# Wire connector EFB Elektronik 37512.1-100

**URL:** https://aio.lv/en/product--efb-elektronik-375121-100--1042990
**Data updated:** 2026-01-06 11:03 (EET)
**Category:** RJ Plugs & Boots
**Manufacturer:** EFB Elektronik
**Manufacturer code:** 37512.1-100
**EAN:** 4049759133863
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 8.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 7.43 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--efb-elektronik-375121-100--1042990

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

The EFB Elektronik 37512.1-100 is a transparent RJ-10 wire connector designed for U/UTP (UTP) cables. Each pack contains 100 pieces, ensuring you have plenty for your projects. The transparent design allows for easy identification of connections, making installation straightforward and efficient. Ideal for various applications, this connector provides reliable performance and durability.

## Long description

The EFB Elektronik 37512.1-100 is a transparent modular connector (RJ10, 4P4C) designed for use with flat U/UTP (UTP) cables. Supplied in packs of 100 pieces, the connector is intended for wiring telephone and low-speed data connections where an unshielded 4-conductor modular plug is required. The clear housing allows visual inspection of conductor placement to facilitate correct termination.
Advantages
Transparent housing for easy identification of conductor order and correct insertion. Compatible with standard flat telephone cables and suitable for common 4P4C applications. Supplied in a 100-piece pack to support multiple terminations and small production runs. Unshielded design keeps the connector simple and cost-effective for non-shielded installations.
Suitable for
Telephone handsets and short in-home telephone extensions
Low-speed data lines requiring 4P4C connections
Repairing or assembling flat U/UTP (UTP) telephone cables
Key specifications
Type: Modular connector RJ10 (4P4C), unshielded
Material: Transparent plastic housing
Cable type: Flat U/UTP (UTP) telephone cable
Quantity: 100 pieces per pack
Brand: EFB Elektronik
MPN: 37512.1-100
EAN: 4049759133863
How to use
Prepare the flat cable by stripping the outer sheath to expose the four conductors and align them in the required color sequence. Insert the conductors fully into the connector so each wire seats under its contact. Use a compatible crimping tool designed for RJ10/RJ11/RJ12/RJ45 connectors (EFB Elektronik Art.-No. E-MUC410) to crimp the connector securely. For other compatible crimp tools, check manufacturer recommendations.
Usage recommendations
For consistent terminations, use the recommended crimping tool (Art.-No. E-MUC410). Avoid using these unshielded connectors in environments with high electromagnetic interference; choose shielded alternatives if required. Store connectors in a dry place to prevent contamination of contacts.

## Specifications

### Packaging content

| Feature | Value |
|---|---|
| Quantity per pack | 100 pc(s) |

### Features

| Feature | Value |
|---|---|
| Connector(s) | RJ-10 |
| Product colour | Transparent |
| Cable shielding | U/UTP (UTP) |

## FAQ

### How much does the Wire connector EFB Elektronik 37512.1-100 cost, and is it available for purchase?

The price is 8.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1500 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 08.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All EFB Elektronik products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized EFB Elektronik service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: connector(s), product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/1042990/64129705_large.webp