DF37NC-34DS-0.4V(53) Hirose Connector (Other) In Stock
The Hirose DF37NC-34DS-0.4V(53) is a 34-position, 0.4 mm pitch vertical SMT receptacle for board-to-board and mezzanine stacking applications. Key specs include gold-plated female contacts, a body length of approximately 9.0 mm, and a board stacking connector design without metal fitting tabs. Available in stock with worldwide shipping for high-density mobile and compact embedded system interconnects.
- Manufacturer
- Hirose
- Package
- Other
- Pin Count
- 34
- Lifecycle
- ACTIVE
- Datasheet
- DF37NC-34DS-0.4V(53) Datasheet PDF
- Category
- Connector
- Temp Range
- -35.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 34-position, 0.4 mm pitch layout delivers ultra-high-density board-to-board connectivity in space-critical designs
- Gold-plated female contacts ensure low contact resistance and reliable mating across many insertion cycles
- Vertical SMT receptacle configuration simplifies PCB layout and automated soldering in mezzanine assemblies
- Board stacking design without metal fitting tabs reduces component height for ultra-thin product enclosures
Applications
The DF37NC-34DS-0.4V(53) is designed for high-density mezzanine board stacking in smartphones, tablets, and wearable devices where PCB space is extremely limited. Its 0.4 mm pitch enables 34 signal or power connections in a footprint smaller than 10 mm, supporting high-speed data and mixed-signal routing between stacked boards. The connector is also used in compact camera modules, IoT sensor nodes, and medical wearables requiring reliable board-to-board interfaces.
Specifications
| Pbfree Code | Yes |
| Factory Lead Time | 16Weeks |
| YTEOL | 8 |
| Body Breadth | 0.091inch |
| Body Depth | 0.042inch |
| Body Length | 0.355inch |
| Body/Shell Style | RECEPTACLE |
| Connector Type | BOARD STACKING CONNECTOR |
| Contact Finish Termination | GOLD |
| Contact Gender | FEMALE |
| Contact Pattern | RECTANGULAR |
| Contact Resistance | 100mΩ |
| Contact Style | BELLOWED TYPE |
| Dielectric Withstanding Voltage | 100VAC V |
| Durability | 10Cycles |
| Insulation Resistance | 50000000Ω |
| Insulator Color | BLACK |
| Insulator Material | LIQUID CRYSTAL POLYMER |
| JESD-609 Code | e4 |
| Mating Contact Pitch | 0.016inch |
| Mating Information | MULTIPLE MATING PARTS ARE AVAILABLE |
| Mixed Contacts | NO |
| Mounting Option 1 | LOCKING |
| Mounting Style | STRAIGHT |
| Mounting Type | BOARD |
| Number Of Connectors | ONE |
| Number Of PCB Rows | 2 |
| Number of Rows Loaded | 2 |
| Option | GENERAL PURPOSE |
| PCB Contact Pattern | RECTANGULAR |
| PCB Contact Row Spacing | 2.92mm |
| Rated Current (Signal) | 0.3A |
| Reference Standard | UL |
| Terminal Pitch | 0.4mm |
| Termination Type | SURFACE MOUNT |
| Total Number of Contacts | 34 |
| UL Flammability Code | 94V-0 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.69.40.40 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many positions and what pitch does the Hirose DF37NC-34DS-0.4V(53) support for mezzanine board connections?
The DF37NC-34DS-0.4V(53) provides 34 positions at a 0.4 mm pitch, enabling a very high contact density of approximately 85 contacts per 10 mm of connector length. This makes it well suited for stacking PCBs in compact consumer devices like smartphones and wearables where signal count and space are both critical constraints.
What contact finish does DF37NC-34DS-0.4V(53) use, and how does that affect mating reliability in a portable device?
The connector uses gold-plated contacts, which provide superior corrosion resistance and consistently low contact resistance (typically below 30 mΩ) compared to tin-plated alternatives. Gold finish is especially important in portable devices subject to vibration and humidity cycling, where tin-plated contacts may develop oxide films that increase resistance over time.
For a stacked PCB camera module with a 34-signal interface, how does the 0.4 mm pitch of this connector compare to a 0.5 mm pitch alternative?
Using a 0.4 mm pitch instead of 0.5 mm pitch reduces the connector body length by approximately 20% for the same 34 positions, saving roughly 1.5 mm to 2.0 mm of PCB edge space. In a camera module with a total board width of 15 mm, this difference can be decisive when routing 34 lines including MIPI CSI-2 differential pairs and power rails.
Can the DF37NC-34DS-0.4V(53) receptacle be assembled with standard SMT reflow soldering, and what precautions apply?
Yes, the vertical SMT receptacle is designed for standard lead-free reflow soldering at peak temperatures up to 260°C, consistent with IPC/JEDEC J-STD-020 MSL ratings. Designers should follow Hirose's recommended stencil aperture and solder paste volume specifications to prevent bridging between the 0.4 mm pitch pads during reflow.
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