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BB178LX Datasheet(PDF) 2 Page - NXP Semiconductors |
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BB178LX Datasheet(HTML) 2 Page - NXP Semiconductors |
2 / 7 page BB178LX_2 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 02 — 12 February 2009 2 of 7 NXP Semiconductors BB178LX VHF variable capacitance diode 4. Marking 5. Limiting values 6. Characteristics Table 3. Marking codes Type number Marking code BB178LX L3 Table 4. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol Parameter Conditions Min Max Unit VR reverse voltage - 32 V IF forward current - 20 mA Tstg storage temperature −55 +150 °C Tj junction temperature −55 +125 °C Table 5. Characteristics Tj = 25 °C unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit IR reverse current see Figure 3 VR =30V - - 10 nA VR =30V; Tj =85 °C - - 200 nA rs diode series resistance f = 100 MHz at Cd =30pF; see Figure 2 - 0.7 - Ω Cd diode capacitance f = 1 MHz; see Figure 1 and Figure 4 VR = 1 V 34.65 - 42.35 pF VR = 28 V 2.36 2.6 2.75 pF Cd(1V)/Cd(2V) diode capacitance ratio (1 V to 2 V) f = 1 MHz - 1.3 - Cd(1V)/Cd(28V) diode capacitance ratio (1 V to 28 V) f = 1 MHz 13.5 15 - Cd(25V)/Cd(28V) diode capacitance ratio (25 V to 28 V) f = 1 MHz - 1.08 - ∆C d/Cd diode capacitance matching VR = 1 V to 28 V; in sequence of 5 diodes (gliding) --2 % |
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