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Questions tagged [replacement]

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How to replace microjack on stereo earplugs with microphone [closed]

I broke a microjack connector. It is attached to a set of stereo earplugs with built in microphone. I know how to solder, but I am not sure how to find the correct replacement plug and how to identify ...
Jostein Trondal's user avatar
0 votes
0 answers
17 views

Thermal fuse replacement

I need to replace a failed thermal fuse, but I cannot match a replacement exactly. I need a ShengPing SPF70-73C, TH=45C, TM=115C/10a @ 250v. How close do I have to match these specs, over and/or ...
Gregory Bitterman's user avatar
0 votes
1 answer
97 views

Can someone tell me what this IC is?

I was Hoping someone smarter than me could help. I am looking for a replacement IC that blew up on a board. I was able to get a picture of the chip from another board to get the markings. The chip ...
Fishbone's user avatar
0 votes
0 answers
39 views

Plugable Varistor and Fuse Cartridge for easy and safe replacement

As I have concluded with some tests, by reading some posts and even asking a question on this forum, Varistors can get damaged with multiple or even just one cycle of use. They fail as a short, being ...
Dinis's user avatar
  • 55
0 votes
1 answer
131 views

TCA785 obsolete, replacement?

I am looking to redesign an old circuit diagram's phase control IC. I can't find any ICs that can act as a replacement for this item: TCA785. What should I look for in an IC for phase control? It is ...
Wes Ellgass's user avatar
9 votes
4 answers
3k views

Why do manufacturers label differently seemingly identical components?

I am not sure if this is the relevant place to ask this (I think it is.) I am still relatively new to the electronic design world, but I notice that a series of parts (example - Torex XCLxxx) can ...
Yordan Aleksandrov's user avatar
1 vote
2 answers
115 views

Vintage Braun speaker crossover capacitors

I know that non-polarized capacitors are used in a speaker crossover. The attached Braun schematic (L-910, 1968) shows 2 different symbols for non-polarized caps. Any ideas what the difference is ? ...
Electro's user avatar
  • 11
1 vote
1 answer
37 views

Is G2RL-1A-E a suitable replacement for G2RL-1A-E-HA relay in dishwasher

I'm trying to figure out if the G2RL-1A-E power relay is a suitable replacement for a G2RL-1A-E-HA relay. When I study the datasheet, the only difference I see is that the market code distinguishes ...
DavWEB's user avatar
  • 113
1 vote
1 answer
72 views

How to change correct battery in any TWS Airbuds Case? [closed]

I have been using Truke Buds BTG3 (having 3.7 V 300 mAh battery in case) more than a year. Battery backup of the charging case got poor because of weak battery! So I am trying to replace it with a new ...
Arun Jothi's user avatar
0 votes
0 answers
98 views

Alternative IC for ATMEGA

I'm looking for an IC to replace the ATMEGA chip in the following circuit. During operation the MCU applies a voltage to the base of the BJT allowing current to flow through the load. However, when ...
sunra's user avatar
  • 121
2 votes
1 answer
239 views

Are there any Schottky-diodes that can replace the ones on this PCB?

I want help with finding Schottky-diodes to replace the ones on the PCB bordered in the red rectangle. They are probably non-working as they failed the continuity test with a multimeter. I have two ...
Max Frambuesa's user avatar
1 vote
1 answer
105 views

Can I use LQFP on same TQFP footprint?

I need to order a 32 pin LQFP chip and replace it with another 32 pin TQFP chip so is it ok to replace it or it won't be compatible? The chip is an STM8S003K3 MCU
Hazardous Voltage's user avatar
2 votes
1 answer
342 views

Replacing 8 AA batteries with 3 186500 batteries

My old R/C toy car, can be powered with 8 1.5V AA batteries or 8 1.2V Ni-Cad Batteries. Currently I try to use 3 186500 Li-Ion batteries instead. I planned to use a charger- and protection module ...
jonas's user avatar
  • 123
1 vote
1 answer
236 views

Help find alternative AC capacitor replacement for refrigerator compressor [closed]

My mini fridge is broken and doesn't blow cold air. I'm suspecting it's the capacitor because it tested bad and I don't hear the compressor humming when turned on (all fan runs). I wanna try replacing ...
TacoTanium's user avatar
0 votes
0 answers
35 views

WR91700 datasheet or pinout

After several attempts trying to find out the datasheet or pinout of WR917O0 IC, I only have found a service manual of PSR-S710-S910 Yamaha workstations. The IC is included in the list of components ...
Fran67's user avatar
  • 1
0 votes
2 answers
738 views

MOSFET transistor replacement for Proform T7 Treadmill

Treadmill motor turns for a second and immediately stops. After researching issue, looks to be a blown IRFP250M IOR P039J 20 8J. My question is, I'm having trouble finding a replacement that includes ...
Billy's user avatar
  • 3
0 votes
2 answers
183 views

How to choose a replacement battery

I want to replace a battery to an old electronic but the company went out of business and I cannot find the same one and the one I have doesn't last long at all. I would love to replace it with a ...
mrg's user avatar
  • 1
2 votes
1 answer
117 views

Disc capacitor ratings for replacement

I'm repairing some vintage electronics, and there are a handful of cracked ceramic disc capacitors that need replacement. They're mostly for decoupling, but I want to make sure I'm replacing with ...
BZo's user avatar
  • 2,121
0 votes
0 answers
109 views

Is an RFP50N06 a valid replacement for an IRF50N06 MOSFET?

I recently blew a MOSFET in my car audio amplifier because some water got on it. The MOSFET used in the amplifier is an IRF50N06. I was wondering if the RFP50N06 MOSFET would be a good replacement ...
developerjon's user avatar
0 votes
0 answers
87 views

Repairing a control board for an automatic gate opener, it has a faulty trimpot 100k 906k

FAAC control board 12 V has a faulty trimmer (single turn rotary carbon). I could not find the exact values in a replacement part. Can I use one with the values 705 100k? It is used to adjust the ...
Tom Williams's user avatar
2 votes
1 answer
133 views

Fixing runaway sewing machine - blown transistor?

Disclaimer: I know very little about electronics, but I'm willing to learn as I go. My experience consists of playing with Arduinos and fixing a lamp by soldering a replacement switch. Please be ...
Bad Request's user avatar
2 votes
1 answer
659 views

Replacing current shunt resistor with different value. Is there a problem?

I have Nitecore UM2 (2 slot) battery charger whose current sense/shunt resistor of 0.1 ohms R100 (package 1206) blown. I replaced with working slot to see if everything works good and it is. I am ...
Paul's user avatar
  • 60
8 votes
2 answers
739 views

Disconnect vertical tab connector from PCB

I'm trying to replace a PCB, but I can't figure out how to unplug these connectors. They seem to be a "quick connect" style. I've tried tugging on them and wiggling them, but they won't come ...
Brian McCutchon's user avatar
0 votes
2 answers
223 views

Looking for replacement transistor for Branson B52 ultrasonic cleaner

I’m trying to repair a Branson B52 ultrasonic cleaner which has two bad transistors since the wires broke off the transducers. I fixed that up, and noticed when running (barely and would fail the ...
stirringhalo's user avatar
0 votes
1 answer
72 views

I want to replace battery on my Acer Aspire ES1-111 and I'm having hard time choosing batteries online [closed]

-My original battery is AC14B13J---TYP3220mAh/36Wh---MIN3090mAh/34.5Wh---11.4V 3140mAh -The one I found online has the same description as my original battery, but it has an 11.55V 3180mAh. Is it okay ...
Ajova Memes collector's user avatar
1 vote
1 answer
144 views

Identify a replacement 12-pin ribbon cable push in socket

I need to identify a replacement for this 12 pin flat cable connector. I don't seem to be able to find the right google terms to come up with a useful result. A 12 pin AWM 2896 cable plugs into this. ...
Drise's user avatar
  • 133
6 votes
4 answers
2k views

Transistor: What is "epitaxial planar type"?

I need to replace a (panasonic) transistor and read the datasheet to possibly replace it with something else. However in the datasheet they call this transistor a "Silicon NPN Epitaxial Planar ...
Codebeat's user avatar
  • 1,346
-1 votes
2 answers
296 views

SOT23 package jumper [duplicate]

I’m replacing some components on existing PCB, and I need to replace transistor in SOT23 package with a jumper. Problem is that none of the standard jumper packages are not suitable for more than a ...
Nikola50's user avatar
17 votes
4 answers
7k views

Why do cordless tool batteries have a circuit board connected?

The other day I got tired of buying replacement 18 V battery packs for my power tools (drill, ripsaw, etc.) and I thought to myself, surely by this day and age the price of lithium-ion batteries can't ...
Alfred's user avatar
  • 189
0 votes
1 answer
496 views

Replacing lost SMD capacitor from another board

I was trying to fix a board and I lost an SMD capacitor. On the diagram it says "10UF/6.3V." I have another board for another laptop and I found these on the diagram, which one is the ...
Osama Gadour's user avatar
1 vote
1 answer
275 views

Replacement relay - slightly different specs

I have an old kitchen range hood whose lighting suddenly stopped working. With my limited knowledge and capabilities in this field, I was able to access the PCB just to see that the power relay is ...
J. Hrstka's user avatar
0 votes
0 answers
93 views

Dewalt radio power supply

Can someone tell me what chip U2 is in this picture?
darren atkinson's user avatar
0 votes
0 answers
119 views

2SB1241 Transistor replacement

I have a Peavey PV8 USB Mixing console which doesn't turn on anymore, the problem is a burned PNP switching the +15V rail. The Marking of the transistor is B1241 but due to the 3-SIP package im pretty ...
Thorbijoern's user avatar
1 vote
1 answer
165 views

If an IGBT's collector-emitter max voltage is 600 V, Do I need 1 kV rated capacitors on the output side?

I'm fixing this solar PV diverter (pictures attached at the bottom of this post), other than the traces it has a blown IGBT and 2 capacitors. The datasheet for the IGBT (model FGH40T65SPD) is here:  ...
CptChronic's user avatar
1 vote
1 answer
219 views

Can I replace an SRAM chip with a faster one?

I need to replace an SRAM chip with an access time of 25ns (AS7C256-25JC). How important is the access time? Can I replace it with one with a lower access time, such as the AS7C256A-20JC at 20ns, or ...
Daniel Hedberg's user avatar
0 votes
0 answers
28 views

Operate servo based on AC voltage: solenoid replacement

In short, I’m trying to find a substitute for a solenoid in a system that was operating based on 120V. The servo needs to rotate a little shaft about 45 degrees when the voltage comes on, and then ...
TheLabCat's user avatar
  • 101
1 vote
1 answer
732 views

Fried diode - need help buying replacement

Full disclosure, I'm not an electrician by any means. My dad was an electrician in the Navy, but we lost him last year. Since I don't have him to look to anymore, I'm hoping I can find some help here. ...
DC3's user avatar
  • 21
3 votes
1 answer
410 views

Have cross reference books ceased to exist?

Back in the "good old times" when I had a device fail I could grab my trusty old transistor cross reference book and find a replacement part with the same footprint and comparable parameters ...
kruemi's user avatar
  • 3,224
2 votes
1 answer
596 views

What does "FB" for a fuse mean?

I have a blown GE 250v 20a FB WB27X27316 that I need to replace. Unfortunately, GE doesn't have them in stock for another 3 months. I want to replace it with another off-the-shelf fuse, but I don't ...
Maximus Martinez's user avatar
0 votes
1 answer
85 views

Defective Transformer Replacement

I've been working on repairing a TV psu, and discovered that the transformer in it is faulty (reading O.L. on every combination of pins except for diagonal in ohms mode on the DMM) I've been looking ...
Koen Van Den Elsen's user avatar
0 votes
0 answers
51 views

Help with identifing replacement parts [duplicate]

I am still learning about electronics and was hoping for some help regarding two components I am trying to replace (due to a faulty connector and my stupid fault). With the help of @Lundin, they ...
Mike_D.'s user avatar
  • 19
1 vote
0 answers
87 views

Finding replacement battery

I would like to revive an older gadget (GT-100 GPS tracker) that is still functional but has a dead battery. However, I am unable to find detail about proper battery type. The original battery says ...
Jan Koupil's user avatar
1 vote
0 answers
228 views

eMMC chip change. Does not work for unknown reason

Because of the chip crisis, I had to use (the only ones which were available at the time) different eMMC chip. Originally it was MTFC16GAPALBH-IT, but I have temporarily replaced it with MTFC4GLWDM-4M ...
0___________'s user avatar
  • 2,594
0 votes
1 answer
370 views

Need help with a replacement thermistor

I recently bought a used IKEA ceiling light however when getting it home noticed that it seems the live wire is connected to a thermistor? which then has another short wire where you connect to mains ...
bendpsmith's user avatar
0 votes
0 answers
758 views

MOSFET identification for hoverboard repair - markings SW FK2J3 95N68A

I am trying to fix a Jetson Plasma hoverboard. I have a removed a few MOSFETs that I believe have failed. I have searched Digikey and Mouser and have been unable to identify a replacement part. Here ...
robotdan's user avatar
  • 101
0 votes
1 answer
114 views

What do you test when changing parts [closed]

Let's say some parts within one of your products are discontinued. You already have a replacement that seems to fit from specifications. What tests do you usually conduct to verify proper operation? ...
NoiseEngineer's user avatar
0 votes
2 answers
4k views

What do I have to look for when replacing a MOSFET with a different model? [duplicate]

We are currently repairing the memory rail of a GPU and because a MOSFET burnt out, we would like to replace it. The issue is, that we only have one that is a similar model, namely we would like to ...
WhatAMesh's user avatar
  • 113
1 vote
0 answers
150 views

Cree LED problem

We have a production circuit of 24 series/parallel LED arrays. Blocks of LEDs fail on power-up. Has anyone seen this before? The sequence of events is: An LED tests as bad in circuit. LED is removed ...
Alex's user avatar
  • 11
2 votes
2 answers
685 views

Replacement for low resistance JFET current limiter?

A classic way to protect opamps from excessive input current and still preserve a low source resistance (for noise reasons) is to use dual JFETs in combination with rail-clamps internal to the op-amp. ...
tobalt's user avatar
  • 22.3k
1 vote
2 answers
479 views

Neon bulb lamp replacement for surge suppression

I'm restoring an HP 141T and it has a broken neon lamp which is used I believe as surge protection in the following configuration: On the right is the CRT. I believe the only purpose for such lamps ...
cosenmarco's user avatar