BB174X

BB174 VHF variable capacitance diode Rev. 1 25 March 2013 Product data sheet 1. Product profile 1.1 General description The BB174 is a variable capacitance diode, fabricated in planar technology, and encapsulated in the SOD523 (SC-79) ultra small SMD plastic package. 1.2 Features and benefits Excellent linearity Ultra small SMD plastic package C = 2.1 pF C to C ratio = 9 d(28V) d(1V) d(28V) Low series resistance 1.3 Applications Voltage Controlled Oscillators (VCO) 2. Pinning information Table 1. Pinning Pin Description Simplified outline Symbol 1 1 cathode 2 anode 1 2 sym008 1 The marking bar indicates the cathode. 3. Ordering information Table 2. Ordering information Type number Package Name Description Version BB174 SC-79 plastic surface-mounted package 2 leads SOD523BB174 NXP Semiconductors VHF variable capacitance diode 4. Marking Table 3. Marking Type number Marking code BB174 CF 5. Limiting values Table 4. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol Parameter Conditions Min Max Unit V reverse voltage - 30 V R peak value in series with a 10 k resistor - 35 V I forward current - 20 mA F T storage temperature 55 +150 C stg T junction temperature 55 +125 C j 6. Characteristics Table 5. Characteristics T = 25 C unless otherwise specified. j Symbol Parameter Conditions Min Typ Max Unit 1 I reverse current V =30V -- 10 nA R R 1 V =30V T =85 C -- 200 nA R j r diode series resistance f = 470 MHz C = 9 pF - 0.6 0.75 s d 2 C diode capacitance f = 1 MHz d V = 1 V 18.22 - 21.26 pF R V = 28 V 1.951 2.1 2.225 pF R C /C diode capacitance ratio f=1MHz - 1.27 - d(1V) d(2V) (1Vto2V) C /C diode capacitance ratio f = 1 MHz 8.45 9 10.9 d(1V) d(28V) (1Vto28V) C /C diode capacitance ratio f=1MHz - 1.05 - d(25V) d(28V) (25 V to 28 V) 1 See Figure 2. 2 See Figure 1 and Figure 3. BB174 All information provided in this document is subject to legal disclaimers. NXP B.V. 2013. All rights reserved. Product data sheet Rev. 1 25 March 2013 2 of 8