Part Specification Review

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Here’s a complete review and cross-check of your TF12S-4S-0.5SH(800) part project.
  1. Available part information found in the project
  • Manufacturer: Hirose
  • MPN: TF12S-4S-0.5SH(800)
  • Description: FFC & FPC Connector (receptacle), 4 positions, 0.5 mm pitch, SMT right angle, bottom contact
  • Designator Prefix: J
  • Datasheet URL (already set): Datasheet
  • Schematic symbol pins present: 1, 2, 3, 4, MP1, MP2
  • Footprint pads present: 1, 2, 3, 4, MP1, MP2
  1. Datasheet URL check
  • A datasheet URL is already present, so no change was made.
  1. Extracted specifications and metadata Primary sources:
TF12S-4S-0.5SH(800) — Extracted Specifications | Category | Parameter | Value | Source | | Mechanical | Mounting pitch | 0.5 mm | Product page | | Mechanical | Connector length | 4.2 mm | Product page | | Mechanical | Connector height | 1.0 mm | Product page | | Mechanical | Connector width (depth) | 3.9 mm | Product page | | Contacts | Positions | 4 | Product page | | Contacts | Rows (cable/board) | 1 | Product page | | Contacts | Contact pitch | 0.5 mm | Product page | | Contacts | Contact orientation | Bottom | Product page | | Insertion | FPC/FFC insertion direction | Horizontal | Product page | | Actuator | Method | Back flip (Front Axis type) | Product page | | Cable | Applicable FPC thickness | 0.2 mm | Product page | | Electrical | Rated voltage (AC) | 50 V AC | Product page | | Electrical | Rated voltage (DC) | 50 V DC | Product page | | Electrical | Rated current | 0.5 A | Product page | | Electrical | Contact resistance | 100 mΩ Max | Product page | | Environmental | Operating temp (min) | -55 C | Product page | | Environmental | Operating temp (max) | 85 C | Product page | | Materials | Contact surface finish | Gold | Product page | | Materials | Gold plating thickness | 0.05 µm | Product page | | Durability | Mating cycles | 20 | Product page | | Compliance | RoHS | Compliant | Product page | | Packaging | Type | Reel | Product page | | Packaging | Qty per reel | 5000 pcs | Product page | | Packaging | Mass | 0.021 g | Product page | | Packaging | Qty per box | 25000 pcs | Product page | | Drawing | 2D drawing | Dimensions, land pattern, pin-1 mark | 2D Drawing (English) | | Notes | Absolute Maximum Ratings | Not specified for this connector class; use ratings above | Product page |
Pin descriptions
  • Functional pins: 4 signal contacts (positions 1–4) at 0.5 mm pitch; bottom contact; horizontal insertion; ZIF back-flip actuator.
  • Mechanical pads: 2 metal hold-downs/tabs (commonly denoted MP1, MP2).
  • Pin 1 orientation: Refer to the 2D Drawing (English) for the exact pin-1 marker and orientation. The product page does not display the mark inline.
  1. Cross-check: schematic symbol and footprint vs. datasheet What matches
  • Pin count: Symbol shows four contacts 1, 2, 3, 4 which matches a 4-position receptacle.
  • Mechanical pads: Symbol includes MP1 and MP2, consistent with typical metal hold-down tabs for this series.
  • Designator prefix: Set to J, appropriate for connectors.
Items that require verification (potential risks)
  • Land pattern geometry: The footprint pad sizes and spacing could not be auto-extracted from the 2D drawing. You should verify pad dimensions, solder mask/paste apertures, and courtyard against “2D Drawing – English” (D166077_en) to ensure manufacturability.
  • Pitch confirmation on PCB: The layout API did not expose pad coordinates, so the 0.5 mm center-to-center pitch between contacts 1–4 could not be numerically verified here.
  • Pin-1 mark and orientation: Confirm the Pin 1 location on the footprint silkscreen/pin numbering matches the drawing. Incorrect pin-1 orientation is a common cause of assembly issues.
  • Keep-out and actuator clearance: Ensure the footprint provides adequate keep-out/clearance for the back-flip actuator mechanism per the drawing so the FPC can insert/remove freely.
  • Board edge and component keep-outs: If the design plans to place this at a board edge for cable access, confirm the mechanical outline and insertion path align with the recommended dimensions in the 2D drawing.
If you want, I can verify the pad geometry and pin-1 location against the 2D drawing by measuring your footprint directly and list any specific mismatches to fix.
Check pad pitch precisely
Verify footprint vs 2D drawing
Confirm pin-1 marking
Add official Hirose link
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TF12S-4S-0.5SH(800)

TF12S-4S-0.5SH(800) thumbnail
4 Position FPC Connector Contacts, Bottom 0.020" (0.50mm) Surface Mount, Right Angle #CommonPartsLibrary #Connector #FFC #FPC #TF12

Properties

TF12S-4S-0.5SH(800)

Hirose

Connector

g.componentsearchengine.com/Datasheets/1/TF12S-4S-0.5SH(800).pdf

J

creativecommons.org/licenses/by/4.0/

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