January 13, 2026 – Excelitas Expands DigiPyro Family with Ultra-Low Power Option
Excelitas Technologies has introduced the PYD 2597 Ultra-Low Power DigiPyro sensor, a new passive infrared (PIR) sensor designed to significantly extend battery life in remote and battery-operated motion detection applications [citation:3].
The sensor operates from supply voltages as low as 1.4V with current consumption of just 2µA at 1.8V, making it one of the lowest-power digital PIR sensors available on the market. The device is fully integrated with two pyroelectric elements and manufactured using fully RoHS-compliant materials [citation:3].
Key Features:
- Supply Voltage Range: 1.4V to 3.6V
- Current Consumption: 2µA at 1.8V (typical)
- Integrated Motion Detection Unit (MDU) with interrupt functionality
- One-Wire Digital Interface for simplified system integration
- Typical responsivity: 3.2 kV/W
- Field of View: 130° in TO-5 package
- Excellent immunity to electromagnetic interference
Featuring Excelitas’ signature wake-up mode, the PYD 2597 enables intelligent motion detection while minimizing system power draw. Its integrated MDU with interrupt functionality allows systems to remain in low-power standby until motion is detected—helping designers extend battery life in smart home, security and energy-saving applications [citation:3].
“The PYD 2597 was designed to address one of the biggest challenges in PIR-based motion detection—minimizing power consumption in always-on applications,” said Hermann Karagoezoglu, Product Manager, IR Sensing at Excelitas [citation:3].
The sensor will be launched at SPIE Photonics West 2026 (Booth #637), with volume production scheduled for Q2 2026 [citation:3].