QTT-146-01-F-T SAMTEC Connector (Other) In Stock
SAMTEC QTT-146-01-F-T is a 138-position, 2.00 mm pitch power plane terminal strip designed for board-stacking applications with gold-flash-over-nickel mated contacts and phosphor bronze construction. Its dual-row layout supports simultaneous power and signal distribution in high-density PCB stacks. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 138
- Lifecycle
- ACTIVE
- Datasheet
- QTT-146-01-F-T Datasheet PDF
- Category
- Connector
- Price
- From $15.2400(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-146-01-F-T?
- 138-position 2.00 mm pitch power plane board-stacking connector for simultaneous power and signal distribution
- Gold flash over nickel contact finish on mating surfaces ensures low contact resistance and reliable electrical performance over 500+ mating cycles
- Phosphor bronze contact material provides excellent spring retention and resistance to mechanical relaxation under vibration
- Tin-over-nickel termination finish on solder tails ensures superior solder wettability for reliable PCB attachment
What is QTT-146-01-F-T used for?
The QTT-146-01-F-T is used in high-density board stacking applications including server backplanes, FPGA mezzanine modules, industrial computing racks, and power distribution boards requiring 138 positions at 2.00 mm pitch. Its power plane design allows combined high-current power and signal routing within a single connector, reducing total connector count and PCB footprint in space-constrained stack architectures. The gold-flash contact finish supports reliable electrical connections in rack-mounted equipment subject to vibration and thermal cycling.
What are the specifications of QTT-146-01-F-T?
| Pbfree Code | Yes |
| YTEOL | 8 |
| Body Breadth | 0.236inch |
| Body Depth | 0.276inch |
| Body Length | 3.644inch |
| Connector Type | BOARD STACKING CONNECTOR |
| Contact Finish Mating | GOLD FLASH 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 | FLASH inch |
| Reference Standard | UL |
| Terminal Length | 0.09inch |
| Terminal Pitch | 2mm |
| Termination Type | SOLDER |
| Total Number of Contacts | 138 |
| 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-146-01-F-T datasheet?
QTT-146-01-F-T Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for QTT-146-01-F-T?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the key contact material and finish specifications of the QTT-146-01-F-T?
The QTT-146-01-F-T uses phosphor bronze contacts with a gold flash over nickel finish on mating surfaces and a tin-over-nickel barrier finish on the solder termination tails. Phosphor bronze provides excellent spring compliance, while the gold flash ensures low contact resistance across 500 or more mating cycles in 138-position board-stacking applications.
How does the 138-position QTT-146-01-F-T compare to a 2.54 mm pitch connector for power plane distribution?
The QTT-146-01-F-T uses a 2.00 mm pitch, which is 21% tighter than 2.54 mm pitch connectors. This allows 138 positions to fit in a body length of approximately 3.644 inches — significantly more contacts per linear inch compared to 2.54 mm pitch alternatives, making it more space-efficient for combined power and signal board-to-board applications.
What board stack applications can QTT-146-01-F-T support in an FPGA or server design?
The QTT-146-01-F-T is well suited for FPGA mezzanine card (FMC) stacking, server blade backplane connections, and multi-board computing modules where 138 positions at 2.00 mm pitch provide sufficient I/O count. Its power plane architecture allows routing of multiple power rails — such as 3.3 V, 5 V, and 12 V — alongside high-speed signal lines within the same connector housing.
What is the body size of the QTT-146-01-F-T and how does that affect PCB layout planning?
The QTT-146-01-F-T body measures approximately 3.644 inches long, 0.276 inches deep, and 0.236 inches wide. Designers must reserve a PCB keep-out zone matching these dimensions plus standard clearance for mating connector access and solder inspection, particularly in compact stack modules where 138 positions must be routed within a limited board area.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
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+ | $22.7700 | $1138.50 |
| 100+ | $16.9300 | $1693.00 |
| 250+ | $15.2400 | $3810.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”
You May Also Like
10214-6212PC
3M
Connector
1778573
Phoenix Contact
Connector
5227222-3
TE Connectivity
Connector
S4B-XH-SM4-TB(LF)(SN)
JST (JAPAN SOLDERLESS TERMINALS)
Connector
185226-2
TE Connectivity
Connector
0533980571
Molex
Connector
0360-0-15-01-34-27-10-0
Mill-Max
Connector
7850-0006PR
3M
Connector
AVB 1,5/2/12
BLOCK
Connector
N3764-5002RB
3M
Connector
N3627-6002RB
3M
Connector
N3627-5002RB
3M
Connector
N3440-6002RB
3M
Connector
929715-03-36-I
3M
Connector
929667-02-36-I
3M
Connector
929665-04-36-I
3M
Connector
929665-02-36-I
3M
Connector
929647-04-36-I
3M
Connector
929647-03-36-I
3M
Connector
7834-0006PR
3M
Connector
7826-0006PR
3M
Connector
7820-0006PR
3M
Connector
3440-5002
3M
Connector
3433-5302
3M
Connector