Varistors MA2C029 Series Silicon epitaxial planar type variable resistor For temperature and reduced voltage compensation Unit : mm φ 0.45 max. • High reliability achieved through combination of a planar type chip and glass sealing structure • Easy mounting because of employing DO-35 (DHD) envelope • Extremely small reverse current IR • Large power dissipation • Wide forward voltage VF range COLORED BAND INDICATES CATHODE 1 2.2 ± 0.3 0.2 max. 13 min. ■ Features Parameter Rating Unit VR 6 V MA2C0290A/B Forward current (DC) MA2C029WA/WB IFM 150 mA 2 100 MA2C029TA/TB 70 MA2C029QA/QB 50 13 min. Symbol Reverse voltage (DC) 0.2 max. ■ Absolute Maximum Ratings Ta = 25°C φ 1.75 max. Power dissipation Ptot 150 mW Junction temperature Tj 150 °C Storage temperature Tstg −55 to +150 °C 1：Cathode 2：Anode JEDEC：DO-34 ■ Electrical Characteristics Ta = 25°C Parameter Reverse current (DC) Forward voltage (DC) Forward voltage (DC) Temperature coefficient of forward voltage Symbol MA2C0290A/B MA2C029WA/WB MA2C029TA/TB MA2C029QA/QB MA2C0290A MA2C0290B MA2C029WA/WB MA2C029TA/TB MA2C029QA/QB MA2C0290A/B MA2C029WA MA2C029WB MA2C029TA MA2C029TB MA2C029QA MA2C029QB MA2C0290A/B MA2C029WA/WB MA2C029TA/TB MA2C029QA/QB IR VF1 Conditions IF = 1.5 mA −∆VF/∆T Typ 0.56 0.59 0.77 1.15 1.60 VF1 = 10 µA VF2 Min VR = 6 V VR = 6 V IF = 50 mA IF = 3 mA 1.18 1.26 1.76 1.88 2.20 2.34 IF = 1.5 mA (Tj = 25°C to +150°C) IF = 3 mA (Tj = 25°C to +150°C) 2.0 4.6 6.5 8.8 Max Unit 10 1 µA 0.61 0.64 V 1.1 1.28 1.36 1.92 2.04 2.40 2.54 V mV/°C Note) Rated input/output frequency: 100 MHz ■ Cathode Indication Type No. MA2C0290A Color Red MA2C0290B MA2C029WA MA2C029WB Blue Light Blue Brown MA2C029TA* MA2C029TB* MA2C029QA* MA2C029QB* Yellow Blue Green Brown Note) * : Body Color ; Black 1 MA2C029 Series Varistors Characteristics charts of MA2C029 Characteristics charts of MA2C029Q IF V F VF Ta 1 000 1.0 Ta = 25°C IF = 1.5 mA 100°C 20°C 25°C Ta = 150°C MA2C0290A 10 MA2C0290B 1 0.1 0.6 Forward current IF (mA) 0.8 Forward voltage VF (V) Forward current IF (mA) 100 IF VF 100 MA2C0290B MA2C0290A 0.4 10 1 0.1 0.2 MA2C029QA 0.01 0 0.2 0.4 0.6 0.8 0 −40 1.0 Forward voltage VF (V) 0 40 80 120 160 0.01 MA2C029QB 0 Ambient temperature Ta (°C) 0.8 1.6 2.4 3.2 4.0 4.8 Forward voltage VF (V) Characteristics charts of MA2C029W IF VF 1 000 VF Ta Ta = 25°C 1.6 MA2C029WB 1 1.2 MA2C029WB MA2C029WA 0.8 0.4 0.1 0 0.4 0.8 1.2 1.6 2.0 0 −40 2.4 0 40 80 120 160 IF VF VF Ta 2.5 2.0 MA2C029TB Forward voltage VF (V) Forward current IF (mA) IF = 3 mA MA2C029TA 10 1 0.1 MA2C029TA 1.5 MA2C029TB 1.0 0.5 0 1 2 3 Forward voltage VF (V) 2 4 0 −40 IF = 50 mA 2 3 mA 0 40 80 120 Ambient temperature Ta (°C) 0 −40 0.01 mA 0 40 80 120 160 Ambient temperature Ta (°C) Characteristics charts of MA2C029T Ta = 25°C 3 1 Ambient temperature Ta (°C) Forward voltage VF (V) 100 MA2C029QA MA2C029QB 4 Forward voltage VF (V) Forward voltage VF (V) Forward current IF (mA) MA2C029WA 10 0.01 5 IF = 3 mA 100 0.01 VF Ta 2.0 160 200