LESHAN RADIO COMPANY, LTD. High-Speed Switching Diode MMBD914LT1 1 ANODE 3 CATHODE 3 1 2 MAXIMUM RATINGS Rating Reverse Voltage Forward Current Peak Forward Surge Current CASE 318-08, STYLE 8 Symbol VR IF I FM(surge) Value 100 200 500 Unit Vdc mAdc mAdc Symbol PD Max 225 Unit mW R JA PD 1.8 556 300 mW/C C/W mW R JA T J , T stg 2.4 417 -55 to +150 mW/C C/W C SOT- 23 (TO-236AB) THERMAL CHARACTERISTICS Characteristic Total Device Dissipation FR- 5 Board (1) T A = 25C Derate above 25C Thermal Resistance, Junction to Ambient Total Device Dissipation Alumina Substrate, (2) T A = 25C Derate above 25C Thermal Resistance, Junction to Ambient Junction and Storage Temperature DEVICE MARKING MMBD914LT1 = 5D ELECTRICAL CHARACTERISTICS (T A = 25C unless otherwise noted) Characteristic Symbol Min Max Unit V (BR) 100 -- Vdc OFF CHARACTERISTICS Reverse Breakdown Voltage (I R = 100 Adc) Reverse Voltage Leakage Current (V R = 20 Vdc) (V R IR -- 25 nAdc -- 5.0 Adc CT -- 4.0 pF VF -- 1.0 Vdc t rr -- 4.0 ns = 75 Vdc) Diode Capacitance (V R = 0, f = 1.0 MHz) Forward Voltage (I F = 10 mAdc) Reverse Recovery Time (I F = I R = 10 mAdc) (Figure 1) 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. G19-1/2 LESHAN RADIO COMPANY, LTD. MMBD914LT1 +10 V 2.0 k 820 100 H IF tp tr 0.1F IF t t rr 10% 0.1 F t 90% DUT 50 INPUT SAMPLING OSCILLOSCOPE 50 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 k 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 10 I R, REVERSE CURRENT ( A) TA = 85C T A= -40C 10 T A = 25C 1.0 T A =150C T A =125C 1.0 T A =85C 0.1 T A =55C 0.01 T A =25C 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 0.68 C D , DIODE CAPACITANCE (pF) I F , FORWARD CURRENT (mA) 100 0.64 0.60 0.56 0.52 0 2.0 4.0 6.0 8.0 V R , REVERSE VOLTAGE (VOLTS) Figure 4. Capacitance G19-2/2