Philips AED Pads Compatibility Guide: Models, Part Numbers & Specs

When protecting lives during sudden cardiac arrest (SCA), ensuring your Philips defibrillator is paired with the exact compatible electrode pads is critical. Philips manufactures multiple automated external defibrillators (AEDs)—including the HeartStart FRx, OnSite, Home, and legacy FR2 lines—each requiring specific electrode cartridges.

In this guide, we break down each pad type, shelf-life benchmarks, and pediatric protocols, complete with an official cross-reference chart.

🚑 Why Exact AED Pad Compatibility Matters

AED pads serve as the electrical conduit between the patient and the defibrillator’s analysis computer. They deliver life-saving biphasic defibrillation energy and monitor cardiac rhythms in real time. For an AED to remain rescue-ready, its pads must be:

• 100% Compatible: Correct connector pins, impedance tolerance, and housing fit.
• Unexpired: Fresh water-based conductive adhesive gel with active shelf life.
• Age/Weight Appropriate: Calibrated for adult vs. pediatric shock energy delivery.

Deploying expired or incompatible pads can cause shock impedance errors and fatal rescue delays. Facilities should always maintain pre-connected pads and at least one factory-sealed spare set.

🧰 Types of Philips AED Pads & Model Specifications

Review the technical specifications, compatibility, and part numbers for each Philips electrode cartridge below:

1. Philips HeartStart SMART Pads II (Part # 989803139261)

• OEM Part Number: 989803139261
• Compatible Defibrillator: Philips HeartStart FRx AED (Model 861304)
• Target Patient: Adults and children (when paired with the FRx Infant/Child Key)
• Shelf Life: 2 to 2.5 years from date of manufacture
• Packaging Design: Pre-connected protective case with pull handle

SMART Pads II eliminate the need to purchase separate pediatric pads for the FRx. When inserted into the FRx with the optional Infant/Child Key, the AED automatically attenuates shock energy and modifies CPR voice prompts for a child. This makes the FRx system exceptionally cost-effective for mixed environments like schools, pools, and sports facilities.

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2. Philips HeartStart Adult SMART Pads (REF M5071A)

• OEM Part Number: M5071A
• Compatible Defibrillators: Philips HeartStart OnSite (HS1 / M5066A) and Home AED (M5068A)
• Target Patient: Adults and children weighing over 55 lbs (8+ years)
• Shelf Life: 2 years
• Design: Snap-in cartridge with integrated pull handle

These cartridges are pre-installed directly into the front bay of OnSite and Home units. The cartridge features an integrated pull handle that automatically breaks the foil seal when pulled in an emergency.

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3. Philips HeartStart Infant/Child SMART Pads (REF M5072A)

• OEM Part Number: M5072A
• Compatible Defibrillators: Philips HeartStart OnSite (M5066A) and Home AED (M5068A)
• Target Patient: Infants and children under 55 lbs or under 8 years of age
• Shelf Life: 2 years
• Design: Energy attenuator cartridge reducing shock to 50 Joules

Unlike the FRx (which uses an external key), OnSite and Home AEDs require swapping to this dedicated M5072A cartridge for infant/child rescues. Highly recommended for daycares, elementary schools, and pediatric clinics.

4. Philips HeartStart FR2 Adult Pads (DP2 / M3870A)

• Compatible Defibrillators: Philips HeartStart FR2 and FR2+
• Target Patient: Adults
• Shelf Life: 2 years
• Design: Traditional plug-style lead-wire connector

While the FR2 platform has been officially retired by Philips, many organizations maintain active units. Ensure pads are inspected regularly for date compliance before planning your transition to an FRx or OnSite device.

5. Philips HeartStart FR2 Pediatric Pads (M3871A)

• Compatible Defibrillators: Philips HeartStart FR2 and FR2+ AEDs
• Target Patient: Children under 55 lbs (under 8 years)
• Shelf Life: 2 years
• Design: Built-in passive attenuator for low-energy shocks

📦 Pad Maintenance & Compliance Best Practices

• Monitor Stamped Expiration Dates: Philips electrode gel has a 24 to 30 month lifespan. Note expiration dates upon delivery and reorder 60 days before expiration.
• Keep Pads Pre-Connected: Pads should always remain plugged in or snapped into the unit’s bay to pass automatic daily self-tests.
• Always Stock a Backup Cartridge: In prolonged CPR events, sweat or chest hair may necessitate applying a second set of pads.
• Purchase OEM-Certified Stock: Counterfeit or third-party pads can fail continuity tests. Always purchase authentic inventory from authorized distributors like AEDLand.

❓ Frequently Asked Questions

Q: What is the official part number for Philips FRx replacement pads?

The official Philips OEM part number is 989803139261 (HeartStart SMART Pads II). This cartridge is designed exclusively for the HeartStart FRx defibrillator.

Q: Can I use Philips M5071A pads on a HeartStart FRx unit?

No. The M5071A cartridge is designed strictly for OnSite and Home models. The Philips HeartStart FRx requires SMART Pads II (part # 989803139261).

Q: Can I use adult SMART Pads II on an infant or child?

Yes, on the FRx only. When used with the HeartStart FRx Infant/Child Key, SMART Pads II are cleared for infants and children under 55 lbs.

Q: Which battery powers the FRx and OnSite AEDs?

Both models use the exact same long-life lithium battery pack: the Philips M5070A HeartStart Battery.

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• ⚡ Buy Philips HeartStart FRx SMART Pads II (989803139261) →
• ⚡ Buy Philips HeartStart OnSite M5071A Adult Pads →
• 🔋 Buy Genuine Philips M5070A 4-Year Batteries →

Published by AEDLAND. Authorized supplier of emergency medical equipment, AED supplies, and compliance management.