QTT-144-04-G-T SAMTEC Connector (Other) In Stock
SAMTEC QTT-144-04-G-T is a 132-position power plane board stacking connector with 2.00 mm pitch and 4 mm stacking height, featuring gold-over-nickel contact finish for reliable high-current power distribution. Designed for backplane, server, and industrial computing power plane applications. From $18.50 each in stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 132
- Lifecycle
- ACTIVE
- Datasheet
- QTT-144-04-G-T Datasheet PDF
- Category
- Connector
- Price
- From $23.6100(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-G-T?
- 132-position power plane board stacking connector at 2.00 mm pitch handles high current loads for robust power distribution between backplane and daughter cards
- Gold (20 µin) over nickel contact finish on phosphor bronze contacts delivers low contact resistance and long-term reliability in power rail interconnects
- 4 mm board-to-board stacking height accommodates standard PCB assemblies and facilitates thermal management between mated boards
- Compact 3.486 inch body length with 0.512 inch depth enables dense power plane routing in server, telecom, and industrial computing systems
What is QTT-144-04-G-T used for?
The QTT-144-04-G-T is engineered for high-density power distribution in server motherboards, telecom blades, and ATCA/VPX backplane systems where 132 power plane contacts must be distributed reliably at 2.00 mm pitch. Its large contact count supports parallelized power delivery networks, enabling low-impedance supply rails for multi-core processors and FPGAs. The 4 mm stacking height and rugged phosphor bronze contacts ensure stable performance in rack-mounted equipment subject to vibration and thermal cycling.
What are the specifications of QTT-144-04-G-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 (20) OVER NICKEL |
| Contact Finish Termination | Gold (Au) - 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 | e4 |
| 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 | 20u 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-G-T datasheet?
QTT-144-04-G-T Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for QTT-144-04-G-T?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What stacking height and pitch does the QTT-144-04-G-T provide for power plane connections?
The QTT-144-04-G-T provides a 4 mm board-to-board stacking height with 132 positions at 2.00 mm pitch. This combination supports high-current power distribution networks in server and telecom backplane designs where low-impedance parallel power delivery across 132 contacts reduces voltage drop under peak load conditions.
What current capacity does the 132-position QTT-144-04-G-T support for backplane power rails?
SAMTEC QTT power plane connectors with phosphor bronze contacts and gold-over-nickel finish are rated to carry 1 A to 2 A per contact depending on operating temperature. With 132 contacts available for power distribution, the QTT-144-04-G-T can support aggregate current delivery of 50 A to 100 A when contacts are parallelized across multiple supply rails, suitable for 12 V and 48 V backplane architectures.
How does the gold contact finish on QTT-144-04-G-T improve long-term reliability compared to tin-plated alternatives?
The 20 µin gold over nickel barrier contact finish resists oxidation and fretting corrosion over thousands of mating cycles, maintaining contact resistance below 10 mΩ in humid and thermally cycling environments. Tin-plated contacts can develop oxide films that increase resistance over time, making gold-finish connectors like the QTT-144-04-G-T the preferred choice for mission-critical server and telecom backplanes operating at 85°C continuous.
Which backplane and computing standards are served by the QTT-144-04-G-T's board stacking architecture?
The QTT-144-04-G-T suits ATCA (AdvancedTCA), VPX (VITA 46), and custom high-availability server backplane designs that require reliable power delivery with stacking heights between 3 mm and 8 mm. Its 132-position count supports multi-rail power architectures distributing 12 V, 5 V, 3.3 V, and 48 V simultaneously, covering the power requirements of high-end processors, ASICs, and memory subsystems in a single connector footprint.
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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+ | $33.8400 | $1692.00 |
| 100+ | $26.2200 | $2622.00 |
| 250+ | $23.6100 | $5902.50 |
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