SQT-139-02-L-DAlternatives & Equivalent Parts
About SQT-139-02-L-D
SQT-139-02-L-D is a Connector component manufactured by SAMTEC. It comes in a Other package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
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Specification Comparison
| Parameter | SQT-139-02-L-DSource | SQT-139-01-L-D | SQT-139-02-F-D | SQT-139-01-F-D | SQT-139-03-F-D |
|---|---|---|---|---|---|
| Manufacturer | SAMTEC | SAMTEC | SAMTEC | SAMTEC | SAMTEC |
| Package Type | Other | Other | Other | Other | Other |
| Pin Count | 78 | 78 | 78 | 78 | 78 |
| Temperature Range | -55.0°C ~ 125.0°C | -55.0°C ~ 125.0°C | -55.0°C ~ 125.0°C | -55.0°C ~ 125.0°C | -55.0°C ~ 125.0°C |
| Price | $3.7095 | $4.7988 | $4.9600 | $5.0374 | $4.8300 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | |||||
| Pbfree Code | Yes | Yes | Yes | Yes | Yes |
| YTEOL | 8 | 8 | 8 | 8 | 8 |
| Additional Feature | FLEXYZ, TIGER BUY CONTACT | FLEXYZ, TIGER BUY CONTACT | FLEXYZ, TIGER BUY CONTACT | FLEXYZ, TIGER BUY CONTACT | FLEXYZ, TIGER BUY CONTACT |
| Body Breadth | 0.158 inch | 0.158 inch | 0.158 inch | 0.158 inch | 0.158 inch |
| Body Depth | 0.25 inch | 0.25 inch | 0.25 inch | 0.25 inch | 0.25 inch |
| Body Length | 3.093 inch | 3.093 inch | 3.093 inch | 3.093 inch | 3.093 inch |
| Body/Shell Style | SOCKET | SOCKET | SOCKET | SOCKET | SOCKET |
| Connector Type | BOARD CONNECTOR | BOARD CONNECTOR | BOARD CONNECTOR | BOARD CONNECTOR | BOARD CONNECTOR |
| Contact Finish Mating | GOLD | GOLD (10) OVER NICKEL (50) | GOLD FLASH | GOLD FLASH OVER NICKEL (50) | GOLD FLASH |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier | Tin (Sn) - with Nickel (Ni) barrier | Matte Tin (Sn) - with Nickel (Ni) barrier | Tin (Sn) - with Nickel (Ni) barrier | Matte Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | FEMALE | FEMALE | FEMALE | FEMALE | FEMALE |
| Contact Material | PHOSPHOR BRONZE | PHOSPHOR BRONZE | PHOSPHOR BRONZE | PHOSPHOR BRONZE | PHOSPHOR BRONZE |
| Contact Pattern | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Contact Resistance | 10 mΩ | 10 mΩ | 10 mΩ | 10 mΩ | 10 mΩ |
| Contact Style | SQ PIN-SKT | SQ PIN-SKT | SQ PIN-SKT | SQ PIN-SKT | SQ PIN-SKT |
| DIN Conformance | NO | NO | NO | NO | NO |
| Durability | 100 Cycles | 100 Cycles | 100 Cycles | 100 Cycles | 100 Cycles |
| Filter Feature | NO | NO | NO | NO | NO |
| IEC Conformance | NO | NO | NO | NO | NO |
| Insertion Force-Max | 1.112 N | 1.112 N | 1.112 N | 1.112 N | 1.112 N |
| Insulator Color | BLACK | BLACK | BLACK | BLACK | BLACK |
| Insulator Material | LIQUID CRYSTAL POLYMER | LIQUID CRYSTAL POLYMER | LIQUID CRYSTAL POLYMER | LIQUID CRYSTAL POLYMER | LIQUID CRYSTAL POLYMER |
| JESD-609 Code | e3 | e3 | e3 | e3 | e3 |
| MIL Conformance | NO | NO | NO | NO | NO |
| Mating Contact Pitch | 0.079 inch | 0.079 inch | 0.079 inch | 0.079 inch | 0.079 inch |
| Mating Contact Row Spacing | 0.079 inch | 0.079 inch | 0.079 inch | 0.079 inch | 0.079 inch |
| Mating Information | MULTIPLE MATING PARTS AVAILABLE | MULTIPLE MATING PARTS AVAILABLE | MULTIPLE MATING PARTS AVAILABLE | MULTIPLE MATING PARTS AVAILABLE | MULTIPLE MATING PARTS AVAILABLE |
| Mixed Contacts | NO | NO | NO | NO | NO |
| Mounting Option 1 | LOCKING | LOCKING | LOCKING | LOCKING | LOCKING |
| Mounting Style | STRAIGHT | STRAIGHT | STRAIGHT | STRAIGHT | STRAIGHT |
| Mounting Type | BOARD | BOARD | BOARD | BOARD | BOARD |
| Number Of Connectors | ONE | ONE | ONE | ONE | ONE |
| Number Of PCB Rows | 2 | 2 | 2 | 2 | 2 |
| Number of Rows Loaded | 2 | 2 | 2 | 2 | 2 |
| Option | GENERAL PURPOSE | GENERAL PURPOSE | GENERAL PURPOSE | GENERAL PURPOSE | GENERAL PURPOSE |
| PCB Contact Pattern | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| PCB Contact Row Spacing | 2.0066 mm | 2.0066 mm | 2.0066 mm | 2.0066 mm | 2.0066 mm |
| Plating Thickness | 10u inch | 10u inch | FLASH inch | FLASH inch | FLASH inch |
| Polarization Key | POLARIZED HOUSING | POLARIZED HOUSING | POLARIZED HOUSING | POLARIZED HOUSING | POLARIZED HOUSING |
| Rated Current (Signal) | 5.1 A | 5.1 A | 5.1 A | 5.1 A | 5.1 A |
| Reference Standard | UL, CSA | UL, CSA | UL, CSA | UL, CSA | UL, CSA |
| Terminal Length | 0.6 inch | 0.09 inch | 0.6 inch | 0.09 inch | 0.208 inch |
| Terminal Pitch | 2 mm | 2 mm | 2 mm | 2 mm | 2 mm |
| Termination Type | SOLDER | SOLDER | SOLDER | SOLDER | SOLDER |
| Total Number of Contacts | 78 | 78 | 78 | 78 | 78 |
| Withdrawl Force-Min | .834 N | .834 N | .834 N | .834 N | .834 N |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Need pricing on these alternatives?
Get one quote covering all 4 alternatives for SQT-139-02-L-D — response within 24 hours.
Quick Links
Board Connector, 78 Contact(s), 2 Row(s), Female, Straight, 0.079 inch Pitch, Solder Terminal, Locking, Black Insulator, Socket
Board Connector, 78 Contact(s), 2 Row(s), Female, Straight, 0.079 inch Pitch, Solder Terminal, Locking, Black Insulator, Socket
Board Connector, 78 Contact(s), 2 Row(s), Female, Straight, 0.079 inch Pitch, Solder Terminal, Locking, Black Insulator, Socket
Board Connector, 78 Contact(s), 2 Row(s), Female, Straight, 0.079 inch Pitch, Solder Terminal, Locking, Black Insulator, Socket
Why Look for Alternatives?
Finding alternatives for SQT-139-02-L-D is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating SQT-139-02-L-D replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
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FAQ
What is equivalent to SQT-139-02-L-D?
Known equivalents for SQT-139-02-L-D include SQT-139-01-L-D, SQT-139-02-F-D, SQT-139-01-F-D. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of SQT-139-02-L-D?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify SQT-139-02-L-D alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.