Application — Medical & Lab
Precision Connectors for Medical & Lab Instrumentation
Low-voltage signal and power interconnects for diagnostic devices, portable monitors, handheld probes and benchtop analyzers — where leakage, contact resistance and cleaning durability directly affect clinical reliability. Compact micro-circulars with gold-plated contacts, smooth wipe-down shells and IP65+ sealing for disinfection environments.
Where It Fits
Where YXY micro connectors live inside the device
Not the mains inlet — these are the 3–8 wire links between sensor head and mainboard, battery dock and handheld, consumable cartridge and reader. Failure shows up as intermittent readings, not a tripped breaker, so contact stability matters more than ampacity.
Diagnostic & imaging peripherals
Ultrasound probes, ECG/EEG lead hubs, pulse oximeter pods, dermatoscopes, intra-oral scanners. 4–7 contacts carry micro-volt sensor signals, 5V bias and shield. The cable flexes thousands of times; the connector must hold less than 10mΩ drift after flex. SP11 threaded micro with strain-relief overmold prevents cable-break artifacts.
Portable & wearable monitors
Portable ECG, Holter, infusion pump handsets, CPAP hoses, wearable SpO₂. The 08mm YM08 or Push-Pull breakaway is preferred over threaded — one-handed blind mating, 200g retention, no cross-threading in gloves. Low mating force of 4–8N with an audible click.
Lab & IVD benchtop analyzers
Blood-gas, PCR, immunoassay, centrifuge lid interlocks, liquid-handler heads. The connector sits behind a drip tray — it needs an IP65 front seal and rear potting-friendly solder cups. 1.5A per pin handles valve and solenoid pull-in; gold plating prevents fretting from lab vibration.
Therapy & sterilization-adjacent
Electrosurgical handpieces, endoscope processors, dental scalers, autoclave-adjacent docking trays (wipe only). The shell must survive daily 70% ethanol, isopropanol and quaternary ammonium wipes. Smooth nickel-plated brass with LSZH overmold — no paint to flake. Not implantable.
Scope note: YXY supplies device & instrumentation interconnects — probe cables, docking, internal harness — not active implantable or Class III direct patient-invasive connectors. Materials are industrial-grade biocompatibility-adjacent (see compliance below), not ISO 10993 certified for implanted contact. For skin-contact handles we recommend an overmolded cable exit and recessed contacts.
Design Requirements
Design requirements that kill generics
Medical handles are measured in grams and millimeters. A “waterproof IP68 outdoor” connector is usually too big, too stiff and too rough. These are the gates a medical micro connector must pass before it ever sees a BOM.
| Requirement | YXY micro spec — why it matters clinically |
|---|---|
| Compact envelope | Ø8–11mm mating, <18mm cable OD. Fits 20–24mm probe handles and 38mm IVD cartridge slots without crowding the thumb grip. 0.75mm thread pitch for short engagement. |
| Contact finish | Gold 0.2–0.5µm over nickel 1–2µm on copper alloy. Keeps contact resistance <5mΩ initial, <10mΩ after 500 cycles and 40°C/93%RH. Prevents the fretting oxides that masquerade as sensor drift. |
| Current / voltage | 1.5A / 50V DC per pin (30V AC), 0.5A derated at 4-pin. Covers 5V/12V auxiliary, RTD/thermistor bias and 12V solenoid/valve peaks. 500V AC dielectric, >1000MΩ insulation. |
| Durability | ≥500 cycles (SP11/YM08), 1000–5000 for Push-Pull metal. A ward device mated 4×/day × 250 days = 1000 cycles/year. Tested per IEC 60512-9a, ±10µm wear on gold. |
| Sealing | IP65 (wipe-down) to IP67 (splash/drip) mated. Silicone O-ring + rear grommet. Survives daily ethanol/quat wipes and a 1m drip. Not IP68 submersion — the unmated side is not sealed, so keep it behind the drip tray. |
| Temperature & cleaning | −25 to +80°C operation, PA66/metal shell. Withstands 70% ethanol, isopropanol and CaviWipes-type quats. No autoclave (134°C steam) — specify stainless + glass-seal if needed. |
| Mechanics | Push-Pull 4–8N mate / 8–15N unmate; threaded 0.15–0.25Nm. 15° blind-mate chamfer with mis-mate prevention key. Cable flex >5000 × 90° at 50mm radius. |
Test conditions: 20°C, 45%RH, 1.5A load, 2mΩ lead compensated. Derate current 20% for 6+ pins bundled. IP ratings per IEC 60529, mated with a YXY cable assembly; panel-cutout tolerance ±0.05mm.
Envelope & handling — the hidden spec
- Weight: 2.1g (YM08 panel) / 4.8g (SP11 cable) — the probe stays neutral-balanced.
- Mating length: 15.5mm YM08, 19mm SP11 — no knuckle-bump on dense panels.
- Glove test: the M14 knurl works with 6mil nitrile; the YM08 snap works with double-gloving.
- Cable OD: 3.2–4.5mm PUR/TPU — soft touch, drag under 40g on neonatal probes.
- Color: nickel/black shell, white/blue insulator — no black carbon near optics.
Signal integrity notes from field returns
- Twist pairs for ECG/EEG: 2× twisted + drain — use the 5-pin (4 signal + shield) Push-Pull 5B.
- Keep the unshielded pigtail under 18mm inside the handle — cuts 50/60Hz pickup by roughly 8dB versus 40mm.
- Ground pin first-mate / last-break on Push-Pull: pin 1 is 0.3mm longer.
- Overmold with 35A shore TPE at the cable exit: passes a 1.2m drop onto steel and a −20°C crack test.
Quick selector — by handle
Give us the outer diameter, pin count, IP rating and cable length — we return a 2D panel cut and price in 24h, with a free YM08/SP11 STEP file for the handle fit check. Request the selector sheet
Recommended Series
Built for handles and benches, not lampposts
Three families cover 90% of 0.5–1.5A medical harnesses. All share gold contacts, silicone seals and PUR/TPU cable options — panel + cable, male/female, solder and crimp. Pick the lock that matches the workflow, not the datasheet max.
SP11 Micro Circular — the lab workhorse
When the device sits on a bench and the user has two hands. Positive threaded lock (0.2Nm), no accidental pull. 2–7 pin, 1.5A/50V, IP65 mated with a silicone O-ring. Smooth brass/nickel shell wipes clean; the rear grommet accepts 3.2–4.5mm PUR. Solder cup and crimp options for field repair.
Use for: IVD analyzer lid harness, centrifuge interlock, ultrasound probe bay, lab liquid-handler head. Replaces outdoor M12 where space matters.
View SP11 family
YM08 Mini Push-Pull — for wearables & cannula handles
The 8mm breakaway. Mate with a click, pull to release — ideal for gloved, blind or patient-tugging risk. 3–8 pin in 8mm, 1A/30V per pin (1.5A on 3-pin), friction lock 8–12N. White/blue insulator for visual pin-check. Weighs 2–3g panel side; the cable stays limp on neonate leads.
Tug-safe: calibrated to release before the cable yanks the device off a table — reduces tip-over risk on bedside monitors.
View YM08 family
Push-Pull Metal Circular — when the cable never sleeps
Chrome-plated brass, collet strain relief and a 45° blind-mate chamfer for high-cycle wards. 2–7 pin, 1.5–2A, IP50 (0B) to IP65 (sealed 1B). 1000–5000 cycles, latch fatigue rated, keyed to prevent a 5-pin into 4-pin mis-mate. The cable collet holds 30N pull.
Use for: bedside monitor trunk cables, ECG hub splitters, therapy handpieces reprocessed daily. Specify sealed 1B within 30cm of a fluid line.
View Push-Pull metalAlso available — panel & cable done as a system
We ship the pair, not just the shell — so the seal actually works:
- Panel side: nut + O-ring + anti-rotation flat, PCB solder cup / right-angle / crimp, optional rear potting cup.
- Cable side: pre-wired 0.3–2m PUR/TPU, shield drain terminated, 35A TPE overmold, custom length and labeling.
- Adapter: SP11 to YM08 pigtail for legacy analyzer retrofits — no panel re-cut.
- Fix: use the YXY mated pair; mixing with generic M8/M12 risks a 0.15mm pin offset and a resistance jump.
How we quote medical micros
- MOQ 50 pcs per pin count (10 for evaluation) — medical programs start at 50, not 1,000.
- Samples in 5–7 days, with 2D + STEP + contact layout, all on one lot so your verification is not a lottery.
- Panel cut DXF + keep-out included — no handle interference.
- Batch code + date on the shell; COC with contact resistance and IP lot test.
Compliance
Biocompatibility & compliance — plain language, not copy-paste
These are not implantable connectors. For handles, benches and docking — where the user wipes down daily and the patient touches only the overmold — here is what we do and what we don’t claim.
Materials & skin-contact notes
- Contacts: C3604/CuSn copper alloy, gold 0.2–0.5µm over nickel 1–2µm. No cadmium, no cobalt binder. Low nickel exposure — the contact tip is gold-covered; the shell is not skin-worn.
- Shell: HPb59-1 brass with bright nickel 5–8µm, or PA66-GF for the insulated panel. No latex, no phthalate plasticizer in standard PUR/TPU cable.
- Insulator: PPS / LCP, UL94 V-0, CTI >175, glow-wire 750°C. White/blue through-color — no paint near the fluid path.
- Seals: silicone VMQ O-ring, −40 to +180°C, compression set <15% at 70°C.
- Overmold: halogen-free TPE 35A, skin-touch tested; cytotoxicity report on request for the TPE lot, not for the metal shell.
Not claimed: ISO 10993-5/-10, USP Class VI, or ISO 13485 system certification for the connector itself. If your device needs that lineage, we supply the material lot CoA + plating thickness report for your file — and can build to your certified overmold compound.
Regulatory & lot paperwork — what ships with the box
- REACH & RoHS: fully compliant, SVHC <0.1% per current candidate list, lead-free solder cups, Cr(VI)-free plating. REACH/RoHS declaration per lot + SGS on file (annual).
- UL: insulator resin UL94 V-0, file E* on request; the connector is component-level, not a UL-listed end device.
- Traceability: laser lot code on shell, date code on bag; COC with 4-wire contact resistance, insulation and IP sample test (AQL 1.0).
- Plating audit: gold thickness 100% XRF-sampled, not batch-averaged — min 0.2µm, typ 0.35µm on SP11, with a nickel barrier against copper migration at 85°C storage. Report ships in the bag.
- PFAS note: no PTFE on standard seals or cables; PTFE-free BOM available for PFAS-restricted tenders.
Cleaning compatibility (wipe-down, not submerge)
- Validated wipe: 70% ethanol / 70% IPA, 5 min dwell, 500-cycle micro-crack pass.
- Common quat wipes: benzalkonium & didecyl dimethyl ammonium (CaviWipes-type) pass with no stress cracking on the shell. Nickel may show a faint rainbow after repeated quat — functional, not corrosion; rinse with DI water if cosmetics matter.
- Not for: autoclave 121–134°C steam, gamma >25kGy, or prolonged soak. For those we quote glass-seal hermetic or 316L stainless builds separately.
- Wipe-friendly geometry: the SP11 knurl is 0.5mm-pitch fine diamond (one-stroke wipe), Push-Pull metal has no knurl at all, and the panel O-ring sits behind the bezel so fluid runs off, not into the PCB cavity. PUR jacket swells <3% in 70% IPA and stays flexible at 4°C.
Need it in your DHF?
We provide on request:
- STEP + 2D with panel cut & pin-out
- Plating thickness XRF report (Au/Ni)
- Material datasheets + UL yellow card
- REACH/RoHS lot declaration (EN)
- Resistance & IP lot test excerpt
Typical turnaround 24h. No clinical claim implied — we supply connector data; your device validation owns biocompatibility per intended use. Request the DHF pack
Wipe-Down & Reprocessing
Design for the cart, not the autoclave
In wards and labs, connectors are wiped between patients, not autoclaved. The failure mode is creeping residue in a knurl, then a sticky mate that a nurse forces — bending a pin. We design to avoid that, and we document it for your IFU.
| Rule | Wipe-down & handling guidance |
|---|---|
| Do | Daily wipe with ethanol/IPA or a quat wipe, 30s dwell, soft cloth. Mate with the YXY cable only; replace the cable if the O-ring is nicked. |
| Do | Cap unmated panel connectors with the YXY dust cap when on a wet bench — keeps spray out of the contacts. |
| Don’t | Autoclave, soak in glutaraldehyde, or ultrasonic-bathe the assembly — fluid wicks into the insulator. |
| Don’t | Mate with saline on the pins — wipe dry first; salt crystals raise contact resistance by 50–200mΩ. |
Reprocessing note for your IFU
If your device IFU requires a cleaning instruction for the connector, we supply a one-paragraph wipe procedure you can paste — validated chemicals, dwell and dry time. Not a sterilization claim: a cleaning compatibility note for non-sterile accessories. Ask for the “YXY Medical Wipe Note EN-2025”.
Get a Quote
Tell us the handle — we’ll fit the connector
Send handle OD, pin count, IP and cable length. We reply in 24h with the 1–2 options that actually fit — not a catalog blast: mated model + alternative (threaded vs push-pull), panel cut DXF + keep-out, STEP + pin-out + cable wiring diagram, unit price at 50 / 500 / 2k with lead time and MOQ, plus the REACH/RoHS and plating report excerpt with the wipe note for your DHF.
Or email waheed@yxydz.com with subject “Medical SP11/YM08” — include device type, pins, panel thickness, cable length and qty/year. Dongguan Yuelong Electronic Technology Co., Ltd. — IATF16949 + ISO9001, 12 production lines, 200M+ assemblies a year, 24h DFM reply. Prefer to talk? Waheed answers on WhatsApp in English/CN.
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