April 2009 Doc ID 3541 Rev 11 1/12
12
MJD122
MJD127
Complementary power Darlington transistors
Features
■Low collector-emitter saturation voltage
■Integrated antiparallel collector-emitter diode
Applications
■General purpose linear and switching
Description
The devices are manufactured in planar
technology with “base island” layout and
monolithic Darlington configuration. The resulting
transistors show exceptional high gain
performance coupled with very low saturation
voltage.
Figure 1. Internal schematic diagrams
DPAK
1
3
PNP: R1= 16 KΩ
R2= 60 Ω
NPN: R1= 7 KΩ
R2= 70 Ω
Table 1. Device summary
Order codes Marking Polarity Package Packaging
MJD122T4 MJD122 NPN DPAK Tape and reel
MJD127T4 MJD127 PNP
www.st.com
Content MJD122, MJD127
2/12 Doc ID 3541 Rev 11
Content
1 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Electrical characteristics (curves) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
MJD122, MJD127 Electrical ratings
Doc ID 3541 Rev 11 3/12
1 Electrical ratings
Note: For PNP types voltage and current values are negative.
Table 2. Absolute maximum ratings
Symbol Parameter Value Unit
VCBO Collector-base voltage (IE = 0) 100 V
VCEO Collector-emitter voltage (IB = 0) 100 V
VEBO Emitter-base voltage (IC = 0) 5 V
ICCollector current 8 A
ICM Collector peak current 16 A
IBBase current 0.12 A
PTOT Total dissipation at Tcase = 25°C 20 W
Tstg Storage temperature -65 to 150 °C
TJMax. operating junction temperature 150 °C
Table 3. Thermal data
Symbol Parameter Value Unit
Rthj-c Thermal resistance junction-case max. 6.25 °C/W
Electrical characteristics MJD122, MJD127
4/12 Doc ID 3541 Rev 11
2 Electrical characteristics
(Tcase = 25 °C; unless otherwise specified)
Note: For PNP types voltage and current values are negative.
Table 4. Electrical characteristics
Symbol Parameter Test conditions Min. Typ. Max. Unit
ICBO
Collector cut-off current
(IE = 0) VCB = 100 V -10µA
ICEO
Collector cut-off current
(IB = 0) VCE = 50 V -10µA
IEBO
Emitter cut-off current
(IC = 0) VEB = 5 V -2mA
VCEO(sus) (1)
1. Pulsed duration = 300 µs, duty cycle ≤ 1.5%
Collector-emitter
sustaining voltage (IB = 0) IC = 30 mA 100 - V
VCE(sat)(1) Collector-emitter
saturation voltage
IC = 4 A _ IB = 16 mA
IC = 8 A _ IB = 80 mA -2
4
V
V
VBE(sat)(1) Base-emitter saturation
voltage IC = 8 A _ IB = 80 mA -4.5V
VBE(on)(1) Base-emitter on voltage IC = 4 A _ VCE = 4 V -2.8V
hFE (1) DC current gain IC = 4A VCE = 4 V
IC = 8 A VCE = 4 V
1000
100 -12000
MJD122, MJD127 Electrical characteristics
Doc ID 3541 Rev 11 5/12
2.1 Electrical characteristics (curves)
Figure 2. Safe operating area Figure 3. Derating curve
Figure 4. DC current gain for NPN type Figure 5. DC current gain for PNP type
Figure 6. Collector-emitter saturation voltage
for NPN type
Figure 7. Collector-emitter saturation voltage
for PNP type
hFE
1000
100
10
0.01 Ic(A)
0.1 1
VCE= 3 V
Tj= -40 °C
Tj= 25 °C
Tj=125 °C
AM00696v1 hFE
1000
100
10
-0.01 Ic(A)
-0.1 -1
Tj= -40 °C
Tj= 25 °C
Tj=125 °C
VCE= -3 V
AM00697v1
VCE(sat)
1
0.6
0.2
0.1 Ic(A)
1
hFE= 250
Tj= -40 °C
Tj= 25 °C
Tj=125 °C
(V)
1.4
AM00698v1 VCE(sat)
-1
-0.6
-0.2
-0.1 Ic(A)
-1
hFE= 250
Tj= -40 °C
Tj= 25 °C
Tj=125 °C
(V)
-1.4
AM00699v1
Electrical characteristics MJD122, MJD127
6/12 Doc ID 3541 Rev 11
Figure 8. Base-emitter saturation voltage for
NPN type
Figure 9. Base-emitter saturation voltage for
PNP type
Figure 10. Base-emitter on voltage for NPN
type
Figure 11. Base-emitter on voltage for PNP
type
Figure 12. Resistive load switching times for
NPN type (on)
Figure 13. Resistive load switching times for
PNP type (on)
VBE(sat)
1.5
1.0
0.5
0.1 Ic(A)
1
hFE= 250
Tj= -40 °C
Tj= 25 °C
Tj=125 °C
(V)
2.0
AM00700v1 VBE(sat)
-1.5
-1.0
-0.5
-0.1 Ic(A)
-1
hFE= 250
Tj= -40 °C
Tj= 25 °C
Tj=125 °C
(V)
-2.0
AM03261v1
VBE(on)
1.5
1.0
0.5
0.1 Ic(A)
1
VCE= 3 V
Tj= -40 °C
Tj= 25 °C
Tj=125 °C
(V)
2.0
AM03262v1 VBE(on)
-1.5
-1.0
-0.5
- 0.1 Ic(A)
-1
Tj= -40 °C
Tj= 25 °C
Tj=125 °C
(V)
-2.0 VCE= -3 V
AM03263v1
t(ns)
100
10
0 Ic(A)
2
Delay time
Rise time
1 3 5
4
Vcc= 30 V
hFE=250
Vbeo= - 5 V
Ibon= - Ibo
AM03264v1
t(ns)
100
10
0 Ic(A)
-2
Delay time
Rise time
-1 -3 -5
-4
Vcc= -30 V
hFE=250
Vbeo= 5 V
-Ibon= Ibo
AM03265v1
MJD122, MJD127 Electrical characteristics
Doc ID 3541 Rev 11 7/12
Figure 14. Resistive load switching times for
NPN type (off)
Figure 15. Resistive load switching times for
PNP type (off)
Figure 16. Capacitances for NPN type Figure 17. Capacitances for PNP type
t(ns)
1000
100
0 Ic(A)
2
Storage time
Fall time
1 3 5
4
Vcc= 30 V
hFE=250
Vbeo= - 5 V
Ibon= - Ibo
AM03266v1
t(ns)
1000
100
0 Ic(A)
-2
Storage time
Fall time
-1 -3 -5
-4
Vcc= -30 V
hFE=250
Vbeo= 5 V
-Ibon= Ibo
AM03267v1
C(pF)
100
10
0.01 VR(V)
1
0.1 10
F= 0.1 MHz
CCB
CEB
AM03269v1
C(pF)
100
10
0.01 VR(V)
1
0.1 10
F= 0.1 MHz
CCB
CEB
AM03268v1
Test circuits MJD122, MJD127
8/12 Doc ID 3541 Rev 11
3 Test circuits
Figure 18. Resistive load switching for NPN type
1. Fast electronic switch
2. Non-inductive resistor
Figure 19. Resistive load switching for PNP type
1. Fast electronic switch
2. Non-inductive resistor
MJD122, MJD127 Package mechanical data
Doc ID 3541 Rev 11 9/12
4 Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK is an ST trademark.
Package mechanical data MJD122, MJD127
10/12 Doc ID 3541 Rev 11
DIM. mm.
min. typ max.
A 2.20 2.40
A1 0.901.10
A2 0.030.23
b0.64 0.90
b4 5.20 5.40
c 0.45 0.60
c2 0.480.60
D 6.00 6.20
D1 5.10
E 6.40 6.60
E1 4.70
e2.28
e1 4.40 4.60
H9.35 10.10
L1
L1 2.80
L2 0.80
L4 0.60 1
R0.20
V2 0 o8o
TO-252 (DPAK) mechanical data
0068772_G
MJD122, MJD127 Revision history
Doc ID 3541 Rev 11 11/12
5 Revision history
Table 5. Document revision history
Date Revision Changes
01-Aug-2002 8
01-Oct-2007 9 Collector current limits have been improved
03-Oct-2007 10 Package mechanical data updated
21-Apr-2009 11 The device MJD127 has been inserted
Section 2.1: Electrical characteristics (curves) has been updated
MJD122, MJD127
12/12 Doc ID 3541 Rev 11
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