1N5312UR-1 Microchip

1N5283UR-1 thru 1N5314UR-1 Qualified Levels: CURRENT REGULATOR DIODES JAN, JANTX, JANTXV Available on Qualified per MIL-PRF-19500/463 and JANS commercial versions DESCRIPTION The popular 1N5283UR-1 thru 1N5314UR-1 series of 0.5 watt current regulators provides a selection from 0.22 mA to 4.7 mA in standard 10% tolerances. These devices regulate current over a broad voltage range as a counter part offering to Zeners (that regulate voltage over a broad current range). The DO-213AB package offers a double plug internal bond connection with a large die element for its unique function as a current limiter. Microsemi also offers numerous other Zener products to meet higher and lower power voltage regulation applications. DO-213AB Important: For the latest information, visit our website 1N5283UR-1 thru 1N5314UR-1 MECHANICAL and PACKAGING CASE: Hermetically sealed glass case. TERMINALS: Tin/lead finished copper clad steel or RoHS compliant matte-tin finish available (commercial grade only). MARKING: Cathode band. POLARITY: Diode to be operated with the banded (cathode) end negative. MOUNTING SURFACE SELECTION: The Axial Coefficient of Expansion (COE) of this device is approximately +6PPM/C. The COE of the Mounting Surface System should be selected to provide a suitable match with this device. WEIGHT: 0.2 grams. See Package Dimensions on last page. PART NOMENCLATURE JAN 1N5283 UR -1 (e3) Reliability Level RoHS Compliance JAN = JAN Level e3 = RoHS Compliant (available JANTX = JANTX Level on commercial grade only) JANTXV = JANTXV Level Blank = non-RoHS Compliant JANS = JANS Level Blank = Commercial Metallurgically Bonded JEDEC type number Surface Mount Package Type (see Electrical Characteristics table) SYMBOLS & DEFINITIONS Symbol Definition I Limiting Current: A specified current below the lower knee of the current-regulating characteristic. L I Regulator current: A current within the regulating range of a current-regulator diode. S P Power Dissipation: The power dissipation, dc. D Thermal Resistance Junction-to-Lead: The thermal resistance from the virtual junction(s) of a semiconducter device to R JL the lead. Lead Temperature: The temperature of a lead terminal. T L T Temperature Solder Pad: The maximum solder temperature that can be safely applied to the terminal. SP V Knee Voltage: A specified regulator voltage near the lower knee of the current-regulating characteristic. K V Limiting Voltage: The voltage at point I on the current-voltage characteristic. L L V Regulator Voltage: A voltage within the regulating range of a current-regulating diode. S Knee Impedance: The small-signal impedance at operating point VK on the current-voltage characteristic. z k Regulator Impedance: The small-signal impedance within the regulating range of a current-regulator diode. z s Thermal Impedance: The thermal impedance junction to reference point. Z JX T4-LDS-0160, Rev. 2 (111541) 2011 Microsemi Corporation Page 2 of 6