BLU99
BLU99 is UHF power transistor manufactured by NXP Semiconductors.
- Part of the BLU comparator family.
- Part of the BLU comparator family.
DESCRIPTION
N-P-N silicon planar epitaxial transistor primarily intended for use in mobile radio transmitters in the u.h.f. band. The transistor is also very suitable for application in the 900 MHz mobile radio band. FEATURES
- multi-base structure and diffused emitter-ballasting resistors for an optimum temperature profile;
- gold metallization ensures excellent reliability. The BLU99 has a 4-lead stud envelope with a ceramic cap (SOT122A). All leads are isolated from the stud. The BLU99/SL is a studless version (SOT122D). QUICK REFERENCE DATA R.F. performance at Th = 25 °C in a mon-emitter class-B circuit. MODE OF OPERATION narrow band; c.w. VCE V 12,5 12,5 f MHz 470 900 PL W 5 4 > typ. Gp d B
BLU99 BLU99/SL
ηC % 10,5 > 7,0 typ. 60 60
PIN CONFIGURATION
PINNING
- SOT122A; SOT122D PIN fpage
DESCRIPTION collector emitter base emitter
1 2 3 4 age
4 1 3 1 3
2 Top view
MBK187
MSB055
Fig.1
Simplified outline. SOT122A (BLU99).
Fig.2
Simplified outline. SOT122D (BLU99/SL).
PRODUCT SAFETY This device incorporates beryllium oxide, the dust of which is toxic. The device is entirely safe provided that the Be O disc is not damaged.
March 1993
Philips Semiconductors
Product specification
UHF power transistor
RATINGS Limiting values in accordance with the Absolute Maximum System (IEC 134) Collector-base voltage (open emitter) Collector-emitter voltage (open base) Emitter-base voltage (open collector) Collector current d.c. or average peak value; f > 1 MHz D.C. power dissipation up to Tmb = 50 °C R.F. power dissipation f > 1 MHz; Tmb = 25 °C Storage temperature Operating junction temperature Ptot (r.f.) Tstg Tj max. max. 19 W 200 °C
- 65 to + 150 °C IC;IC(AV) ICM Ptot (d.c.) max. max. max. 0,8 A 2,5 A 12,5 W VCBO VCEO VEBO max. max. max. 36 V 16 V 3 V
BLU99 BLU99/SL handbook, halfpage
MDA372
Tmb = 50 °C Th = 70 °C handbook, halfpage
MDA373
Ptot IC (A) 20 II (W) III
10- 1
4 1 10 VCE (V) 102 0 20 40 60 80 100 Th (°C)
Rth mb-h = 0,6...