STMicroelectronics SD1457
The SD1457 is a 28 V gold metallized epitaxial silicon NPN planar transistor designed for FM VHF broadcast transmitters. This device utlizes diffused emitter resistors to achieve infinite VSWR at rated operating conditions.| Part No. | SD1457 |
|---|---|
| Datasheet | SD1457 Download |
| Manufacturer |  STMicroelectronics |
| Description | RF & MICROWAVE TRANSISTORS |
| Buy | Stock & Price |
APPLICATIONS
. . . . . . 108 MHz 28 VOLTS EFFICIENCY 75% COMMON EMITTER GOLD METALLIZATION P OUT = 75 W MIN. WITH 10.0 dB GAIN .500 4LFL (M174) epoxy sealed ORDER CODE SD1457 BRANDING SD1457 PIN CONNECTIONDESCRIPTION
ABSOLUTE MAXIMUM RATINGS
(T case = 25 ° C) Symbol Parameter Value Unit 1. Collector 2. Emitter 3. Base 4. Emitter VCBO VCEO VCES VEBO IC PDISS TJ T STG Collector-Base Voltage Collector-Emitter Voltage Collector-Emitter Voltage Emitter-Base Voltage Device Current Power Dissipation Junction Temperature Storage Temperature 65 30 60 4.0 10 100 +200 − 65 to +150 V V V V A W °C °C °C/W 1/5 THERMAL DATA RTH(j-c) November 1992 Junction-Case Thermal Resistance 1.5 SD1457ELECTRICAL SPECIFICATIONS
(T case = 25 ° C) STATIC Symbol Test Conditions Value Min. Typ. Max. Unit BVCBO BVCER BVCEO BVEBO hFE DYNAMIC IC = 50mA IC = 50mA IC = 50mA IE = 10mA VCE = 5V IE = 0mA RBE = 10Ω IB = 0mA IC = 0mA IC = 1A 65 60 30 4.0 20 — — — — — — — — — 150 V V V V — Symbol Test Conditions Value Min. Typ.
