The BU2527AX is a high-voltage, high-speed switching NPN power transistor encapsulated in a TO-3P(H)IS plastic package. This silicon diffused power transistor is specifically designed for demanding applications, particularly in the horizontal deflection circuits of high-resolution CRT monitors. Its robust design and improved RBSOA (Reverse Bias Safe Operating Area) performance make it a reliable choice for operations up to 64 kHz.
Features
- High Collector-Emitter Sustaining Voltage: With a VCEO(SUS) of 800V minimum, it can handle high voltage requirements.
- High Switching Speed: Optimized for fast switching, crucial for horizontal deflection circuits.
- High Reliability: Offers minimal variation between batches, ensuring consistent and dependable performance.
- Fully Isolated Package: The TO-3P(H)IS package provides electrical isolation.
Specifications
| Parameter |
Symbol |
Value |
Unit |
| Collector-Emitter Voltage (VBE=0) |
VCES |
1500 |
V |
| Collector-Emitter Voltage |
VCEO |
800 |
V |
| Emitter-Base Voltage |
VEBO |
7.5 |
V |
| Collector Current (Continuous) |
IC |
12 |
A |
| Collector Current (Peak) |
ICM |
30 |
A |
| Base Current (Continuous) |
IB |
8 |
A |
| Base Current (Peak) |
IBM |
12 |
A |
| Collector Power Dissipation (Tc=25°C) |
PC |
45 |
W |
| Junction Temperature |
TJ |
150 |
°C |
| Storage Temperature Range |
Tstg |
-55 to 150 |
°C |
| Thermal Resistance, Junction to Case |
Rth j-c |
2.8 |
°C/W |
Electrical Characteristics (Tc=25°C unless otherwise specified)
| Parameter |
Symbol |
Conditions |
Min |
Typ |
Max |
Unit |
| Collector-Emitter Sustaining Voltage |
VCEO(SUS) |
IC=100mA, IB=0, L=25mH |
800 |
– |
– |
V |
| Emitter-Base Breakdown Voltage |
V(BR)EBO |
IE=1mA, IC=0 |
7.5 |
– |
– |
V |
| Collector-Emitter Saturation Voltage |
VCE(sat) |
IC=6A, IB=1.2A |
– |
– |
5.0 |
V |
| Base-Emitter Saturation Voltage |
VBE(sat) |
IC=6A, IB=1.2A |
– |
– |
1.3 |
V |
| Collector Cutoff Current |
ICES |
VCE=1500V, VBE=0 |
– |
– |
0.25 |
mA |
| Collector Cutoff Current (TC=125°C) |
ICES |
VCE=1500V, VBE=0 |
– |
– |
2.0 |
mA |
| Emitter Cutoff Current |
IEBO |
VEB=7.5V, IC=0 |
– |
– |
0.25 |
mA |
| DC Current Gain |
hFE-1 |
IC=1A, VCE=5V |
6 |
– |
21 |
|
| DC Current Gain |
hFE-2 |
IC=6A, VCE=5V |
5 |
– |
9 |
|
| Output Capacitance |
Cob |
IE=0, VCB=10V, ftest=1MHz |
– |
145 |
– |
pF |
| Storage Time |
tstg |
Ic=6A, IB(end)=0.55A; LB=0.6µH, -VBB=2V; (-dIB/dt=3.33A/µs) |
– |
– |
2.0 |
µs |
| Fall Time |
tf |
– |
– |
0.2 |
µs |
Applications
- The primary application for the BU2527AX is in the horizontal deflection circuits of high-resolution monitors and Cathode Ray Tube (CRT) displays.
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