In the world of digital media archiving, particularly concerning Japanese DVD and Blu-ray releases, the strings of characters found in file names or metadata can often seem cryptic. One such string that has appeared in various collections and online databases is MEYD-646 DC01-58-20 Min. For archivists, collectors, and technical analysts, understanding what this sequence represents is crucial for proper cataloging, quality control, and playback.
This article provides an exhaustive breakdown of every component of the keyword MEYD-646 DC01-58-20 Min, exploring its origin, technical specifications, and the context of its source material.
Here, DC01 is a valid and common material grade – but the appended -58-20 is non-standard. MEYD-646 DC01-58-20 Min
Conclusion: DC01 is real; -58-20 is non-standard. Without a datasheet, treat as invalid.
| Symptom | Likely Cause | Fix | |---------|--------------|-----| | Motor does not spin | No power, reversed polarity, or driver disabled | Verify voltage at motor terminals with a multimeter. Check driver enable pin. | | Motor hums but does not rotate | Stalled load, excessive torque demand, or burnt brushes | Reduce load, check for mechanical obstruction. If the problem persists, replace the motor (brush wear). | | Speed is erratic / jerky | PWM frequency too low, noisy power supply, or loose wiring | Raise PWM to > 8 kHz, add a decoupling capacitor (0.1 µF) near the motor, reseat connector. | | Excessive current ( > 2 A ) | Shorted windings, driver mis‑configuration, or over‑voltage | Measure winding resistance; replace motor if resistance is near 0 Ω. Verify driver limits. | | Overheating | Prolonged stall, insufficient ventilation, or high ambient temperature | Add a small fan, lower duty cycle, or operate at a lower voltage. | In the world of digital media archiving, particularly
| Item | Detail | |------|--------| | Model | MEYD‑646 DC01‑58‑20 Min | | Type | Brushed DC motor (miniature) – “Min” denotes the mini‑size version | | Voltage | 12 V DC (typical) – can operate 6‑24 V with reduced torque | | Power Rating | 0.65 W (max) | | Nominal Speed | 5 800 rpm (at 12 V, no load) | | No‑Load Current | 55 mA | | Stall Torque | 7 mN·m (≈ 70 gf·cm) | | Dimensions | 6 mm × 46 mm (shaft × overall length) | | Mounting | Set‑screw hub, 2 mm bore, flange‑mount (M2.5) | | Bearings | Two ball bearings, sealed | | Connector | 2‑pin Molex‑style (0.5 mm pitch) | | Operating Temperature | –20 °C … +70 °C | | IP Rating | IP40 (dust‑protected, splash‑proof) | | Typical Applications | Mini‑drives, pocket‑size robots, medical devices, portable tools, hobbyist projects |
Quick tip: The “58‑20” suffix indicates a 58 mm overall length and a 20 mm shaft extension (optional accessory). The “DC01” identifies the internal winding class (standard low‑resistance, high‑efficiency). Conclusion: DC01 is real; -58-20 is non-standard
If you encounter this string in a BOM, drawing, purchase requisition, or inventory system, follow this resolution protocol: