1N4448

®
TAK CHEONG
500 mW SOD27 Hermetically
Sealed Glass Fast Switching
Diodes
AXIAL LEAD
SOD27
Absolute Maximum Ratings
TA = 25°C unless otherwise noted
Parameter
Value
Units
Power Dissipation
500
mW
Repetitive Peak Reverse Voltage
100
V
VR
Continuous Reverse Voltage
100
V
IF
Continuous Forward Current(see Fig. 2)
200
mA
PH
IFRM
Repetitive Peak Forward Current
450
mA
TSTG
Storage Temperature Range
-65 to +200
°C
xx
xx
+200
°C
4
1
0.5
A
A
A
Symbol
PD
VRRM
TJ
IFSM
Operating Junction Temperature
Non-Repetitive Peak Forward Current
Pulse Width :
1.0 µs
(see Fig.4)
1.0 ms
1.0 s
DEVICE MARKING DIAGRAM
PH1Nxxxx
: Device Code
Device mounted on an FR4 printed-circuit board; lead length 10 mm
Specification Features:
§
§
§
§
§
§
§
§
§
Fast Switching Device (TRR <4.0 nS)
SOD27(DO-35) Package
Through-Hole Device Type Mounting
Hermetically Sealed Glass
Anode
Cathode
Compression Bonded Construction
All External Surfaces Are Corrosion Resistant And Leads Are Readily Solderable
Fig.1 Simplifed outline and
symbol
RoHS Compliant and Halogen Free
Solder Hot Dip Tin (Sn) Terminal Finish
Cathode Indicated By Polarity Band
Electrical Characteristics TA = 25°C unless otherwise noted
Limits
Symbol
VF
IR
Parameter
Test Condition
Min
Max
0.62
0.72
Forward Voltage
PH1N4148
IF=10mA
(see Fig.3)
PH1N4448
IF=5mA
PH1N4448
IF=100mA
1.0
Unit
1.0
V
Reverse Current
PH1N4148/PH1N4448
VR=20V
25
nA
(see Fig.5)
PH1N4148/PH1N4448
VR=20V,Tj=150℃
50
µA
PH1N4448
VR=20V,Tj=100℃
3
µA
C
Capacitance (see Fig.6)
VR=0V, f=1MHZ
4
pF
TRR
Reverse Recovery Time
when switched from IF=10mA to
IR=60mA;RL=100Ω
4
ns
(see Fig.7)
measured at IR=1mA
Vfr
Forward Recovery Voltage(see Fig.8)
when switched from IF=50mA,
Tr=20ns
2.5
V
Rth(j-tp)
Thermal Resistance Form Junction To Tie-Point
Lead Length 10mm
240
K/W
Rth(j-a)
Thermal Resistance Form Junction To Ambient
Lead Length 10mm
350
K/W
Number: DB-271
Mar.2015/B
Page 1
PH1N4148/PH1N4448
Licensed by N XP Sem ico nductor
®
TAK CHEONG
Licensed by N XP Sem ico nductor
Typical Characteristics
Number: DB-271
Mar.2015/B
Page 2
®
TAK CHEONG
Licensed by N XP Sem ico nductor
Number: DB-271
Mar.2015/B
Page 3
®
TAK CHEONG
Licensed by N XP Sem ico nductor
Number: DB-271
Mar.2015/B
Page 4
®
TAK CHEONG
Licensed by N XP Sem ico nductor
Package Outline
Package
Case Outline
SOD27(DO-35)
DO-35
DIM
Millimeters
Inches
Min
Max
Min
Max
A
0.46
0.56
0.018
0.022
B
3.05
4.25
0.120
0.167
C
25.40
38.10
1.000
1.500
D
1.53
1.85
0.060
0.073
Notes:
1.
2.
All dimensions are within JEDEC standard.
DO35 polarity denoted by cathode band.
Number: DB-271
Mar.2015/B
Page 5
®
TAK CHEONG
Licensed by N XP Sem ico nductor
NOTICE
The information presented in this document is for reference only. Tak Cheong reserves the right to make
changes without notice for the specification of the products displayed herein.
The product listed herein is designed to be used with ordinary electronic equipment or devices, and not
designed to be used with equipment or devices which require high level of reliability and the malfunction of
with would directly endanger human life (such as medical instruments, transportation equipment, aerospace
machinery, nuclear-reactor controllers, fuel controllers and other safety devices), Tak Cheong
Semiconductor Co., Ltd., or anyone on its behalf, assumes no responsibility or liability for any damagers
resulting from such improper use of sale.
This publication supersedes & replaces all information previously supplied. For additional information, please
visit our website http://www.takcheong.com, or consult your nearest Tak Cheong’s sales office for further
assistance.
Number: DB-271
Mar.2015/B
Page 6