A fuse, NMFZ007-2R5X-K , 2.5A 24V
Is that a 0603, still learning the size aspect of smd
Hard to tell from a picture, but I think it's 0805 and the 4 parts to the left of the fuses being 0603 and the 0 ohm resistor marked '000' being 1206.
But if you're in doubt, just measure the length and width with a ruler or even better a calliper.
Here's all the standard SMD resistor dimensions in mm:
The dimensions are also shown on Dave's µRuler:
http://www.eevblog.com/projects/uruler/But you don't have to work with SMD's for long before you learn to easily tell the difference between the most common sizes like 1206, 0805 and 0603 just by looking at them.
Do any of you chaps recognize the logo on the pot in this picture? I'd like to buy 5 of them to overhaul my microkorg synthesizer, but the only supplier I've found sells them for $6 each. I'm hoping I find another source for them.
Thanks.
I bought a used fluke 189 multimeter from a seller
https://www.eevblog.com/forum/Smileys/default/smiliey_dmm.gif . He gave me a set of probes which don't fit in any of the jacks of fluke 189 . I was wondering does anybody know what kind of probes are these and can it be used with this meter. All the probes are marked fluke on them.
sorry for the picture quality.
I have two burned out SMD components I need to replace. One is a diode, the other (I think) is a transistor. It's hard to make out the markings, but the board has others with similar markings, so I am going to assume these are the same. I'm not familiar with how to decode the markings and then do a mouser or digikey search for these.
The diode looks like it says A4 with a sideways E or 3. The transistor says 7CW with a sideways 83. Can someone point me in the right direction ?
Thanks
Anthony
Any info on this sensor? I believe it is an analog air sub-pressure sensor from an car engine air intake.
Alexander.
This thing is out of an old 70's military radio device. The marking is "LCC 4K7". Its simply a short in both directions, no semiconductor, no capacitance...
It was built in a shielding can, like the drawing
Could it be, that it is only for a proper penetration of shielding cans to carry out/in a signal?
Perhaps a feedthrough cap.
i thin its a pass through cap or bulkhead connector.
Definitely a feedthough capacitor, or maybe just an environmentally-resistant but still removable and serviceable feedthrough into a closed box.
Sometimes my brain starts to clatter - and, ah, a few of the modules i have kept. There marked as C's with "4700" on it. But the two i have seperate, are definitely shorted. No capacitance in every respect. I will try to measure the things in the module.
The capacitance is between the centre lead & the outer threaded case.
It is a convenient way to bypass a lead which has to pass through a metal panel.
D'oh! Silly me. Excuse my stupidity. I think I got it
Thanks,
any idea where I get something like that? I also wondered, how are you so sure. In what kind of application have you seen something like that before?
Thanks
These devices are used in position sensing applications, such as for laser guided weaponry or encoded machine systems (like scanning galvanometers for lasers). The position of the incident light source is calculated by determining the input current differential between the 4 segments - if the current output is equal from all 4 segments, you are in the direct centre (so for a laser guided missile it is hitting the target). I can help you with sourcing these devices. Email me for details.
These devices are used in position sensing applications, such as for laser guided weaponry or encoded machine systems (like scanning galvanometers for lasers). The position of the incident light source is calculated by determining the input current differential between the 4 segments - if the current output is equal from all 4 segments, you are in the direct centre (so for a laser guided missile it is hitting the target). I can help you with sourcing these devices. Email me for details.
So that is a quadrant photodiode like this one from Digikey:
http://www.digikey.ca/product-detail/en/SXUVPS4C/958-1018-ND/4047472.
I was looking for cheaper version of one like this without any luck.
A cheap one is available in every CD player optical block.
It's me again
Please name that connector type. Its on a Wandel & Goltermann PDH/SDH Transmission-/Jitteranalyzer.
Thanks!