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DCR252 Datasheet(PDF) 1 Page - Microsemi Corporation

Part # DCR252
Description  CURRENT REGULATOR DIODES
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Manufacturer  MICROSEMI [Microsemi Corporation]
Direct Link  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

DCR252 Datasheet(HTML) 1 Page - Microsemi Corporation

  DCR252 Datasheet HTML 1Page - Microsemi Corporation  
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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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