LESHAN RADIO COMPANY, LTD. Monolithic Dual Switching Diodes FETURE LMBD2837LT1 LMBD2838LT1 • Pb-Free Package is available. ORDERING INFORMATION Device Marking Shipping A5 3000/Tape&Reel A5(Pb-Free) 3000/Tape&Reel LMBD2837LT1 LMBD2837LT1G LMBD2838LT1 LMBD2838LT1G MA6 3000/Tape&Reel MA6(Pb-Free) 3000/Tape&Reel 3 1 2 MAXIMUM RATINGS(EACH DIODE) Rating Peak Reverse Voltage D.C Reverse Voltage Symbol V RM LMBD2837LT1 LMBD2838LT1 V Value Unit 75 30 50 450 300 150 Vdc Vdc R Peak Forward Current I FM Average Rectified Current IO SOT– 23 (TO–236AB) ANODE 1 mAdc 3 CATHODE mAdc 100 2 ANODE THERMAL CHARACTERISTICS Characteristic Total Device Dissipation FR– 5 Board (1) T A = 25°C Derate above 25°C Thermal Resistance, Junction to Ambient Total Device Dissipation Alumina Substrate, (2) T A = 25°C Derate above 25°C Thermal Resistance, Junction to Ambient Junction and Storage Temperature Symbol PD Max 225 Unit mW R θ JA PD 1.8 556 300 mW/°C °C/W mW R θ JA T J , T stg 2.4 417 –55 to +150 mW/°C °C/W °C DEVICE MARKING LMBD2837LT1 = A5; LMBD2838LT1 = MA6 ELECTRICAL CHARACTERISTICS (T A = 25°C unless otherwise noted) ( EACH DIODE ) Characteristic Symbol Min Max Unit V (BR) 35 — Vdc 75 — OFF CHARACTERISTICS Reverse Breakdown Voltage(I (BR) = 100µAdc) LMBD2837LT1 LMBD2838LT1 Reverse Voltage Leakage Current IR (V R = 30 Vdc) LMBD2837LT1 (V R = 50 Vdc) LMBD2838LT1 Diode Capacitance CT (V R = 0 V, f = 1.0 MHz) Forward Voltage(I F = 10 mAdc) VF (I F = 50 mAdc) (I F = 100 mAdc) Reverse Recovery Time(I F=I R=10mAdc,I R(REC)=1.0mAdc)(Figure 1) t rr 1. FR–5 = 1.0 x 0.75 x 0.062 in. 2. Alumina = 0.4 x 0.3 x 0.024 in. 99.5% alumina. — — µAdc 0.1 0.1 — 4.0 pF — — — — 1.0 1.0 1.2 4.0 Vdc ns G21–1/3 LESHAN RADIO COMPANY, LTD. LMBD2837LT1 LMBD2838LT1 +10 V 2.0 k 820 Ω 100 µH IF tp tr 0.1µF IF t t rr 10% 0.1 µF t 90% DUT 50 Ω INPUT SAMPLING OSCILLOSCOPE 50 Ω OUTPUT PULSE GENERATOR i IR INPUT SIGNAL V R(REC) = 1.0 mA OUTPUT PULSE (I F = I R = 10 mA; MEASURED R at i R(REC) = 1.0 mA) Notes: 1. A 2.0 kΩ variable resistor adjusted for a Forward Current (I F ) of 10mA. Notes: 2. Input pulse is adjusted so I R(peak) is equal to 10mA. Notes: 3. t p » t rr Figure 1. Recovery Time Equivalent Test Circuit CURVES APPLICABLE TO EACH CATHODE 10 I R, REVERSE CURRENT ( µA) T A = 85°C T A= –40°C 10 T A = 25°C 1.0 T A =150°C T A =125°C 1.0 T A =85°C 0.1 T A =55°C 0.01 T A =25°C 0.001 0.1 0.2 0.4 0.6 0.8 1.0 0 1.2 10 20 30 40 V F , FORWARD VOLTAGE (VOLTS) V R , REVERSE VOLTAGE (VOLTS) Figure 2. Forward Voltage Figure 3. Leakage Current 50 1.0 C D , DIODE CAPACITANCE (pF) I F , FORWARD CURRENT (mA) 100 0.9 0.8 0.7 0.6 0 2.0 4.0 6.0 8.0 V R , REVERSE VOLTAGE (VOLTS) Figure 4. Capacitance G21–2/3 LESHAN RADIO COMPANY, LTD. LMBD2837LT1 LMBD2838LT1 SOT-23 NOTES: A 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. L 3 1 V 2 B S DIM G A B C D G H J K L S V C D H K J INCHES MIN MAX 0.1102 0.1197 0.0472 0.0551 0.0350 0.0440 0.0150 0.0200 0.0701 0.0807 0.0005 0.0040 0.0034 0.0070 0.0140 0.0285 0.0350 0.0401 0.0830 0.1039 0.0177 0.0236 MILLIMETERS MIN MAX 2.80 3.04 1.20 1.40 0.89 1.11 0.37 0.50 1.78 2.04 0.013 0.100 0.085 0.177 0.35 0.69 0.89 1.02 2.10 2.64 0.45 0.60 PIN 1. ANODE 2. NO CONNECTION 3. CATHODE 0.037 0.95 0.037 0.95 0.079 2.0 0.035 0.9 0.031 0.8 inches mm G21–3/3