1. Product Identification & Overview

️· Product Name: IRL 81 A
️· Type: Light-Emitting Diode (LED)
️· Manufacturer: OSRAM Opto Semiconductors GmbH
️· Package: Light-red colored plastic package with sidelooker and 2.54mm pin spacing.
️· Application: Suitable for manufacturing and monitoring applications requiring beam interruption (e.g., light barriers).

2. Electrical Characteristics (Absolute Maximum Ratings)

Parameter	Symbol	Value	Unit
Operating/Storage Temp.	T_op/T_stg	-40 to +100	°C
Reverse Voltage	V_R	5	V
Forward Current	I_F	100	mA
Power Dissipation	P_tot	200	mW
Thermal Resistance	R_thJA	375	K/W

3. Electrical Characteristics (Typical Values - @ 25°C)

Parameter	Symbol	Value	Unit
Peak Emission Wavelength	λpeak	880	nm
Spectral Bandwidth	Δλ	80	nm
Half Angle	ϕ	± 25	degrees
Active Chip Area	A	0.09	mm²
Switching Times (Rise/Fall)	t_r/t_f	0.6/0.5	μs
Capacitance	C_o	15	pF
Forward Voltage	V_F	1.5 (≤ 2.0)	V
Total Radiance	Φe	5	mW
Reverse Current	I_R	0.01 (≤ 1)	μA
Temp. Coefficient of Ie/Φe	TC_I	-0.5	%/K
Temp. Coefficient of Vf	TC_V	-2	mV/K
Temp. Coefficient of λ	TC_λ	0.25	nm/K

4. Optical Characteristics

️· Radiant Intensity (Ie):
- Minimum: 1.0 mW/sr
- Typical: 2.5 mW/sr
️· Directional Characteristics: The LED has a beam angle of ±25 degrees.

5. Physical & Environmental

️· Weight: Approximately 0.2g
️· Soldering: Designed for Wave Soldering (TTW) according to CECC 00802.

6. Important Notes/Disclaimers

️· The product description and specifications are subject to change without notice.
️· Components must be expressly authorized for use in life-support devices and systems.
️· Recycling of packaging materials is encouraged.
️· Refer to OSRAM's website ([www.osram-os.com](http://www.osram-os.com)) for the latest product information.