BLF248
BLF248 is VHF push-pull power MOS transistor manufactured by NXP Semiconductors.
FEATURES
- High power gain
- Easy power control
- Good thermal stability
- Gold metallization ensures excellent reliability. DESCRIPTION
5 5 3
Top view
PIN CONFIGURATION
1 halfpage
2 d2 g2 g1 d1
MBB157 s
Dual push-pull silicon N-channel enhancement mode vertical D-MOS transistor, designed for large signal amplifier applications in the VHF frequency range. The transistor is encapsulated in a 4-lead SOT262 A1 balanced flange envelope, with two ceramic caps. The mounting flange provides the mon source connection for the transistors. PINNING
- SOT262 A1 PIN 1 2 3 4 5 DESCRIPTION drain 1 drain 2 gate 1 gate 2 source
MSB008
Fig.1 Simplified outline and symbol.
CAUTION The device is supplied in an antistatic package. The gate-source input must be protected against static charge during transport and handling. WARNING Product and environmental safety
- toxic materials This product contains beryllium oxide. The product is entirely safe provided that the Be O discs are not damaged. All persons who handle, use or dispose of this product should be aware of its nature and of the necessary safety precautions. After use, dispose of as chemical or special waste according to the regulations applying at the location of the user. It must never be thrown out with the general or domestic waste.
QUICK REFERENCE DATA RF performance at Th = 25 °C in a push-pull mon source test circuit. MODE OF OPERATION class-AB f (MHz) 225 175 VDS (V) 28 28 PL (W) 300 300 GP (d B) > 10 typ. 13 ηD (%) > 55 typ. 67
September 1992
Philips Semiconductors
Product specification
VHF push-pull power MOS transistor
LIMITING VALUES In accordance with the Absolute Maximum System (IEC 134). Per transistor section unless otherwise specified. SYMBOL VDS ±VGS ID Ptot Tstg PARAMETER drain-source voltage gate-source voltage DC drain current total power dissipation storage temperature CONDITIONS
- -
- up to Tmb = 25 °C total device;
- both sections equally loaded
- 65 MIN.
MAX. 65 20 25 500...