Name: DF51K-4DP-2DSA(805) CONN HDR 2MM DUAL GLD PCB 4POS
Brand: Hirose Electric Co Ltd
SKU: DF51K-4DP-2DSA(805)
Price: 0.464 USD
Availability: InStock
Rating: 4.9 (2 reviews)

Question 1

What is the Mfr

Accepted Answer

Mfr refers to the component's producing company, whose brand and manufacturing processes directly impact the component's performance, consistency, and traceability, making it a key reference during selection.

Question 2

What is the Series

Accepted Answer

Series indicates a manufacturer’s organized range of components, often named with a common prefix or code, to streamline product selection and ensure compatibility across similar models.

Question 3

What is the Package

Accepted Answer

his term denotes the protective casing (often made of plastic, ceramic, or metal) that encapsulates an integrated circuit, determining its size, reliability, and suitability for different mounting technologies like through-hole or SMT.

Question 4

What is the Base Product Number

Accepted Answer

By using the Base Product Number, manufacturers and customers can efficiently communicate about component families without detailing every specification, streamlining the procurement process.

Question 5

What is the Contact Material

Accepted Answer

Contact Material refers to the specific metal or alloy used at the interface where two conductors meet to establish an electrical path in connectors, switches, or relays. Its core properties include conductivity (affecting contact resistance), hardness (a

Question 6

What is the Mated Stacking Heights

Accepted Answer

Mated Stacking Heights refers to the total vertical height from the bottom mounting surface (e.g., PCB) to the topmost point of two or more mated board-to-board or wire-to-board connectors.

Question 7

What is the Insulation Color

Accepted Answer

The visible hue of the insulating material on a wire, cable, or component body, determined by added pigments. It serves as a primary visual identifier for circuit tracing, polarity designation (e.g., red for positive), functional grouping (e.g., signal vs

Question 8

What is the Pitch - Mating

Accepted Answer

Center-to-center distance between corresponding contacts on two mating connectors, typically measured in millimeters (mm). This dimension is critical for ensuring proper alignment and electrical connection between the plug and receptacle, directly influen

Question 9

What is the Contact Finish - Mating

Accepted Answer

A conductive surface treatment applied to the electrical contact areas of a connector's pins or sockets. Its primary function is to ensure low and stable contact resistance, prevent oxidation and corrosion of the base metal, and enhance durability over nu

Question 10

What is the Contact Finish Thickness - Mating

Accepted Answer

This parameter specifies the vertical dimension of the metallic plating applied to the electrical contact surfaces where two conductors mate. Measured in micrometers (µm) or microinches (µin), it is a critical determinant of the contact's durability, wear

Question 11

What is the Contact Finish - Post

Accepted Answer

This specification details the surface plating or coating applied to the electrical contacts *after* the initial forming or stamping process. Its primary function is to protect the base contact material (e.g., copper alloy) from oxidation and corrosion, e

Question 12

What is the Contact Finish Thickness - Post

Accepted Answer

This parameter specifies the vertical dimension of the metallic plating layer applied to the electrical contacts after the initial base material has been formed. It is a critical quality control metric, typically measured in micrometers (µm) or microinche

Question 13

What is the Product Status

Accepted Answer

Product Status indicates the commercial availability and production stage of the component, such as Active, Not for New Design (NRND), Obsolete, or Last Time Buy (LTB).

Question 14

What is the Contact Shape

Accepted Answer

This parameter defines the geometric profile of the conductive mating surface within a connector or switch. It is a critical design feature that determines the contact area, insertion force, and long-term reliability by influencing current density, wear c

Question 15

What is the Contact Length - Post

Accepted Answer

This parameter specifies the axial dimension of the conductive pin or post within a connector or terminal that is designed to make physical and electrical contact with its mating counterpart. It is a critical mechanical specification that determines the d

Question 16

What is the Insulation Height

Accepted Answer

This parameter specifies the vertical distance from the mounting surface (e.g., PCB) to the top of the insulating body of a component, such as a terminal block or connector. It defines the component's physical profile and the clearance required above the

Question 17

What is the Shrouding

Accepted Answer

A protective barrier or cover integrated into a connector housing that surrounds the mating interface. Its primary function is to prevent accidental contact with live pins, ensure correct polarization during mating by physically guiding the plug, and prov

Question 18

What is the Overall Contact Length

Accepted Answer

This dimension specifies the total axial length of the conductive contact element within a connector, from its mating interface to its termination point. It is a critical mechanical parameter that determines the contact's reach, ensuring proper engagement

Question 19

What is the Insulation Material

Accepted Answer

A dielectric substance used to electrically isolate conductive elements, preventing short circuits and current leakage. Its primary function is to ensure operational safety and signal integrity by withstanding specified voltage stresses. Key properties in

Question 20

What is the Row Spacing - Mating

Accepted Answer

The center-to-center distance between adjacent rows of contacts in a connector, measured in millimeters (mm) or inches (in). This dimension is critical for defining the connector's mating interface geometry, ensuring proper alignment during engagement, an

Question 21

What is the Contact Length - Mating

Accepted Answer

This parameter specifies the axial distance over which the electrical contacts of a connector are engaged when fully mated. It is a critical mechanical design factor that determines the contact's stability, current-carrying capacity, and resistance to vib

Question 22

What is the Operating Temperature

Accepted Answer

The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the powe

Question 23

What is the Connector Type

Accepted Answer

A standardized classification for electrical interfaces based on their mechanical form, mating mechanism, and electrical characteristics. It defines the physical and electrical compatibility between mated pairs, ensuring reliable signal and power transmis

Question 24

What is the Applications

Accepted Answer

This parameter describes the specific electronic systems, circuits, or end-use products for which a component is designed and validated. It guides engineers in selecting parts that are functionally appropriate, meet environmental and regulatory requiremen

Question 25

What is the Contact Type

Accepted Answer

This parameter defines the physical form and operational mechanism of the conductive interface within a connector, switch, or relay. Common types include pin/socket, blade/receptacle, spring-loaded, and surface-mount pads. The selection dictates mating fo

Question 26

What is the Fastening Type

Accepted Answer

This parameter specifies the mechanical method used to secure a component, connector, or assembly to a panel, chassis, or another component. It defines the interface for attachment, such as screw threads, snap-fit clips, bayonet locks, or adhesive bonding

Question 27

What is the Number of Positions Loaded

Accepted Answer

Specifies the count of electrical contact positions within a connector or terminal block that are pre-equipped with conductive elements (e.g., pins, sockets, or screw terminals) at the time of manufacture. This defines the immediate, usable connection cap

Question 28

What is the Termination

Accepted Answer

The specific method and hardware used to establish a permanent or semi-permanent electrical and mechanical connection at the end of a wire, cable, or component lead. Common methods include soldering, crimping, screw clamping, insulation displacement, and

Question 29

What is the Features

Accepted Answer

These are the additional, non-core capabilities or characteristics integrated into a component beyond its primary function. They enhance performance, reliability, or ease of use, such as built-in protection (thermal shutdown, overcurrent), enable/disable

Question 30

What is the Voltage Rating

Accepted Answer

The maximum sustained potential difference a component can withstand between its terminals without risk of insulation breakdown, performance degradation, or permanent damage. This absolute maximum rating, specified in volts (V) for either DC or AC (RMS) c

Question 31

What is the Current Rating (Amps)

Accepted Answer

Specifies the maximum continuous current a conductor, connector, or component can safely carry without exceeding its thermal limits, thereby preventing overheating and ensuring long-term reliability. This ampere (A) rating is a fundamental parameter for s

Question 32

What is the Ingress Protection

Accepted Answer

A standardized rating system (IEC 60529) that classifies the degree of protection provided by an enclosure against the intrusion of solid objects (first digit) and liquids (second digit). It quantifies resistance to dust, accidental contact, and water ing

Question 33

What is the Mounting Type

Accepted Answer

Mounting Type refers to the standardized classification of the method by which an electronic component or module is physically secured and electrically connected to a printed circuit board, chassis, or panel. It defines how the component integrates into t

Question 34

What is the Number of Positions

Accepted Answer

It specifies the total count of individual, electrically distinct connection points or terminals available within a single connector, switch, relay, or terminal block. This fundamental parameter defines the component's capacity for establishing independen

Question 35

What is the Material Flammability Rating

Accepted Answer

A flammability classification for the insulating or housing material of a component, indicating its resistance to ignition and flame propagation when exposed to a standardized ignition source. Common rating systems include UL 94 (e.g., V-0, V-1, HB) and I

Question 36

What is the Number of Rows

Accepted Answer

It specifies the count of parallel contact or pin arrangements along one axis in a multi-pin connector, switch, or IC package. This dimension, combined with the number of columns, defines the total pin count and the component's physical footprint, directl

Question 37

What is the Style

Accepted Answer

This parameter categorizes the physical form and structural design of a component, such as a connector, switch, or enclosure. It defines the overall mechanical configuration, including shape, mounting method, and key external features, which directly dete

Hirose Electric Co Ltd DF51K-4DP-2DSA(805)

CWN-370-10-0000

CWN-350-14-0000

CWN-350-16-0000

CWN-300-20-0000

CWN-370-26-0000

CWN-350-40-0000

CWN-300-50-0000

929665-08-36-I

929667-02-36-I

0026481121