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Twenty green plastic blocks with silver metal terminals, each 12mm wide by 15mm tall, 3.81mm pitch

Unique-Bargains

Unique-Bargains 20Pcs 300V 2-Pin 3.81mm Pitch PCB Screw Terminal Block Connector Straight Blade Plug

SKU CH-ZDHX-2A7FN

Pack of 20 two-pin PCB screw terminal blocks rated at 300 V with 3.81 mm pitch for quick wiring in electronic equipment

  • 20 pieces per pack for multiple PCB connections
  • 300 V AC rating supports mains-level signals
  • 81 mm pitch matches standard board layouts
  • Screw terminals allow tool-free wire changes
  • 8 mm × 12 mm × 15 mm body fits tight enclosures

20-Piece 300V 3.81mm Pitch Terminal Blocks

This pack contains 20 straight-blade PCB screw terminal blocks rated at 300V. Each block provides two positions with a 3.81mm pitch for wire-to-board connections. They suit hobbyists, repair technicians and small-scale assemblers who need a modest quantity of green pluggable connectors for prototyping or maintenance work.

Installation Ease and Common Issues

The screw terminals accept stripped wire and tighten with a small screwdriver, so no special tools are required. Because the pitch is only 3.81mm, adjacent terminals are close together; take care to avoid stray strands bridging neighbouring positions. Over-tightening can crack the plastic housing, and the pluggable design means the block can be unplugged from the header if the board vibrates.

Compatibility Checks Before Ordering

Verify that your PCB footprint matches the 3.81mm pitch and that the 8mm by 12mm body fits the available board space. Confirm the 300V rating meets the circuit requirements and that the wire gauge you plan to use fits the terminal openings. The pack supplies 20 pieces; order additional packs if the project needs more than twenty two-position blocks.

How it compares

Measured against everything we stock in AC Plugs & USB Wall Chargers, at today’s prices. Recalculated every night.

Price $4.99
Cheaper than about 90% of the 547 comparable items (median $17.99).

Specifications

Product
Brand nameUnique Bargains

Questions about this item

How can I verify the 300V 2-pin blocks are making solid contact after soldering them to a 3.81mm pitch PCB?

Apply rated voltage and measure continuity across each of the 20 positions; a steady reading with no voltage drop confirms the screw terminals are clamping correctly.

The pack lists 20 pieces of the green 8mm x 12mm x 15mm blocks — are mounting screws or a DIN-rail adapter included?

Only the 20 terminal blocks are supplied; mounting hardware and any DIN-rail adapter must be sourced separately.

I need 2-position connectors for a 3.81mm grid — is this 20-piece set the right choice or should I look for a different pitch?

These are 2-position blocks at exactly 3.81mm pitch, so the 20-piece pack matches a 3.81mm grid requirement.

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