Name: 202D921-4/42-0 HEATSHRINK BOOT SZ21 BLACK
Brand: TE Connectivity Aerospace, Defense and Marine
SKU: 202D921-4/42-0
Price: 19.552 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 Large Diameter Supplied

Accepted Answer

This specification indicates that a component, typically a cable, wire, or tubular product, is provided by the supplier in a configuration where its outer diameter exceeds a standard or common size. This larger dimension directly impacts handling, install

Question 6

What is the Large Diameter Recovered

Accepted Answer

This parameter specifies the final outer diameter of a cable or wire after its insulation or jacket has been removed (stripped) and the underlying shielding or conductor bundle has been allowed to relax or "recover" to its natural, uncompressed state. It

Question 7

What is the Small Diameter Supplied

Accepted Answer

This specification indicates that the component is provided with a reduced cross-sectional dimension as a standard or default configuration. It is a key physical parameter that directly impacts the component's spatial footprint, current-carrying capacity,

Question 8

What is the Small Diameter Recovered

Accepted Answer

This parameter specifies the outer diameter of the cable's insulating jacket after the manufacturing process of shrinking it onto the conductor, typically measured in millimeters (mm). It is a critical dimensional specification for ensuring the cable asse

Question 9

What is the Large Recovered Length

Accepted Answer

This parameter specifies the maximum length of a cable or wire harness that can be effectively stored or managed within a retractable reel or cord management system. It defines the total usable extension length available for deployment from the fully retr

Question 10

What is the Small Recovered Length

Accepted Answer

This parameter specifies the minimum length of the cable's internal conductors that must remain intact and unaltered (i.e., not stripped, cut, or terminated) immediately adjacent to a connector or other termination point. It ensures sufficient conductor l

Question 11

What is the Total Length Supplied

Accepted Answer

This parameter specifies the complete, usable length of a cable, wire, or pre-fabricated harness assembly as provided by the manufacturer, measured in meters (m) or feet (ft). It is a critical logistical and design specification that determines the maximu

Question 12

What is the Total Length Recovered

Accepted Answer

This parameter specifies the total length of a coiled cable, spring, or retractable mechanism that can be fully extended from its housing or storage state. It is a key mechanical specification defining the usable reach and deployment range of the componen

Question 13

What is the Type

Accepted Answer

This parameter categorizes a component based on its fundamental operating principle, internal structure, or primary application domain. It serves as the highest-level identifier, grouping devices with shared core characteristics—such as "N-Channel MOSFET,

Question 14

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 15

What is the Shell Size - Insert

Accepted Answer

This parameter specifies the physical dimensions of the cavity or opening within a connector's main housing that is designed to accommodate and secure the insert—the internal component holding the contacts. It defines the insert's fit, ensuring proper ali

Question 16

What is the Color

Accepted Answer

A visual attribute determined by the wavelength of light reflected or emitted, used for rapid identification, polarity marking, functional grouping (e.g., resistor bands, LED emission, wire jackets), and status indication of components within a system.

Question 17

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 18

What is the Material

Accepted Answer

The specific substance or combination of substances from which a component is primarily fabricated. This fundamental specification determines key physical, electrical, and thermal properties, including conductivity, resistivity, mechanical strength, therm

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