Product Introduction
QM PAG.4P.378.PLAC85GZ is a 78‑pin 4P‑size plastic push‑pull self‑locking straight plug dedicated to ultra‑high‑density signal interconnection. It adopts grey PSU housing, PPS high‑insulation insulator, and 0.5mm tin‑bronze gold‑plated contacts to deliver stable 2A current and low contact resistance. The product follows standard 4P outline and interface specifications, supports push‑pull quick locking, precise key anti‑misinsertion, and IP61 dustproof and splash‑proof protection. It operates steadily from ‑55℃ to 150℃, resists 15g vibration and 96hr salt spray, with mechanical life up to 1000 mating cycles. All materials meet RoHS requirements. This 78‑core high‑density connector is specially designed for multi‑channel signal transmission in medical electrophysiology catheters, precision diagnostic equipment, industrial automation, and high‑end testing instruments, providing a safe, stable and highly compatible interconnect solution.
Product Advantage
Standard 4P Interface & Full Compatibility Replacement
QM PAG.4P.378.PLAC85GZ is designed in full compliance with universal 4P connection dimensions and structure. It realizes direct plug‑and‑play interchange without modifying equipment panels or cables, providing a cost‑effective high‑reliability replacement solution for medical and industrial precision devices.
78‑Pin Ultra‑High‑Density Multi‑Channel Transmission
78‑pin compact layout integrates massive weak signals, sensing data and control commands in one connector. It effectively saves internal space and meets the high‑density wiring demands of electrophysiology catheters, multi‑channel monitoring and precision testing systems.
Medical‑Grade Contact System & Stable Signal Fidelity
Gold‑plated tin bronze contacts ensure low and stable contact resistance (≤15mΩ). High‑performance PPS insulator provides outstanding insulation, voltage resistance and anti‑crosstalk capacity, ensuring accurate and undistorted transmission of weak electrophysiological signals.
High‑Performance PSU Housing & Environmental Adaptation
Grey PSU engineering plastic housing features light weight, high rigidity, chemical resistance and good biocompatibility. It adapts to medical clean rooms, disinfection environments and long‑term clinical or industrial use.
Push‑Pull Self‑Locking & Precision Anti‑Misinsertion
Reliable push‑pull self‑locking mechanism enables fast mating and firm locking to avoid accidental disconnection. Special alignment key and mark design completely prevent wrong insertion, protecting equipment safety and improving system stability.
IP61 Protection & Wide Temperature Reliability
Mated state reaches IP61 dustproof and anti‑splash protection. It operates stably from ‑55℃ to 150℃, withstands 15g vibration and 96hr salt spray, maintaining consistent performance in complex medical and industrial environments.
RoHS Compliance & Long‑Term Durability
All materials meet RoHS environmental standards. The connector ensures stable electrical performance after long‑term use, with high consistency in mass production, suitable for medical consumables and high‑end equipment interconnection.
Technical Parameters
Parameters | Specifications |
Operating Temperature | -55°C~150°C |
Humidity(max) | <=95%[at 60°C/140°F] |
Salt Spray Corrosion | 96hr |
Vibration | 15g[10Hz~2000Hz] |
Mating Cycles | 1000+ times |
Contact Material | Gold Plated Tin Bronze |
Housing Material | PSU GREY |
Insulator Material | PPS |
Contact Diameter | 0.5mm |
Rated Current | 2A |
Rated Voltage | 400V AC |
Insulator Resistance | >=5000 mΩ[at 500V DC] |
Contact Resistance | <=15 mΩ |
IP Rate | IP61(Mated) |
Product Uses
Medical Electrophysiology & Catheter Equipment
Suitable for cardiac EP catheters, electrophysiology mapping systems, ablation devices and interventional therapy instruments to support ultra‑multi‑channel weak signal transmission.
Medical Monitoring & Diagnostic Devices
Used in multi‑parameter monitors, medical imaging equipment, clinical analyzers, in vitro diagnostic devices and high‑end sensing systems.
Industrial Automation & Multi‑Channel Control
Ideal for industrial robots, automated production lines, semiconductor equipment, multi‑channel data acquisition and signal control systems.
High‑End Test & Measurement Instruments
Applied in precision oscilloscopes, data loggers, biological signal collectors, laboratory analyzers and field testing devices.
Aerospace & Marine Equipment
Suitable for aerospace ground test systems, marine detection devices, shipboard control and communication equipment with high requirements for stability and anti‑interference.
FAQ
Q: What is the protection rating of QM PAG.4P.378.PLAC85GZ?
A: It reaches IP61 when mated, with dustproof and basic splash‑proof performance, suitable for medical clean rooms and indoor precision equipment.
Q: Is this product compatible with standard 4P connectors?
A: It is designed according to standard 4P interface specifications and can be directly mated and interchanged with mainstream 4P connectors in most applications.
Q: Why is it suitable for electrophysiology catheter applications?
A: It provides 78‑pin ultra‑high‑density transmission, lightweight PSU housing, medical‑grade gold‑plated contacts and wide temperature resistance, perfectly matching the signal and environment requirements of EP catheters.
Q: Can housing color, key code and cable diameter be customized?
A: Front ring color, alignment key and cable clamping size can be customized according to customer requirements. Some customized options require minimum order quantity.
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