---
product_id: 24658703
title: "3pcs Silver Metal Laser Diode Housing 12x40mm for 5.6mm To-18 Laser Diode with 200-1100nm Collimating Lens"
brand: "lilly electronics"
price: "₩25040"
currency: KRW
in_stock: true
reviews_count: 8
category: "Lilly Electronics"
url: https://www.desertcart.kr/products/24658703-3pcs-silver-metal-laser-diode-housing-12x40mm-for-5-6mm
store_origin: KR
region: South Korea
---

# Precision 12x40mm metal housing 200-1100nm collimating lens range Supports 10x20mm circuit driver mount 3pcs Silver Metal Laser Diode Housing 12x40mm for 5.6mm To-18 Laser Diode with 200-1100nm Collimating Lens

**Brand:** lilly electronics
**Price:** ₩25040
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your laser projects with precision housing that means business!

## Quick Answers

- **What is this?** 3pcs Silver Metal Laser Diode Housing 12x40mm for 5.6mm To-18 Laser Diode with 200-1100nm Collimating Lens by lilly electronics
- **How much does it cost?** ₩25040 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/24658703-3pcs-silver-metal-laser-diode-housing-12x40mm-for-5-6mm)

## Best For

- lilly electronics enthusiasts

## Why This Product

- Trusted lilly electronics brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Modular Design:** Slim 12x40mm profile with internal space for 10x20mm circuit drivers enables seamless DIY customization.
- • **Broad Spectrum Collimation:** Integrated 200-1100nm plastic lens optimizes laser focus across visible to near-infrared wavelengths.
- • **Enhanced Thermal Management:** Metal body efficiently dissipates heat, maintaining diode performance without extra greases or sinks.
- • **Engineered for Precision Fit:** Custom metal housing tailored for TO-18 5.6mm laser diodes ensures a sleek, professional assembly.
- • **Secure Spring-Loaded Contact:** Built-in spring mechanism guarantees tight diode-to-housing contact, reducing signal loss and vibration.

## Overview

This 3-piece set of silver metal laser diode housings is engineered for TO-18 5.6mm laser diodes, featuring a durable 12x40mm metal frame and a versatile 200-1100nm collimating plastic lens. Designed for professionals and DIY enthusiasts alike, it supports mounting of 10x20mm circuit drivers inside, offers superior heat dissipation, and includes a spring mechanism for secure diode contact—perfect for high-performance laser applications demanding precision and reliability.

## Description

Features: Material: Metal Color: Silver Lens: With 200-1100nm Plastic lens Inner Diameter: 10.3x40mm Outside Diameter: 12 x 40 mm (excluding the cap) Note: 1. 10x20mm circuit driver can be mounted inside 2. Diode housing for TO-18 laser diode! 3. With spring! It can help the diode contact the housing more tightly Package: 3pcs TO-18 5.6mm Laser Diode housing with Lens and spring and cap

Review: Good item - Nice little diode host. The lens pitted, but it's to be expected if there's any power being sent. Better glass collimator rounded things out. Heat transfer was good thru the body and into aluminum sink, without lithium grease. Add that for optimal heat sinking.
Review: Too small of a hole for an actual TO-18! - How frustrating! This collimator appears well designed, looks good, and has a nice lens focusing feature. However, the standard classic LTLD505T Laser diode which is a true TO-18 case with a specification of 5.6 +0 - 0.3 mm and a measured size of 5.60 mm fit CANNOT into a hole actually finished at 5.42 mm! The specifications for this collimator says it is actually for a 5.6 mm diameter diode (TO-18), but it is measured at 5.42. That's undersized by over 3%. High-chrome Steel on Brass and nothing budges! You have to epoxy it in place and hope it lines up? What a shame. All they had to do was drill it slightly larger! Press fit wouldn't be bad, but there are no signs that press-fit was intended. Who wants to crush their laser diode trying?

## Features

- Diode housing for TO-18 laser diode!
- Inner Diameter:10.3 x 40mm, Outside Diameter:12 x 40mm
- Material: Metal, Color: Silver
- Lens: With 200-1100nm Plastic lens
- 10x20mm circuit driver can be mounted inside

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B019MZAR7E |
| Assembled Height | 2 millimeters |
| Assembled Length | 8 millimeters |
| Assembled Width | 2 millimeters |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #304,991 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #76 in Diode Lasers |
| Brand | Lilly Electronics |
| Color | Silver |
| Customer Reviews | 4.0 4.0 out of 5 stars (39) |
| Date First Available | December 21, 2015 |
| Finish types | Stainless Steel |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.58 ounces |
| Item model number | Housing-1240-5*6-3pcs |
| Manufacturer | Blaser |
| Material | Metal |
| Part Number | Housing-1240-5*6-3pcs |
| Product Dimensions | 0.31 x 0.08 x 0.08 inches |
| Special Features | Empty housing for DIY |
| Style | Traditional |

## Product Details

- **Brand:** Lilly Electronics
- **Color:** Silver
- **Manufacturer:** Blaser
- **Material:** Metal
- **Style:** Traditional

## Images

![3pcs Silver Metal Laser Diode Housing 12x40mm for 5.6mm To-18 Laser Diode with 200-1100nm Collimating Lens - Image 1](https://m.media-amazon.com/images/I/51GO2Ekkg8L.jpg)
![3pcs Silver Metal Laser Diode Housing 12x40mm for 5.6mm To-18 Laser Diode with 200-1100nm Collimating Lens - Image 2](https://m.media-amazon.com/images/I/51Z3VTjQhVL.jpg)
![3pcs Silver Metal Laser Diode Housing 12x40mm for 5.6mm To-18 Laser Diode with 200-1100nm Collimating Lens - Image 3](https://m.media-amazon.com/images/I/51Z-4b3qCEL.jpg)
![3pcs Silver Metal Laser Diode Housing 12x40mm for 5.6mm To-18 Laser Diode with 200-1100nm Collimating Lens - Image 4](https://m.media-amazon.com/images/I/41gIPtiuTRL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good item
*by C***R on June 4, 2025*

Nice little diode host. The lens pitted, but it's to be expected if there's any power being sent. Better glass collimator rounded things out. Heat transfer was good thru the body and into aluminum sink, without lithium grease. Add that for optimal heat sinking.

### ⭐⭐ Too small of a hole for an actual TO-18!
*by A***H on September 23, 2023*

How frustrating! This collimator appears well designed, looks good, and has a nice lens focusing feature. However, the standard classic LTLD505T Laser diode which is a true TO-18 case with a specification of 5.6 +0 - 0.3 mm and a measured size of 5.60 mm fit CANNOT into a hole actually finished at 5.42 mm! The specifications for this collimator says it is actually for a 5.6 mm diameter diode (TO-18), but it is measured at 5.42. That's undersized by over 3%. High-chrome Steel on Brass and nothing budges! You have to epoxy it in place and hope it lines up? What a shame. All they had to do was drill it slightly larger! Press fit wouldn't be bad, but there are no signs that press-fit was intended. Who wants to crush their laser diode trying?

### ⭐⭐⭐⭐⭐ Great products!
*by M***M on October 15, 2024*

It was worth purchasing, everything according to the pictures were included (springs and parts etc). I have not pressed a diode yet, it should work just fine. I'd drill a bigger hole if it's too small. Looking forward to use dvd burner diode and press it inside!

## Frequently Bought Together

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-26*