CDI-DIODE CDLL255

• CURRENT REGULATOR DIODES
CDLL250
thru
CDLL257
• LEADLESS PACKAGE FOR SURFACE MOUNT
• CONSTANT CURRENT OVER WIDE VOLTAGE RANGE
• HIGH SOURCE IMPEDANCE
• METALLURGICALLY BONDED
MAXIMUM RATINGS
Operating Temperature: -65°C to +175°C
Storage Temperature: -65°C to +175°C
DC Power Dissipation: 500 mW @ +50°C
Power Derating: 4 mW / °C above +50°C
DIM
D
F
G
G1
S
ELECTRICAL CHARACTERISTICS @ 25°C, unless otherwise specified
TYPE
NUMBER
REGULATOR CURRENT
l p (mA) @ VS = 25V
(Note 1)
MINIMUM
DYNAMIC
IMPEDANCE
@VS = 25V
ZS (KΩ)
MINIMUM
KNEE
IMPEDANCE
@VK = 6.0 V
ZK(KΩ)
MAXIMUM
LIMITING
VOLTAGE
@ lL = 0.8 l p (min)
PEAK
OPERATING
VOLTAGE
NOM
MIN
MAX
(Note 2)
(Note 3)
VL (VOLTS)
VOLTS
CDLL250
CDLL251
CDLL252
CDLL253
5.10
5.60
6.20
6.80
4.59
5.04
5.58
6.12
5.61
6.16
6.82
7.48
100
90
80
70
4.0
4.0
3.0
2.0
3.67
4.03
4.46
4.90
80
80
70
70
CDLL254
CDLL255
CDLL256
CDLL257
7.50
8.20
9.10
10.00
6.75
7.38
8.19
9.00
8.25
9.02
10.01
11.10
50
30
20
10
1.5
1.5
1.0
1.0
5.40
5.90
6.55
7.20
60
60
50
50
MILLIMETERS
MIN MAX
2.39
2.66
0.41
0.55
4.80
5.20
4.11 REF.
0.03 MIN.
INCHES
MIN MAX
.094 .105
.016 .022
.189 .205
.159 REF.
.001 MIN.
FIGURE 1
DESIGN DATA
CASE: DO-213AB, Hermetically sealed
glass case. (MELF, LL41)
LEAD FINISH: Tin / Lead
THERMAL RESISTANCE: (ROJEC):
100 ˚C/W maximum at L = 0 inch
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
THERMAL IMPEDANCE: (ZOJX): 25
˚C/W maximum
POLARITY: Diode to be operated with
the band (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.
22 COREY STREET, MELROSE, MASSACHUSETTS 02176
PHONE (781) 665-1071
FAX (781) 665-7379
WEBSITE: http://www.cdi-diodes.com
E-mail: [email protected]