Coral RF N532ES‑B vs. N624PA: The Only Real Difference Is Power and Efficiency
Both modules are built on the same TI CC1314R10 core (1 MB Flash, 256 KB RAM, 48 MHz Cortex‑M4F). Both operate in the 868/915 MHz bands. Both support AT commands out of the box. Both offer industrial temperature range and SMD packaging.
In almost every practical way, they are identical – except for one critical area: output power and power efficiency.
This short guide explains the only difference that matters.
The Core Difference: Power & Efficiency
| Parameter | N532ES‑B | N624PA |
|---|---|---|
| Max Output Power | +31 dBm (with VCC_PA ≥ 4.8 V) | +27 dBm (fixed) |
| TX Current @ +27 dBm | 370 mA | 420 mA |
| TX Current @ +30 dBm | 450 mA | Not available |
| TX Current @ +31 dBm | 520 mA | Not available |
| Power Supply | Separate VCC_PA rail (2.3–6.0 V) + VCC (2.0–3.9 V) | Single supply 2.0–3.6 V |
| XTAL | TCXO | crystal |
What this means in practice:
If your application needs +31 dBm (the highest allowed in many regions) or you want the lowest possible TX current at +27 dBm (370 mA vs. 420 mA), choose N532ES‑B.
If you are fine with +27 dBm and prefer a simpler single‑voltage power design, choose N624PA.
Everything Else – Basically the Same
| Feature | Both Modules |
|---|---|
| MCU | CC1314R10 (1MB Flash, 256KB RAM) |
| Frequency Bands | 868 MHz / 915 MHz |
| RX Current | 10–12 mA (negligible difference) |
| Sleep Current | <1 µA |
| AT Commands | Yes, pre‑flashed |
| Operating Temp | -30°C to +75°C |
| Antenna Interface | IPEX + stamp hole |
| Custom Firmware | Full TI SDK support on both |
The RF front‑ends differ (Skyworks SKY66423 vs. TI CC1190), but for most users the observable performance at +27 dBm is nearly identical. The real‑world range difference is minimal. The decision should be based on power and efficiency, not on theoretical RF specs.
Which One Should You Pick?
| Your priority | Choose |
|---|---|
| Highest possible output power (+31 dBm) | N532ES‑B |
| Lowest TX current at +27 dBm (370 mA vs. 420 mA) | N532ES‑B |
| Single‑voltage power supply (simpler BOM) | N624PA |
| Everything else | Either – they are functionally equivalent |
Final Verdict
Pick N532ES‑B when you need the extra 4 dB of link budget (+31 dBm) or you want to save 50 mA of TX current at the same +27 dBm output. The trade‑off is a slightly more complex power supply (separate VCC_PA rail).
Pick N624PA when +27 dBm is enough and you want the simplest possible power design (single 3.3 V rail).
Otherwise, they are the same module for all practical purposes.
Coral RF – Long‑range wireless made simple.
Explore N532ES‑B →
Explore N624PA →
