OSRAM LED in the BOM is EOLed?

[harrison]

Hello Victor,

The original LZ7 LED is STILL used in the devices since the producer (Labmaker) bought a large stockpile of them when they saw it was going to be discontinued.
There are various alternate LEDs, such as the one you posted. However, at least in my opinion they are not as good as the original part we used. For example, in the case of the one you listed it has much wider PCLime and PCAmber filters which don’t give a nice “tight” excitation wavelength distribution, as is necessary to get good signal-to-noise for fluroescence measurements.

Depending oon your application you might be OK with this. In that case this WOULD be possible to swap into the device, though you need to check the pin-out on that LED is exactly same as the original LZ7 if it is to just be directly soldered onto the PCB.

[Karl Gerhardt]

LZ7-04M2PD appears to be the closest thing to a substitute (please share if there are others) but does not have a compatible pin-out (see below). It might be possible to control some of the LEDs and insulate the pins with incorrect polarity. Ideally though, the component would be substituted with a different LED.

Harrison- have you given any more thought to hosting the project files?

LZ7-04M100:
Pin Color Polarity
2 Red +
3 Green +
5 Blue +
6 Amber –
8 White +
9 Cyan –
11 Violet +
14 Violet –
15 Cyan +
17 White –
20 Amber +
21 Blue –
23 Green –
24 Red –

LZ7-04M2PD:
Pin Color Polarity
2 Red +
3 Blue +
5 Green +
6 Lime +
8 Lime +
9 Amber +
11 Cyan –
14 Cyan +
15 Amber –
17 Lime –
20 Lime –
21 Green –
23 Blue –
24 Red –

[Author]

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