LED application scenarios are everywhere around us — from the tiny power indicator on your charger to large outdoor display panels. In the world of led through hole components, the classic square-lamp package remains one of the most trusted choices for designers. In this article, we highlight one specific model from the catalog of Dongguan Lanjin Optoelectronics Co., Ltd.: the 2X5X7mm square green light LED (dominant wavelength 520–535 nm), and walk through its most valuable application scenarios.
The 2X5X7mm rectangular package offers a bright, uniform emitting area that is easy to mount on PCB and compatible with wave soldering. Driven at only 20 mA with a forward voltage of 2.8–3.4 V, this led through hole diode delivers a typical luminous intensity of 2,500 mcd at 520–535 nm — a pure green light that the human eye perceives with maximum sensitivity, making it ideal for status indication and signage.
Produced by Dongguan Lanjin Optoelectronics Co., Ltd. (est. 2005, ISO9001:2015), this green light LED uses well-known San'an/Epistar chips, 99.99% gold wire bonding and high-reliability epoxy encapsulation. Its long lifespan of 50,000–60,000 hours and low DC operation make it more energy efficient than incandescent and most halogen lamps.
| Parameter | Specification |
|---|---|
| Package | 2X5X7mm square through-hole lamp |
| Emitted Color | Green light |
| Wavelength | 520–535 nm (typ. 530 nm) |
| Luminous Intensity | Typ. 2,500 mcd @ 20mA |
| Forward Current / Voltage | 20 mA / 2.8–3.4 V |
| Viewing Angle | 80–160° |
| Lifespan | 50,000–60,000 hours |
| Chip / Certification | San'an & Epistar chips; RoHS & REACH |
| Packing | 1,000 pcs/bag (anti-static) |
With a 2,500 m² purified anti-static workshop, 2 national invention patents and 12 utility-model patents, Dongguan Lanjin Optoelectronics Co., Ltd. has served global customers since 2005 across SMD LEDs, through-hole LEDs, LED digital displays and LED PCBA assembly. Every green light LED and led through hole diode is manufactured under strict ISO9001:2015 quality control, with OEM/ODM customization and fast sample delivery within 3 working days.
Summary: Whether you need a bright indicator lamp for a smart appliance, a reliable signal source for automotive electronics, or a uniform emitter for display panels, the 2X5X7mm green through hole LED from Lanjin offers the perfect balance of brightness, reliability and cost. Contact Dongguan Lanjin Optoelectronics Co., Ltd. for free samples and datasheets today.
コンタクトパーソン: Miss. Ava Huang
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