November 2008 Rev 5 1/11
11
BUX98A
High power NPN transistor
Features
■High voltage capability
■High current capability
■Fast switching speed
Applications
■High frequency and efficency converters
■Linear and switching industrial equipment
Description
The BUX98A is a multi-epitaxial mesa NPN
transistor in TO-3 metal case, intended for
industrial applications from single and three-
phase mains operation.
Figure 1. Internal schematic diagram
TO-3
1
2
Type R
Table 1. Device summary
Order codes Marking Package Packaging
BUX98A BUX98A TO-3 Tray
www.st.com
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Content BUX98A
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Content
1 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Electrical characteristics (curves) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
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BUX98A Electrical ratings
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1 Electrical ratings
Table 2. Absolute maximum ratings
Symbol Parameter Value Unit
VCER Collector-emitter voltage (RBE ≤ 10 Ω) 1000 V
VCES Collector-emitter voltage (VBE = 0) 1000 V
VCEO Collector-emitter voltage (IB = 0) 450 V
VEBO Emitter-base voltage (IC = 0) 7 V
ICCollector current 30 A
ICM Collector peak current (tp ≤ 5ms) 60 A
ICP Collector peak current non repetitive (tp ≤ 20 µs) 80 A
IBBase current 8 A
IBM Base peak current (tp ≤ 5ms) 30 A
PTOT Total power dissipation at Tc = 25 °C 250 W
Tstg Storage temperature -65 to 200 °C
TJMax. operating junction temperature 200
Table 3. Thermal data
Symbol Parameter Value Unit
Rthj-case Thermal resistance junction-case max. 0.7 °C/W
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Electrical characteristics BUX98A
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2 Electrical characteristics
(Tcase = 25 °C; unless otherwise specified)
Table 4. Electrical characteristics
Symbol Parameter Test conditions Min. Typ. Max. Unit
ICES
Collector cut-off current
(VBE = 0)
VCE = 1000 V
VCE = 1000 V TC = 125 °C
400
4
µA
mA
ICER
Collector cut-off current
(RBE = 10 Ω)
VCE = 1000 V
VCE = 1000 V TC = 125 °C
1
8
µA
µA
ICEO
Collector cut-off current
(IB = 0) VCE = 1000 V 2 mA
IEBO
Emitter cut-off current
(IC = 0) VEB = 5 V 2 mA
VCEO(sus)(1)
1. Pulsed duration = 300 µs, duty cycle ≤ 1.5%
Collector-emitter
sustaining voltage (IB = 0) IC = 200 mA 450 V
VCER(sus)(1)
Collector-emitter
sustaining voltage
(RBE = 10 Ω)
IC = 1 A L= 2 mH 1000 V
VCE(sat)(1) Collector-emitter
saturation voltage
IC = 16 A IB = 3.2 A
IC = 24 A IB = 5 A
1.5
5
V
V
VBE(sat)(1) Base-emitter saturation
voltage IC = 16 A IB = 3.2 A 1.6 V
ton
ts
tf
Resistive load
Turn-on time
Storage time
Fall time
IC = 16 A VCC = 150 V
IB(on) = -IB(off) = 3.2 A
1
3
0.8
µs
µs
µs
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BUX98A Electrical characteristics
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2.1 Electrical characteristics (curves)
Figure 2. Safe operating area Figure 3. Derating curve
Figure 4. DC current gain Figure 5. Collector-emitter saturation voltage
Figure 6. Base-emitter saturation voltage
Figure 7. Resistive load switching times (on)
hFE
20
00.1 1IC(A)
10
40
60
VCE= 5 V
Tj= 25 °C
Tj= 125 °C
AM03275v1 VCE(sat)
0.5
00.1 1IC(A)
10
1
1.5
hFE= 5
Tj= 25 °C
Tj= 125 °C
(V)
AM03276v1
VBE(sat)
0.5
00.1 1IC(A)
10
1
1.5
hFE= 5
Tj= 125 °C
(V)
Tj= 25 °C
AM03277v1 t (ns)
100
1005IC(A)
10
1000
VCC = 150 V, VBE(off) = -5 V,
IB(on) = -IB(off), hFE = 5
Delay time
Rise time
15 20 25
AM03278v1
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Electrical characteristics BUX98A
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Figure 8. Resistive load switching times (off) Figure 9. Reverse biased SOA
t (µs)
1
0.105IC(A)
10
10
VCC = 150 V, VBE(off) = -5 V,
IB(on) = -IB(off), hFE = 5
Storage time
Fall time
15 20 25
AM03279v1
VCE
10
010
IC(A)
100
20
VBE(off) = -5 V
RBE(off) = 0
hFE = 5
L = 100 µH
1000 (V)
30
AM03280v1
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BUX98A Test circuits
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3 Test circuits
Figure 10. Resistive load switching test circuit
1) Fast electronic switch
2) Non-inductive resistor
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Package mechanical data BUX98A
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4 Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK®
packages. These packages have a lead-free second level interconnect . The category of
second level interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com
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BUX98A Package mechanical data
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DIM. hcnimm
MIN. TYP. MAX. MIN. TYP. MAX.
064.0 7.11A
340.0730.001.1 69.0B
660.007.1 C
243.07.8 D
787.0 0.02 E
924.0 9.01G
566.0 9.61N
130.12
.62 P
161.0251.090.4 88.3R
555.105.93 U
581.101.03V
E
B
R
C
D
A
P
G
N
V
U
O
0015929_C
TO-3 type R Mechanical data
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BUX98A
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