SMT Copper Busbar Ampacity & RFQ Calculator

Configure length, width, thickness, and material finish for instant Joule heat ampacity simulation, DC resistance, and tiered volume cost estimation.

ENGINEERING TOOL

Physics-based Joule heat balance & cost regression model for instant ampacity, temperature rise and volume pricing.

Quick Presets:

1. Dimensions (mm)Vol: 60 mm³ · Area: 6 mm²

Length L10 mm

Width W4 mm

Thickness H1.5 mm

2. Material & Plating

T2 Pure Copper (101% IACS)H65 Brass

Surface PlatingMounting Orientation

3. Thermal Rise & Volume

Allowable Temp Rise ΔT+45 °C

Ta=40°C → Tmax=85°C

Purchase Quantity10,000 pcs

Recommended Ampacity

32.1A

Continuous Max43.3 A

Current Density5.35 A/mm²

DC Resistance (20°C)

0.036mΩ

Ultra-low resistance

Voltage Drop & Loss

1.16mV

0.037 W @ 32.1A

Equivalent PCB Copper

86x 2oz Cu

Replaces 85.7mm trace width (2oz Cu)

Carrier Tape Width

24mm T&R

EIA-481 standard reel

Estimated Unit PriceBased on 10,000 pcs progressive stamping + reel packaging

$0.0439/pcs