1n4448.pdf

RECTRON
1N4448
SEMICONDUCTOR
TECHNICAL SPECIFICATION
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
DO-35
.022 (0.56)
DIA.
.018 (0.46)
1.02 (26.0)
MIN.
.165 (4.2)
MAX.
.079 (2.0)
MAX.
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
DIA.
1.02 (26.0)
MIN.
o
Ratings at 25 C ambient temperature unless otherwise specified.
Dimensions in inches and (millimeters)
o
MAXIMUM RATINGES ( @ TA = 25 C unless otherwise noted )
SYMBOL
1N4448
UNITS
Peak Reverse Voltage
Vrm
100
Volts
Maximum DC Blocking Voltage
VDc
70
Volts
Maximum Forward Continuous Current
IFM
100
mAmps
Maximum Average Forward Rectified Current
IO
150
mAmps
Non-Repetitive Peak Forward Surge Current
IFSM
1
Amps
Typical Reverse Recovery Time(I F=I R=30mA,I rr =0.1X IR,R L=100Ω)
T rr
4
nS
Typical Junction Capacitance(V R=0V,f=1MHz)
CT
4
pF
Maximum Power Dissipation
PD
500
mW
TJ,TSTG
-65 to + 200
SYMBOL
1N4448
RATINGS
Operating and Storage Temperature Range
O
C
ELECTRICAL CHARACTERISTICS (@TA=25 C unless otherwise noted)
O
CHARACTERISTICS
Maximum Instantaneous Forward Voltage
Maximum Instantaneous Reverse Current
@I F =5mA
@I F =100mA
@V R =20V
@V R =75V
VF
IR
0.72
1.0
UNITS
Volts
25
nAmps
5
uAmps
2012-9
1000
10,000
IR, LEAKAGE CURRENT (nA)
IF, INSTANTANEOUS FORWARD CURRENT (mA)
RATING AND CHARACTERISTICS CURVES ( 1N4448 )
100
10
1.0
0.1
1000
100
10
VR =20V
1
0.01
0
1
VF, INSTANTANEOUS FORWARD VOLTAGE(V)
Figure1 Forward Characteristics
2
0
100
200
TJ, JUNCTION TEMPERATURE (OC)
Figure2 Leakage Current vs Junction Temperature
RECTRON
RECTRON
Attachment information about 1N4448
1. Internal Circuit
Anode
Cathode
2. Marking on the body
Cathode Band
1N
44
48
Part No
PACKAGING OF DIODE
BULK PACK
PACKAGE
PACKING
CODE
DO-35
-B
DO-41G
-B
INNER BOX SIZE
CARTON SIZE
(mm)
(mm)
10,000
240*100*100
2,500
240*100*100
EA PER BOX
EA PER CARTON
GROSS
WEIGHT(Kg)
410*350*275
120,000
21.5
410*350*275
50,000
15.6
REEL PACK
PACKAGE
PACKING
CODE
REEL
( EA )
COMPONENT TAPE SPACE
SPACE(mm)
(mm)
REEL DIA
(mm)
CARTON SIZE
(mm)
EA PER
CARTON
GROSS
WEIGHT(Kg)
DO-35
-T
10,000
5.0
52
356
370*370*420
50,000
11.00
DO-41G
-T
5,000
5.0
52
356
370*370*420
25,000
11.50
SOT-23/-3L
-T
3,000
---
---
178
438*438*220
180,000
---
LL-34
-T
2,500
---
---
178
385*270*220
90,000
7.50
SOD-123
-T
3,000
---
---
178
438*438*220
180,000
9.00
SOD-323
-T
3,000
---
---
178
438*438*220
180,000
9.00
SOT-323
-T
3,000
---
---
178
438*438*220
180,000
9.00
LL-41
-W
5,000
---
---
330
370*370*420
50,000
6.6
BOX SIZE
CARTON
CARTON
GROSS
(mm)
SIZE(mm)
( EA )
WEIGHT (Kg)
AMMO PACK
PACKAGE PACKING
REEL
COMPONENT TAPE SPACE
CODE
( EA )
SPACE(mm)
(mm)
DO-35
-F
5,000
5.0
52
250*80*80
425*270*220
100,000
20.00
DO-41G
-F
3,000
5.0
52
250*80*80
425*270*220
60,000
20.00
Visit http:// www.rectron.com for complete datasheets
D36
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Rectron Inc reserves the right to make changes without notice to any product
specification herein, to make corrections, modifications, enhancements or other
changes. Rectron Inc or anyone on its behalf assumes no responsibility or liability for any errors or inaccuracies. Data sheet specifications and its information
contained are intended to provide a product description only. "Typical" parameters which may be included on RECTRON data sheets and/ or specifications can and do vary in different applications and actual performance may vary over time. Rectron Inc does not assume any liability arising out of the application or
use of any product or circuit.
Rectron products are not designed, intended or authorized for use in medical,
life-saving implant or other applications intended for life-sustaining or other related applications where a failure or malfunction of component or circuitry may directly or indirectly cause injury or threaten a life without expressed written approval of Rectron Inc. Customers using or selling Rectron components for use in
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