LL4148/LL4448/LL914B 500mW High Speed SMD Switching Diode Small Signal Diode Mini-MELF (LL34) HERMETICALLY SEALED GLASS C Features Fast switching device(Trr<4.0nS) Surface device type mounting B Moisture sensitivity level 1 D Matte Tin(Sn) lead finish with Nickel(Ni) underplate Pb free version and RoHS compliant All External Surfaces are Corrosion Resistant and Leads are Readily Solderable A Unit (mm) Unit (inch) Min Max Min A 3.30 3.70 0.130 0.146 Dimensions Mechanical Data Case : Mini-MELF Package (JEDEC DO-213AC) Max High temperature soldering guaranteed : 270°C/10s B 1.40 1.60 0.055 0.063 Polarity : Indicated by cathode band C 0.25 0.40 0.010 0.016 Weight : 50.8 ± 0.5 mg D 1.25 1.40 0.049 0.055 Ordering Information Part No. Package Packing LLxxxx L1 Mini-MELF 2.5Kpcs / 7" Reel LLxxxx L0 Mini-MELF 10Kpcs / 13" Reel Maximum Ratings and Electrical Characteristics Rating at 25°C ambient temperature unless otherwise specified. Maximum Ratings Type Number Symbol Value Units PD 500 mW Non-Repetitive Peak Reverse Voltage VRSM 100 V Repetitive Peak Reverse Voltage VRRM 75 V Power Dissipation Peak Forward Surge Current Pulse Width 8.3ms IFSM A 2.0 Non-Repetitive Peak Forward Current IFM 450 mA Mean Forward Current IO 150 mA RθJA 300 °C/W TJ, TSTG -65 to + 200 °C Thermal Resistance (Junction to Ambient) (Note 1) Junction and Storage Temperature Range Electrical Characteristics Type Number Reverse Breakdown Voltage Min Symbol IR=100uA IR=5uA Max 100 V(BR) Units V 75 Forward Voltage LL4448, LL914B IF=5.0mA LL4148 IF=10.0mA LL4448, LL914B Reverse Leakage Current Junction Capacitance Reverse Recovery Time (Note 2) VF 0.62 VR=20V VR=0, f=1.0MHz 1.0 V 1.0 IF=100.0mA VR=75V 0.72 25 nA 5.0 μA CJ 4.0 pF Trr 4.0 ns IR Notes:1. Valid provided that electrodes are kept at ambient temperature Notes:2. Reverse Recovery Test Conditions: IF=IR=10mA, RL=100Ω, IRR=1mA Version : D09 LL4148/LL4448/LL914B 500mW High Speed SMD Switching Diode Small Signal Diode Rating and Sharacteristic Curves FIG 1 Typical Forward Characteristics FIG 2 Reverse Current vs Reverse Voltage 100 Reverse Current (uA) Forward Current (A) 1 0.1 Ta=25°C 0.01 10 Ta=25°C 1 0.1 0.001 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 0.01 0 20 Forward Voltage (V) 60 80 100 120 Reverse Voltage (V) FIG 4 Typical Junction Capacitance FIG 3 Admissible Power Dissipation Curve 1.5 Junction Capacitance (pF) 500 Power Dissipation (mW) 40 400 300 200 100 0 1.2 0.9 0.6 0.3 0 0 25 50 75 100 125 150 175 200 0 5 10 15 20 25 30 Reverse Voltage (V) Ambient Temperature (°C) FIG 5 Forward Resistance vs. Forward Current Dynamic Forward Resistance (Ώ) 10000 1000 100 10 1 0 0 1 Forward Current (mA) 10 100 Version : C09