Document
1N4148 / 1N4448 / 1N914B
Taiwan Semiconductor
500mW, High Speed Switching Diode
FEATURES
● Low power loss, high efficiency ● Ideal for automated placement ● High surge current capability ● Compliant to RoHS directive 2011/65/EU and
in accordance to WEEE 2002/96/EC ● Halogen-free according to IEC 61249-2-21
APPLICATIONS
● Switching mode power supply (SMPS)
KEY PARAMETERS
PARAMETER VALUE UNIT
IF
150
mA
VRRM
100
V
IFSM
2
A
VF at IF=100mA
1
V
TJ MAX Package Configuration
150
°C
DO-35
Singal die
MECHANICAL DATA
● Case: DO-35 ● Packing code with suffix "G" means green compound
(halogen-free) ● Terminal: Matte tin plated leads, solderable per J-STD-002 ● Polarity: Indicated by cathode band ● Weight: 125 ± 4 mg
ABSOLUTE MAXIMUM RATINGS (TA = 25°C unless otherwise noted)
PARAMETER
SYMBOL 1N4148 1N4448 1N914B
Power dissipation
PD
500
Repetitive peak reverse voltage
VRRM
100
Non-Repetitive peak forward surge current
Pluse width = 1μs, Square wave
IFSM
2
Non-Repetitive peak forward current
IFM
450
Forward current
IF
150
Junction temperature range
TJ
-65 to +150
Storage temperature range
TSTG
-65 to +150
UNIT mW V
A
mA mA °C °C
THERMAL PERFORMANCE
PARAMETER Junction-to-ambient thermal resistance
SYMBOL RӨJA
TYP 240
UNIT °C/W
1
Version:J1804
1N4148 / 1N4448 / 1N914B
Taiwan Semiconductor
ELECTRICAL SPECIFICATIONS (TA = 25°C unless otherwise noted)
PARAMETER
CONDITIONS
SYMBOL
MIN
1N4448,1N914B
Forward voltage
per diode (1)
1N4148
1N4448,1N914B
IF = 5 mA, TJ = 25°C IF = 10 mA, TJ = 25°C IF = 100 mA, TJ = 25°C
0.62
VF
-
-
Reverse voltage IR = 100 μA, TJ = 25°C
(2)
IR = 5 μA, TJ = 25°C
100
VR 75
Reverse current
(2)
VR = 20 V, TJ = 25°C VR = 75 V, TJ = 25°C
Junction capacitance
1 MHz, VR=0V
Reverse recovery time Notes:
IF= 10mA , VR=6V, RL= 100Ω , IRR= 1mA
1. Pulse test with PW=0.3 ms
2. Pulse test with PW=30 ms
-
IR -
CJ
-
trr
-
MAX 0.72 1.00 1.00
25 5 4 4
UNIT
V
V nA μA pF ns
ORDERING INFORMATION
PART NO.
PACKAGE
1N4148 R0G
DO-35
1N4148 R0
DO-35
1N4148 A0G
DO-35
1N4148 A0
DO-35
1N4448 R0G
DO-35
1N4448 R0
DO-35
1N4448 A0G
DO-35
1N4448 A0
DO-35
1N914B R0G
DO-35
1N914B R0
DO-35
1N914B A0G
DO-35
1N914B A0
DO-35
PACKING 10K / 14" Reel 10K / 14" Reel 5K / Box(Ammo) 5K / Box(Ammo) 10K / 14" Reel 10K / 14" Reel 5K / Box(Ammo) 5K / Box(Ammo) 10K / 14" Reel 10K / 14" Reel 5K / Box(Ammo) 5K / Box(Ammo)
2
Version:J1804
1N4148 / 1N4448 / 1N914B
Taiwan Semiconductor
Forward Current (A)
CHARACTERISTICS CURVES
(TA = 25°C unless otherwise noted) Fig.1 Typical Forward Characteristics
1
TA=25°C 0.1
0.01
Fig. 2 Reverse Current VS. Reverse Voltage
10000 100°C
1000
70°C
100 50°C
10
TA=25°C
Reverse Current :lR (nA)
0.001 0
0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 Forward Voltage (V)
1
0
20
40
60
80
100 120
Reverse Voltage : VR (V)
Power Dissipation (mW)
Fig.3 Admissible Power Dissipation Curve
500
400
300
200
100
0 0 25 50 75 100 125 150 175 200 Ambient Temperature (oC)
Junction Capacitance (pF)
Fig.4 Typical Junction Capacitance
1.5
1.2
f=1.0 MHz
0.9
0.6
0.3
0
0
5
10
15
20
25
30
Reverse Voltage (V)
3
Version:J1804
PACKAGE OUTLINE DIMENSION
DO-35
1N4148 / 1N4448 / 1N914B
Taiwan Semiconductor
DIM.
A B C D
Unit (mm)
Min
Max
0.34
0.60
2.90
5.08
25.40
38.10
1.30
2.28
Unit (inch)
Min
Max
0.013
0.024
0.114
0.200
1.000
1.500
0.051
0.090
MARKING DIAGRAM
4
Version:J1804
1N4148 / 1N4448 / 1N914B
Taiwan Semiconductor
Notice
Specifications of the products displayed herein are subject to change without notice. TSC or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, to any intellectual property rights is granted by this document. Except as provided in TSC’s terms and conditions of sale for such products, TSC assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of TSC products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify TSC for any damages resulting from such improper use or sale.
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Version:J1804
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