Whiscut (Suspension Wire)
Whiscut (Suspension Wire)
Company Contact Information
Osaka Branch: 6-19, Nakano-cho 2-chome, Miyakojima-ku, Osaka, 534-0027 Japan
Tel: (06) 6352-3541 | Fax: (06) 6354-0828
Nagoya Branch: 172, Takayashiro 2-chome, Meitou-ku, Nagoya, 465-0095 Japan
Tel: (052) 771-1161 | Fax: (052) 776-0643
Head Office: 6-1-11 Shinbashi, Minato-ku, Tokyo 105-0004 Japan
Tel: 03-5860-2129 | Fax: 03-5860-2137
http://www.totoku.co.jp/
General Notice
The specifications, standards, and designs described in this catalog are subject to change without prior notice to improve products.
Environmental Certification
The company is ISO 14001 certified for environmental management since December 1999 (Certification No. JQA-EM0674).
Product Overview: Whiscut Suspension Wire
Whiscut is a suspension wire designed primarily for suspending the objective lens in optical pickups such as CD-ROM drives. It features excellent solderability and straightness, making it suitable for precision optical applications.
Key Features
- Manufactured using a proprietary method to enhance straightness.
- Surface coated with solder to improve solderability.
- Available in long reels or cut wire pieces.
- Optional insulating coating available.
Applications
- Suspension wire for retaining objective lenses in optical pickups.
Product Construction
The wire consists of a core made from either phosphor bronze (C5212W) or beryllium copper (C1720W), coated with a solder layer.
Specifications and Manufacturing Range
| Type | Material | Minimum Length (m) | Max Thickness (mm) | Max Width (mm) | Applicable Round Wire Diameter (mm) |
|---|---|---|---|---|---|
| Solder-coated phosphor bronze straight wire | Phosphor bronze (C5212W) | 1,000 | 2 | 7 | 0.1–1.0 |
| Solder-coated beryllium copper straight wire | Beryllium copper (C1720W) | 1,000 | 3 | 7 | 0.1–1.0 |
| Phosphor bronze flat straight wire | Phosphor bronze (C5212W) | 1,000 | 2 | 5 | 0.1–1.0 |
| Beryllium copper flat straight wire | Beryllium copper (C1720W) | 1,000 | 3 | 5 | 0.1–1.0 |
Maximum wire length can be up to 5,000 meters for some types, and up to 10,000 meters for others depending on coating and wire type.
Physical and Mechanical Characteristics
| Property | Range / Value |
|---|---|
| Coating Thickness | 0.050–0.200 μm depending on type |
| Solder Composition | Sn 60% with remainder Pb |
| Radius of Curvature | 10–40 mm (±0.1 mm) |
| Tensile Strength | Approximately 830–980 N/mm² |
| Elongation | 5% max |
| Young's Modulus | Approximately 98–130 GPa (calculated from wire sag) |
| Specific Gravity | Not specified explicitly |
Product Variants and Ordering Information
- Available as long reels or cut wire pieces.
- Wire diameters and lengths can be customized within specified ranges.
- Uncoated straight round wire variants are also available.
Important Notes
- All specifications must be met to ensure product quality.
- Young's modulus values are derived from sag measurements due to self-weight.
- Product improvements may lead to specification changes without notice.
Catalog excerpts
Nagoya lnnd| i7lTafcay«hiro2<h«r*. MMou-ku, Nigoya4bVOD95japjnO Q □ The specific attorn standards and/or designs shewn in this catalogue are subject to change without notice to improve products.
Open the catalog to page 1
Whiscut is suspension wire that has excellent solderability and straightness. It is widely used for suspending the objective lens of optical pickups, and other applications.
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