HLMP-3681

Features:

• Integral Current Limiting Resistor
• TTL Compatible
Requires no External Current Limiter with 5 Volt/12 Volt Supply
• Cost Effective
Saves Space and Resistor Cost
• Wide Viewing Angle
• Available in All Colors
Red, High Efficiency Red, Yellow, and High Performance Green in T-1 and T-1³/₄ Packages


Specifications

	Red/HER/Yellow 5 Volt Lamps	Red/HER/Yellow 12 Volt Lamps	Green 5 Volt Lamps	Green 12 Volt Lamps
DC Forward Voltage (TA = 25°C)	7.5 Volts[2]	15 Volts[3]	7.5 Volts[2]	15 Volts[3]
Reverse Voltage (IR = 100 A)	5 Volts	5 Volts	5 Volts	5 Volts
Operating Temperature Range	-40°C to 85°C	-40°C to 85°C	-20°C to 85°C	-20°C to 85°C
Storage Temperature Range	-55°C to 100°C	-55°C to 100°C	-55°C to 100°C	-55°C to 100°C
Lead Soldering Temperature	260°C for 5 seconds

Notes:
2. Derate from T_A = 50°C at 0.071 V/°C, see Figure 3.
3. Derate from T_A = 50°C at 0.086 V/°C, see Figure 4.


Description

The 5 volt and 12 volt series lamps contain an integral current limiting resistor in series with the LED. This allows the lamp to be driven from a 5 volt/12 volt source without an external current limiter. The red LEDs are made from GaAsP on a GaAs substrate. The High Efficiency Red and Yellow HLMP-3681  devices use GaAsP on a GaP substrate.

The green HLMP-3681 devices use GaP on a GaP substrate. The diffused lamps provide a wide off-axis viewing angle.