DF40C-70DP-0.4V(51)

DF40C-70DP-0.4V(51) is a vendor-specific part-number, not a universal standard. It usually denotes a compact servo motor with an integrated gearbox, but the exact meaning of each segment varies by manufacturer.
Typical interpretation (brand-dependent):
- DF40C: base motor family (compact brushless DC servo)
- 70DP: gearbox option (DP-series, often a specific gearhead or reduction)
- 0.4V: variant, such as encoder/voltage rating or a specific option
- (51): revision or option code
To give a precise introduction (torque, speed, encoder, voltage, mounting, connector), please provide the manufacturer or a datasheet/link. If you share that, I can summarize exact specs and features.

DF40C-70DP-0.4V(51) is a Hirose 0.4 mm pitch, 70‑pin dual‑row FFC/FPC connector. There isn’t a single universal cross; equivalents depend on latch style and FPC thickness. Other brands offer 0.4 mm, 70‑pin dual‑row parts (cross‑references available from DigiKey/Mouser). For an exact substitute, provide your mating FPC thickness and latch requirements, or ask a distributor for a formal cross reference.

DF40C-70DP-0.4V(51) is a fine-pitch FFC/FPC connector from the Hirose DF40C series. Key features:
- 0.4 mm pitch (fine-pitch)
- 70 circuit positions (70DP)
- Vertical mating orientation (V variant)
- Surface-mount (SMT) design for PCB mounting
- Compatible with standard FFC thickness (typical range 0.04–0.08 mm)
- RoHS compliant
- High-density, low-profile solution suitable for compact displays and devices
Note: exact mechanicals (latch/lock type, mating height, insert cycles) can vary by sub-variant; check the datasheet for precise specs.

Pin count: 70 pins (dual‑row, 35 per row).
Function: A Hirose DF40C series 0.4 mm pitch FPC/FFC connector used for board‑to‑FPC connection (dual‑row receptacle for a flat flexible cable).

Manufacturer: Hirose Electric Co., Ltd.
What kind of company: A Japanese electronics components company that designs and manufactures connectors and interconnect solutions (e.g., FPC/FFC connectors, cable/board interconnects) for various industries.

It’s a Hirose DF40C series FPC/FFC connector, surface-mount (SMD). 70-position, 0.4 mm pitch, dual-row.