Certification | Testing
Factory Certified
Refund guarantee
24h refund guarantee
Secure Payment
PayPal Verified
KOYO Compact Universal Incremental Rotary Encoder TRD-J300-S
Registered Members Enjoy Exclusive Discounts
Payment Methods
Need a Same-Day Quote?
Need help confirming model compatibility?
100% Original
Genuine OEM Parts
Fast Delivery
Shipped via FedEx / DHL / UPS
12-Month Warranty
Worry-Free Coverage
Secure Packaging
Safe & Reliable
5,000+ Global Suppliers
Trusted by Professionals
Professional Model-Matching System
Send us your model numbers or nameplate details.
We will match your request with our 5,000+ verified suppliers and issue a quotation.
Popular Compatible Models
Cross-Reference Brands
Output Voltage("H"):[(Supply Voltage) -2.5 V] or more
Output Voltage("L"):0.4 V or lower
Output Current(Sink "L"):Up to 30 mA
Output Current(Source "H"):Up to 10 mA
Why Global Buyers Choose O&Kmarts
- Access to a wide range of SKUs across multiple brands and series
- One RFQ connects you to 5,000+ global supplier quotes
- Better availability for urgent and hard-to-find parts
- Faster global delivery via FedEx / DHL / UPS
- Easier access to rare and high-value models
- Flexible sourcing for individual parts or complete solutions
- Lower MOQs and more adaptable buying options
- Multi-brand procurement in one order
- OEM replacement and alternative model solutions available
- Fewer intermediaries, ensuring more competitive pricing
Why Global Buyers Choose O&Kmarts
- Limited to fast-moving SKUs only
- Limited local market availability
- Inventory frequently fails to meet urgent demand
- Long replenishment cycles, often taking weeks
- Rarely stock high-value compressors (e.g. Copeland YHV119)
- Frequently require bundled purchases
- Rigid and difficult MOQ negotiations
- Limited brand selection
- Minimal or no customization capability
- Higher local distribution and markup costs
Top Questions from OKmarts Buyers
Q: Can OKmarts provide specialized industrial packaging for sea freight or long-term tropical storage?
A: Yes. For international shipping or extended warehouse storage in high-humidity regions, we offer upgraded industrial packaging options. This includes vacuum-sealed anti-static (ESD) barriers, desiccant packs, heavy-duty wooden crates, and shock-absorbent padding tailored to withstand harsh maritime transit conditions.
Q: Does the OKmarts platform support Bill of Materials (BOM) uploading for rapid mass quoting?
A: Yes. Procurement teams do not need to search for individual parts manually. You can upload an Excel/CSV file containing your complete Bill of Materials (BOM) with part numbers, quantities, and brands. Our automated processing engine, backed by data engineers, will generate a comprehensive consolidated quote within 24 hours.
Q: What is your policy if an industrial part arrives physically damaged due to improper courier handling?
A: Buyers must inspect the outer packaging and internal items immediately upon delivery. If physical damage is discovered, document the condition with photos/videos and submit a claim to OKmarts within 48 hours of receipt so we can file an immediate report with the carrier and fast-track a replacement shipment.
High Efficiency
Stable Performance
Long Service Life
Related Products
Q&A
Q: Do you offer live chat support for immediate assistance?
A: Yes, we provide live chat support for immediate assistance. You can access the live chat feature on our website, and our customer support team will be available to help you with any questions or concerns in real time.
Q: How can I check the manufacturing or origin of a product?
A: We strive to provide accurate product information, including the place of manufacture or origin. In most cases, you can find relevant information on the product details page or ask our customer service, and refer to any explanations on the product label or description.
Q: How to become an agent for your products?
A: If you are interested in becoming an authorized agent for our products, please contact our business development team. They will provide you with the necessary information and guide you through the process of becoming a brand-authorized agent.
Customer reviews
Apr 15, 2026
Linda MyrenThanks for the insightful feedback!Helpful?(2)(0)Jan 12, 2026
Ron BowerThank you for your efforts in uncovering everything!Helpful?(7)(0)