Tamagawa Seiki 4609N3362E208

Technical Dossier

Product Details And Specifications

Tamagawa Seiki 4609N Series Technical Notes

The Evolution of 4609N Architecture

The 4609N encoder series was developed by Tamagawa Seiki Co., Ltd. (founded 1938, Iida, Japan) as part of their TS (Tamagawa Seiki) encoder product line, which evolved from resolver-based feedback systems in the 1970s into high-resolution optical incremental encoders through the 1980s and 1990s. Early 4609N variants used 5V TTL differential line driver outputs (A, /A, B, /B, Z, /Z) with resolutions ranging from 1,000 to 2,500 PPR, targeting general-purpose servo axes. Mid-generation variants introduced enhanced EMI shielding and extended temperature ratings (−10°C to +70°C operating) to meet the demands of foundry and offshore environments. The 4609N3362E208 variant specifically incorporates a 2,500 PPR resolution with a 5-pin or multi-pin connector configuration, designed for direct retrofit compatibility with legacy Tamagawa and OEM-branded encoder housings. As servo drive technology migrated toward absolute multi-turn feedback (SmartAbs, BiSS-C, EnDat 2.2), the 4609N incremental series entered a mature/end-of-life phase. Tamagawa Seiki has transitioned new designs to the TS5700N8401 and SER series absolute encoders. However, the 4609N remains in active service across hundreds of thousands of installed servo axes, making long-term spare parts availability a critical operational requirement for maintenance teams.

4609N Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly sourced models within the Tamagawa Seiki 4609N encoder series, organized by resolution and output configuration:

Incremental Encoders — Standard Resolution (1,000–2,500 PPR)

• 4609N3362E208: 2,500 PPR incremental encoder, 5V TTL differential output, standard shaft, multi-pin connector, servo motor feedback
• 4609N3360E208: 2,500 PPR incremental encoder, open collector output variant, compatible with legacy Fanuc servo amplifiers
• 4609N3361E208: 2,500 PPR incremental encoder, line driver output, extended cable length configuration
• 4609N3260E208: 2,000 PPR incremental encoder, 5V differential line driver, standard housing, general servo axis use
• 4609N3160E208: 1,000 PPR incremental encoder, TTL output, compact form factor, low-speed servo applications
• 4609N3362E200: 2,500 PPR incremental encoder, bare lead wire output, no connector, field-wired installation
• 4609N3362E201: 2,500 PPR incremental encoder, 7-pin round connector, Mitsubishi servo motor retrofit variant
• 4609N3362E202: 2,500 PPR incremental encoder, 9-pin D-sub connector configuration, Yaskawa servo compatibility

Incremental Encoders — High Resolution (5,000–10,000 PPR)

• 4609N3562E208: 5,000 PPR incremental encoder, 5V TTL differential output, high-precision CNC spindle feedback
• 4609N3662E208: 6,000 PPR incremental encoder, differential line driver, high-speed servo axis applications
• 4609N3862E208: 8,192 PPR incremental encoder, binary resolution, compatible with digital servo controllers requiring power-of-two PPR
• 4609N3962E208: 10,000 PPR incremental encoder, ultra-high resolution, precision grinding and semiconductor equipment

Specialty & OEM-Branded Variants

• 4609N3362E208-01: OEM variant with modified shaft diameter (6mm), direct replacement for specific Fanuc αi series motor encoders
• 4609N3362E208-02: Stainless shaft variant, IP65-rated housing, wash-down and food processing environments
• 4609N3362E208-03: Extended temperature variant (−20°C to +85°C), outdoor and foundry-grade servo applications
• 4609N3362E208-04: Hollow shaft variant, direct-drive motor and rotary table encoder replacement