QTT-144-04-L-T SAMTEC Connector (Other) In Stock
SAMTEC QTT-144-04-L-T is a 132-position 2.00 mm pitch power plane terminal strip with male phosphor bronze contacts finished in gold over nickel for board stacking applications. Measures 3.486" long with through-hole termination, delivering robust current capacity for power distribution in stacked board designs. Available worldwide with fast delivery for industrial and embedded power plane requirements.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 132
- Lifecycle
- ACTIVE
- Datasheet
- QTT-144-04-L-T Datasheet PDF
- Category
- Connector
- Price
- From $18.8000(MOQ 50)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of QTT-144-04-L-T?
- 132 positions at 2.00 mm pitch in a 3.486-inch long through-hole power plane terminal strip
- Male phosphor bronze contacts with 10-µin gold over nickel mating finish for low-resistance, corrosion-resistant connections
- Tin over nickel barrier termination finish for reliable soldering to power plane through-holes
- Board stacking connector design enables direct power and signal distribution between stacked PCBs
- Robust 0.512-inch body depth accommodates high-current power plane configurations in demanding environments
What is QTT-144-04-L-T used for?
The QTT-144-04-L-T is designed for power plane distribution and board stacking in industrial computing systems, server backplanes, and high-current embedded power modules requiring 132 contacts at 2.00 mm pitch. Its gold-over-nickel mating contacts and robust phosphor bronze construction ensure stable low-resistance connections across thousands of mating cycles in systems where reliable power delivery between stacked PCBs is critical.
What are the specifications of QTT-144-04-L-T?
| Pbfree Code | Yes |
| YTEOL | 8 |
| Body Breadth | 0.236inch |
| Body Depth | 0.512inch |
| Body Length | 3.486inch |
| Connector Type | BOARD STACKING CONNECTOR |
| Contact Finish Mating | GOLD (10) OVER NICKEL |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | MALE |
| Contact Material | PHOSPHOR BRONZE |
| Contact Style | SQ PIN-SKT |
| DIN Conformance | NO |
| Filter Feature | NO |
| IEC Conformance | NO |
| Insulator Color | BLACK |
| Insulator Material | LIQUID CRYSTAL POLYMER |
| JESD-609 Code | e3 |
| MIL Conformance | NO |
| Mating Information | MULTIPLE MATING PARTS AVAILABLE |
| Mixed Contacts | NO |
| Mounting Style | STRAIGHT |
| Mounting Type | BOARD |
| Number Of Connectors | ONE |
| Number of Rows Loaded | 3 |
| Option | GENERAL PURPOSE |
| Plating Thickness | 10u inch |
| Reference Standard | UL |
| Terminal Length | 0.09inch |
| Terminal Pitch | 2mm |
| Termination Type | SOLDER |
| Total Number of Contacts | 132 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.69.40.40 |
Where can I find the QTT-144-04-L-T datasheet?
QTT-144-04-L-T Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for QTT-144-04-L-T?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What contact finish does QTT-144-04-L-T use, and why does it matter for power plane board stacking applications?
The QTT-144-04-L-T uses 10-microinch gold over nickel on the mating contact surfaces and tin over nickel barrier on the termination tails. Gold plating minimizes contact resistance and resists oxidation across 132 positions, which is critical in power plane board stacking where even small resistance variations across contacts can cause uneven current distribution and localized heating in high-current backplane designs.
How many positions does the QTT-144-04-L-T provide, and what body dimensions define its PCB footprint?
This terminal strip provides 132 positions at 2.00 mm pitch in a through-hole configuration with a body length of 3.486 inches (88.5 mm), body depth of 0.512 inches (13 mm), and breadth of 0.236 inches (6 mm). The 2.00 mm pitch is coarser than 0.050-inch series, supporting higher per-pin current capacity in power plane stacking applications where 132 contacts must carry significant aggregate current.
For a server backplane stacking application, what current capacity can be expected from 132 positions at 2.00 mm pitch?
At 2.00 mm pitch, each phosphor bronze contact in the QTT-144-04-L-T can typically carry 1 A to 3 A depending on the temperature rise budget and number of contacts sharing a power plane. With 132 positions distributed across power and ground planes, the connector can support aggregate power delivery of tens of amperes, making it suitable for compute module backplanes and high-current distribution boards in server and industrial computing stacks.
How does QTT-144-04-L-T compare to a 1.27 mm pitch 132-position connector for power distribution design trade-offs?
The 2.00 mm pitch of QTT-144-04-L-T provides larger contact cross-section and greater pin-to-pin spacing compared to a 1.27 mm pitch alternative, improving per-pin current rating and reducing the risk of solder bridging during board assembly across 132 positions. The trade-off is a longer 3.486-inch footprint versus what a 1.27 mm pitch connector would require for the same 132 positions, making QTT-144-04-L-T the better fit when power capacity outweighs PCB space constraints.
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About SAMTEC
SAMTEC is a leading electronic component manufacturer. FindMyChip sources SAMTEC ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 50+ | $28.1000 | $1405.00 |
| 100+ | $20.8900 | $2089.00 |
| 250+ | $18.8000 | $4700.00 |
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