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LTL2R3SEK

LTL2R3SEK

  • Description：LED RED CLEAR T-1 3/4 T/H
  • Series：-
  • Mfr：Lite-On Inc.
  • Package：Bulk

SKU:a7d4bc7f59c4 Category: Brand:

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Product Detailed Parameters

  • Description：LED RED CLEAR T-1 3/4 T/H
  • Series：-
  • Mfr：Lite-On Inc.
  • Package：Bulk
  • Color：Red
  • Configuration：Standard
  • Lens Color：Colorless
  • Lens Transparency：Clear
  • Millicandela Rating：3700mcd
  • Lens Style：Round with Domed Top
  • Lens Size：5mm, T-1 3/4
  • Voltage - Forward (Vf) (Typ)：2.25V
  • Current - Test：20mA
  • Viewing Angle：30°
  • Mounting Type：Through Hole
  • Wavelength - Dominant：630nm
  • Wavelength - Peak：639nm
  • Features：-
  • Package / Case：Radial
  • Supplier Device Package：T-1 3/4
  • Size / Dimension：-
  • Height (Max)：8.70mm
  • Grade：-
  • Qualification：-

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LTL2R3SEK

How to buy
Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.
Payment Method
Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.
Delivery time
In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.
Freight calculation
Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.
Mode of Transportation
We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.
Return and Refund
Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.

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Buying Guide
Summary

Lite-On Inc. LTL2R3SEK is used in LED Indication - Discrete category where optical output and mechanical fit must be validated in the real enclosure. Key specs include Description (LED RED CLEAR T-1 3/4 T/H), Package/case (Radial), and Mounting (Through Hole).

Selection Notes
  • For LTL2R3SEK, make sure the mounting type (Through Hole) matches how the part will be installed and inspected.
  • Ensure the supply current (20mA) is acceptable for battery life and thermal limits.
  • Verify the optical wavelength (630nm) matches your sensor or visual display requirements.
  • Validate Viewing Angle (30°) under the expected test conditions in your application.
Alternates & Substitutions
  • Validate min/max ratings and operating conditions at corners so the substitution does not depend on typical-only behavior.
  • For optoelectronics, validate brightness and color in your real enclosure and ambient conditions.
  • To speed up alternate matching, provide your must-have constraints (package Radial) and any compliance/traceability needs.
  • If you already have candidate alternates, send the list and we can check drop-in risks against (package Radial).
FAQ

What Wavelength - Peak is listed for LTL2R3SEK?
639nm

How is LTL2R3SEK packaged?
Bulk

What is the Lens Size of LTL2R3SEK?
5mm, T-1 3/4

What is the Voltage - Forward (Vf) (Typ) of LTL2R3SEK?
2.25V

Application Scenarios

In many LED Indication - Discrete builds, Lite-On Inc. LTL2R3SEK is reviewed for predictable behavior, supportability, and stable qualification evidence. LED indication design balances forward voltage/current, brightness, and viewing angle so visibility remains consistent under ambient light and temperature. Designers generally verify wavelength/color, intensity, viewing angle, response behavior, and thermal limits so performance remains stable in the enclosure. For isolated links, propagation delay, CTR, and dv/dt immunity matter; for indicators, visibility under ambient light and consistent brightness are key. In medical equipment, unambiguous indication and stable optical sensing support usability and safety requirements. Across appliances and consumer products, indicator LEDs communicate modes and faults in compact housings, where thermal rise and diffuser choice affect perceived color and brightness. With the boundaries defined early, teams can validate faster and keep failure modes more predictable.

Compatibility Advice
  • Confirm the system entry points and stress models (hot-plug, surge, ESD) so protection and grounding assumptions match the real deployment before release to production.
  • On the assembled PCB, verify tolerance stack-up and assembly constraints so mechanical fit does not depend on fragile adjustments. This avoids one-off tuning in production.
Project Fit
  • Most suitable when you can bench-verify Lite-On Inc. LTL2R3SEK for LED Indication - Discrete integration on the assembled PCB, typically when you care about repeatability and serviceability in fielded products. That said, less ideal when integrating Lite-On Inc. LTL2R3SEK for LED Indication - Discrete, substitutions are likely but acceptance criteria are not defined, because repeatable production verification is not feasible.
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