QTH-030-04-F-D-A SAMTEC Connector (Other) In Stock
SAMTEC QTH-030-04-F-D-A is a 60-position 4-row board stacking receptacle connector in the QTH series with 0.5 mm pitch, featuring polarized positioning pin and ELP technology for precise board-to-board stacking. It measures 0.789 inch × 0.235 inch and offers RoHS-compliant lead-free construction. Available from stock worldwide for high-density backplane and mezzanine stacking applications.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 60
- Lifecycle
- ACTIVE
- Datasheet
- QTH-030-04-F-D-A Datasheet PDF
- Category
- Connector
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4-row stacking receptacle with polarized positioning pin and ELP technology ensuring correct mating orientation and precise board-to-board alignment
- 0.5 mm contact pitch enabling 60 positions within a 0.789 inch × 0.235 inch body for ultra-high-density board stacking interfaces
- RoHS-compliant lead-free construction meeting global environmental regulations with short 2-week lead time for production flexibility
- Board stacking connector design supporting rigid board-to-board interconnection in space-constrained mezzanine, module, and SOM applications
Applications
The QTH-030-04-F-D-A is used in high-density board stacking designs for computing modules, FPGAs, and SOM carrier boards where dozens of signals must cross between two parallel PCBs within a minimal footprint. The polarized positioning pin prevents mis-mating during assembly, critical in automated PCB stacking for server blades, industrial controllers, and communication equipment. Its compact 4-row layout allows high signal density on small-form-factor modules while maintaining a reliable mated connection in vibration-prone environments.
Specifications
| Pbfree Code | Yes |
| Factory Lead Time | 2 Weeks, 6 Days |
| YTEOL | 8.68 |
| Additional Feature | ELP, POLARIZED |
| Board Mounting Option | POSITIONING PIN |
| Body Breadth | 0.235inch |
| Body Depth | 0.6inch |
| Body Length | 0.789inch |
| Body/Shell Style | RECEPTACLE |
| Connector Type | BOARD STACKING CONNECTOR |
| Contact Finish Mating | GOLD FLASH OVER NICKEL (50) |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | MALE |
| Contact Material | PHOSPHOR BRONZE |
| Contact Pattern | RECTANGULAR |
| Contact Resistance | 22mΩ |
| Contact Style | CENTRONIC |
| DIN Conformance | NO |
| Dielectric Withstanding Voltage | 375VAC V |
| Durability | 100Cycles |
| Filter Feature | NO |
| IEC Conformance | NO |
| Insulation Resistance | 5000000000Ω |
| Insulator Color | BLACK |
| Insulator Material | LIQUID CRYSTAL POLYMER |
| JESD-609 Code | e3 |
| MIL Conformance | NO |
| Mating Contact Pitch | 0.02inch |
| Mating Information | MULTIPLE MATING PARTS 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 | 6.1722mm |
| Plating Thickness | 3u inch |
| Polarization Key | POLARIZED HOUSING |
| Rated Current (Signal) | 1A |
| Reference Standard | UL, CSA |
| Terminal Pitch | 0.5mm |
| Termination Type | SURFACE MOUNT |
| Total Number of Contacts | 60 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.69.40.40 |
| Country of Origin | Costa Rica, Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the polarized positioning pin on the QTH-030-04-F-D-A prevent assembly errors in high-volume PCB stacking?
The polarized positioning pin on the QTH-030-04-F-D-A physically prevents the connector from being inserted in an incorrect orientation. In automated board assembly with pick-and-place robots handling hundreds of units per hour, this mechanical keying eliminates the risk of reversed connector mating that would short 60 signal pins to wrong nets, reducing rework cost on high-density 4-layer to 8-layer PCBs significantly.
How many positions does the QTH-030-04-F-D-A carry and what physical dimensions does the housing occupy?
The QTH-030-04-F-D-A is a 60-position 4-row connector measuring 0.789 inch (20 mm) in length and 0.235 inch (6 mm) in breadth, with a depth of 0.6 inch (15.2 mm). This body accommodates 60 contacts at 0.5 mm pitch across 4 rows, delivering a signal density of 3 contacts per millimeter of PCB width — approximately 3× the density of a 1.27 mm pitch dual-row connector.
In what types of module and SOM designs does the QTH-030-04-F-D-A board stacking connector provide the most advantage?
SOM (System on Module) carrier boards, FPGA mezzanine cards, and industrial computing blades benefit most from the QTH-030-04-F-D-A. These designs require 60 or more differential pairs, power rails, and control signals to cross between a small module (typically 40 mm × 70 mm) and a larger carrier board. The 4-row 0.5 mm pitch format fits this interface in a fraction of the space needed by 2-row 1.27 mm pitch alternatives.
What is the typical lead time for the QTH-030-04-F-D-A and how does that compare to similar high-density stacking connectors?
The QTH-030-04-F-D-A has a factory lead time of approximately 2 weeks and 6 days from SAMTEC, which is notably shorter than many precision high-density stacking connectors that carry 8 to 16 week lead times from competing manufacturers. This rapid availability supports just-in-time production scheduling for prototype runs of 50 to 500 units and helps reduce inventory carrying costs for contract electronics manufacturers.
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