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10.16mm 1016A and 1016B PCB Screw Terminal Blocks

This collection contains one 10.16mm pitch through-hole PCB screw terminal product with four selectable variants. Buyers can choose the 1016A or 1016B construction in 2-position or 3-position configurations. The listing package quantity is 20 pieces.

Available Variants

1016A, 2P
1016A, 3P
1016B, 2P
1016B, 3P

The source listing distinguishes the two constructions by PCB retention: the 1016A is described as using two solder pins per pole, while the 1016B is described as using four solder pins per pole. This difference changes the PCB drilling pattern, so the two versions should not be treated as footprint-compatible without checking a dimensional drawing.

What Does 10.16mm Pitch Mean?

Pitch is the center-to-center distance between adjacent electrical positions. A 10.16mm pitch equals 0.4 inch. It is different from 9.5mm, 7.62mm and other terminal-block pitches, and those parts cannot be substituted on the same PCB solely because their bodies look similar.

How to Select

Confirm that the PCB requires an exact 10.16mm center-to-center pitch.
Choose 2P or 3P for the required number of circuits.
Select 1016A or 1016B according to the required solder-pin pattern.
Check pin diameter, row spacing, PCB hole size, body dimensions and edge clearance against the drawing.
Confirm conductor size, strip length, screw torque and wire-entry access for the assembly.
Validate electrical ratings and compliance documents for the exact supplied component and end-use standard.
Account for the listing’s 20-piece package quantity.

1016A vs. 1016B

Both options share the stated 10.16mm pitch and are offered in 2P and 3P versions. Their reported difference is the number of solder pins used per pole. More PCB pins may change mechanical retention and current-path geometry, but it does not by itself prove a higher rating. Use the exact selected model’s drawing and test documentation.

Electrical Specifications and Safety Limits

The product listing states 650V, 57A and 22–8AWG for this 1016A/1016B range. These are source-listing claims for the specific product, not general ratings for every 10.16mm terminal block. Before design-in, confirm the applicable rating system, conductor material and temperature rating, allowable PCB current, terminal temperature rise, tightening torque and traceable certification documents.

Pitch alone does not establish suitability for mains wiring, three-phase distribution, battery packs, welding equipment, motor drives, pollution degree 3 or any specific high-voltage installation. Safe use depends on component certification, creepage and clearance, PCB copper and drilling, enclosure, wiring, ambient conditions and the complete equipment standard.

Compatibility Boundaries

The identifiers 1016A and 1016B describe the options in this listing. They do not prove interchangeability with similarly named products from another supplier. Compare pitch, solder-pin count and layout, pin dimensions, body width, wire-entry direction, screw access and barrier geometry before replacement.

Typical Design Context

When verified for the intended circuit, 10.16mm screw terminal blocks can provide a removable-wire-to-PCB interface for power supplies, industrial controls, converters and other equipment that needs a wide terminal pitch and large conductor access. These examples are design contexts, not blanket approval for a particular voltage or current.

Frequently Asked Questions

Is 10.16mm exactly 0.4 inch?
Yes. 10.16mm converts exactly to 0.4 inch.

What is the difference between 1016A and 1016B?
The listing describes 1016A as having two solder pins per pole and 1016B as having four. Verify the PCB pattern before ordering.

Can I replace a 9.5mm block with this 10.16mm product?
No. The position spacing differs and the PCB holes will not align.

Are 2P and 3P versions spliceable?
The available variants are complete 2P and 3P configurations. The source data reviewed does not establish that buyers can join individual modules into arbitrary position counts.

Is every 10.16mm terminal block rated 650V/57A?
No. Those values come from this product listing and cannot be generalized to other parts with the same pitch.

Does the collection prove CE or RoHS compliance?
The source listing uses those certification terms, but buyers needing compliance evidence should request documentation traceable to the exact supplied part.

Ordering Checklist

Confirm exact pitch, 1016A or 1016B construction, 2P or 3P count, solder-pin footprint, PCB drilling, conductor range, package quantity, electrical ratings and required compliance evidence.