QTT-148-03-L-T SAMTEC Connector (Other) In Stock
SAMTEC QTT-148-03-L-T is a 144-position board-stacking terminal strip with 2.00 mm power plane pitch and phosphor bronze contacts finished with gold over nickel. Body length is 3.802 inch, supporting high-current power distribution. From $4.50 in stock worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 144
- Lifecycle
- ACTIVE
- Datasheet
- QTT-148-03-L-T Datasheet PDF
- Category
- Connector
- Price
- From $19.9100(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-148-03-L-T?
- 144-position board stacking connector with 2.00 mm power plane pitch for high-density power distribution between stacked PCBs
- Phosphor bronze contacts with gold (10 µin) over nickel mating finish, ensuring low contact resistance and extended mating cycles
- Tin-over-nickel termination finish on PCB contact tails for reliable solderability in reflow and wave soldering processes
What is QTT-148-03-L-T used for?
The QTT-148-03-L-T is designed for board-stacking power distribution applications in server blades, FPGA development platforms, and high-performance computing modules where large pin counts and robust power delivery are required. Its 2.00 mm pitch and 144-position configuration enable efficient routing of multiple power rails and ground planes across stacked PCBs. The gold-over-nickel mating finish ensures reliable electrical contact through thousands of mating cycles in demanding data center environments.
What are the specifications of QTT-148-03-L-T?
| Pbfree Code | Yes |
| YTEOL | 8 |
| Body Breadth | 0.236inch |
| Body Depth | 0.433inch |
| Body Length | 3.802inch |
| 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 | 144 |
| 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-148-03-L-T datasheet?
QTT-148-03-L-T Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for QTT-148-03-L-T?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the 2.00 mm pitch of the QTT-148-03-L-T compare to standard 2.54 mm pitch connectors for power plane applications?
The QTT-148-03-L-T uses a 2.00 mm pitch, which is 21% tighter than the standard 2.54 mm pitch. This allows 144 positions to be accommodated in a 3.802 inch body length, providing higher pin density for power plane routing while still supporting adequate current capacity per contact, typically rated at 3 A per pin at 30°C temperature rise.
What is the significance of gold (10 µin) over nickel mating finish on the QTT-148-03-L-T contacts?
The 10 µin (microinch) gold flash over nickel barrier provides low contact resistance, typically below 10 milliohms, while the nickel layer prevents diffusion of base metal into the gold surface. This finish supports at least 500 mating cycles and maintains stable electrical performance in environments with temperatures from -55°C to +125°C.
In which board-stacking configurations can the QTT-148-03-L-T be used and what stack heights does it support?
The QTT-148-03-L-T is a male terminal strip designed to mate with corresponding female QTT receptacle connectors. The -03- in the part number indicates a 8.00 mm stack height, and the 144-position layout across its 3.802 inch body length makes it suitable for stacking computing modules, DSP boards, and power distribution boards in modular rack systems.
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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+ | $28.5300 | $1426.50 |
| 100+ | $22.1100 | $2211.00 |
| 250+ | $19.9100 | $4977.50 |
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