] .035 .004 typ [0.89 0.10 ] gnd .130 .008 [3.30 0.20 ] pin 3 .027 .004 [0.69 0.10 ] pin 2 .339 .008 [8.62 0.20 ] .121 .004 [3.07 0.10 ] .062 .008 [1.56 0.20 ] .027 .004 [0.69 0.10 ] bottom view (far-side) pin 1
usa/canada: toll free: europe: (315) 432-8909 (800) 544-2414 +44 2392-232392 available on tape and reel for pick and place manufacturing. model 3A525 rev. a typical performance: 1200 mhz. to 2200 mhz. amplitude balance 3A525 -0.5 -0.4 -0.3 -0.2 -0.1 0 0.1 0.2 0.3 0.4 0.5 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 frequency [mhz] amplitude balance [db] return loss 3A525 -40 -35 -30 -25 -20 -15 -10 -5 0 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 frequency [mhz] return loss [db] insertion loss 3A525 -0.5 -0.45 -0.4 -0.35 -0.3 -0.25 -0.2 -0.15 -0.1 -0.05 0 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 frequency [mhz] insertion loss [db] phase balance 3A525 -190 -188 -186 -184 -182 -180 -178 -176 -174 -172 -170 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 frequency [mhz] phase balance [degrees] pin configuration mounting configuration dimensions are in inches [millimeters] 3A525 rev a mounting footprint to ensure proper electric al and thermal performance there must be a ground plane with 100% solder connection underneath the part .121 [3.07] .070 [1.78] .380 [9.65] .049 [1.24] .130 [3.30] .390 [9.91] .210 [5.32] multiple plated thru holes to ground .034 typ [0.86] 2 places 25 transmission line referenced to gnd 50 transmission line |
Price & Availability of 3A525
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