RREECCTTRROONN
SEMICONDUCTOR
TECHNICAL SPECIFICATION
1N4448
MAXIMUM RATINGES ( @ TA = 25oC unless otherwise noted )
SILICON PLANAR ZENER DIODE
FEATURES
*Fast Switching Device(TRR<4.0nS)
*DO-35 Package (JEDEC)
*
*
*
*
Through-Hole Device Type Mounting
Hermetically Sealed Glass
Compression Bonded Construction
All external surfaces are corrosion resistant and leads
are readily solderable
Dimensions in inches and (millimeters)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 oC ambient temperature unless otherwise specified.
MAX.
.165 (4.2)
1.02 (26.0)
MIN.
1.02 (26.0)
MIN.
.079 (2.0)
MAX. DIA.
.022 (0.56)
.018 (0.46)DIA.
ELECTRICAL CHARACTERISTICS
(@TA=25
OC unless otherwise noted)
2012-9
RATINGS
Maximum Forward Continuous Current
Non-Repetitive Peak Forward Surge Current
Maximum Power Dissipation
Operating and Storage Temperature Range
SYMBOL 1N4448
mAmps100
Maximum Average Forward Rectified Current mAmps150
1
500
4
-65 to + 200
Amps
mW
pF
4 nS
OC
UNITS
CHARACTERISTICS
Maximum Instantaneous Reverse Current
VF
SYMBOL
IR
UNITS
Maximum Instantaneous Forward Voltage
Volts
@V
R
=75V
@V
R
=20V
@IF=5mA
@IF=100mA
0.72
25
1.0
5 uAmps
nAmps
1N4448
IFM
IFSM
PD
TJ,TSTG
IO
CT
Trr
Typical Junction Capacitance(VR=0V,f=1MHz)
Typical Reverse Recovery Time(IF=IR=30mA,Irr=0.1XIR,RL=100Ω)
DO-35
Peak Reverse Voltage Vrm
Maximum DC Blocking Voltage VDc 70
100
Volts
Volts
RECTRON
TJ, JUNCTION TEMPERATURE (OC)
IR, LEAKAGE CURRENT (nA)
IF, INSTANTANEOUS FORWARD CURRENT (mA)
VF, INSTANTANEOUS FORWARD VOLTAGE(V)
0 100
1
100
10
10,000
1000
0.01
0.1
1.0
10
100
1000
200
210
RATING AND CHARACTERISTICS CURVES ( 1N4448 )
Figure1 Forward Characteristics Figure2 Leakage Current vs Junction Temperature
V
R
=20V
RECTRON
Attachment information about 1N4448
1. Internal Circuit
Anode
Cathode
2. Marking on the body
Cathode Band
1N
44
48
Part No
D36
PACKAGING OF DIODE
BULK PACK
PACKAGE EA PER BOX INNER BOX SIZE
(mm) CARTON SIZE
(mm) EA PER CARTON GROSS
WEIGHT(Kg)
Visit http:// www.rectron.com for complete datasheets
DO-35
DO-41G 2,500
10,000 240*100*100
240*100*100
410*350*275
410*350*275 50,000
120,000 21.5
15.6
REEL PACK
PACKAGE GROSS
WEIGHT(Kg)
DO-35
REEL
( EA ) COMPONENT
SPACE(mm) TAPE SPACE
(mm) CARTON SIZE
(mm) (mm) EA PER
CARTON
REEL DIA
DO-41G
SOT-23/-3L
LL-34
SOD-123
SOD-323
SOT-323
10,000
5,000
3,000
2,500
3,000
5.0
5.0
---
---
---
52
52
---
---
---
356
356
178
178
178
370*370*420
370*370*420
438*438*220
385*270*220
438*438*220
50,000
25,000
180,000
90,000
180,000
11.00
11.50
---
7.50
9.00
AMMO PACK
PACKAGE PACKING
CODE REEL
( EA ) COMPONENT
SPACE(mm) (mm) (mm)
TAPE SPACE BOX SIZE CARTON
SIZE(mm) CARTON
( EA ) GROSS
WEIGHT (Kg)
DO-35
DO-41G
-F
-F
5,000
3,000
5.0
5.0
52
52
250*80*80
250*80*80
425*270*220
425*270*220
100,000
60,000
20.00
20.00
PACKING
CODE
-T
-T
-T
-T
LL-41 5,000 --- --- 330 370*370*420 50,000 6.6
-W
-T
3,000 --- --- 178 438*438*220 180,000 9.00
-T
3,000 --- --- 178 438*438*220 180,000 9.00
-T
PACKING
CODE
-B
-B
RECTRON
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