Possible substitutes for ACT_LED and SM04B-SRSS-TB(LF)(SN)

[ApolloniaUK]

I’ve been setting up an order and two parts are unavailable. The first is the activity LED but following @konarik’s advice I’ve substituted 19-217/BHC-ZL1M2RY/6T which has good availability.

The other missing item is SM04B-SRSS-TB(LF)(SN). Would this HCZZ0032-4 be a suitable replacement?

in the time I’ve been writing this question the SN74LVTH245APWR has gone out of stock. From previous discussion in this thread I gather there isn’t any real substitute, so I have ordered some and will have to wait for them to come in. I’ve also bought the in-stock components so when the SN74LVTH245APWRs arrive I can go straight ahead with the order.

Thanks for any advice.

[ApolloniaUK]

!….and the SN74LVTH245APWR is available again. Order placed with the above substitutes - worse case I have to get the hot air station out to remove the HCZZ0032-4 if it isn’t right. Fingers crossed….

[erichelgeson]

Sorry very busy during the week but what I'd do is just pull up the docs of both and look at the footprints - if they match they should be gtg. It's for the i2c connection which we'll have some use for shortly. Not the end of the world either if you add them later.

[ApolloniaUK]

Thanks for the reply - and no need to apologize! That’s pretty much what I did, and the order has now passed review so looks like the footprints match.

It's for the i2c connection which we'll have some use for shortly

Intriguing!

[kmmm70]

I've similar problem, U4, U5, U6, and U9 LVT245 (SN74LVTH245APWR) are 2 shortfall for my Bluescsi Desktop version at JLCPCB.
Please help to select the substitutions.
Thanks in advance.

[ApolloniaUK]

I am not an expert but going by what I have understood from other discussions here there is no good substitute, you just have to wait for it to come into stock again. My experience was it went out of stock and reappeared pretty quickly.