53253-0370 データシート要約: 主な仕様と評価概要
Background: What the 53253-0370 Is and Where It Fits
Part family & basic description
Point: The part is a compact, single-row PCB signal header with three positions and a 2.00 mm pitch used for low-voltage board-to-board or board-to-cable signal interconnects. Evidence: The datasheet enumerates it as a 3-position, vertical through-hole signal header with standard rectangular pins. Explanation: That form factor is optimized for space-constrained layouts where a low-profile vertical connector is needed for logic-level signals, sensor lines, or configuration jumpers on modern assemblies.
When to choose this part vs. alternatives
Point: Choose this header when you need a small footprint, simple through-hole robustness, and low-current signalling. Evidence: The part’s 2.00 mm pitch and three-pin count make it best for tight signal clusters rather than power distribution. Explanation: If your design requires higher current, easier hand mating, or more mechanical tolerance, opt for larger pitch or power-rated connectors; conversely, this header reduces PCB area and simplifies routing for low-voltage control or I/O lines.
Key Electrical Specs & Ratings (Data Deep-Dive)
Current, Voltage & Resistance
Point: Conservative current rating suitable for low-power signals. Evidence: Typical nominal current in the low-ampere range. Explanation: Treat as continuous current limit (~2 A class) and derate for temperature.
Plating & Soldering
Point: Tin plating drives solderability. Evidence: Solder-pin termination with tin finish. Explanation: Manage bridging risk with controlled pad geometry and recommended reflow profiles.
| Parameter | Typical Value / Guidance |
|---|---|
| Positions / Pitch | 3 positions, 2.00 mm pitch |
| Current Rating | ~2 A (continuous class) |
| Contact Resistance | ≤30 mΩ (typical) |
| Plating | Tin finish (solderable) |
| Termination / Mounting | Through-hole solder tails |
| PCB Hole Size | Tail ~3.50 mm; hole Ø ~0.9 mm |
Mechanical Dimensions & PCB Considerations
Footprint & Envelope
Use the 3.50 mm tail length to set pad annulus expectations. Ensure mating components do not infringe the mechanical envelope, allowing for tool clearance during assembly.
Mounting & Retention
Through-hole mounting provides solid mechanical retention. For vibration-prone environments, add mechanical support like glue fillets or reinforced pads.
Environmental, Reliability & Compliance Notes
Temperature & Lifecycle: Design for derating at extremes. Plastic housing meets specific flammability needs. Plan for limited mate/unmate cycles.
Certifications: RoHS-compliance is standard. Always request certification copies for safety-regulated systems to ensure full validation.
Practical Selection Checklist & Implementation
1 Selection Checklist
- ✔️ Verify pitch (2.00 mm) & positions (3)
- ✔️ Confirm current rating (~2 A)
- ✔️ Confirm tin plating/through-hole style
- ✔️ Check tail length vs. board stackup
- ✔️ Validate solder process compatibility
2 Post-Design Verification
Implement slightly elongated pads for tails, define solder mask relief to avoid bridging, add anchor vias for stress, and perform visual/X-ray inspection for joints.
Procurement: Evaluate finish tradeoffs (Tin vs. Gold) for low-current signal reliability.
Summary
- Highlights: Compact 3-position, 2.00 mm-pitch header, ~2 A capability, ideal for space-limited signal interconnects.
- Critical confirms: Current rating, contact resistance, 3.50 mm tail length, and proper through-hole sizing.
- Follow the checklist: Verify plating, process compatibility, and request compliance documentation to avoid rework.
Frequently Asked Questions
Is the 53253-0370 rated for continuous 2 A operation?
The datasheet places the part in a low-ampere class. Designers should treat the published value as a guideline, derate for elevated board temperatures and verify with thermal testing.
What PCB footprint dimensions are recommended for 53253-0370?
Focus on 2.00 mm pitch with ~3.50 mm tails; use plated through-hole pads (~0.9 mm hole) with proper annulus and mask clearance. Always validate against the supplier's footprint.
How should soldering and plating choices affect selection of 53253-0370?
Plating determines long-term integrity. Tin is cost-effective but prone to oxidation; Gold improves low-current reliability. Confirm your solder profile and environmental needs before final selection.
