DCR253 MICROSEMI, DCR253 Datasheet

DCR253

Manufacturer Part Number

DCR253

Description

Manufacturer

MICROSEMI

Datasheet

1.DCR253.pdf (1 pages)

Specifications of DCR253

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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

IMPEDANCE

@V K = 6.0 V

MINIMUM

(Note 3)

Z K (K )

KNEE

4.0

3.0

2.0

1.5

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

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

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