KSD1621 — NPN Epitaxial Silicon Transistor
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
KSD1621 Rev. B3 2
Electrical Characteristics T
A
= 25°C unless otherwise noted
h
FE
Classification
Package Marking and Ordering Information
Symbol Parameter Test Condition Min. Typ. Max. Units
BV
CBO
Collector-Base Breakdown Voltage I
C
= 10μA, I
E
= 0 30 V
BV
CEO
Collector-Emitter Breakdown Voltage I
C
= 1mA, I
B
= 0 25 V
BV
EBO
Emitter-Base Breakdown Voltage I
E
= 10μA, I
C
= 0 6 V
I
CBO
Collector Cut-off Current V
CB
= 20V, I
E
= 0 100 nA
I
EBO
Emitter Cut-off Current V
BE
= 4V, I
C
= 0 100 nA
h
FE1
h
FE2
DC Current Gain V
CE
= 2V, I
C
= 0.1A
V
CE
= 2V, I
C
= 1.5A
100
65
560
V
CE
(sat) Collector-Emitter Saturation Voltage I
C
= 1.5A, I
B
= 75mA 0.18 0.4 V
V
BE
(sat) Base-Emitter Saturation Voltage I
C
= 1.5A, I
B
= 75mA 0.85 1.2 V
f
T
Current Gain Bandwidth product V
CE
= 10V, I
C
= 50mA 150 MHz
C
ob
Output Capacitance V
CB
= 10V, I
E
= 0, f = 1MHz 19 pF
t
ON
Turn On Time *
V
CC
= 12V, V
BE
= 5V
I
B1
= -I
B2
= 25mA
I
C
= 0.5A, R
L
= 25Ω
60 ns
t
STG
Storage Time * 500 ns
t
F
Fall Time * 25 ns
Classification R S T U
h
FE
100 ~ 200 140 ~ 280 200 ~ 400 280 ~ 560
Device Device Marking Package Reel Size Tape Width Quantity
KSD1621RTF
Line 1: 1621
Line 2: R&3
SOT-89 13” -- 4,000
KSD1621STF
Line 1: 1621
Line 2: S&3
SOT-89 13” -- 4,000
KSD1621TTF
Line 1: 1621
Line 2: T&3
SOT-89 13” -- 4,000
KSD1621UTF
Line 1: 1621
Line 2: U&3
SOT-89 13” -- 4,000