QTT-118-01-L-T SAMTEC Connector (Other) In Stock
SAMTEC QTT-118-01-L-T is a 54-position, 2.00 mm pitch power plane terminal strip for board stacking applications. It features phosphor bronze male contacts with 10 µ" gold-over-nickel mating finish and a 1.432" body length, delivering reliable high-current power distribution in board-to-board stacking configurations.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 54
- Lifecycle
- ACTIVE
- Datasheet
- QTT-118-01-L-T Datasheet PDF
- Category
- Connector
- Price
- From $4.9700(MOQ 250)
- 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-118-01-L-T?
- 54-position configuration at 2.00 mm pitch in a 1.432" body for high-current board stacking power distribution
- 10 µ" gold-over-nickel mating contact finish ensuring low-resistance, corrosion-resistant power connections
- Phosphor bronze contact material providing superior spring force and consistent mating retention across mating cycles
- Tin-over-nickel termination finish on solder tails ensuring reliable reflow-soldered board attachment
What is QTT-118-01-L-T used for?
The QTT-118-01-L-T is designed for board stacking power plane applications where 54 contacts at a 2.00 mm pitch distribute power and ground between a main board and a mezzanine card. It is commonly deployed in server computing platforms, power management modules, and industrial computing systems where high current capacity and reliable multi-contact power distribution across a 1.432" connector body are required. The phosphor bronze contacts and gold-over-nickel finish ensure long service life in demanding board-stack environments.
What are the specifications of QTT-118-01-L-T?
| Pbfree Code | Yes |
| YTEOL | 8 |
| Body Breadth | 0.236inch |
| Body Depth | 0.276inch |
| Body Length | 1.432inch |
| 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 | 54 |
| 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-118-01-L-T datasheet?
QTT-118-01-L-T Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for QTT-118-01-L-T?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the pitch and contact count of the QTT-118-01-L-T, and how long is the connector body?
The QTT-118-01-L-T provides 54 positions at a 2.00 mm pitch within a connector body length of 1.432 inches. This 2.00 mm pitch is well-suited for power plane applications where wider contact spacing allows higher current per contact compared to finer-pitch signal connectors, making it practical for distributing power across 54 pins between stacked boards.
Why is the 10 µ" gold-over-nickel mating finish on the QTT-118-01-L-T important for power plane reliability?
The 10 µ" gold plating on nickel provides a durable, corrosion-resistant contact surface on all 54 mating contacts, ensuring stable low-resistance connections even after repeated mating cycles. For power plane applications at 2.00 mm pitch, this gold finish prevents oxide buildup that could increase contact resistance and cause voltage drops, maintaining reliable power delivery to mezzanine boards over the connector's service life.
In which board stacking system designs is the QTT-118-01-L-T most commonly used?
The QTT-118-01-L-T is most commonly used in server mezzanine card interfaces, high-performance computing power delivery modules, and industrial control backplanes where 54 power and ground contacts at 2.00 mm pitch are needed to deliver current between a baseboard and a daughtercard. Its phosphor bronze contacts and board-stacking connector design are optimized for stable power distribution in systems with multi-amp per contact requirements.
How does the phosphor bronze contact material of the QTT-118-01-L-T benefit repeated mating operations?
Phosphor bronze provides higher spring force and better fatigue resistance than standard brass, allowing the 54 contacts of the QTT-118-01-L-T to maintain consistent normal force and low contact resistance over hundreds of mating cycles at the 2.00 mm pitch. This material choice is especially valuable in power plane connectors where contact degradation from repeated insertion and extraction would increase resistance and compromise current-carrying performance.
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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 |
|---|---|---|
| 250+ | $8.6700 | $2167.50 |
| 500+ | $6.7600 | $3380.00 |
| 1000+ | $4.9700 | $4970.00 |
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