For surface-mount PCB designs, the HFHYDZSW connector is the clearest fit because it is specified for surface-mount reflow soldering. The other options include loose pogo pins or through-hole parts, which may suit prototyping, testing, or other board layouts but are not direct surface-mount replacements. Compare contact style, pin count, pitch, and mounting method before choosing.
| Product | Best suited for | Mounting or format |
|---|---|---|
| HFHYDZSW 2.5 mm pitch connector | Surface-mount PCB assemblies | Surface mount, reflow solder |
| 100-piece 4.3 mm pogo pins | Projects needing loose contacts | Individual pins; mounting details not specified |
| Treedix 6-pin, 7.5 mm pogo header | Through-hole header layouts | Through-hole |
| Treedix 30-piece pogo pins | Probing and signal-contact projects | Through-hole PCB pin |
| Mill-Max 3-position header | Compact through-hole connections | Through-hole; not specified as spring-loaded |
HFHYDZSW 2.5 Mm Pitch Surface-Mount Connector
This is the strongest match for a buyer specifically searching for surface-mount pogo-pin contacts. The listing describes a spring compression contact connector with a 2.5 mm pitch, reflow soldering, and a 4.2 mm height. The listed variant is a two-pin connector supplied as a 10-piece pack.
Best for: PCB designers who want a grouped spring-contact connector designed for surface-mount reflow assembly. It was selected because the listing explicitly identifies its mounting method, unlike the loose-pin and through-hole options below.
Check before ordering: Confirm that the two-pin configuration, 2.5 mm pitch, and stated height match the board footprint. The product name mentions other pin counts, but the supplied listing specifies the two-pin, 10-piece option.
100-Piece 4.3 Mm Gold-Plated Pogo Pins
This pack contains 100 individual gold-plated copper spring pogo pins. Listed dimensions include a total length of 4.3 mm, a 1 mm needle, a 2.5 mm tube, a 0.8 mm tail length, and a 0.8 mm tail diameter. The listing describes uses such as PCB testing, electronic-device maintenance, and signal transmission projects.
Best for: Builders who need a quantity of individual contacts for experiments, repair work, or custom assemblies. It offers more loose pins than the packaged connector options.
Check before ordering: This listing does not specify a surface-mount footprint or a ready-to-solder connector housing. Verify how the pins will be held and connected in your design rather than assuming they can be placed directly as SMT components.
Treedix 6-Pin, 7.5 Mm Pogo Header
The Treedix connector is a six-pin male spring-loaded header described as a through-hole PCB part. Its listed total length is 7.5 mm, with a 2 mm needle and 5.5 mm tube. The listing also identifies gold plating and describes the part as a thimble pogo-pin header target connector.
Best for: Users whose board layout calls for a six-position through-hole header rather than a surface-mount connector. It was selected as a multi-contact spring-loaded alternative with specified dimensions.
Check before ordering: This is identified as through-hole, so it is not the right choice when the PCB requires a surface-mount footprint. Confirm the pin arrangement and board-hole dimensions for the intended design.
Treedix 30-Piece Gold-Plated Pogo Pins
This 30-piece set is described as copper, gold-plated spring-loaded pogo pins for use as test pins, signal pins, or thimble contacts. The listing highlights a flat-bottom design intended to make welding easier and gives the part a 2 mm diameter and 6 mm height.
Best for: Projects that need several individual contacts for probing, signal connections, or PCB work and can use the listed pin form. The flat bottom and pack quantity distinguish it from a packaged multi-pin connector.
Check before ordering: The listing identifies this as a through-hole PCB test pin, not a surface-mount connector. Confirm the mounting approach and dimensions before adding it to an SMT-only board design.
Mill-Max 3-Position, 1.27 Mm Header
This Mill-Max part is a three-contact, single-row header with 1.27 mm pitch, gold-plated copper-alloy contacts, and through-hole termination. The supplied specifications identify it as a header, but do not describe it as a spring-loaded pogo-pin connector.
Best for: Buyers comparing compact, close-pitch through-hole headers or considering a non-pogo connection for a related board project. It was included as a clearly labeled alternative, not as a direct surface-mount pogo-pin match.
Check before ordering: Avoid this part if the design requires spring-loaded contacts or surface-mount termination; neither is specified in the supplied product details.
Buying Guide
Does the board need surface-mount or through-hole contacts?
Choose a connector explicitly labeled surface mount when the PCB uses SMT pads and reflow assembly. The HFHYDZSW listing is the only option here that clearly specifies surface-mount reflow soldering. The Treedix parts and Mill-Max header are identified as through-hole, so they require a compatible hole-based layout.
Should you choose a connector or loose pogo pins?
A packaged connector gives you a defined pin count and pitch, which can simplify footprint planning. Loose pins provide flexibility for custom arrangements, but the supplied listings do not establish a ready-made SMT footprint for them. Account for the mechanical support and soldering method before selecting individual contacts.
Which dimensions should you verify?
Check pitch, pin count, contact height, total length, pin or tail diameter, and the PCB footprint. Compare those measurements with the design files or the mating contact arrangement. Do not assume that similar-looking pogo pins share the same dimensions or mounting requirements.
When does plating or pack quantity matter?
The listed options include gold-plated contacts, and two listings describe copper or copper-alloy materials. Match the contact material and plating to the project requirements without treating those details as a substitute for verifying electrical and mechanical specifications. Pack size also matters: select a single connector, a small header pack, or a larger loose-pin quantity according to the build.
Frequently Asked Questions
Which listed product is specifically surface mount?
The HFHYDZSW 2.5 mm pitch spring compression connector is explicitly described as surface mount and suitable for reflow soldering.
Are all pogo pins in this list surface mount?
No. Several listings specify through-hole pins or headers. The loose-pin listing does not provide enough mounting detail to confirm that it is a surface-mount part.
What does 2.5 mm pitch mean?
Pitch is the spacing between adjacent contacts in a connector. Confirm that the listed 2.5 mm spacing matches the PCB footprint and the mating component.
Can the Mill-Max header replace a pogo-pin connector?
Not as a like-for-like replacement based on the supplied details. It is listed as a through-hole header, and spring loading is not specified.
What should be checked before ordering?
Verify mounting style, contact count, pitch, dimensions, and the board footprint. For loose pins, also determine how they will be mechanically positioned and electrically connected.