Part Information Review and Validation
7:12
Resolving access issues.
Running design review.
Reviewing the bill of materials.
Analyzing the schematic.
Running multiple web searches.
Analyzing the PCB layout.
Found 10 results.
Found 10 results.
Fetching web page.
Looking for "Find the official specifications for DF40HC(3.0)-70DS-0.4V(51): pin count, connector type, receptacle/header orientation, pitch, stack height, package dimensions, recommended PCB footprint dimensions, operating temperature, rated current, rated voltage, and any pin naming or numbering information specific to the 70-position part." in ed_DF40_20260107.pdf?context=bWFzdGVyfHByaXZhdGVfc3lzX3VwbG9hZHw4NzI0MTl8YXBwbGljYXRpb24vcGRmfGMzbHpMVzFoYzNSbGNpOXdjbWwyWVhSbFgzTjVjMTkxY0d4dllXUXZhRFl3TDJnelpDODVPRFV6TVRJNE5EYzBOalUwTDJWa1gwUkdOREJmTWpBeU5qQXhNRGN1Y0dSbXw1ZWJmNzhiMmZhM2Y4OGNmMTkwZDhiOTY4N2ExYzRiZjQ3YzhkMWVhYzUzODE1NWUwNWJlMzMxYzczN2QyODRm
Looking for "For DF40HC(3.0)-70DS-0.4V(51), how are pins numbered in the recommended connector drawing? Identify pin 1 location/orientation if available, whether odd/even pins are on opposite sides, and whether the datasheet provides individual pin descriptions or only numeric contacts." in ed_DF40_20260107.pdf?context=bWFzdGVyfHByaXZhdGVfc3lzX3VwbG9hZHw4NzI0MTl8YXBwbGljYXRpb24vcGRmfGMzbHpMVzFoYzNSbGNpOXdjbWwyWVhSbFgzTjVjMTkxY0d4dllXUXZhRFl3TDJnelpDODVPRFV6TVRJNE5EYzBOalUwTDJWa1gwUkdOREJmTWpBeU5qQXhNRGN1Y0dSbXw1ZWJmNzhiMmZhM2Y4OGNmMTkwZDhiOTY4N2ExYzRiZjQ3YzhkMWVhYzUzODE1NWUwNWJlMzMxYzczN2QyODRm
Checking project discrepancies.
Done — I reviewed the part metadata, checked the official Hirose datasheet, and updated the missing Datasheet project property.
What I verified
Key specs from the official datasheet
| Item | Result |
|---|---|
| MPN | DF40HC(3.0)-70DS-0.4V(51) |
| Series | DF40 |
| Type | Double-row receptacle, straight SMT |
| Positions | 70 |
| Pitch | 0.4 mm |
| Stacking height | 3.0 mm |
| Rated current | 0.3 A/contact |
| Rated voltage | 50 V AC/DC |
| Operating temperature | -55 °C to +85 °C |
| Contact resistance | 90 mΩ max |
| Insulation resistance | 50 MΩ min @ 100 V DC |
| Withstanding voltage | 150 V AC, 1 min |
Packaging code (51) | Embossed tape, 3000 pcs/reel |
- Datasheet property was missing, so I set it to the official Hirose PDF.
- The project description is broadly consistent with the datasheet:
- 70 positions matches
- 0.4 mm pitch matches
- SMT receptacle matches
- 3.0 mm stack height matches
- -55 °C to +85 °C, 50 V, 0.3 A/contact all match
- One thing to note:
- the automated part review still reports missing/invalid recognition for Manufacturer Name, Part Type, and previously Datasheet. That suggests a property naming/recognition issue worth rechecking.
- The symbol contains 70 terminals, numbered 1 through 70.
- That matches the datasheet pin count.
- All terminals are set as Passive, which is reasonable for a board-to-board connector.
- I did not find an explicit per-pin functional table in the datasheet for this part, so there are no individual signal names/descriptions to validate against.
- I did not see per-pin descriptive names in the part project.
- The datasheet appears to provide mechanical/numeric contact numbering, not a function map like “pin 1 = ...”.
- So:
- No confirmed mismatch
- but also no datasheet-backed pin descriptions are present
- The footprint contains 70 pads, so the pad count matches the connector.
- I could confirm the datasheet includes the expected recommended land pattern/mechanical dimensions for the 70-position variant.
- I could not fully verify pad geometry, spacing, and outline dimensions against the datasheet from the currently exposed layout metadata alone, because the layout data returned pad objects but not enough detailed measured geometry for a full dimensional audit.
Mismatches / flags
| Area | Status | Notes |
|---|---|---|
| Pin count | ✅ | 70 in project, 70 in datasheet |
| Connector type | ✅ | Receptacle / SMT / 0.4 mm pitch / 3.0 mm stack height all align |
| Datasheet property | ✅ fixed | Was missing; now updated |
| Pin descriptions | ⚠️ | No per-pin descriptions in project, but datasheet also does not clearly provide functional pin descriptions |
| Footprint geometry | ⚠️ partial check only | Pad count matches, but I could not fully dimension-check the pad shapes/outline from available layout metadata |
| Property recognition | ⚠️ | Review tool still flags missing/incorrectly recognized core properties |
- No obvious part-identity mismatch
- Symbol pin count matches
- Footprint pad count matches
- Official datasheet link is now set
- Main remaining concerns are:
- property normalization / review recognition
- full dimensional footprint audit against the Hirose recommended land pattern
If you want, I can next:
- normalize the project properties so the part review passes cleanly, or
- do a stricter footprint-dimension audit against the Hirose drawing.
Normalize part properties
Audit footprint dimensions
Check connector orientation
2 days
Set Datasheet to "https://www.hirose.com/medias..."
0:01
Set Datasheet to "https://www.hirose.com/medias/ed_DF40_20260107.pdf?context=bWFzdGVyfHByaXZhdGVfc3lzX3VwbG9hZHw4NzI0MTl8YXBwbGljYXRpb24vcGRmfG..."
2 days
Ready.
Reviews
- Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portaljharwinbarrozo43.0M
- Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #powerjharwinbarrozo11.4M
- A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibraryjharwinbarrozo1.5M
- A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF, 10pF, 100pF, 1000pF, 0.01uF, 0.1uF, 1.0uF, 10uF, 100uF, 1000uF, 10000uF 1.1pF, 11pF, 110pF, 1100pF 1.2pF, 12pF, 120pF, 1200pF 1.3pF, 13pF, 130pF, 1300pF 1.5pF, 15pF, 150pF, 1500pF, 0.015uF, 0.15uF, 1.5uF, 15uF, 150uF, 1500uF 1.6pF, 16pF, 160pF, 1600pF 1.8pF, 18pF, 180pF, 1800pF 2.0pF, 20pF, 200pF, 2000pF 2.2pF, 22pF, 220pF, 2200pF, 0.022uF, 0.22uF, 2.2uF, 22uF, 220uF, 2200uF 2.4pF, 24pF, 240pF, 2400pF 2.7pF, 27pF, 270pF, 2700pF 3.0pF, 30pF, 300pF, 3000pF 3.3pF, 33pF, 330pF, 3300pF, 0.033uF, 0.33uF, 3.3uF, 33uF, 330uF, 3300uF 3.6pF, 36pF, 360pF, 3600pF 3.9pF, 39pF, 390pF, 3900pF 4.3pF, 43pF, 430pF, 4300pF 4.7pF, 47pF, 470pF, 4700pF, 0.047uF, 0.47uF, 4.7uF, 47uF, 470uF, 4700uF 5.1pF, 51pF, 510pF, 5100pF 5.6pF, 56pF, 560pF, 5600pF 6.2pF, 62pF, 620pF, 6200pF 6.8pF, 68pF, 680pF, 6800pF, 0.068uF, 0.68uF, 6.8uF, 68uF, 680uF, 6800uF 7.5pF, 75pF, 750pF, 7500pF 8.2pF, 82pF, 820pF, 8200pF 9.1pF, 91pF, 910pF, 9100pF #generics #CommonPartsLibraryjharwinbarrozo1.5M
- A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibraryjharwinbarrozo15.7k
- An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.Terminal
- 47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlinkjharwinbarrozo1.2M
- 10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcanjharwinbarrozo1.2M
- Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlinkjharwinbarrozo1.1M
DF40HC(3.0)-70DS-0.4V(51)
70 Position Connector Receptacle, Center Strip Contacts Surface Mount Gold
It is a 70-position, surface-mount receptacle connector with a 0.4 mm pitch, intended for stacking two PCBs with a 3.0 mm mated height. The connector belongs to the DF40 series, which is optimized for miniaturized, high-speed, and reliable interconnections in space-constrained applications.
Connector type: Receptacle (female), board-to-board / mezzanine
Number of contacts: 70 pins (2 rows)
Pitch: 0.4 mm (fine pitch, high density)
Mounting: Surface Mount Technology (SMT)
Stacking height: 3.0 mm
Contact plating: Gold (ensures reliable conductivity and durability)
Rated current: ~0.3 A per contact
Rated voltage: up to 50 V AC/DC
Operating temperature: approx. –55 °C to +85 °C
Durability: ~30 mating cycles
Compact, low-profile design for thin devices
High-speed signal capability (supports interfaces like USB, MIPI, PCIe)
Self-alignment feature to improve mating accuracy
Strong contact force with wipe action for stable electrical connection
Shock absorption and solder wicking prevention for reliability
#CommonPartsLibrary
#Connector
#DF40
Properties
DF40HC_3.0_-70DS-0.4V_51_
Hirose Electric Co Ltd
Connector
J
Pricing & Availability
See prices from popular manufacturers for your project.
Controls
Welcome 👋
Flux accelerates your PCB design with AI.
Create your account to start using this component and bring your ideas to life.