Document
Small Signal Product
CREAT BY ART
LL4148/LL4448/LL914B
Taiwan Semiconductor
High Speed SMD Switching Diode
FEATURES
- Fast switching device (trr<4.0ns) - Surface device type mounting - Matte Tin(Sn) terminal finish - Pb free version and RoHS compliant
MECHANICAL DATA
- Case: Mini-MELF Package - High temperature soldering guaranteed: 270°C/10s - Polarity: Indicated by black cathode band - Weight: 31mg (approximately)
MINI MELF
Hermetically Sealed Glass
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS (TA=25℃ unless otherwise noted)
PARAMETER
SYMBOL
VALUE
Power Dissipation Repetitive Peak Reverse Voltage
PD VRRM
500 75
Reverse Voltage
VR 75
Peak Forward Surge Current (Note 1)
IFSM
2
Non-Repetitive Peak Forward Current Mean Forward Current
IFM IF(AV)
450 150
Forward Continuous Current
IF 150
Repetitive Peak Forward Current
IFRM
450
Thermal Resistance (Junction to Ambient) (Note 2) Junction and Storage Temperature Range
RθJA TJ , TSTG
300 -65 to +175
PARAMETER
SYMBOL
Reverse Breakdown Voltage
IR=100μA IR=5μA
V(BR)
Forward Voltage
LL4448, LL914B LL4148
LL4448, LL914B
Reverse Leakage Current
IF=5 mA IF=50 mA IF=100 mA VR=20V VR=75V
VF IR
Junction Capacitance Reverse Recovery Time
VR=0 (Note 3)
f=1.0MHz
CJ trr
MIN 100 75
-
0.62 -
MAX -
0.72 1 1 25 5 4 4
Note 1: Test condition : 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) Note 2: Valid provided that electrodes are kept at ambient temperature Note 3: Reverse recovery test conditions : IF=IR=10mA, RL=100Ω, IRR=1mA
UNIT mW
V V A mA mA mA mA oC/W oC
UNIT
V
V
nA μA pF ns
Document Number: DS_S1408022
Version: J15
Small Signal Product
RATINGS AND CHARACTERISTICS CURVES
(TA=25°C unless otherwise noted)
1500
Fig. 1 Typical Forward Characteristics
Instantaneous Forward Current (mA)
1200
900
600
300
0 0.001
0.01 0.1 1 10 100 Instantaneous Forward Voltage (V)
1000
Reverse Current (μA)
LL4148/LL4448/LL914B
Taiwan Semiconductor
Fig. 2 Reverse Current VS. Reverse Voltage 100
10
1
0.1
0.01 0
20 40 60 80 100 120 Reverse Voltage (V)
Power Dissipation (mW)
600 500 400 300 200 100
0 0
Fig. 3 Admissible Power Dissipation Curve
50 100 150 Ambient Temperature (oC)
200
10000
Fig. 5 Forward Resistance VS. Forward Current
1000
100
10
1 0.01
0.1 1 10 Forward Current (mA)
100
Dynamic Forward Resistance (Ohm)
Document Number: DS_S1408022
Junction Capacitance (pF)
1.5 1.2 0.9 0.6 0.3 0.0
0
Fig. 4 Typical Junction Capacitance
5 10 15 20 25 30 Reverse Voltage (V)
Version: J15
Small Signal Product
ORDER INFORMATION (EXAMPLE)
LL4148 L0G
Green compound code
Packing code Part no.
PACKAGE OUTLINE DIMENSION
C
B
SUGGEST PAD LAYOUT
A
LL4148/LL4448/LL914B
Taiwan Semiconductor
DIM.
A B C
Unit (mm)
Min 3.30 1.40 0.20
Max 3.70 1.60 0.50
Unit (inch)
Min 0.130 0.055 0.008
Max 0.146 0.063 0.020
DIM.
A B C D
Unit (mm)
Typ. 1.25 2.00 2.50 5.00
Unit (inch)
Typ. 0.049 0.079 0.098 0.197
Document Number: DS_S1408022
Version: J15
Small Signal Product
LL4148/LL4448/LL914B
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 seling 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.
Document Number: DS_S1408022
Version: J15
.