Side-by-Side Comparison
Power Connectors & PCB Packages
PCIe 12VHPWR & 12V-2x6 Connectors vs. Surface Mount (SMD) Passive Packages
Comparing 2 standards across 13 specifications. 13 key differences identified.
Comparing:
PCIe 12VHPWR & 12V-2x6 Connectors
Surface Mount (SMD) Passive Packages
The 12VHPWR (12+4 Pin / PCIe Gen 5) and revised 12V-2x6 (PCIe CEM 5.1 / ATX 3.1) high-power connectors deliver up to 600 Watts of continuous 12V DC power to graphics cards through 12 primary power conductors and 4 micro sideband sense pins (SENSE0, SENSE1).
Surface Mount Device (SMD) passive chip components (resistors, capacitors, inductors) are standardized under EIA (Imperial code in hundredths of an inch) and JEDEC/IEC (Metric code in tenths of a millimeter), spanning from microscopic 01005 (0.4 × 0.2 mm) to high-power 2512 (6.3 × 3.2 mm) footprints.
Specification Comparison Table
13 Parameters| Parameter / Spec | ||
|---|---|---|
|
Governing Standards
|
PCI-SIG PCIe CEM 5.1 / ATX 3.1 (12V-2x6) / ATX 3.0 (12VHPWR) | EIA (Electronic Industries Alliance) / IPC-7351 / IEC 60115 (Fixed Resistors) |
|
Conductor Layout
|
16 Pins total: 12 High-Current Power/Ground Pins (3.0 mm pitch) + 4 Micro Sideband Sense Pins (2.0 mm pitch) | — |
|
Current Rating per Pin
|
9.2 Amps per contact (continuous) across 6 positive + 6 ground pins | — |
|
Maximum Power Tiers
|
Configured via SENSE0/SENSE1 ground bonding: 150W, 300W, 450W, or 600W maximum | — |
|
12V-2x6 Revision (CEM 5.1)
|
Power pins lengthened by 0.25 mm; Sense pins recessed/shortened by 1.7 mm to prevent power delivery if incompletely seated | — |
|
Cable Wire Gauge Standard
|
16 AWG required for primary 12V/GND power wires (28 AWG for sideband sense) | — |
|
Mating Cycle Durability
|
Standard rating: 30 mating cycles | Minimum bend clearance: 35 mm (1.38") from connector body | — |
|
EIA 0201 (Metric 0603)
|
— | 0.60 × 0.30 × 0.23 mm (0.024 × 0.012") | Power: 1/20W (0.05W) | Smartphones, smartwatches |
|
EIA 0402 (Metric 1005)
|
— | 1.00 × 0.50 × 0.35 mm (0.040 × 0.020") | Power: 1/16W (0.063W) | Universal modern high-density PCB standard |
|
EIA 0603 (Metric 1608)
|
— | 1.60 × 0.80 × 0.45 mm (0.063 × 0.031") | Power: 1/10W (0.10W) | Smallest size comfortable for manual hand soldering |
|
EIA 0805 (Metric 2012)
|
— | 2.00 × 1.25 × 0.55 mm (0.079 × 0.049") | Power: 1/8W (0.125W) | Automotive electronics, educational prototyping |
|
EIA 1206 (Metric 3216)
|
— | 3.20 × 1.60 × 0.60 mm (0.126 × 0.063") | Power: 1/4W (0.25W) | High-current decoupling, precision audio |
|
EIA 2512 (Metric 6432)
|
— | 6.30 × 3.20 × 0.60 mm (0.250 × 0.126") | Power: 1.0W to 2.0W | Current sense shunt resistors |