• CURRENT REGULATOR DIODES
• LEADLESS PACKAGE FOR SURFACE MOUNT
• CONSTANT CURRENT OVER WIDE VOLTAGE RANGE
• HIGH SOURCE IMPEDANCE
• METALLURGICALLY BONDED
CDLL250
thru
CDLL257
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
ELECTRICAL CHARACTERISTICS
@ 25°C, unless otherwise specified
TYPE
NUMBER
REGULATOR CURRENT
l p (mA) @ VS = 25V
(Note 1)
NOM
MIN
4.59
5.04
5.58
6.12
6.75
7.38
8.19
9.00
MAX
5.61
6.16
6.82
7.48
8.25
9.02
10.01
11.10
5.10
5.60
6.20
6.80
7.50
8.20
9.10
10.00
MINIMUM
DYNAMIC
IMPEDANCE
@VS = 25V
ZS (KΩ)
(Note 2)
100
90
80
70
50
30
20
10
MINIMUM
KNEE
IMPEDANCE
@VK = 6.0 V
ZK(KΩ)
(Note 3)
4.0
4.0
3.0
2.0
1.5
1.5
1.0
1.0
MAXIMUM
LIMITING
VOLTAGE
@ lL = 0.8 l p (min)
VL (VOLTS)
3.67
4.03
4.46
4.90
5.40
5.90
6.55
7.20
DIM
D
F
G
G1
S
PEAK
OPERATING
VOLTAGE
VOLTS
80
80
70
70
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
CDLL250
CDLL251
CDLL252
CDLL253
CDLL254
CDLL255
CDLL256
CDLL257
DESIGN DATA
CASE:
DO-213AB, Hermetically sealed
glass case. (MELF, LL41)
LEAD FINISH:
Tin / Lead
THERMAL RESISTANCE: (R
OJEC):
100 ˚C/W maximum at L = 0 inch
NOTE 1
NOTE 2
NOTE 3
Pulse measurement @ 1% duty cycle, 10 milliseconds maximum.
ZS is derived by superimposing A 90Hz RMS signal equal to 10% of VS on VS
ZK is derived by superimposing A 90Hz RMS signal equal to 10% of VK on VK
THERMAL IMPEDANCE: (Z
OJX): 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: mail@cdi-diodes.com
CDI-DIODE [ COMPENSATED DEUICES INCORPORATED ]
