We shape the electronic component terminals to the geometry required by your board: distance between holes, height above the PCB, and insertion length. The component arrives straight or in its original packaging and is ready for manual or automatic insertion.<\/p>
It is the process with the highest volume in our history: more than 6.3 million shaped parts<\/strong> in 43 part numbers, for Tier-1 automotive and global EMS suppliers operating in Mexico. It is manufactured in our own plant, in ESD area with environmental control<\/strong>.<\/p>\n\n\n\n\n Axial components<\/strong> \u2014terminals that come out of both ends of the body\u2014 and radials<\/strong> \u2014terminals that depart from the same side and in parallel\u2014. Historically, the following have passed through this line:<\/p> And the operations that usually go with shaping:<\/p> Conforming is not about bending the pin where it suits you. The standard IPC J-STD-001<\/strong> It specifies that the fold must begin at a minimum distance from the body of the component: a terminal diameter, and never less than 0.8 mm<\/strong>.<\/p> The reason isn't aesthetic. Inside the component, the terminal is soldered or sealed to the body. Bending it too close transmits stress to that joint and can break the seal. It's damage that can't be seen.<\/strong>It passes the visual inspection, passes the electrical test, and appears months later in the field as an intermittent failure.<\/p> The other two limits that are monitored in each run:<\/p> When the preform is made by the assembly line itself using improvised tools, these three things are precisely what get overlooked. The cost doesn't appear in that run; it appears in the warranty return.<\/p>\n\n\n\n\n We work the same way High mix with low volume<\/strong> What sustained runs: the 6.3 million pieces of the historic one came from 43 part numbers, not from one.<\/p>\n\n\n\n\n\n\n\n\n\n We start with the circuit board drawing or physical sample: distance between holes, height of the component above the PCB, insertion length, and mounting orientation. If the component cannot be bent as required by the design without violating the minimum distance to the component, this is identified and an alternative is proposed.<\/p> Verification against specifications and inspection of terminal condition. Moisture-sensitive components undergo testing. baking and drying<\/a> in accordance with IPC\/JEDEC J-STD-033 if your MSL level requires it.<\/p> Use the tool and die specific to the geometry, not a universal tool. Hold the end piece, never the body. For complex geometries, forming is done in several steps, each with its own die.<\/p> When the design requires it, the terminal is cut to the insertion size after shaping, so that the reference is the fold and not the original end.<\/p> Verification of the geometry against the drawing and of the terminal status, combining automatic inspection with our system Eyve<\/a><\/strong>, based on AI vision, and visual verification<\/strong>.<\/p> The shaped component is packaged in protective packaging so that its geometry arrives intact at the insertion station. If the component requires it, in ESD bag<\/a> with desiccant<\/a> e humidity indicator<\/a>.<\/p>\n\n\n\n\n Send us the part number, quantity, and card drawing\u2014or a sample of the assembled component\u2014and we'll send you a proposal with the acceptance criteria that will be applied. Contact us<\/a>.<\/p>\n\n\n\n\n\n\n\n\n\n The electronics industry is highly regulated, and that works in the customer's favor: there's no need to negotiate what constitutes a well-made product; it's already defined. In this regard, the benchmarks are... IPC J-STD-001<\/strong>, which sets the limits of the shaping, and IPC-A-610<\/strong> for the visual acceptance criterion and the relief of effort.<\/p> Each operation is executed under the applicable standard \u2014IPC, JEDEC, EIA\u2014 and we have Certified personnel and internal IPC certifiers<\/strong>The formation and verification of the criteria do not depend on a third party.<\/p> We agree in Guadalajara<\/strong> (Tlaquepaque, Jalisco) and Quer\u00e9taro<\/strong> (The Colorado). The two plants provide national coverage and we have export capacity.<\/p>\n\n\n\n\n\n The preform almost never arrives alone. Before forming, the moisture-sensitive components go through baking and drying<\/a> to restore its MSL level. After that, most is delivered on tape and reel by taping of components<\/a>, ready to power the SMT line. And when the device has firmware, the microphone programming<\/a> It is done before assembly so as not to depend on test access in ICT.<\/p>\n\n\n\n\n\n What is the difference between preform, preformed and lead forming?<\/strong> Do they consist of axial and radial components?<\/strong> How far can a terminal be bent?<\/strong> Do you work with my drawing or do you need a sample?<\/strong> Is there a minimum order quantity?<\/strong> Do they handle emergencies?<\/strong> What happens after the preform?<\/strong>What we make up<\/h2>\n
The rule that decides if a preform is well made<\/h2>\n
When does it make sense to outsource it?<\/h2>\n
How do we do it?<\/h2>\n
1. Definition of geometry<\/h3>
2. Component preparation<\/h3>
3. Formed<\/h3>
4. Cut to length<\/h3>
5. Inspection<\/h3>
6. Packaging and delivery<\/h3>
Do you need to assemble components?<\/h3>
Acceptance criteria<\/h2>\n
What comes before and what comes after the preform<\/h2>\n
Frequently Asked Questions<\/h2>\n
None: they are the same process with three names. Lead forming<\/em> It is the English term, and in the plant, preform and preformed are used interchangeably.<\/p>
Yes, both. The axial type has the terminals on opposite ends of the body and almost always needs bending to fit into two separate holes; the radial type has them on the same side and usually needs less bending but more precise alignment.<\/p>
The bend must start at least one body terminal diameter away, and never less than 0.8 mm, according to IPC J-STD-001. Beneath that distance, the internal seal of the component is at risk.<\/p>
Either one will work. If you have the circuit board diagram, that's where you get the distance between holes and the height; if you only have the physical sample of the assembled component, that also serves as a reference.<\/p>
We treat a short, high-mix run the same as a sustained volume run. What we evaluate is the geometry, not the quantity.<\/p>
Yes. That's part of what outsourcing is for: absorbing the peak demand that your capacity can't handle.<\/p>
It depends on the destination. If the component is going to be fed automatically, it is usually delivered by taped on carrier tape<\/a>. If it has firmware, the programming<\/a> It is done before assembly. The preform is one of the thirteen operations in the catalog of value-added services<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":279,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"pagelayer_contact_templates":[],"_pagelayer_content":"","footnotes":""},"class_list":["post-275","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/sbcgroup.com.mx\/en\/wp-json\/wp\/v2\/pages\/275","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sbcgroup.com.mx\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sbcgroup.com.mx\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sbcgroup.com.mx\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sbcgroup.com.mx\/en\/wp-json\/wp\/v2\/comments?post=275"}],"version-history":[{"count":8,"href":"https:\/\/sbcgroup.com.mx\/en\/wp-json\/wp\/v2\/pages\/275\/revisions"}],"predecessor-version":[{"id":2541,"href":"https:\/\/sbcgroup.com.mx\/en\/wp-json\/wp\/v2\/pages\/275\/revisions\/2541"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sbcgroup.com.mx\/en\/wp-json\/wp\/v2\/media\/279"}],"wp:attachment":[{"href":"https:\/\/sbcgroup.com.mx\/en\/wp-json\/wp\/v2\/media?parent=275"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}