Datasheet CRD (Semitec) - 2
| Hersteller | Semitec |
| Beschreibung | Current regulating diode |
| Seiten / Seite | 2 / 2 — Influence of environment temperature on power and pinch-off current rating |
| Dateiformat / Größe | PDF / 238 Kb |
| Dokumentensprache | Englisch |
Influence of environment temperature on power and pinch-off current rating
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Influence of environment temperature on power and pinch-off current rating How to compensate current reduction due to heat up of the CRD
For currents of 1 mA or more resistors can be used together with 100 CRDs to compensate for current decreases and fluctuations. The following values are typical for compensation resistors. Rated power: 500 mW S-223 10 S-183 Product number S-102 S-152 S-202 S-272 S-352 S-452 S-562 S-822 S-103 S-123 S-153 S-183 S-223 S-153 S-123 Recommended S-103 S-822 resistance value 1.1 MΩ 430 kΩ 300 kΩ 200 kΩ 130 kΩ 91 kΩ 62 kΩ 27 kΩ 18 kΩ 15 kΩ 12 kΩ 9 kΩ 5.6 kΩ S-562 S-452 Rated power: 300 mW S-352 S-272 Product number E-102 E-152 E-202 E-272 E-352 E-452 E-562 E-822 E-103 E-123 E-153 E-183 1 S-202 Recommended S-152 resistance value 1 MΩ 390 kΩ 240 kΩ 120 kΩ 82 kΩ 56 kΩ 39 kΩ 20 kΩ 15 kΩ 11 kΩ 9.1 kΩ 7.5 kΩ S-102 S-701 S-501 S-301 S-101 0.1
■ Reliability data
Item Test conditions Criteria Resistance to 0.01-30 0 30 60 90 120 150 soldering heat 10 s at 260 ℃ (wave soldering) Δ Ip ± 5% Temperature 3 s at 245 ℃ Solderability Flux material: Rosin 25%, propanol More than 75% 90% soldered
Current - voltage characteristics with and CRD for higher currents
Dry heat 1000 hours at 150 ℃
without resistor (example)
CRDs can be used in row Damp heat (CRD S) 1000 hours at 85 ℃ and 85% humidity
Example: E-452
to amplify permissable Damp heat current. (CRD E) 1000 hours at 70 ℃ and 90% humidity Temperature 10 cycles as below: cycle / 1. - 55 ℃ for 15 minutes Δ Ip ± 5% 2. Room temperature for 15 minutes With thermal shock resistor (CRD S) 3. 150 ℃ for 15 minutes 4. Room temperature for 15 minutes Without resistor Temperature 5 cycles as below: cycle / 1. - 25 ℃ for 30 minutes 2. Room temperature for 15 minutes
CRD for higher voltages
thermal shock (CRD E) 3. 150 ℃ for 30 minutes 4. Room temperature for 15 minutes Using CRDs in row with Zener diodes allows the
Recommended mounting pad
use of stable currents at
dimensions (S series only)
higher voltage values.
Dynamic characteristics (voltage - current)
23
For currents of 1 mA or more resistors can be used together with 100 CRDs to compensate for current decreases and fluctuations. The following values are typical for compensation resistors. Rated power: 500 mW S-223 10 S-183 Product number S-102 S-152 S-202 S-272 S-352 S-452 S-562 S-822 S-103 S-123 S-153 S-183 S-223 S-153 S-123 Recommended S-103 S-822 resistance value 1.1 MΩ 430 kΩ 300 kΩ 200 kΩ 130 kΩ 91 kΩ 62 kΩ 27 kΩ 18 kΩ 15 kΩ 12 kΩ 9 kΩ 5.6 kΩ S-562 S-452 Rated power: 300 mW S-352 S-272 Product number E-102 E-152 E-202 E-272 E-352 E-452 E-562 E-822 E-103 E-123 E-153 E-183 1 S-202 Recommended S-152 resistance value 1 MΩ 390 kΩ 240 kΩ 120 kΩ 82 kΩ 56 kΩ 39 kΩ 20 kΩ 15 kΩ 11 kΩ 9.1 kΩ 7.5 kΩ S-102 S-701 S-501 S-301 S-101 0.1
■ Reliability data
Item Test conditions Criteria Resistance to 0.01-30 0 30 60 90 120 150 soldering heat 10 s at 260 ℃ (wave soldering) Δ Ip ± 5% Temperature 3 s at 245 ℃ Solderability Flux material: Rosin 25%, propanol More than 75% 90% soldered
Current - voltage characteristics with and CRD for higher currents
Dry heat 1000 hours at 150 ℃
without resistor (example)
CRDs can be used in row Damp heat (CRD S) 1000 hours at 85 ℃ and 85% humidity
Example: E-452
to amplify permissable Damp heat current. (CRD E) 1000 hours at 70 ℃ and 90% humidity Temperature 10 cycles as below: cycle / 1. - 55 ℃ for 15 minutes Δ Ip ± 5% 2. Room temperature for 15 minutes With thermal shock resistor (CRD S) 3. 150 ℃ for 15 minutes 4. Room temperature for 15 minutes Without resistor Temperature 5 cycles as below: cycle / 1. - 25 ℃ for 30 minutes 2. Room temperature for 15 minutes
CRD for higher voltages
thermal shock (CRD E) 3. 150 ℃ for 30 minutes 4. Room temperature for 15 minutes Using CRDs in row with Zener diodes allows the
Recommended mounting pad
use of stable currents at
dimensions (S series only)
higher voltage values.
Dynamic characteristics (voltage - current)
23