UDZS Series Diodes Zener diode UDZS Series !External dimensions (Units : mm) !Applications Constant voltage control 2.5±0.2 !Features 1) Compact, 2-pin mini-mold type for high-density mounting. (UMD2) 2) Non-wire bonding structure improves. 3) High demand voltage range (5.1V-10V) is manufactured on high-efficient non-wire bonding production line. (All leads have the same dimensions.) 0.7 Symbol Limits Unit Power dissipation P 200 mW Junction temperature Tj 150 °C Storage temperature Tstg −55~+150 °C Operating temperature Topr −55~+150 °C !Markings (Type No.) Product name Type No. Product name A 2 UDZS 7.5B UDZS 5.6B C 2 UDZS 6.2B E 2 UDZS 6.8B F 2 (Ex.) UDZS 5.1B A 2 +0.2 −0.1 * Type No. stamped on body in digital marking. ROHM : UMD2 EIAJ : SC-76 JEDEC : SOD-323 !Absolute maximum ratings (Ta = 25°C) UDZS 5.1B 0.1 0.3±0.05 1.25±0.1 !Construction Silicon epitaxial planar Parameter 1.7±0.1 CATHODE MARK Type No. H 2 UDZS 8.2B J 2 UDZS 9.1B L 2 UDZS 10B 0 5 +0.1 −0.05 UDZS Series Diodes !Electrical characteristics (Ta = 25°C) Operating resistance Rising operating resistance Zener voltage VZ (V) Type ZZ (Ω) Reverse current ZZk (Ω) Max. IZ (mA) IR (µA) Max. IZ (mA) Max. VR (V) Min. Max. IZ (mA) UDZS 5.1B 4.980 5.200 5 80 5 500 0.5 2 1.5 UDZS 5.6B 5.490 5.730 5 60 5 200 0.5 1 2.5 UDZS 6.2B 6.060 6.330 5 60 5 100 0.5 1 3.0 UDZS 6.8B 6.650 6.930 5 40 5 60 0.5 0.5 3.5 UDZS 7.5B 7.280 7.600 5 30 5 60 0.5 0.5 4.0 UDZS 8.2B 8.020 8.360 5 30 5 60 0.5 0.5 5.0 UDZS 9.1B 8.850 9.230 5 30 5 60 0.5 0.5 6.0 UDZS 10B 9.770 10.210 5 30 5 60 0.5 0.1 7.0 Notes) 1. The Zener voltage (Vz) is measured 40ms after power is supplied. 2. The operating resistances (Zz, Zzk) are measured by superimposing a minute alternating current on the regulated current (Iz). 300 10 5.1 5.6 6.2 6.8 7.5 8.2 9.1 100m POWER DISSIPATION : Pd (mW) ZENER CURRENT : IZ (A) 10m 1m 100µ 10µ 1µ 100n 10n 0 5 10 15 ZENER VOLTAGE : VZ (V) Fig.1 Zener voltage characteristics 200 100 0 0 25 50 100 AMBIENT TEMPERATURE : Ta (°C) Fig.2 Derating curve 150 TEMP. COEFFICIENT CHARACTERISTICS (% / ˚C) !Electrical characteristic curves (Ta = 25°C) 0.10 Iz=5mA 0.08 Iz=500µA 0.06 0.04 0.02 0.00 −0.02 2 10 20 30 ZENER VOLTAGE : Vz (V) −0.04 −0.06 −0.08 Fig.3 Zener voltage-temp. coefficient characteristics ∗UDZS series : VZ = 5.1V~10V