78172‑0002 is a 2‑circuit female receptacle housing belonging to Molex Pico‑EZmate 78172 series, 1.2 mm micro pitch wire‑to‑board connector system。This finished harness is manufactured by crimping gold‑plated Pico‑EZmate crimp terminals onto stranded wires and inserting terminals into 78172‑0002 housing.
It features ultra‑low‑profile vertical mating design, audible “click” snap‑lock to confirm full insertion, built‑in polarization key prevents reverse plug‑in. Gold‑plated contacts guarantee stable signal transmission and anti‑oxidation performance for frequent‑mating scenarios. Suitable for narrow‑space internal connection inside miniaturized equipment. Custom wire gauge, wire length, tin‑dipped open ends and secondary connector conversion are available, comply with RoHS‑2.0 & UL certification standards.
Specification
| Connector Housing Part Number | 78172‑0002 |
| Series | Pico‑EZmate 78172 |
| Pitch | 1.2 mm |
| Rated Current | 1.5 A per contact |
| Rated Voltage | 50 V AC / 50 V DC |
| Operating Temperature | ‑25 ℃ ~ +85 ℃ |
Advantages
Ultra‑Miniature Low‑Profile Form Factor
1.2 mm fine pitch and only 1.55 mm mated height, saves valuable PCB space for compact mini devices.
Gold‑Plated Contact Reliability
Gold‑plated phosphor‑bronze contacts resist oxidation, maintain low stable contact resistance, suitable for weak‑signal & small‑power transmission.
Audible Snap‑Lock & Anti‑Mis‑Mating Polarization
Distinct click sound confirms complete mating; polarization geometry blocks reverse insertion, reduce assembly failure rate in mass production.
LCP High‑Temperature‑Resistant Housing
LCP plastic withstands PCB reflow temperature for headers, anti‑deformation inside enclosed equipment.
Flexible Custom Harness Service
Support custom cable length, wire AWG, wire color, tin‑dipped open‑end processing and special marking according to project requirements.
Proven Industry‑Grade Stability
Mature Molex Pico‑EZmate system, good vibration resistance, widely adopted for consumer, medical and industrial miniature equipment internal wiring.
Application
Wearable & Portable Consumer Electronics
Smart wearable device internal signal & battery connecting harness, small handheld beauty instrument wiring.
Small Lithium‑ion Battery Modules
Mini battery pack internal power‑signal connection for small rechargeable devices.
Portable Medical Instruments
Patient monitoring small modules, portable diagnostic equipment internal wire‑to‑board interconnection.
Office & Smart Home Devices
Mini printer, scanner, small smart home sensor internal wiring harness.
Telecom & Industrial Mini Modules
Network auxiliary accessories, small industrial sensor internal signal‑power wiring.
FAQ
Q1: What is 78172‑0002?
A: 78172‑0002 is the 2‑pin female receptacle housing of Molex Pico‑EZmate 1.2 mm series, this cable assembly is finished harness built upon this housing with crimp gold‑plated terminals and wires。
Q2: What PCB header does 78172‑0002 mate with?
A: It mates with Molex 78171‑series SMT vertical male headers (board‑side).
Q3: What is per‑pin maximum current?
A: 1.5 A per single contact, for low‑voltage small‑signal / low‑power loops, not for high‑power applications。
Q4: What wire gauge fits this connector?
A: Designed for thin‑walled 28 AWG ~ 30 AWG stranded wire, do not use thicker wire.
Q5: Is this connector waterproof?
A: Standard version is non‑waterproof, designed for inside‑device internal wiring only, not for exposed wet environment.
