Repair Parts for ET312B

While you may never have a problem with your ErosTek ET312B, after a many years of use, some things may wear out. Like the output level pots. Or the battery. If it’s within warranty, let us know. Here’s a list of the most common repair parts and their sources:

Rechargeable Battery Module
Part: RP300 available from ErosTek
– Includes mounting bracket and instructions.

Output Potentiometers (Level A and B)
Part: RP302 available from ErosTek
– Replace if output levels become erratic or unreliable.

Battery Charging IC (U13#)
Part: LM2941CT available from DigiKey
– Replace whenever battery fails to charge.
– Connecting the wrong AC adapter is a normal cause of failure of this IC.
– Observe ESD precautions for handling static-sensitive components.

Output Transistors (Q3, Q4)
Part: IRF9Z24N available from DigiKey
– Replace both to resolve “Failure 20” errors.
– Observe ESD precautions for handling static-sensitive components.

Tact Switches (Up / Down / Menu / OK switches)
Part: TL1100CF160Q available from DigiKey
– These switches are rated for 100,000 presses but not if liquids get inside 🙂
– Replace as needed

For the more parts, visit our Spare Parts section.

Customs duties for international shipments

Some more questions and answers regarding International Shipping…

Q: I’d like to avoid paying customs duties by having you state that my order is a “gift” or reducing the value. Is this OK? Thanks.

A: It’s illegal to state that an order from us is a gift or to list anything less than the actual value of the items on customs forms. Where this might have gone unnoticed in the past, the prevalence of the internet and search engines like Google make it very easy for customs officers to check a listed value against its market value. While I too dislike paying extra for things I want, this is the nature of doing business between countries and we have decided long ago to do it right and list the values accurately. This avoids delays and potential embarrassment by officials who scan incoming packages through customs. It also allows us to insure the packages to their full value in case of damage or loss during transit.

Q: Can you ship to Russia?

A: No. We are not able to reliably get our products through customs in Russia.

Q: How much will it cost to receive my package through customs. How long it will take for me to get it?

A: This depends on the country you live in. Most countries add sales taxes to incoming shipments. There may be additional fees. Estimate 20% added to the product total (less shipping costs).

Q: I live in Australia. Do you have an adapter that will work here?

A: The included AC adapter is a newer auto-sensing type and will work in any country and comes with 3 plug inserts for outlets having a UL (US/Canada), EU or UK mains connector. You will need a slip on plug convertor to change one of those pin types to the ones used in Australia or other countries. There is no need for another transformer to convert the voltage or frequency (Hz). Our AC adapter does this automatically.

International Shipments…yes!

We have been receiving a few emails lately asking if we ship to countries outside the USA.

Yes – we ship most anywhere in the world via United Postal Service and United Parcel Service (UPS) – including:

  • United States and territories
  • APO/FPO addresses via US Postal Service
  • EU member countries
  • Canada
  • Mexico
  • Asia

Shipping rates are calculated during checkout based on the weight of your purchase and type of delivery service you choose. UPS Ground is very inexpensive and allows next day delivery if you’re in our local area – within 150 miles to zip code 94903 – including San Francisco, Sacramento, San Jose, Oakland, and Santa Cruz. We’ve also enabled Next-Day Air, 2-Day and 3-Day service so you can decide the shipping speed you want. US Postal Service options include First Class, Priority Mail and Express Mail. And we ship all orders received by Noon the same business day. So you’ll get your order quickly, and discreetly in plain packages with no mention of the ErosTek brand.

SexTek becomes ErosTek



I just went to and ended up at the ErosTek Online Store. What happened?

— We’ve made some changes to make shopping easier.

Web traffic directed to is now automatically redirected to our new ErosTek Shop.

In 1997, we registered the domain name and began developing innovative electrostim accessories to sell to dealers and from the website. Our first products included the first-generation of the ElectroCup, the unique FlexProbe and a new adjustable cockring – the ElectroBand or “E-Band.”

When we partnerned with and later acquired ErosTek, we saw the need to develop and deploy a more modern e-commerce site that would allow us to add products, show videos and enable new features to make buying faster and easier. This new site runs on its own secure (SSL protected) domain, with room to grow.

The final step is now complete – Welcome to the new ErosTek Shop!

E-Cup with Neoprene Jock

100% surfsuit neoprene jock with our ultra-reliable E-Cup hard cup is an ideal “common” electrode. Pair it with our CockCap for incredible hands-free orgasms. I’ve been using a prototype of this setup for over a year now, and it’s easy to strap on and get your stim going. Easy to clean up too.

EM2191 Intruder BiPolar Anal Electro Plug

3 Extreme BiPolars

The IntruderInvader, and Intimidator round out our line of highly-polished solid aluminum bipolar buttplugs. These three are the largest we currently offer, with diameters ranging from 2.00″ (50mm) to a whopping 2.75″ (70mm). In stock and shipping with our custom low-profile Banana to Pin adapters making them easy to plug in and sit or lie down in comfort. No more worries about bent adapters. They even swivel!


Order confirmation emails now working

Our new ErosTek Shop has been performing well since going live on 30-April-2011. Today I fine-tuned our email server so that your online order will send you email updates as it moves through our warehouse and a tracking number once it ships. If you registered during checkout, you can also log in and check your order status for any order you’ve placed in real-time. Cool!

ErosTek Online Store now open!

Just in time for the weekend… the new ErosTek online store is now open!

Our new site has all of the products you’ve come to know at our original e-commerce site – – with a new look, improved organization, search capability and real-time shipping rates for UPS and US Postal. I’m excited to offer this new way of browsing our products and will be adding new products and information to this site in the coming weeks. Have a look and let me know your thoughts.