Begin with the assembly drawing, not a replacement photograph
If you are preparing a cable for a new equipment assembly, identify the connection you need at each end before comparing quotations. On this page, the product identity is DC5.5 × 2.1 mm male. State that identity in your request and attach the receiving connector drawing or a clearly identified reference. Ask for the proposed connector dimensions to be checked against that reference, including any dimensions that your own drawing does not yet show.
A photograph can be a useful addition to the inquiry. Label what it represents: an existing cable, a mating part, or the proposed installation. Mark the features you want to retain and the changes you are requesting. Avoid asking for a cable simply described as 'the same as this' when the photo is your only reference. Instead, give the request a project name and drawing revision so that any subsequent discussion refers to one identifiable configuration.
Keep the wire-end requirement in the same brief as the male connector requirement. Tell us how your assembly team intends to connect that end, and ask which preparation can be supplied for the proposed cable. Any stripping, termination or other end preparation should be defined and confirmed in the quotation. Do not leave those details to an interpretation of the word pigtail.
DC5521 identity and DC single-ended series options
The DC single-ended series includes DC5521 male connectors. Its published options include the lengths shown below, black or a customized color, and PVC or rubber outer sheath materials. Use these choices as the starting point for a configuration discussion. They describe the DC single-ended series; they are not a statement that every combination is stocked or that every listed option has already been selected for this product.
For a purchasing specification, move from an option list to one agreed choice for each item. If you would like to compare two lengths or two sheath materials, request separately identified alternatives. Ask that the quotation state the connector, length, color, sheath and wire-end preparation for each alternative, rather than treating an unselected series option as part of the order.
| Item | Product identity or published series option | What to specify |
|---|---|---|
| Connector | DC5.5 × 2.1 mm male | Mating-part reference and drawing |
| Series cable lengths | 20, 50, 100, 150, 200, 300 or 500 cm; customized lengths | One requested length and measurement endpoints |
| Series color | Black or customized | Requested color reference |
| Series outer sheath | PVC or rubber | Requested material, subject to configuration confirmation |
| Customization scope | Length, connector type, sheath color or material, packaging method | Required choices for the quotation |
Describe the route from the connector to your termination
Use your equipment layout to specify the cable route. Where should the male connector sit? Where should the other end reach? Will the cable pass through a defined opening, around an internal component or along a mounting surface? Put those questions on a simple marked drawing and identify any space that must remain accessible. Ask for the proposed cable dimensions before closing the layout.
Choose the length with a measurement convention, not just a number. Indicate whether your drawing measures between the connector tip and wire end or between other defined reference points. Add the tolerance you require and ask for it to be reviewed. If you need extra length for assembly access, show where that allowance belongs; do not assume that an unexplained allowance will be included in a quoted length.
The series lists custom lengths as well as its named options. A length request outside the list can therefore be part of the inquiry. Provide the dimension you actually need and ask for confirmation of the proposed configuration. For several equipment variants, attach a separate route sketch and length reference to each variant rather than combining them under a single loosely described cable item.
Write down polarity and wire-end requirements
Before ordering, ask your engineering team to define the intended contact-to-wire relationship. Include a wiring sketch and identify the viewing direction used in it. If the project uses wire colors or labels to identify connections, specify the required relationship explicitly and ask for written confirmation. Keep this instruction separate from the outer sheath color selection.
Treat electrical requirements as inputs to the quotation. State the operating conditions your assembly requires and ask which proposed construction can be confirmed for them. Do not select a rating from a visually similar cable or assume that the DC5521 designation settles the electrical specification. Where your project requires documentary evidence, list the document and the exact configuration it should cover in the inquiry.
At the wire end, ask what dimensions and preparation details need to appear on the drawing. For example, identify your intended connection method and request agreement on the exposed section, insulation endpoint and any termination requirement. Include those agreed details in the item description that your assembly and purchasing teams will use to review the quotation.
For a drawing that uses more than one view, give the connector and wire end consistent labels in every view. Ask your team to check whether the connection map, assembly sketch and item description use those labels in the same way. If your buyer will submit the inquiry on behalf of an engineer, identify who can answer drawing questions and include the preferred contact route. Keep the current specification in one shared reference, and mark superseded attachments clearly when you send a revision. A short change note can state which dimension or connection detail your team wants reviewed again, while leaving the rest of the request unchanged.
Turn customization choices into a clear request
Huajunxin's DC single-ended series lists customization of cable length, connector type, outer sheath color or material, and packaging method. Begin with the choice that affects your assembly drawing, then work through appearance and handling requirements. You can use the customization inquiry page to organize the request, share a drawing link in your message, or send your specification by email.
For color, state whether you are requesting black or a custom reference. If appearance must match another component, identify that component and explain how you intend to approve the match. For the sheath, identify the requested material and the conditions that your engineering team needs considered. Avoid substituting a broad phrase such as 'premium material' for a defined request.
Packaging is also a listed customization area. Describe the way you would like to receive and identify the cables: your item reference, the requested grouping and any handling instructions. Ask which packaging arrangement can be quoted. Keep required packaging separate from optional preferences so that a proposed alternative can be evaluated without changing the cable specification itself.
- Attach the current drawing and identify the DC5521 male connector.
- State length endpoints, wire-end preparation and the intended connection map.
- Select sheath material and color, or identify alternatives to quote separately.
- Provide requested quantity, packaging details and the date you need discussed.
Plan your sample review around the agreed configuration
If you request a sample, decide what your team needs to approve before the request is finalized. Consider reviewing the connector against your mating part, the cable against the intended route, and the wire end against your assembly instructions. Record the drawing revision used for that review. Ask any unresolved questions before treating a sample as the reference for an order.
Keep appearance checks and functional acceptance requirements distinct. Your team can specify which dimensions, connection relationships and other criteria it needs evaluated, together with the acceptance method. Ask what evidence will accompany the proposed supply. If your purchasing specification requires an inspection record, describe its scope and ask for the documentation arrangement to be agreed with the cable configuration.
When the configuration changes, identify the change explicitly. A revised length, color or termination request should have a clear revision reference, even if the connector remains DC5521 male. For incoming material, consider comparing the delivered item description and identification with the approved order and recording any discrepancy before releasing the cables to your assembly team.
Request a quotation for your DC5521 male pigtail
Browse the DC cable catalog if you are still deciding which connector configuration to request. Once the DC5521 male identity matches your project brief, send the drawing, required quantity and selected series options through contact. Include any unanswered questions beside the relevant drawing feature rather than leaving them in a separate, unreferenced message.
Ask for the proposed configuration and commercial terms to be stated together. If you need a sample stage, a planned order quantity or a delivery date considered, include those requests from the start. Quantity, price and timing need confirmation for your inquiry. A well-defined request gives both your purchasing and engineering teams the same description to review before placing an order.
Frequently asked questions
What connector configuration does this page cover?
This page covers the DC5.5 × 2.1 mm male pigtail identity within the DC single-ended series. Submit the mating-part reference and drawing with your inquiry so that the proposed dimensions and connection requirements can be checked for your assembly.
Can I request a length that is not in the series list?
Yes. The series lists customized cable lengths alongside 20, 50, 100, 150, 200, 300 and 500 cm options. State your required dimension and how it should be measured. Ask for the requested length to be confirmed for the complete configuration.
Are black, PVC and rubber fixed specifications for this item?
Black is a listed series color, with color customization also listed. PVC and rubber are series outer sheath options. Select the combination you want quoted; the option list should not be read as a final specification or an inventory statement.
What should I send if I only have an existing cable?
Send clear photographs, identify the mating component and mark the features you need retained or changed. Add your requested quantity and ask which dimensions or drawing details are still needed. Confirm those details before treating the existing cable as an agreed production reference.
