17.5V 10A Medical Charger JA150KLA AC Adapter for A5 Ultrasound Replaceable Adapter

KOEED · Medical Power Supplies · AC Adapter · In stock

What Is the JA150KLA Medical AC Adapter?

The JA150KLA is a medical-grade AC-to-DC power adapter engineered to deliver a regulated 17.5 volts at up to 10 amps (175 watts) to portable diagnostic ultrasound systems. Originally supplied as the companion charger for the A5-series cart-based ultrasound platform, this adapter converts wall AC mains to the clean, stable DC rail that the system's internal power management and battery charging circuit expects. Unlike generic laptop-style bricks found on consumer marketplaces, the JA150KLA is built with tighter output regulation, reinforced isolation between primary and secondary sides, and more conservative component derating consistent with medical electrical equipment design practices.

In short: The JA150KLA is the factory-spec replacement AC adapter for A5 ultrasound platforms — a regulated 17.5V / 10A medical power supply that matches the original charger's output profile, connector pinout, and safety isolation requirements.

What Makes This Adapter Different from a Generic Power Brick

1. Regulated 17.5V Output with Tight Tolerance

What it means: The output voltage stays within a narrow band around 17.5V even as the load current varies from idle to the full 10A rating.
Why it matters: Ultrasound front-end electronics — particularly the transmit beamformer and receive amplifier chains — are sensitive to supply ripple. Voltage sag or overshoot can introduce image artifacts or, in severe cases, trigger system self-test faults that prevent boot-up.
Result: Consistent imaging performance and reliable system startup, without the flickering display or intermittent probe recognition that off-spec chargers can cause.

2. Medical-Grade Isolation Barrier

What it means: The transformer and optocoupler-based feedback path inside the JA150KLA provide reinforced insulation between the mains (primary) side and the DC output (secondary) side, typically rated to withstand several kilovolts of transient voltage.
Why it matters: In a clinical setting, the ultrasound machine may be connected to a patient via transducers while the charger is plugged into wall power. The isolation barrier is the last line of defense preventing mains fault current from reaching the applied part.
Result: Compliance with the leakage current limits defined in IEC 60601-1 for medical electrical equipment, and peace of mind for biomedical engineering teams.

3. 10A Continuous Current Capability

What it means: The adapter sustains 10 amps of output current without thermal throttling, even during extended scanning sessions where the ultrasound is both operating and charging its internal battery simultaneously.
Why it matters: A charger rated for a lower current (e.g., 6A or 8A) may appear to work initially but will overheat and eventually shut down or fail when the system draws full power during a long exam.
Result: Uninterrupted operation throughout an entire clinical day without the charger becoming the bottleneck.

Key Specifications

When You Need This Adapter

• Lost or damaged original charger: The most common scenario — the original JA150KLA was misplaced during a department move or its cable was damaged from repeated coiling. A direct replacement restores full functionality without any system configuration changes.
• Multi-room deployment: A single ultrasound cart that rotates between exam rooms, procedure suites, and the ER benefits from having a dedicated charger in each location, eliminating the need to move the adapter with the machine.
• Spare for field service kits: Biomedical engineering teams that maintain a fleet of A5 units keep a spare JA150KLA in their service kit to swap in during troubleshooting, quickly ruling out power supply faults.
• Training and simulation labs: Ultrasound training centers running multiple A5 stations need replacement adapters as consumable spares for their equipment pool.
• Equipment refurbishment: Third-party medical equipment refurbishers restoring pre-owned A5 systems to like-new condition require factory-spec chargers to complete the package before resale or donation.

Before You Order: Quick Compatibility Check

To avoid ordering the wrong adapter, confirm these three items against your existing charger or ultrasound service manual:

1. Output voltage must be 17.5V DC. A charger with a different output voltage — even 19V — may power the system but risks damaging the internal DC-DC regulation stage over time.
2. Current rating must be at least 10A. The system draws peak current during simultaneous scanning and battery charging. A lower-rated adapter will overheat or trigger overcurrent protection.
3. Connector barrel dimensions and polarity must match. Measure the outer diameter, inner pin diameter, and confirm center-positive polarity. If uncertain, send a photo of your original adapter's connector to our team for verification.

Frequently Asked Questions

"Can I use this JA150KLA adapter on a different brand or model of ultrasound machine?"

The JA150KLA is specifically matched to the A5 ultrasound platform's voltage, current, and connector requirements. While the 17.5V / 10A output may look similar to chargers used by other portable ultrasound brands, the connector barrel dimensions, center pin diameter, and polarity are almost certainly different. Plugging this adapter into a machine it was not designed for could result in a loose connection, intermittent power, or permanent damage to the DC input jack. Always cross-reference your equipment's service manual for the exact charger part number. If you are sourcing adapters for a mixed fleet, send us a list of your ultrasound models and we will help match each one to its correct charger.

"What are the signs that my current JA150KLA adapter is failing?"

The most common early warning sign is the ultrasound intermittently switching between AC (mains) and battery power even when the charger is plugged in — this usually points to a frayed DC output cable near the strain relief. Other indicators include: the adapter case becoming too hot to touch after 30 minutes of use (suggesting internal capacitor degradation), the system battery failing to reach full charge even after being plugged in overnight, or visible damage to the AC input connector or DC output barrel. If the adapter emits a high-pitched whine or buzzing sound, that typically indicates a failing switching transistor or transformer — replace it immediately.

"Is this adapter certified for use in a hospital or clinic environment?"

Medical AC adapters supplied with diagnostic ultrasound systems are designed to meet the relevant clauses of IEC 60601-1 (general safety) and IEC 60601-1-2 (electromagnetic compatibility) as part of the overall medical electrical system. The JA150KLA incorporates the reinforced insulation and low leakage current characteristics expected of a medical power supply. However, certification markings should be verified on the actual adapter label — look for the CE mark, UL listing, or CB scheme marks printed on the rating plate. We recommend biomedical engineering departments confirm acceptance criteria against their institution's incoming inspection protocol.

"My original adapter had a different part number printed on it — will the JA150KLA still work?"

Medical device manufacturers sometimes revise adapter part numbers across production runs without changing the electrical specifications. If your original adapter outputs 17.5V DC at a minimum of 10A and has the same physical connector, the JA150KLA is very likely compatible. However, always match output voltage, output current (equal or higher is acceptable), connector dimensions, and polarity. If your original label shows a different voltage — for example, 15V or 19V — do not substitute the JA150KLA. Send us a clear photo of your original adapter's label and our team will confirm compatibility within one business day.

koeed.com — Your Trusted PLC Supplier. Industrial electronics, automation components, medical power supplies, and specialty parts. Worldwide shipping with 24-hour quote turnaround at Moritta@KOEED.COM.