DCR254 MICROSEMI, DCR254 Datasheet
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DCR254
Manufacturer Part Number
DCR254
Description
Manufacturer
MICROSEMI
Datasheet
1.DCR254.pdf
(1 pages)
Specifications of DCR254
Lead Free Status / RoHS Status
Not Compliant
ELECTRICAL CHARACTERISTICS @ 25°C, unless otherwise specified
MAXIMUM RATINGS
Operating Temperature: -65°C to +175°C
Storage Temperature: -65°C to +175°C
DC Power Dissipation: 500 mW @ +50°C @ T L = 3/8”
Power Derating: 4 mW / °C above +50°C
NUMBER
• CURRENT REGULATOR DIODES
• CONSTANT CURRENT OVER WIDE VOLTAGE RANGE
• HIGH SOURCE IMPEDANCE
• METALLURGICALLY BONDED
• DOUBLE PLUG CONSTRUCTION
NOTE 1
NOTE 2
NOTE 3
DCR250
DCR251
DCR252
DCR253
DCR254
DCR255
DCR256
DCR257
TYPE
NOM
10.00
Pulse measurement @ 1% duty cycle, 10 milliseconds maximum.
Z S is derived by superimposing A 90Hz RMS signal equal to 10% of V S on V S
Z K is derived by superimposing A 90Hz RMS signal equal to 10% of V K on V K
5.10
5.60
6.20
6.80
7.50
8.20
9.10
REGULATOR CURRENT
l p (mA) @ V S = 25V
(Note 1)
4.59
5.04
5.58
6.12
6.75
7.38
8.19
9.00
MIN
10.01
11.10
MAX
5.61
6.16
6.82
7.48
8.25
9.02
6 LAKE STREET, LAWRENCE, MASSACHUSETTS 01841
PHONE (978) 620-2600
WEBSITE: http://www.microsemi.com
IMPEDANCE
@V S = 25V
DYNAMIC
MINIMUM
(Note 2)
Z S (K )
100
90
80
70
50
30
20
10
IMPEDANCE
@V K = 6.0 V
MINIMUM
(Note 3)
Z K (K )
KNEE
4.0
4.0
3.0
2.0
1.5
1.5
1.0
1.0
@ l L = 0.8 l p (min)
V L (VOLTS)
MAXIMUM
VOLTAGE
LIMITING
3.67
4.03
4.46
4.90
5.40
5.90
6.55
7.20
OPERATING
VOLTAGE
VOLTS
PEAK
80
80
70
70
60
60
50
50
FAX (978) 689-0803
DESIGN DATA
CASE: Hermetically sealed glass case.
LEAD MATERIAL: Copper clad steel.
LEAD FINISH: Tin / Lead
THERMAL RESISTANCE: (R OJEC ):
250
THERMAL IMPEDANCE: (Z OJX ): 25
°
POLARITY: Diode to be operated with
the banded (cathode) end negative.
MOUNTING POSITION: Any
C/W maximum
°
C/W maximum at L = .375 inch
DO-7 outline.
DCR250
DCR257
FIGURE 1
thru
83