| ??? 09/13/08 06:45 Read: times |
#158236 - Select-On-Test Responding to: ???'s previous message |
Kesav Mahesh Kumar said:
the type and brand varies with each shop and hardly the sellers knows about them. If this is for a commercial product, then it sounds like you are talking to the wrong sources. You really need to find distributors who can supply to a definite specification. It sounds like you are talking to hobbyist suppliers - which is fine if this is a "hobby" or one-off project. In that case, you can simply buy a bundle of LEDs, and Select-On-Test; ie, you measure each LED's characteristics, and select a suitable series resistor based the observed performance... That could even work for small batch production - especially if your labour costs are low... |
| Topic | Author | Date |
| voltage rating for Chip LEDs | 01/01/70 00:00 | |
| same, of course | 01/01/70 00:00 | |
| datasheets really are your friends | 01/01/70 00:00 | |
| Voltage | 01/01/70 00:00 | |
| Not so fast... | 01/01/70 00:00 | |
| forward voltage... and series resistance (sometimes)... | 01/01/70 00:00 | |
| nothing exotic | 01/01/70 00:00 | |
| Some numbers... | 01/01/70 00:00 | |
| the question, the answers | 01/01/70 00:00 | |
| Many don't know about datasheets at all | 01/01/70 00:00 | |
| Unfortunately, in real life ... | 01/01/70 00:00 | |
| thank you every one for your advice | 01/01/70 00:00 | |
| series 0805 | 01/01/70 00:00 | |
| 0805 = package size | 01/01/70 00:00 | |
| Select-On-Test | 01/01/70 00:00 | |
| yeah its better to buy a few and test them | 01/01/70 00:00 | |
| Test for what? | 01/01/70 00:00 | |
| RE: Test for what? | 01/01/70 00:00 | |
| Usually... | 01/01/70 00:00 | |
| all i can find are hobbyist suppliers. | 01/01/70 00:00 | |
| Try "real" parts sources ... | 01/01/70 00:00 | |
| No, no, digikey isn't that nice... | 01/01/70 00:00 | |
Digikey | 01/01/70 00:00 |