SFT6678 SERIES
Solid State Devices, Inc.
14701 Firestone Blvd * La Mirada, CA 90638
Phone: (562) 404-4474 * Fax: (562) 404-1773
ssdi@ssdi-power.com * www.ssdi-power.com
DESIGNER’S DATA SHEET
Part Number / Ordering Information
1/
SFT6678 M __ TX
│ │ └
Scre
ening
2/
__
= Not Screened
│ │
TX = TX Level
│ │
TXV = TXV Level
│ │
S = S Level
3/
│ └
Lead Bend _
= Straight Leads
│
UB = Up Bend
│
DB = Down Bend
└
Package
M
= TO-254
Z = TO-254Z
/3 = TO-3
15 AMPS
400 Volts
NPN High Speed
Power Transistor
Application Notes:
• Replaces Industry Standard 2N6678
• Designed for High Voltage, High Speed,
Power Switching Applications Such as:
• Off-Line Supplies
• Converter Circuits
• Pulse Width Modulated Regulators
• Motor Controls
• Deflection Circuits
Maximum Ratings
Collector – Emitter Voltage
Collector – Base Voltage
Emitter – Base Voltage
Continuous Collector Current
Continuous Base Current
Operating and Storage Temperature
@ T
C
=25°C
@ T
A
=25°C
Maximum Thermal Resistance
(Junction to Case)
(Ambient to Case)
Total Power Dissipation
Symbol
V
CEO
V
CBO
V
EBO
I
C
I
B
T
J
, T
STG
P
D
R
0JC
R
0JA
Value
400
650
8.0
15
5.0
-65 to +200
175
6.0
1.0
29.17
Units
Volts
Volts
Volts
Amps
Amps
°C
W
W
ºC/W
TO-254 (M)
TO-254 (Z)
TO-3 (/3)
NOTES:
1/
2/
3/
4/
* Pulse Test: Pulse Width = 300 µs, Duty Cycle < 2%
For ordering information, price, and availability contact factory.
Screening based on MIL-PRF-19500. Screening flows available on request.
Up and down bend configurations available for M and Z (TO-254 and TO-254Z) packages only.
All electrical characteristics @ 25°C, unless otherwise specified.
NOTE:
All specifications are subject to change without notification.
SCD's for these devices should be reviewed by SSDI prior to release.
DATA SHEET #: TR0019D
DOC
Solid State Devices, Inc.
14701 Firestone Blvd * La Mirada, CA 90638
Phone: (562) 404-4474 * Fax: (562) 404-1773
ssdi@ssdi-power.com * www.ssdi-power.com
SFT6678 SERIES
Symbol
T
C
= 25°C
T
C
= 25°C
T
C
= 125°C
V
CB
= 650V
(V
EB
= 8V, I
C
= 0)
I
CEV
Electrical Characteristics
Collector Cutoff Current
V
CE
= 400V, V
BE
(off) =1.5V
V
CE
= 650V, V
BE
(off) =1.5V
V
CE
= 650V, V
BE
(off) =1.5V
Collector – Base Leakage Current
Emitter Cutoff Current
Collector-Emitter Sustaining Voltage
(I
C
= 200mA, I
B
= 0)
DC Current Gain*
Base-Emitter Saturation Voltage*
(I
C
= 15A, I
B
= 3A)
Collector-Emitter Saturation Voltage*
(I
C
= 15A, I
B
= 3A)
Current Gain
(I
C
= 1A, V
CE
= 10V, f = 5MHz)
Output Capacitance
(V
CB
= 10V , f = 0.1MHz)
(V
CC
= 200V, I
C
= 15A, I
B1
= I
B2
= 3A, t
P
= 50
μsec,
Duty
Cycle < 2%, V
B
= 6V, R
L
= 13.5Ω)
(T
C
= 25°C)
(T
C
= 125°C)
V
CE
= 3V, 1
C
= 15A, T
A
= 25°C
V
CE
= 3V, 1
C
= 1A, T
A
= 25°C
V
CE
= 3V, 1
C
= 15A,T
A
= -55°C
Min
-
-
-
-
400
8
15
4
-
-
-
3
150
Max
0.5
1.0
50
1
2
-
20
40
-
1.5
1.0
2.0
10
500
Units
µA
µA
µA
mA
mA
V
I
CBO
I
EBO
V
CEO(sus)
H
FE1
H
FE2
H
FE3
V
BE
(SAT)
V
V
V
CE
(SAT)
|h
FE
|
C
ob
pF
Delay Time
t
d
t
(on)
-
0.1
Rise Time
t
r
-
2.5
µsec
Storage Time
t
(off)
Fall Time
Cross Over Time
(I
C
= 15 A(pk), V
CLAMP
= 450V, I
B1
= 3 A, V
BE(off)
= 6V)
t
s
-
0.6
t
f
-
0.5
t
c
-
0.5
µsec
NOTE:
All specifications are subject to change without notification.
SCD's for these devices should be reviewed by SSDI prior to release.
DATA SHEET #: TR0019D
DOC
Solid State Devices, Inc.
14701 Firestone Blvd * La Mirada, CA 90638
Phone: (562) 404-4474 * Fax: (562) 404-1773
ssdi@ssdi-power.com * www.ssdi-power.com
SFT6678 SERIES
V
CE
= 11.7 V, I
C
= 15 A, 1 sec
V
CE
= 30 V, I
C
= 5.9 A, 1 sec
V
CE
= 100 V, I
C
= 0.25 A, 1 sec
V
CE
= 400 V, I
C
= 10 mA, 1 sec
V
CC
= 15 V, V
BB2
= 5 V, R
BB1
= 5
Ω,
R
BB2
= 1.5Ω, L = 50µH,
V
clamp
= 450V, I
C
= 15 A
Case Outline: TO-254Z
Safe Operating Area, DC
Safe Operating Area,
clamped switching
Case Outline: TO-254
Case Outline: TO-3
Lead Options
DB (Down Bend)
UB (Up Bend)
PIN ASSIGNMENT (Standard)
Package
Collector
Emitter
TO-3 (/3)
Case
Pin 2
TO-254 (M)
Pin 1
Pin 2
TO-254 (Z)
Pin 1
Pin 2
Available Part Numbers:
SFT6678M
SFT6678MDB
SFT6678MUB
Base
Pin 3
Pin 3
Pin 3
SFT6678/3
SFT6678Z
SFT6678ZDB
SFT6678ZUB
NOTE:
All specifications are subject to change without notification.
SCD's for these devices should be reviewed by SSDI prior to release.
DATA SHEET #: TR0019D
DOC
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