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1897

STMicroelectronics
Part Number 1897
Manufacturer STMicroelectronics
Description RF & MICROWAVE TRANSISTORS 1.65 GHz SATCOM APPLICATIONS
Published Mar 23, 2005
Detailed Description SD1897 RF & MICROWAVE TRANSISTORS 1.65 GHz SATCOM APPLICATIONS . . . . . 1.65 GHz 28 VOLTS CLASS C OPERATION COMMON BA...
Datasheet PDF File 1897 PDF File

1897
1897

Overview
SD1897 RF & MICROWAVE TRANSISTORS 1.
65 GHz SATCOM APPLICATIONS .
.
.
.
.
1.
65 GHz 28 VOLTS CLASS C OPERATION COMMON BASE P OUT = 10 W MIN.
WITH 11.
0 dB GAIN .
250 x .
320 2LFL (M170) epoxy sealed ORDER CODE SD1897 BRANDING 1897 PIN CONNECTION DESCRIPTION The SD1897 is a 28 V Class C silicon NPN transistor designed for INMARSAT and other 1.
65 GHz SATCOM applications.
A gold metallized emitterballasted die geometry is employed providing high gain and efficiency while ensuring long term reliability and ruggedness under severe operating conditions.
SD1897 is packaged in a cost-effective epoxy sealed housing.
ABSOLUTE MAXIMUM RATINGS (T case = 25 ° C) Symbol Parameter Value Unit 1.
Collector 2.
Emitter 3.
Base VCBO VCEO VEBO IC PDISS TJ T STG Collector-Base Voltage Collector-Emitter Voltage Emitter-Base Voltage Device Current Power Dissipation Junction Temperature Storage Temperature 45 15 3.
5 2.
3 29 +200 − 65 to +150 V V V A W °C °C THERMAL DATA RTH(j-c) July 1993 Junction-Case Thermal Resistance 6.
0 °C/W 1/4 SD1897 ELECTRICAL SPECIFICATIONS (T case = 25 ° C) STATIC Symbol Test Conditions Value Min.
Typ.
Max.
Unit BVCBO BVCEO BVEBO hFE DYNAMIC Symbol IC = 3mA IC = 3mA IE = 3mA VCE = 5V IE = 0mA IB = 0mA IC = 0mA IC = 600mA 45 12 3.
5 15 — — — — — — — 150 V V V — Test Conditions Value Min.
Typ.
Max.
Unit POUT GP ηc f = 1.
65 GHz f = 1.
65 GHz f = 1.
65 GHz PIN = 0.
8 W PIN = 0.
8 W PIN = 0.
8 W VCE = 28 V VCE = 28 V VCE = 28 V 10 11 48 — — — — — — W dB % TYPICAL PERFORMANCE POWER OUTPUT vs POWER INPUT EFFICIENCY vs POWER INPUT 2/4 SD1897 IMPEDANCE DATA TYPICAL INPUT IMPEDANCE ZIN FREQ.
1600 MHz TYPICAL COLLECTOR LOAD IMPEDANCE ZCL 1650 MHz POUT = 10 W VCE = 28 V PIN = 0.
8 W ZIN (Ω) 22.
0 + j 23.
0 28.
0 + j 18.
0 ZCL (Ω) 3.
1 + j 4.
0 3.
0 + j 2.
0 TEST CIRCUIT C1, C2 : 0.
4 - 2.
5pF Johanson Variable Capacitor C3 : 100pF Chip Capacitor ATC C4 : Suppression Filters CDI 9900381-6004 L1, L2 : 4 Turns, Choke #28 AWG .
080” I.
D.
Substrate: Er = 10.
2, Hei...


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