This is a small and high performance receiving device for an IR remote control system. Metal case type.
Specifications:

1. output form: active low
2. supply voltage: 4.5V ~5.5V
3. low level output voltage: 0.2V
4. power consumption: 0.6mA
5. wavelength: 940nm
6. BPF center frequency: 38kHz
7. operating temperature: -10°C ~ +60°C
8. soldering temperature: 260°C, t< 5sec
9. signal range: max. 10m
10. case: 7.3 x 7.6 x 5.2mm ±0.3mm
11. weight: 0.68g