Applications
CRDs offer a compact and reliable solution for keeping the current constant.
The CRD E series products come in the DO-35 style package with DHD (double heat sink diode) construction
– Hermetically sealed, high reliability package
– Suitable for mass production due to lower cost materials
– Compact device offered in the DO-35 (300 mW) package
18mA CRD (E-183)
With the addition of an 18mA CRD to our product lineup (up from 15mA), it is now possible to supply constant current to 20mA high brightness LEDs for luminance stabilization.
- Constant current source for
LED brightness stabilization
- LED street lights, LED fluorescent lamps, LED light bulbs,
LED downlights
- Constant voltage circuit for supplying constant current to Zener diodes
- Constant current source for proximity sensors and other sensors
- Battery charge / discharge circuits
- Electrolytic capacitor aging equipment
- Constant current test equipment for various semiconductor devices
- Telecommunications line interface
- Earth leakage circuit breakers
- Current source for piezoelectric actuators
- Stabilized power supply circuits
Rating
（Ambient temperature: 25 ±3℃, 45~75% relative humidity）
| Item |
Condition |
Rating |
| Rated power |
See drawing below |
300mW |
| Rated voltage (pulse wave) |
− |
100V(E-101〜E-562) |
| 50V(E-822〜-E183) |
| Allowable Reverse current |
− |
50mA |
| Junction temperature |
− |
150℃ |
| Operating temperature range |
− |
-30℃〜150℃ |
Mounting
Specifications
| Part No. |
Pinch-off current lp (mA)1
Test voltage V = 10(V) |
Limiting current2 |
Limiting current ratio |
Temperature coefficient (25℃ to 50℃) |
Max rated voltage |
Marking |
| typical |
min - max |
Vk
[V] |
Ik
[mA] |
I100Ｖ/Ip
I30Ｖ/Ip |
[％/℃] |
Ｖmax.
[V] |
| E-101 |
0.10 |
0.05～0.21 |
0.5 |
min.0.8 lp |
max.1.1 |
+2.10～+0.10 |
100 |
01 |
| E-301 |
0.30 |
0.20～0.42 |
0.8 |
min.0.8 lp |
max.1.1 |
+0.40～-0.20 |
100 |
03 |
| E-501 |
0.50 |
0.40～0.63 |
1.1 |
min.0.8 lp |
max.1.1 |
+0.15～-0.25 |
100 |
05 |
| E-701 |
0.70 |
0.60～0.92 |
1.4 |
min.0.8 lp |
max.1.1 |
0.00～-0.32 |
100 |
07 |
| E-102 |
1.00 |
0.88～1.32 |
1.7 |
min.0.8 lp |
max.1.1 |
-0.10～-0.37 |
100 |
10 |
| E-152 |
1.50 |
1.28～1.72 |
2.0 |
min.0.8 lp |
max.1.1 |
-0.13～-0.40 |
100 |
15 |
| E-202 |
2.00 |
1.68～2.32 |
2.3 |
min.0.8 lp |
max.1.1 |
-0.15～-0.42 |
100 |
20 |
| E-272 |
2.70 |
2.28～3.10 |
2.7 |
min.0.8 lp |
max.1.1 |
-0.18～-0.45 |
100 |
27 |
| E-352 |
3.50 |
3.00～4.10 |
3.2 |
min.0.8 lp |
max.1.1 |
-0.20～-0.47 |
100 |
35 |
| E-452 |
4.50 |
3.90～5.10 |
3.7 |
min.0.8 lp |
max.1.1 |
-0.22～-0.50 |
100 |
45 |
| E-562 |
5.60 |
5.00～6.50 |
4.5 |
min.0.8 lp |
max.1.1 |
-0.25～-0.53 |
100 |
56 |
| E-822 |
8.20 |
6.56～9.84 |
3.1 |
min.0.8 lp |
3max.1.0 |
-0.25～-0.45 |
30 |
82 |
| E-103 |
10.00 |
8.00～12.0 |
3.5 |
min.0.8 lp |
3max.1.0 |
-0.25～-0.45 |
30 |
10 |
| E-123 |
12.00 |
9.60～14.4 |
3.8 |
min.0.8 lp |
3max.1.0 |
-0.25～-0.45 |
30 |
12 |
| E-153 |
15.00 |
12.0～18.0 |
4.3 |
min.0.8 lp |
3max.1.0 |
-0.25～-0.45 |
25 |
15 |
| E-183 |
18.00 |
16.0～20.0 |
4.6 |
min.0.8 lp |
3max.1.0 |
-0.25～-0.45 |
25 |
18 |
1, 2Temperature coefficient is measured at 25℃
3I30V/IP
