BLF278,112 NXP Semiconductors, BLF278,112 Datasheet - Page 21

• Manufacturer Part Number: BLF278,112
• Description: TRANSISTOR RF DMOS SOT262A1
• Manufacturer: NXP Semiconductors

Specifications of BLF278,112

• Package / Case: SOT-262A1
• Transistor Type: 2 N-Channel (Dual)
• Frequency: 108MHz
• Gain: 22dB
• Voltage - Rated: 125V
• Current Rating: 18A
• Current - Test: 100mA
• Voltage - Test: 50V
• Power - Output: 300W
• Minimum Operating Temperature: - 65 C
• Mounting Style: SMD/SMT
• Resistance Drain-source Rds (on): 0.3 Ohm @ 10 V
• Transistor Polarity: N-Channel
• Configuration: Dual Common Source
• Drain-source Breakdown Voltage: 125 V
• Gate-source Breakdown Voltage: +/- 20 V
• Continuous Drain Current: 18 A
• Power Dissipation: 500000 mW
• Maximum Operating Temperature: + 200 C
• Application: VHF
• Channel Type: N
• Channel Mode: Enhancement
• Drain Source Voltage (max): 125V
• Power Gain (typ)@vds: 20(Min)@50V/18@50V/16@50VdB
• Frequency (max): 225MHz
• Package Type: CDFM
• Pin Count: 5
• Forward Transconductance (typ): 6.2S
• Drain Source Resistance (max): 300@10Vmohm
• Input Capacitance (typ)@vds: 480@50VpF
• Output Capacitance (typ)@vds: 190@50VpF
• Reverse Capacitance (typ): 14@50VpF
• Operating Temp Range: -65C to 200C
• Drain Efficiency (typ): 80%
• Mounting: Screw
• Mode Of Operation: CW Class-AB/CW Class-B/CW Class-C
• Number Of Elements: 2
• Power Dissipation (max): 500000mW
• Vswr (max): 7
• Screening Level: Military
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Noise Figure: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-2412; 933978520112; BLF278; BLF278

Philips Semiconductors
PACKAGE OUTLINE
2003 Sep 19
Flanged double-ended ceramic package; 2 mounting holes; 4 leads
VHF push-pull power MOS transistor
DIMENSIONS (millimetre dimensions are derived from the original inch dimensions)
inches
UNIT
mm
SOT262A1
VERSION
OUTLINE
0.227
0.197
5.77
5.00
A
H
U 2
0.230
0.220
A
A
5.85
5.58
b
0.006
0.004
0.16
0.10
c
IEC
22.17
21.46
0.873
0.845
D
21.98
21.71
0.865
0.855
D 1
11.05
0.435
3
1
e
JEDEC
10.27
10.05
0.404
0.396
D 1
U 1
H 1
q
D
e
E
REFERENCES
10.29
10.03
0.405
0.396
E 1
0
b
2
4
0.070
0.060
1.78
1.52
F
EIAJ
scale
21
5
21.08
19.56
0.830
0.770
H
w 2
w 3
10 mm
17.02
16.51
0.670
0.650
M
M
5
H 1
C
C
M
0.129
0.119
3.28
3.02
p
F
B
p
0.112
0.102
2.85
2.59
w 1
Q
M
27.94
1.100
A
q
M
PROJECTION
EUROPEAN
B
34.17
33.90
1.345
1.335
M
U 1
E 1
0.390
0.380
9.91
9.65
U 2
c
Q
Product Specification
0.010 0.020
0.25
w 1
ISSUE DATE
BLF278
99-03-29
0.51
w 2
SOT262A1
E
0.010
0.25
w 3