ZV950V2, ZV952V2, ZV953V2, ZMDC953, FSD273
Device Description
A range of silicon varactor diodes for use in frequency control and
filtering. Featuring closely controlled CV characteristics, low voltage
operation and high Q. Low reverse current ensures very low phase
noiseperformance.Thesepartscanbeusedwithcontrolvoltagesfrom
0.5V to 2.5V, making them ideal for 3 volt systems. Available in
miniature surface mount packages.
Features
•Close tolerance C-V characteristics
•Tuning from 0.5 to 2.5 Volts to suit 3 volt systems
•Low IR(typically 10pA)
•Excellent phase noise performance
•High Q at low voltage
•Miniature surface mount packages
•Band selection for DAB applications - FSD273
Applications
•VCXO and TCXO
•Wireless communications
•Pagers
•Mobile radio
•Digital Radio receivers
950 series
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1
SILICON LOW VOLTAGE HYPERABRUPT VARACTOR DIODES
950 series
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PARAMETER SYMBOL MAX UNIT
Reverse voltage VR12 V
Forward current IF100 mA
Power dissipation at Tamb = 25⬚C SOD523 Ptot 250 mW
Power dissipation at Tamb = 25⬚C SOT323 Ptot 300 mW
ABSOLUTE MAXIMUM RATINGS
PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Reverse breakdown voltage IR= 10uA 12 V
Reverse voltage leakage VR= 8V 0.010 20 nA
ELECTRICAL CHARACTERISTICS at Tamb = 25°C
PART CAPACITANCE pF
VR=0.5V, f=1MHz
CAPACITANCE pF
VR=1.5V, f=1MHz
CAPACITANCE
RATIO C0.5 /C
2.5
f=1MHz
Minimum Q
VR=0.5V
f=50MHz
Min Min Max Min
ZV950V2 9.5 6.3 7.8 2.0 250
ZV952V2 19 12.7 15.7 2.0 250
ZV953V2 45 30 37 2.0 200
ZMDC953(DUAL) 45 30 37 2.0 250
TUNING CHARACTERISTICS at Tamb =25C
ZMDC953 is available banded to tighter capacitance range. This product has the order code FSD273TA.
Measured at VR=1.5V the bands are
Band A = 30.0 to 32.5
Band B = 32.3 to 34.7
Band C = 34.5 to 37.0
Product is supplied in reels. A banded reel will only contain a single band. Shipments containing several reels
may have reels in different bands. It is not possible to supply a specific band as processing affects which bands
are available
950 series
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0.1 1 10
1
10
100
10 100 1000
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0123456
0.92
0.94
0.96
0.98
1.00
1.02
1.04
1.06
1.08
0123456
0
200
400
600
800
1000
024681012
1
10
100
1000
ZV953V2
ZMDC953
ZV952V2
Capacitance v Reverse Voltage
Tj= 25°C
f=1MHz ZV950V2
CJCapacitance (pF)
VRReverse Voltage (V)
ZMDC953
ZV952V2
ZV950V2
Series Resistance v Frequency
Tj= 25°C
ZV953V2
RSSeries Resistance(⍀)
Frequency (MHz)
Tj= -15°C
Tj= -55°C
Tj= 85°C
Normalised Capacitance v Voltage
Tj= 55°C
Tj= 25°C
Normalised Capacitance
VRReverse Voltage (V) CJTemperature Coefficient v VR
Tj= -55°C to +85°C
f=1MHz
DCJ/T(ppm/°C)
VRReverse Voltage (V)
+85°C
+55°C
+25°C
Leakage v Reverse Voltage
IRReverse Leakage (pA)
VRReverse Voltage (V)
TYPICAL CHARACTERISTICS
ORDER CODES AND PART MARKING
FSD273 is a band selected version of the ZMDC953. Product is supplied in reels containing a
single capacitance band. Shipments of several reels may contain reels of different bands. It is
notpossible forcustomers tospecify aparticular band,because availabilityis processdepend-
ent.
950 series
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SOT323SOD523
ORDER CODE PART
MARK ORDER CODE PART
MARK
ZV950V2TA 50
ZV952V2TA 52
ZV953V2TA 53 ZMDC953TA 54
FSD273TA 55 Band A
FSD273TA 56 Band B
FSD273TA 57 Band C
REEL CODE REEL SIZE TAPE WIDTH QUANTITY PER REEL
TA 7 inch (180mm) 8mm 3000
TAPE AND REEL INFORMATION
950 series
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SOT323 PACKAGE DIMENSIONS
DIM Millimetres Inches
MIN MAX MIN MAX
A 1.8 2.2 0.071 0.087
B 1.15 1.35 0.045 0.053
C 0.8 1.0 0.031 0.039
D 0.2 0.4 0.008 0.016
F 0.1 0.25 0.004 0.01
G 1.2 1.4 0.047 0.055
K - 0.1 - 0.004
L 2.0 2.2 0.079 0.087
N 0.60 0.70 0.023 0.028
MILLIMETRES
MIN. MAX
Aᎏ0.800
A1 0.000 0.100
A2 0.600 0.800
b1 0.160 0.300
c 0.080 0.220
D 0.700 0.900
E 1.500 1.700
E1 1.100 1.300
L 0.200 0.400
L1 0.170 0.230
⍜1⬚4⬚10⬚
SOD523 PACKAGE DIMENSIONS
Zetex plc
Fields New Road
Chadderton
Oldham, OL9 8NP
United Kingdom
Telephone (44) 161 622 4422
Fax: (44) 161 622 4420
Zetex GmbH
Streitfeldstraße 19
D-81673 München
Germany
Telefon: (49) 89 45 49 49 0
Fax: (49) 89 45 49 49 49
Zetex Inc
700 Veterans Memorial Hwy
Hauppauge, NY11788
USA
Telephone: (631) 360 2222
Fax: (631) 360 8222
Zetex (Asia) Ltd
3701-04 Metroplaza, Tower 1
Hing Fong Road
Kwai Fong
Hong Kong
Telephone: (852) 26100 611
Fax: (852) 24250 494
These offices are supported by agents and distributors in major countries world-wide.
Thispublication isissued toprovide outlineinformation onlywhich(unlessagreedbytheCompanyinwriting)maynotbeused,appliedorreproduced
for any purpose or form part of any order or contract or be regarded as a representation relating to the products or services concerned. The Company
reserves the right to alter without notice the specification, design, price or conditions of supply of any product or service.
For the latest product information, log on to www.zetex.com
© Zetex plc 2001
950 series
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