BB172X

BB172 VHF variable capacitance diode Rev. 2 3 December 2013 Product data sheet 1. Product profile 1.1 General description The BB172 is a variable capacitance diode, fabricated in planar technology, and encapsulated in the SOD323 (SC-76) very small SMD plastic package. 1.2 Features and benefits Excellent linearity Very small SMD plastic package C = 2.6 pF C to C ratio = 15 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 V P 1 The marking bar indicates the cathode. 3. Ordering information 3.1 Package information Table 2. Package information Type number Package Name Description Version BB172 SC-76 plastic surface-mounted package 2 leads SOD323BB172 NXP Semiconductors VHF variable capacitance diode 3.2 Ordering information Table 3. Ordering options Type number Orderable Package Packing method Minimum part number order quantity BB172 BB172X SC-76 tape and reel 3000 4. Marking Table 4. Marking Type number Marking code BB172 4K 5. Limiting values Table 5. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol Parameter Conditions Min Max Unit V reverse voltage - 32 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 6. 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 = 100 MHz C = 30 pF - 0.65 0.8 s d 2 C diode capacitance f = 1 MHz d V = 1 V 34.65 - 42.35 pF R V = 28 V 2.361 2.6 2.754 pF R C /C diode capacitance ratio f=1MHz - 1.3 - d(1V) d(2V) (1Vto2V) C /C diode capacitance ratio f=1MHz 13.5 15 - d(1V) d(28V) (1Vto28V) C /C diode capacitance ratio f=1MHz - 1.08 - d(25V) d(28V) (25 V to 28 V) 1 See Figure 2. 2 See Figure 1 and Figure 3. BB172 All information provided in this document is subject to legal disclaimers. NXP B.V. 2013. All rights reserved. Product data sheet Rev. 2 3 December 2013 2 of 8