TTC Mouse Scroll Wheel Encoder 5–13mm Green Core | 2-Pack

Restore Smooth, Precise Scrolling with TTC Green Core Mouse Encoders

Is your mouse scroll wheel jumping erratically or skipping pages? This 2-pack of TTC Mouse Roller Wheel Encoders is the perfect fix. Featuring a high-precision green core mechanism, these drop-in replacement encoders deliver smooth, accurate scroll detection — ideal for both office productivity and gaming setups.

Available in multiple core heights (5mm, 5.5mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, and 13mm), these encoders are compatible with a wide range of mouse models. Simply match the height to your existing encoder and enjoy like-new scrolling performance.

Key Features

• Highly Accurate Green Core: Moderate actuation strength with precise, tactile positioning — delivers a comfortable and responsive feel for both gaming and everyday use.
• Wide Size Compatibility: Available in 9 core heights (5mm to 13mm) to fit most standard mouse scroll wheel encoder housings.
• 5 Million Cycle Lifespan: Built to Japanese quality standards, far outlasting common black-core and standard green-core encoders on the market.
• Metal Construction: Durable metal build ensures long-term reliability and consistent scroll feedback over millions of clicks.
• Easy Replacement: Designed as a direct swap — as long as the encoder height matches, installation is straightforward for DIY mouse repair.
• Eliminates Scroll Jumping: Solves the common problem of web pages jumping up and down during scrolling due to a worn or faulty encoder.
• 2 Pieces Included: Get two encoders per pack — great for replacing both at once or keeping a spare.

Specifications

• Brand: TTC
• Model: TTC Mouse Roller Wheel Encoder (Green Core)
• Material: Metal (encoder), ABS (housing)
• Available Heights: 5mm, 5.5mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm
• Rated Lifespan: 5,000,000 cycles
• Package Contents: 2 × Mouse Roller Wheel Encoder
• Country of Origin: Made in Mainland China

Who Is This For?

Perfect for tech enthusiasts, PC builders, gamers, and anyone comfortable with basic soldering or electronics repair. If your mouse scroll wheel has started acting up, replacing the encoder is one of the most cost-effective repairs you can make — and these TTC green-core encoders are among the most reliable replacements available.

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Learn More About Electronics Repair & Component Standards

For information on consumer electronics safety and component reliability standards, visit the U.S. Consumer Product Safety Commission (CPSC).

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Frequently Asked Questions

Q: What sizes of mouse roller wheel encoders are included in this listing?

A: This listing covers TTC Green Core Mouse Roller Wheel Encoders in the following heights: 5mm, 5.5mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, and 13mm. You select the size that matches your mouse's existing encoder height. Each order includes 2 pieces of your chosen size.

Q: How do I know which encoder size fits my mouse?

A: Open your mouse and measure the height of the existing scroll wheel encoder (the small component beneath the scroll wheel). Match that measurement to the appropriate size option in this listing. As long as the height matches, the TTC green core encoder will be a compatible replacement.

Q: Why is the TTC green core encoder better than a standard black core encoder?

A: The TTC green core encoder offers a rated lifespan of 5 million cycles, which significantly exceeds standard black-core and common green-core encoders. It also delivers higher precision and more accurate scroll positioning, making it a popular upgrade for both gaming mice and office mice.

Q: Do I need soldering skills to replace a mouse scroll wheel encoder?

A: Yes, replacing a scroll wheel encoder typically requires basic soldering. You'll need to desolder the old encoder from the mouse's PCB and solder the new TTC encoder in its place. If you're new to soldering, we recommend practicing on spare components before attempting the repair.

Q: Will this fix the problem of my scroll wheel jumping up and down on web pages?

A: In most cases, yes. Erratic scrolling behavior — where pages jump up or down unexpectedly — is often caused by a worn or faulty scroll wheel encoder. Replacing it with a new, high-precision TTC green core encoder typically resolves this issue.