E-TA THERMAL VARIABLE ATTENUATORS ■ FEATURES ■ APPLICATIONS OFlat VSWR characteristic to the temperature change. OLinear attenuation characteristic to temperature fluctuation. ORoHS compliant. O Temperature compensation of microwave high power amplifier. ■ SPECIFICATIONS OElectrical characteristics E-TA3216 E-TA2012 1, 2, 3, 4, 5 dB at 25 °C 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 dB at 25 °C DC ~ 3 GHz : +0.5 dB, DC ~ 1 GHz : -0.5 dB 1 ~ 3 GHz : -1.0dB (at 25 °C, 50 Ω load) ± 0.5 dB (at 25 °C, 50 Ω load) Attenuation Tolerance 50 Ω Impedance DC ~ 2 GHz : Less than 1.3 2 ~ 3 GHz : Less than 1.7 (at 25 °C) VSWR Temperature Coefficient Less than 1.3 (at 25 °C) N5 〜 N8 at 1 GHz： N1 〜 N8 at 1 GHz： Please refer to the chart of “Example of Attenuation vs. Temperature” Please refer to the chart of “Example of Attenuation vs. Temperature” DC ~ 3 GHz Frequency Range 100 mW Power Rating 63 mW Operating Temperature Range – 40 °C ~ +100 °C OTemperature Characteristics TCA : Temperature Coefficient of Attenuation N1 ~ N8 (dB/dB/°C) N1 ; – 0.0119 N4 ; – 0.0047 N7 ; – 0.0026 N2 ; – 0.0088 N5 ; – 0.0041 N8 ; – 0.0019 N3 ; – 0.0062 N6 ; – 0.0035 Note. Temperature coefficient of E-TA3216 is N5 ~ N8 and E-TA2012 is N1 ~ N8. ■ PART NUMBER DESIGNATION E-TA2012 T 1 dB N8 Series name and size E-TA3216, E-TA2012 Form of packaging T : Taping (1000 pcs/reel) Blank : Bulk (100 pcs/in plastic bags) Temperature Coefficient of Attenuation (N1, N2, N3, N4, N5, N6, N7, N8) Attenuation [dB] (1, 2, 3, 4, 5, 6, 7, 8, 9, 10) E-TA THERMAL VARIABLE ATTENUATORS ■ OUTLINE DIMENSIONS O E-TA3216 Unless otherwise specified, tolerance : ± 0.2 (Unit : mm) 0.15 2.0 Side view 0.45 ①, ② In/ Out terminal Date code ② 1.6 0.3 マーカ Marker 0.15 ① ③ Top view ④ ③, ④ Ground terminal 0.7 0.45 Side view 0.15 Date code Top view 0.2 0.9 1.0 ①, ② In/ Out terminal ① ② マーカ Marker 1.25 0.8 1.0 max 1.0 0.25 3.2 0.2 O E-TA2012 Unless otherwise specified, tolerance : ± 0.2 (Unit : mm) ③ Unit marked on this surface ④ ③, ④ Ground terminal Unit marked on this surface ＜ Marking ＞ ODate code (2 digits) 9 A Month(A~H,J,Y,L,M) Year（One last digit) OModel code (3 digits) 1 N1 Attenuation(1~10dB) Temperature Coefficient of attenuation(N1~N8) E-TA THERMAL VARIABLE ATTENUATORS ■ RECOMMENDED PAD OUTLINE DIMENSIONS Unless otherwise specified, tolerance : ± 0.3 (Unit : mm) O E-TA3216 O E-TA2012 2.3 3.0 0.6 0.8 1.2 0.7 0.8 1.9 0 0.7 0.55 2.0 0 0.5 0.95 0.7 0.55 1.2 Note) The zero point is center of mounting ■ EXAMPLE OF ATTENUATION VS. TEMPERATURE : 3 dB ● E-TA2012 3 dB Attenuation vs. Temperature 3dB N* 5.5 N1 5.0 N2 4.5 N3 4.0 N4 3.5 N5 3.0 N6 2.5 N7 2.0 N8 1.5 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 E-TA THERMAL VARIABLE ATTENUATORS ■ ENVIRONMENTAL CHARACTERISTICS Test item Test conditions Specifications A short time overload voltage Apply the rated voltage of 2.5 times for 5 sec. Attenuation ± 0.1 dB Load life 70 ± 3 °C, Apply rated voltage for 90 minutes followed by 30 minutes Intermission. This cycle is repeated for 1000 hours. Attenuation ± 0.2 dB 60 ± 2 °C, 90 ~ 95 %RH, Apply rated voltage for 90 minutes followed by 30 minutes Intermission. This cycle is repeated for 1000 hours. Attenuation ± 0.2 dB – 40 °C ~ 100 °C (0.5 h), 5 cycles Attenuation ± 0.1 dB Thermal shock Vibration （Vibration）10 〜 55 Hz、 （Amplitude）1.5 mm、 10-55-10 Hz/minutes、xyz 2h each Attenuation ± 0.1 dB Soldering heat Peak temperature 255 °C, two times maximum Attenuation ± 0.1 dB Solderability 245 ± 5 °C (lead free), 3 ± 0.5 s 95 % or more of the immersed area should be adequately wetted. ■ REFLOW PROFILE FOR SOLDERING HEAT EVALUATION (°C) 250 Peak : 250 +5 0 °C Temperature Over 230 °C 200 150 180 °C Pre Heating Zone 150 °C 90 ± 30 s 100 50 30 ± 10 s Heating time Soldering Zone Reflow : two times maximum ■ PACKAGING SPECIFICATIONS OTaping packaging specifications 7DSLQJZLOOEHDFFHSWHGIRUXQLWVRISFVSHUUHHO 2UGHUVZLOOEHDFFHSWHGIRUXQLWVRISFVLH SFVHWF 7DSLQJYHUVLRQLVER[HGZLWKRQHUHHO SFV 0D[LPXPQXPEHURIFRQVHFXWLYHPLVVLQJSLHFHV OBulk pack specifications 8QLWRIEXONLQDSODVWLFEDJSDFNDJHLVSFVSHUSDFN %R[LQJRIEXONLQDSODVWLFEDJLVSHUIRUPHGZLWKSFV SHUER[ E-TA THERMAL VARIABLE ATTENUATORS ■ CAUTION &RQVWUXFWLRQ 7KHVWUXFWXUHRI(7$DQG(7$DUHGHVLJQHGWR ZLWKVWDQGIOX[DQGFOHDQLQJVROYHQWVXVHGLQWKHVROGHULQJ DQG FOHDQLQJ SURFHVV 7KLV VHDOHG VWUXFWXUH LV DOVR HIIHFWLYHIRUGXVWDQGPRLVWXUHDVZHOOEXWLWVFDSDELOLW\LV QRWOLPLWOHVVGXHWRLQVLGHPRYLQJSDUWV )RU WKH ERWK SURGXFWV WKH IROORZLQJ FRQGLWLRQV DUH QRW UHFRPPHQGHG ①(QYLURQPHQWDO DLU ZLWK VXOSKLGH JDV FRUURVLYH JDV RU UHGXFLQJJDV ②5DSLGFRROLQJRIVROYHQWV ③/RQJ WLPH GDPSLQJ LQWR VROYHQWV HVSHFLDOO\ DW KLJK WHPSHUDWXUH ④(QYLURQPHQWDODLUZLWKKLJKKXPLGLW\ 1RWHVIRUVWRUDJH &DUHIXO DWWHQWLRQ PXVW EH SDLG ZKHQ WKH FRPSRQHQWV DUH VWRUHG (QYLURQPHQWDO WHPSHUDWXUH KXPLGLW\ HWF PLJKW DIIHFW WKH VROGHU DELOLW\ RI WKH WHUPLQDOV DQG WKH IXQFWLRQ RI WKH SDFNDJH/LVWHGEHORZDUHQRWHVWREHREVHUYHG ①8QGHU H[WUHPHO\ KLJK WHPSHUDWXUH DQG KXPLG FRQGL WLRQVWKHTXDOLW\GHFD\RIWKHSDFNDJHPDWHULDOVZLOOEH DFFHOHUDWHG ②,WLVUHFRPPHQGHGWRVWRUHWKHFRPSRQHQWVLQWKHURRP DW WKH WHPSHUDWXUH EHORZ & DQG WKH UHODWLYH KXPLGLW\EHORZ ③7KHHQYLURQPHQWDODLUPXVWEHIUHHIURPFRUURVLYHJDV VXFKDVVXOSKLGHJDV ④([SRVXUHWRWKHGLUHFWVXQOLJKWDQGGXVWPXVWEHDYRLG HG ⑤+DQGOHFDUHIXOO\WRDYRLGGHIRUPDWLRQRIWHUPLQDOV ⑥3OHDVHXVHWKHSURGXFWVZLWKLQRQH\HDUIURPWKHGHOLY HU\ ⑦3OHDVHGRQRWRSHQWKHVPDOOHVWXQLWRISDFNDJHEHIRUH use. Note1. Specifications are subject to change without notice. Specifications in this catalog are reference.