# 284391-4 (Component) ## Description 4 Position Wire to Board Terminal Block Horizontal with Board 0.138" (3.50mm) Through Hole The TE Connectivity 284391-4 is a through-hole mounted PCB terminal block designed for wire-to-board power and signal connections in industrial and electronic control applications. The component belongs to the Buchanan series and features a side-entry wire interface with a horizontal mating orientation. The terminal block supports secure screw-clamp wire termination and is intended for reliable field wiring in low-voltage systems. The connector provides four positions with a 3.5 mm pitch and supports wire sizes from 14 AWG to 30 AWG. The housing is manufactured from polyamide PA66 (Nylon 6/6) with a UL94 V-0 flammability rating. Conductive elements are constructed from brass with tin-plated contacts and nickel-plated clamp and screw components to ensure corrosion resistance and electrical reliability. The device is rated for up to 12 A current and 300 V operation and is suitable for PCB-mounted applications requiring compact, stackable terminal connections. The terminal block includes side interlocking capability for modular multi-position expansion. Engineering Specification Component Type: PCB Terminal Block Manufacturer: TE Connectivity AMP Connectors Series: Buchanan Manufacturer Part Number: 284391-4 Connector Configuration: Wire-to-Board Mounting Type: Through Hole Wire Entry Orientation: Horizontal / Side Entry Number of Positions: 4 Number of Levels: Single Level Pitch: 3.50 mm Wire Termination Method: Screw Rising Cage Clamp Supported Wire Gauge: 14 AWG to 30 AWG Screw Thread Size: M3 Recommended Screw Torque: 0.25 Nm (2.2 lb-in) Rated Current: 12 A Rated Voltage: 300 V AC Housing Material: Polyamide PA66 (Nylon 6/6) Housing Color: Green Flammability Rating: UL94 V-0 Contact Material: Brass Contact Plating: Tin Clamp Material: Brass with Nickel Plating Screw Material: Brass with Nickel Plating Feature Set: Side Interlocking Capability Compliance: RoHS Compliant Mounting Orientation: PCB Straight Mount The component shall be used in applications requiring secure PCB-mounted terminal connections with moderate current handling capability and compact spacing. Typical applications include industrial control systems, embedded electronics, instrumentation, automation interfaces, and low-voltage power distribution assemblies. #commonpartslibrary #connector #header ## Component Details - **Owner:** adrian95 - **Created:** 5/14/2026 - **Last Updated:** 5/14/2026 - **Visibility:** Public - **Manufacturer Name:** TE Connectivity - **Manufacturer Part Number:** 284391-4 - **Compliance:** Green - **Datasheet URL:** https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=1-1773458-1_EURO_STYLE_QRG&DocType=Data%20Sheet&DocLang=English&PartCntxt=284391-4&DocFormat=pdf - **Part Type:** Connector - **Mount:** Base - **Used in:** 43 projects ## Distributor Pricing (qty 1) *Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.* | Distributor | Unit Price (qty 1) | Stock | |------------|--------------------|-------| | [Arrow](https://www.arrow.com/en/products/284391-4_1/te-connectivity.html?utm_currency=USD&region=nac) | $1.1448 | 0 | | [LCSC](https://www.lcsc.com/product-detail/C5493298.html) | $2.4478 | 1 | | [Mouser](https://www.mouser.com/ProductDetail/TE-Connectivity/284391-4?qs=79dOc3%2F91%2FdCjNvntMutBA%3D%3D) | $2.19 | 0 | | [Verical](https://www.verical.com/pd/te-connectivity-terminal-blocks-284391-4-47327?utm_currency=USD) | N/A | N/A | - **Part Type:** Connectors - **Sub-Type:** Headers and Wire Housings - **Manufacturer:** TE Connectivity - **MPN:** 284391-4 - **Mount Type:** Base - **Package / Case Code:** TO - **Pin Count:** 4 - **Compliance:** Rohs, Green ## Pins | Pin | Name | Type | |-----|------|------| | 1 | 1 | | | 2 | 2 | | | 3 | 3 | | | 4 | 4 | | --- *Generated from [https://www.flux.ai/adrian95/284391-4](https://www.flux.ai/adrian95/284391-4)*