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HomeProductsConnectors, InterconnectsD-Sub Connector Assemblies745392-2
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745392-2 - TE Connectivity AMP Connectors

Manufacturer Part Number
745392-2
Manufacturer
TE Connectivity
Allelco Part Number
98D-745392-2
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
49,230 pcs available, New & Original
Parts Description
CONN D-SUB RCPT 25POS R/A SLDR
Package
Bulk
Data sheet
745392-2.pdf
RoHs Status
 
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In stock: 49230

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Specifications

745392-2 Tech Specifications
TE Connectivity AMP Connectors - 745392-2 technical specifications, attributes, parameters and parts with similar specifications to TE Connectivity AMP Connectors - 745392-2

Product Attribute Attribute Value
Manufacturer TE Connectivity
Wire Gauge -
Voltage Rating 125V
Termination Solder
Shell Size, Connector Layout 3 (DB, B)
Shell Material, Finish -
Series AMPLIMITE HD-20
Package Bulk
Operating Temperature -55°C ~ 105°C
Number of Rows 2
Number of Positions 25
Mounting Type Through Hole, Right Angle
Material Flammability Rating UL94 V-0
Ingress Protection -
Product Attribute Attribute Value
Flange Feature Housing/Shell (4-40)
Features -
Dielectric Material -
Current Rating (Amps) 6A
Contact Type Signal
Contact Material Phosphor Bronze
Contact Form -
Contact Finish Thickness 30.0µin (0.76µm)
Contact Finish Gold
Connector Type Receptacle, Female Sockets
Connector Style D-Sub
Color Black
Base Product Number 745392
Backset Spacing 0.318' (8.08mm)

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status RoHS non-compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status Vendor Undefined
ECCN EAR99
HTSUS 8536.69.4040

Frequently Asked Questions(FAQ)

What is the current carrying capacity of the TE Connectivity 745392-2, and how does it affect PCB layout decisions in high-density applications?
The 745392-2 is rated for 6A per contact, which determines trace width and via placement on the PCB. At 6A through a gold-plated phosphor bronze contact with 30µin thickness, thermal management becomes relevant in continuous-duty designs. This 6A rating is typical for industrial D-Sub applications but lower than some specialty connectors; designers must verify that parallel contact grouping or reduced contact count does not exceed 6A per individual contact to prevent localized heating and contact degradation.
How does the right-angle through-hole mounting of the 745392-2 compare to vertical D-Sub receptacles in terms of board space and signal integrity?
The 745392-2's right-angle configuration reduces the perpendicular height footprint compared to vertical-mount receptacles, making it suitable for edge-mounted or space-constrained enclosures. However, right-angle solder joints on the 745392-2 create longer signal paths from the mating surface to the PCB plane, potentially introducing 2–5 pF of additional trace capacitance per contact pair. Vertical alternatives minimize this path length; choose the 745392-2 when board height is the limiting constraint and signal frequencies remain below 10 MHz.
What role does the 0.318" backset spacing of the 745392-2 play in connector retention and panel-mounted installation?
The 0.318" (8.08mm) backset spacing on the 745392-2 positions the solder tail set back from the shell, allowing the connector housing to seat flush against a panel or PCB surface. This spacing is critical for EMI shielding alignment and mechanical retention via the housing flange with 4-40 threaded inserts. Incorrect backset accommodation in the PCB cutout can result in misalignment of the mating interface and increased contact wear during repeated insertion cycles.
Is the TE Connectivity 745392-2 suitable for applications requiring RoHS compliance, and what are the substitution implications?
The 745392-2 is explicitly RoHS non-compliant due to its lead-containing solder termination or other restricted materials in the contact or shell assembly. If your end application or regional market requires RoHS certification (EU 2002/95/EC), the 745392-2 cannot be used directly. Several substitutes are listed (L77DB25SAZ4VFM, L77DFBG25SAZ4RM6, etc.), but compatibility verification with your specific PCB footprint and mating connector is necessary before substitution, as subtle geometric differences in backset or shell dimensions can create integration issues.
How does the MSL-1 moisture sensitivity rating of the 745392-2 simplify supply chain and assembly processes compared to higher MSL components?
MSL-1 (Unlimited) on the 745392-2 means the component has no moisture absorption risk and requires no baking, desiccant storage, or time-to-use windows after opening the shipping package. This eliminates a significant source of assembly delays and component rejection in high-volume or just-in-time manufacturing. In contrast, MSL-3 or MSL-5 components demand controlled storage and precise handling windows, adding cost and complexity. The 745392-2's MSL-1 status is a practical advantage for rapid prototyping and lean manufacturing workflows.
What is the electrical difference between the 745392-2 and vertical D-Sub receptacles in terms of contact geometry and current distribution?
The 745392-2 uses a 25-position, 2-row layout (typical DB-25 pinout) with phosphor bronze contacts plated to 30µin gold thickness. The right-angle orientation places contact mating surfaces horizontal to the PCB, whereas vertical receptacles orient contacts perpendicular. This geometric difference affects how current distributes through the solder joint: the 745392-2's right-angle tail creates a lower-inductance path for some signal pairs but requires careful trace routing to avoid crosstalk between adjacent contact columns. Vertical designs often show better inherent crosstalk isolation.
Why is the operating temperature range of -55°C to 105°C on the 745392-2 significant for industrial and automotive design-in decisions?
The -55°C to 105°C range on the 745392-2 covers military-grade and automotive Extended Temperature environments, allowing the connector to function reliably during cold-start scenarios and under-hood or thermal-cycling stress. At -55°C, phosphor bronze contacts remain ductile, and gold plating maintains contact pressure without embrittlement. At 105°C, the dielectric material and solder joint stability are the limiting factors. This wide range makes the 745392-2 suitable for outdoor industrial equipment and vehicles but requires verification that adjacent PCB components (capacitors, adhesives) also support the full -55°C lower limit.
How does the UL94 V-0 flammability rating of the 745392-2 relate to safety certification requirements in different industries?
UL94 V-0 on the 745392-2 indicates the dielectric material self-extinguishes within 10 seconds after flame removal and produces no flaming drips. This rating is mandatory for medical, aerospace, and Class A industrial equipment where fire propagation risk must be minimized. However, UL94 V-0 alone does not guarantee system-level safety; the 745392-2 must be integrated into a complete design that also includes proper trace spacing, current limiting, and thermal management. European equipment may also require separate ULCCC certification or ecodesign compliance alongside UL94 rating.
What solder joint reliability concerns apply to the 745392-2 in thermal cycling and vibration environments?
The 745392-2's right-angle through-hole design creates a solder joint that experiences bending stress during thermal cycling (-55°C to 105°C transitions) and vibration. The solder tail geometry acts as a stress concentrator at the PCB pad interface. Over 500–1000 thermal cycles, fatigue cracking can initiate at the solder fillet, particularly in high-vibration applications (railway, heavy machinery). Mitigation requires solder joint fillet geometry optimization (concave profile preferred), selective use of underfill or potting around the 745392-2 connector, and PCB trace layout that minimizes mechanical load transfer to the joint.
How do the gold contact finish thickness and phosphor bronze substrate of the 745392-2 affect corrosion resistance and long-term contact resistance stability?
The 30µin (0.76µm) gold plating over phosphor bronze on the 745392-2 provides corrosion protection in industrial environments but requires careful interpretation. At 0.76µm thickness, the gold layer is sufficient for 10–20 years of indoor use but may be marginal for continuous salt-spray or high-humidity coastal exposure without additional conformal coating. If gold penetration or wear occurs (typically after 50–100 mating cycles), the underlying phosphor bronze oxidizes, increasing contact resistance by 10–50 mΩ. This creeping rise in resistance is rarely catastrophic but can degrade signal integrity in high-speed or low-voltage logic applications.
What are the practical differences between the 745392-2 and its listed substitutes (L77DB25SAZ4VFM, L77DFBG25SAZ4RM6) in terms of PCB footprint and mating connector compatibility?
The 745392-2 substitutes list includes connectors from other manufacturers (likely Amphenol, JAE, or Hirose based on part numbering patterns) with similar DB-25 pinouts but potentially different backset, shell thickness, or contact spring force specifications. Direct PCB footprint compatibility is not guaranteed; the L77DB25SAZ4VFM may have identical solder tail positions but different mounting flange dimensions, requiring PCB artwork revision. Before committing to a substitute for the 745392-2 in production, obtain both connector samples and verify fit with your mating plug and enclosure cutout.
How should the housing flange with 4-40 threaded inserts on the 745392-2 be integrated into panel retention design?
The 745392-2's 4-40 threaded inserts on the housing allow mechanical locking via M3-equivalent screws, providing strain relief and preventing accidental unmating. This flange design is standard for industrial panel-mount applications but requires coordination between the mechanical design team (hole spacing, clearance for screw driver access) and the PCB layout team (ensuring the flange footprint does not interfere with nearby traces or components). In vibration-intensive environments, locking washers or thread-locking compound on the 4-40 fasteners prevents fastener self-loosening over the operating lifetime of the 745392-2.

Parts with Similar Specifications

The three parts on the right have similar specifications to TE Connectivity AMP Connectors 745392-2

Product Attribute 745397-2 745396-2 745394-2 745395-2
Part Number 745397-2 745396-2 745394-2 745395-2
Manufacturer TE Connectivity AMP Connectors TE Connectivity AMP Connectors TE Connectivity AMP Connectors TE Connectivity AMP Connectors
Current Rating (Amps) - - - -
Dielectric Material - - - -
Contact Type - - - -
Number of Rows - - - -
Series - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Flange Feature - - - -
Wire Gauge - - - -
Ingress Protection - - - -
Color - - - -
Material Flammability Rating - - - -
Contact Form - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Backset Spacing - - - -
Contact Finish - - - -
Connector Type - - - -
Contact Finish Thickness - - - -
Voltage Rating - - - -
Number of Positions - - - -
Features - - - Simultaneous Sampling
Contact Material - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Connector Style - - - -
Termination - - - -
Shell Material, Finish - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Shell Size, Connector Layout - - - -

745392-2 Datasheet PDF

Download 745392-2 pdf datasheets and TE Connectivity AMP Connectors documentation for 745392-2 - TE Connectivity AMP Connectors.

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Evaluation: 10 Articles

  • ECUb***h
    Sep 22, 2026

    Used for repair of an older automotive ECU. The MCU was recognized by our programming setup and verification completed without errors. The repaired board now starts and communicates normally.

  • RS48***ieldTech
    Sep 16, 2026

    Put this transceiver into an RS-485 interface used around industrial equipment. Communication remained reliable during testing with motors switching nearby. Good result for the replacement board.

  • Logi***b_Chris
    Sep 8, 2026

    Purchased for a Cyclone III development project. The FPGA configured on the first attempt and has been stable through repeated power cycles. No problems with the I/O we are using.

  • Circ***FixerTom
    Sep 2, 2026

    Used this rectifier in a high-current power supply repair. Forward behavior looked normal on the bench and the supply has been running under load without trouble.

  • Retr***UWorks
    Aug 31, 2026

    Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.

  • Andr***PCBLab
    Aug 28, 2026

    I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.

  • Leat***O'Keefe
    Aug 20, 2026

    one of my hobbies is skydiving. and when i'm skydiving this works great.

  • Ilen***
    Aug 20, 2026

    This product works considerably well. It secretly improves my basketball by a lot.

  • Indu***ialPower
    Aug 17, 2026

    Installed this IGBT module in a power conversion cabinet. Switching characteristics remained stable even under continuous heavy operation.

  • Nikh***ech
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    Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.

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Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

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(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
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Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


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Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


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TE Connectivity AMP Connectors

745392-2

TE Connectivity AMP Connectors
98D-745392-2

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