140 COMMERCE DRIVE MONTGOMERYVILLE, PA 18936-1013 PHONE: (215) 631-9840 FAX: (215) 631-9855
SD1444
RF & MICROWAVE TRANS...
140 COMMERCE DRIVE MONTGOMERYVILLE, PA 18936-1013 PHONE: (215) 631-9840 FAX: (215) 631-9855
SD1444
RF & MICROWAVE
TRANSISTORS 450-512MHz CLASS C MOBILE APPLICATIONS
Features
470 MHz 12.5 VOLTS POUT = 4.0 WATTS GP = 12.0 dB MINIMUM COMMON EMITTER
1. Emitter 2. Base 3. Collector
DESCRIPTION:
The SD1444 is a 12.5V epitaxial silicon
NPN planar
transistor designed primarily for UHF communications. This device is packaged in a grounded emitter TO-39 package for increased power gain and optimum heat dissipation.
TO-39
ABSOLUTE MAXIMUM RATINGS (Tcase = 25° C)
Symbol
VCBO VCEO VEBO IC Ptot T STG TJ
Parameter
Collector-Base Voltage Collector-Emitter Voltage Emitter – Base Voltage Collector Current Total Power Dissipation Storage Temperature Junction Temperature
Value
36.0 16.0 4.0 0.40 5.0 -65 + 200 +200
Unit
V V V A W °C °C
THERMAL DATA
RTH(J-C) Junction-case Thermal Resistance 35.0 ° C/W
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SD1444
ELECTRICAL SPECIFICATIONS (Tcase = 25 ° C)
Symbol
BVCES BVCEO BVEBO ICBO HFE IC = 50 mA IC = 50 mA IE = 1 mA VCB = 15 V VCE = 5 V
STATIC
Test Conditions
VBE = 0 IB = 0 IC = 0 IE = 0 IC = 50 mA
Min.
36 16 4.0 --20
Value Typ.
-----------
Max.
------1.0 200
Unit
V V V mA ---
DYNAMIC
Symbol
POUT GPE Cob f = 470 MHz f = 470 MHz VCE = 15.0 V
Test Conditions...