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DCR252 Datasheet(PDF) 1 Page - Microsemi Corporation |
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DCR252 Datasheet(HTML) 1 Page - Microsemi Corporation |
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1 / 1 page 6 LAKE STREET, LAWRENCE, MASSACHUSETTS 01841 PHONE (978) 620-2600 FAX (978) 689-0803 WEBSITE: http://www.microsemi.com 83 • CURRENT REGULATOR DIODES • CONSTANT CURRENT OVER WIDE VOLTAGE RANGE • HIGH SOURCE IMPEDANCE • METALLURGICALLY BONDED • DOUBLE PLUG CONSTRUCTION DCR250 thru DCR257 FIGURE 1 DESIGN DATA CASE: Hermetically sealed glass case. DO-7 outline. LEAD MATERIAL: Copper clad steel. LEAD FINISH: Tin / Lead THERMAL RESISTANCE: (ROJEC): 250 °C/W maximum at L = .375 inch THERMAL IMPEDANCE: (ZOJX): 25 °C/W maximum POLARITY: Diode to be operated with the banded (cathode) end negative. MOUNTING POSITION: Any ELECTRICAL CHARACTERISTICS @ 25°C, unless otherwise specified MINIMUM MINIMUM DYNAMIC KNEE MAXIMUM TYPE REGULATOR CURRENT IMPEDANCE IMPEDANCE LIMITING PEAK NUMBER l p (mA) @ VS = 25V @VS = 25V @VK = 6.0 V VOLTAGE OPERATING (Note 1) ZS (K) ZK(K) @ lL = 0.8 l p (min) VOLTAGE NOM MIN MAX (Note 2) (Note 3) VL (VOLTS) VOLTS DCR250 5.10 4.59 5.61 100 4.0 3.67 80 DCR251 5.60 5.04 6.16 90 4.0 4.03 80 DCR252 6.20 5.58 6.82 80 3.0 4.46 70 DCR253 6.80 6.12 7.48 70 2.0 4.90 70 DCR254 7.50 6.75 8.25 50 1.5 5.40 60 DCR255 8.20 7.38 9.02 30 1.5 5.90 60 DCR256 9.10 8.19 10.01 20 1.0 6.55 50 DCR257 10.00 9.00 11.10 10 1.0 7.20 50 NOTE 1 Pulse measurement @ 1% duty cycle, 10 milliseconds maximum. NOTE 2 ZS is derived by superimposing A 90Hz RMS signal equal to 10% of VS on VS NOTE 3 ZK is derived by superimposing A 90Hz RMS signal equal to 10% of VK on VK MAXIMUM RATINGS Operating Temperature: -65°C to +175°C Storage Temperature: -65°C to +175°C DC Power Dissipation: 500 mW @ +50°C @ TL = 3/8” Power Derating: 4 mW / °C above +50°C |
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