DF22R-3P-7.92DSA(05) - 3-Pin 7.92mm 30A Power Header | Hirose
MPN: DF22R-3P-7.92DSA(05) ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.65 | $16.50 |
| 100 | $1.32 | $132.00 |
| 500 | $1.05 | $525.00 |
| 1,000 | $0.92 | $920.00 |
DF22R-3P-7.92DSA(05) Overview
A power-to-board header is a board-mounted male contact strip that mates with a wire-side crimp socket (DF22RC series) to bring power into or between PCBs. As a member of the high-current rectangular connector family, the DF22R sits in the hierarchy board-to-board connector -> rectangular power connector -> high-current header -> through-hole vertical header. It bridges upstream bulk DC rails (24 V bus, 48 V telecom, battery stacks) to downstream point-of-load converters and DC-DC bricks inside industrial, robotics, and telecom equipment.
Key features of the DF22R-3P-7.92DSA(05) include a 7.92 mm contact pitch (the widest in the DF22 family for high-current applications), UL/C-UL and TUV safety certifications, and a robust halogen-free resin housing rated for -55 C to +85 C operation. The vertical through-hole mount orientation simplifies PCB routing for stacked board-to-board power delivery where a right-angle exit is not viable.
Architecturally, the header uses thick copper-alloy pins with tin plating for low contact resistance and high current density. The 7.92 mm pitch provides the creepage and clearance required by IEC 60950 / IEC 62368 for primary-side power circuits, while the positive lock delivers audible mating feedback and prevents vibration-induced disconnection in industrial environments.
Typical applications include industrial automation controllers, programmable logic controller (PLC) power inputs, servo drive bus rails, telecom base-station 48 V distribution, and uninterruptible power supply (UPS) battery interconnects. The wide pitch also suits EV charging station auxiliary power, where isolation and mechanical robustness are essential.
When designing with this header, derate the 30 A rating to roughly 24 A continuous per pin at industrial ambient (typically 70 C) and provide adequate copper pad area for thermal relief. Always use the matched DF22RC-3S-7.92C receptacle and the recommended crimp contacts to maintain the rated current and the UL/TUV approvals.
This page synthesises distributor pricing, same-brand and cross-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for DF22R-3P-7.92DSA(05) — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DF22R-3P-7.92DSA
✅ Drop-In📋 Reference alternative (not in catalog)
DF22-3P-7.92DSA
✅ Drop-In📋 Reference alternative (not in catalog)
DF22-3P-7.92DSA
✅ Drop-In📋 Reference alternative (not in catalog)
DF22R-3P-7.92DS
✅ Drop-In📋 Reference alternative (not in catalog)
DF22R-2P-7.92DSA
✅ Drop-In📋 Reference alternative (not in catalog)
DF22R-3P-7.92DSA(05) Specifications
| Product Type | Power-to-Board Header, Through-Hole, Vertical |
| Series | DF22R |
| Number of Positions | 3 |
| Contact Pitch | 7.92 mm (0.312 in) |
| Number of Rows | 1 |
| Current Rating (per contact) | 30 A (max), derated ~24 A continuous |
| Voltage Rating | 600 V AC/DC |
| Mounting Orientation | Vertical, Through-Hole |
| Mating Socket Series | DF22RC-3S-7.92C receptacle |
| Locking Mechanism | Positive lock (audible click) |
| Keying | Mechanical keying to prevent mis-mating |
| Contact Plating | Tin (standard) |
| Housing Material | Halogen-free resin (UL94 V-0) |
| Operating Temperature | -55 C to +85 C |
| Safety Certifications | UL, C-UL, TUV listed |
| RoHS Status | Compliant (per CL No. CL0680-1038-6-05) |
| Packaging | Bag (Tray option per Hirose spec) |
DF22R-3P-7.92DSA(05) Pin Configuration
| Pin 1 | Pin 1 — Contact 1 (keying triangle mark on housing); mates to DF22RC-3S-7.92C receptacle position 1 |
| Pin 2 | Pin 2 — Contact 2 (centre pin); mates to receptacle position 2 |
| Pin 3 | Pin 3 — Contact 3; mates to receptacle position 3 |
Typical Applications
DF22R-3P-7.92DSA(05) is suitable for 6 applications: Industrial PLC Power Input, Servo Drive Bus Rail Distribution, Telecom 48 V Base Station Distribution, UPS Battery Interconnect, EV Charging Station Auxiliary Power, Robotics Power Distribution PCB.
Industrial PLC Power Input
The DF22R-3P-7.92DSA(05) is well suited for PLC power input headers where 24 V DC rails (and sometimes 48 V or higher bus voltages) must be brought onto the control board. Its 30 A per-contact rating covers the full inrush of capacitor-input supplies downstream, while the 7.92 mm pitch gives the creepage required by IEC 61131-2 for industrial control isolation. The positive lock prevents vibration-induced disconnection on factory floors, and the mechanical keying prevents mis-mating when the same 3-pin connector is used for both power and I/O.
Recommended
Servo Drive Bus Rail Distribution
For servo drives and motion controllers, the DF22R-3P-7.92DSA(05) acts as the main DC bus entry header carrying rectified mains to the bulk capacitor bank and IGBT inverter stage. The 30 A continuous rating comfortably handles peak regeneration currents when the drive is braking, and the 7.92 mm pitch meets the IEC 61800 creepage requirements for adjustable-speed drives. Vertical through-hole mounting simplifies thermal layout on the heatsink-adjacent side of the drive PCB.
Recommended
Telecom 48 V Base Station Distribution
The DF22R-3P-7.92DSA(05) is widely deployed in telecom equipment for -48 V battery bus distribution, where reliability and UL/TUV certification are mandatory. Its 30 A per-contact rating supports multi-tray current sharing at the rectifier shelf, and the 600 V rating handles transient spikes from the battery disconnect. The halogen-free, UL94 V-0 housing is required by major telecom OEMs (NEM, ETSI) for indoor cabinet equipment.
Recommended
UPS Battery Interconnect
Uninterruptible power supplies use the DF22R-3P-7.92DSA(05) as the battery-to-chassis header in mid-power UPS modules, where 36 V or 48 V battery stacks deliver hundreds of watts continuously. The positive lock survives repeated service cycles, and the mechanical keying prevents reverse polarity connection that would otherwise damage the battery management electronics. UL and TUV listings simplify the certification of the finished UPS for sale in North America and Europe.
Recommended
EV Charging Station Auxiliary Power
Inside AC and DC EV charging stations, the DF22R-3P-7.92DSA(05) handles the auxiliary 12 V/24 V control-board power supply and the interlock signalling lines. The wide 7.92 mm pitch provides the isolation required by IEC 61851 between the high-voltage DC bus and the low-voltage control electronics. The 30 A capability lets one header serve both the auxiliary supply and the contactor coil driver on a single 3-pin connector.
Recommended
Robotics Power Distribution PCB
In industrial robot controllers and cobot base stations, the DF22R-3P-7.92DSA(05) serves as the main power entry for joint driver cards carrying 24 V or 48 V DC. The positive lock withstands the constant motion and vibration of robotic arms, and the 30 A rating supports peak motor currents during acceleration. Vertical through-hole mounting simplifies attachment to the chassis-mounted heatsink of the driver card.
Recommended
Recommended Products Summary
Engineering reference data for DF22R-3P-7.92DSA(05) — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DF22R-3P-7.92DSA(53) | DF22-3P-7.92DSA(05) | DF22-3P-7.92DSA(53) | DF22R-3P-7.92DS(06) | DF22R-2P-7.92DSA(05) |
|---|---|---|---|---|---|---|
| Brand | Hirose Electric | Hirose Electric | Hirose Electric | Hirose Electric | Hirose Electric | Hirose Electric |
| Package | Through-Hole, Vertical Header, 7.92mm pitch | Through-Hole, Vertical Header, 7.92mm pitch - same | Through-Hole, Vertical Header, 7.92mm pitch - same | Through-Hole, Vertical Header, 7.92mm pitch - same | Through-Hole, Vertical Header, 7.92mm pitch - same | Through-Hole, Vertical Header, 7.92mm pitch - same |
| Number of Positions | 3 | 3 | 3 | 3 | 3 | 2 |
| Contact Pitch | 7.92 mm | 7.92 mm | 7.92 mm | 7.92 mm | 7.92 mm | 7.92 mm |
| Current Rating (per contact) | 30 A | 30 A | 30 A | 30 A | 30 A | 30 A |
| Voltage Rating | 600 V AC/DC | 600 V AC/DC | 600 V AC/DC | 600 V AC/DC | 600 V AC/DC | 600 V AC/DC |
| Locking Mechanism | Enhanced positive lock (R-series) | Enhanced positive lock (R-series) | Standard positive lock (original DF22) | Standard positive lock (original DF22) | Enhanced positive lock (R-series) | Enhanced positive lock (R-series) |
| Packaging Suffix Code | (05) bag | (53) tray/embossed | (05) bag | (53) tray/embossed | (06) plating/packaging variant | (05) bag |
| Safety Certifications | UL, C-UL, TUV | UL, C-UL, TUV | UL, C-UL, TUV | UL, C-UL, TUV | UL, C-UL, TUV | UL, C-UL, TUV |
Key Differentiators
- Enhanced R-series positive locking mechanism (vs DF22-3P-7.92DSA(05))
- Mechanical keying to prevent mis-mating (vs Generic 7.92 mm pitch headers)
- Halogen-free UL94 V-0 housing (vs Older high-current headers with halogenated resin)
Design Notes
Estimated: derate the 30 A per-contact rating to approximately 24 A continuous at 70 C industrial ambient. Verified Web Data confirms the 30 A figure; derating follows Hirose's published derating curve for the DF22 series (10 A per pin above 70 C ambient). For higher continuous currents, use two parallel pins or upgrade to the DF60/DF63 series which carry more than 40 A per contact at a similar pitch.
Use 1.6 mm or thicker FR-4 with at least 2 oz copper on the through-hole pads to handle 30 A continuous without excessive voltage drop. Provide generous thermal relief spokes to ease hand soldering and rework. The 7.92 mm pitch requires through-hole pads of 1.8-2.0 mm finished hole size per Hirose's recommended PCB layout in the datasheet, with a minimum annular ring of 0.2 mm.
Do NOT use non-Hirose DF22C-series crimp contacts - the UL, C-UL, and TUV safety certifications are valid only with the matched DF22RC receptacle and the approved crimp contacts listed in the Hirose datasheet. Substituting third-party contacts derates the current capacity and voids the safety approvals. Also confirm the mechanical keying orientation before locking the receptacle; the R-series positive lock produces an audible click when fully seated - never force a mis-mated pair.
Compliance Information
RoHS (EU) 2015/863 compliant per Hirose CL No. CL0680-1038-6-05 (Verified Web Data). Halogen-free housing per IEC 61249-2-21. UL, C-UL, and TUV safety certifications per Hirose DF22R series datasheet. AEC-Q100 not applicable (this is a connector, not an active IC).