Philips HeartStart OnSite Infant/Child SMART Pads Cartridge (M5072A)
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Official pediatric replacement cartridge for the Philips HeartStart OnSite (M5066A) and Home (M5068A) AEDs. Built-in energy attenuator automatically reduces shock energy to a child-safe 50 Joules.
- Patient Criteria: Designed for children under 8 years old or weighing under 55 lbs (25 kg).
- Guaranteed Fresh Dates: Full ~2-year factory shelf life with sealed expiration dates direct from Philips.
- In-Stock Availability: Bypass widespread national backorders with authentic inventory ready to ship.
- Clear Clinical Placement: Visual teddy bear graphics guide rapid front-and-back pad positioning.
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Philips HeartStart OnSite Infant/Child SMART Pads Cartridge (M5072A)
The Philips M5072A Infant/Child SMART Pads Cartridge is the official OEM pediatric defibrillation replacement for the Philips HeartStart OnSite (M5066A), Home (M5068A), and HS1 defibrillators. Engineered specifically for young children, this specialized cartridge incorporates an internal energy attenuator that automatically instructs the AED to lower its shock energy from standard adult levels (150 Joules) down to a child-safe 50 Joules.
When clicked into the AED, the HeartStart voice prompts automatically adjust to pediatric rescue protocols, providing step-by-step guidance tailored to child CPR and defibrillation.
Fitment & Patient Criteria
| Parameter | M5072A Pediatric Cartridge | M5071A Adult Cartridge |
|---|---|---|
| Patient Age & Weight | Under 8 Years Old / Under 55 lbs (25 kg) | 8 Years & Older / Over 55 lbs |
| Delivered Energy | 50 Joules (Biphasic) | 150 Joules (Biphasic) |
| Pad Placement | Anterior/Posterior (Center of Chest & Center of Back) | Upper Right Chest & Lower Left Ribs |
| AED Compatibility | HeartStart OnSite, Home, HS1 | HeartStart OnSite, Home, HS1 |
Note for Philips FRx Owners: The FRx defibrillator does NOT use this cartridge. The FRx uses standard pads paired with a reusable Philips FRx Infant/Child Key (Part # 989803139311).
How to Install the M5072A Cartridge & Stop AED Chirping
If your HeartStart AED is beeping with a flashing blue “i” button, follow this clean sequence:
Check Voice Prompt
Press the flashing blue “i” button. The unit will verbally announce the status code.
Slide Release Latch
Slide the top latch to eject the old cartridge. Click the new M5072A cartridge firmly into place.
Verify Green Flash
The unit runs an automated self-test, announces “Self-Test Passed,” and returns to flashing green.
Technical Specifications
| Manufacturer Part Number (MPN) | M5072A |
| GTIN / UPC | 0850633000027 |
| Shelf Life | Minimum 2 Years from Date of Manufacture |
| Target Patient Group | Infants and Children Under 8 Years Old or Under 55 lbs (25 kg) |
| Delivered Defibrillation Energy | 50 Joules Nominal into 50 Ohm Load |
| Condition | 100% Brand New Genuine OEM Philips, Sealed Cartridge |
Frequently Asked Questions
Are pediatric pads required for schools and daycare centers?
Yes. Most state safety codes and childcare licensing regulations require elementary schools, preschools, daycares, and youth sports facilities to maintain pediatric pads on-site for children under 8 years of age or weighing under 55 lbs.
Can I use the M5072A pediatric pads on an adult?
No. The built-in attenuator permanently reduces shock energy to 50 Joules, which is insufficient to terminate ventricular fibrillation in an adult. Always use the standard M5071A Adult SMART Pads for patients aged 8 and older.
Should the pediatric cartridge remain installed in the AED?
For general public facilities, elementary schools, and businesses, your M5071A Adult Pads should remain installed in the AED. Store the M5072A Infant/Child cartridge in the clear back pocket of your HeartStart carrying case so responders can quickly swap it in if the victim is a child.
Does the M5072A cartridge fit the Philips HeartStart FRx AED?
No. The M5072A cartridge is exclusively engineered for the HeartStart OnSite (M5066A) and Home (M5068A). The Philips FRx utilizes standard SMART Pads II paired with the reusable Philips FRx Infant/Child Key (Part # 989803139311).
What is the shelf life of the M5072A cartridge?
Philips Infant/Child SMART Pads have a shelf life of approximately 2 years. The exact expiration date is stamped clearly on the front of the cartridge housing.
| Weight | 0.5 lbs |
|---|---|
| Dimensions | 7.5 × 5 × 1.5 in |
| Brand: | Philips |
| Manufacturer Part Number (MPN): | M5072A |
| Alternate Part Numbers: | 861292, 989803108851, M5072A-ABA |
| GTIN / UPC: | 0850633000027 |
| Compatible Models: | Philips HeartStart OnSite (M5066A), HeartStart Home (M5068A), HS1 |
| Patient Type: | Infant / Child Under 8 Years or Under 55 lbs |
| Shelf Life: | Guaranteed 2+ Years / Freshest Expiration Dates |
| Energy Output: | 50 Joules Attenuated Biphasic |
| Condition: | New 100% Genuine OEM Philips |







Cuong Phan –
I needed replacement infant/child pads for our Philips HeartStart OnSite and found the M5072A pads. The ordering process was simple, and I was happy to receive the genuine Philips product. It’s reassuring to keep the appropriate pediatric pads available for our AED.