KV1780 3V Series VCD for FM Tuning 3VFMVCD Feature Included Twin Element 1 Very Small Tolerance of Element Being Next Device To Each Other Very Low Voltage Operation: VOP=0.5 to 3.0V : VOP=0.5~3.0V Excellent Linearity of the C-V Curve C-V Extra Large Capacitance Ratio: A=3.15 to : A=3.15~ Very Small Series Resistance: RS= to 0.35 : RS= ~0.35 VR=18V Reverse Voltage VR=18V Forward Current IF=50mA IF=50mA TOP=-55~+85C Operating Temp. Range TOP=-55 to +85C Electrical Characteristics Part Name VR.MAX Capacitance(pF) Capacitance Ratio RS.MAX (V) Min. Typ. Max. VR(V) Min. Typ. Max. VR(V) KV1780 18 84.67 90.20 95.64 0.5 3.15 3.64 0.5/ 0.35@1.5V,100MHz 21.00 24.80 28.59 3 3 * The value of capacitance is the average of 2 back to back type diodes. Back to Back Type 2 * Diode Capacitance measured with Agilent 4279A or equivalent instruments (at OSC level 205mVrms) Agilent 4279AOSC 205mVrms * Resistance meter is Agilent 4291B or equivalent instruments. Agilent 4291B * The tolerance of element that is next to each other in same reel is within 5% at C0.5 C3. C0.5C3 5% Classification C Rank1 C0.5.MIN(pF) 84.67 C0.5.MAX(pF) 88.77 Rank2 87.88 92.14 Rank3 91.22 95.64 Ordering Guide, Pin Layout, Marking Part Name Ordering Name Pin Layout Marking 3 KV1780 KV1780STL-G C8 1 Page 30 2 Description Order Size KV1780: Part Name S: SOT23-3 Package TL: Tape&Reel, Left -G: PB-Free 3,000 pcs. /Reel 2011 AUTUMN Typical Characteristics Reverse Current vs. Reverse Voltage f=1MHz, TA=25C C, Capacitance(pF) 10 0.0 1.0 2.0 3.0 VR, Reverse Voltage(V) Q vs. Reverse Voltage Q 4.0 100 1.0 2.0 3.0 VR, Reverse Voltage(V) 4.0 C(TA)/C(25C) vs. Reverse Voltage C(TA)/C(25C) 1.06 1.05 1.04 1.03 1.02 1.01 1.00 0.99 0.98 0.97 0.96 0.95 0.94 0.93 0.0 f=1MHz, TA=-55 to +85C TA =+ 85C TA =+ 55C TA=+25C 2011 AUTUMN TA=-15C TA=-55C 1.0 2.0 3.0 VR, Reverse Voltage(V) 10p 55C T A=+ T A=+ 0.5 25C VR=1.5V, TA=25C 4.0 0.1 50M 500M f, Frequency(Hz) Capacitance Temp. Coefficient vs. Reverse Voltage C/TA, Temp. Coefficient(ppm/C) Q MHz f=200 10 0.0 85C T A=+ RS, Series Resistance() Hz f=70M MHz f=100 100p 1p 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 VR, Reverse Voltage(V) Series Resistance vs. Frequency TA=25C 1000 C(TA)/C(25C) 1n IR, Reverse Current(A) 100 TA=+25, +55, +85C 1000 100 0.0 f=1MHz, TA=25C 1.0 2.0 3.0 VR, Reverse Voltage(V) 4.0 Page 31 4 VCD for FM Tuning Capacitance vs. Reverse Voltage