SUPU Tier-1 Jarwey｜Push-button PCB terminal 435304 vs screw terminal 450612
Jarwey is a SUPU Tier-1 distributor and can help with shortlisting, datasheets, samples, small lots, and lead time.
Once the wire is committed to the board edge, the next split is how that wire is released. 435304 (4 positions) and 435318 (18 positions) are the push-button spring side. The 450612 photo shows a row of screw heads over the wire entries, and the package line is 5.0 mm, 12 positions. DIN-rail parts 241202 / 241203 / 241204 already have their own placement article; this note does not rebuild that pole table.
None of these three product pages carries a datasheet. Ask Jarwey for the datasheet. The table below uses only text and photos that are on the pages. Where current or wire range is missing, it is not borrowed from the neighbor.
Push-button spring versus screw clamp
| Part | Clamp, from the page | What the page states | Do not copy across | Page |
|---|---|---|---|---|
| 435304 | Push-button spring. The long text says press-to-wire | Name line: 3.5 mm, 4 pin. Long text also says 3.81 mm, 0.14–1.5 mm², 10 A / 320 V | The two pitch figures disagree. Layout follows the datasheet drawing | 537 |
| 435318 | Same push-button spring photo as 435304. The body text does not restate the clamp | 3.5 mm, 18 pin. Listed as a WAGO 734-178 class counterpart | No current or wire range on the page. Do not reuse 10 A / 320 V | 526 |
| 450612 | Photo shows screw heads over wire slots, not the orange button | 5.0 mm, 12 pin. Description is only the brand name | No current, voltage, wire range, or WAGO number on the page | 531 |
The 435304 long text names WAGO 734-104 / 734-164 and includes the phrases “no PCB change” and “no electrical risk after swap.” Treat those as page copy. Pitch, pin length, hole size, retention, and temperature rise still have to be checked on the drawing and on a sample.
Release method first, pin count second
Push-button. If the harness is opened by pressing a button, choose by pin count: 435304 for 4 positions, 435318 for 18. The shared photo is a spring body; the positions visible in that photo are not the orderable count. 435318 is anchored only to the 734-178 class. It does not inherit the wire range or the current written on 435304.
Screw. If service is a screwdriver and the footprint is already 5.0 mm, look at 450612. It does not share a pad set with the 3.5 mm spring family. The page has no WAGO number. Do not invent a 734 code for it.
Cabinet rail versus board edge is covered in the earlier note, 2.5 mm DIN rail terminals versus PCB terminals. That split does not answer the clamp question.
Checklist before you order (7)
- How the wire comes out: button release points to 435304 or 435318; a screwdriver on a 5.0 mm footprint points to 450612.
- Positions: order 4, 18, and 12 as separate lines. Do not cut poles or gang blocks to fake a count.
- Pitch drawing: 435304 is named 3.5 mm and described as 3.81 mm. Neither figure is a pad layout by itself. Ask Jarwey for the drawing of pitch, pin length, and hole size. 450612 is 5.0 mm.
- Ratings: only 435304 states 0.14–1.5 mm² and 10 A / 320 V. Request separate datasheets for 435318 and 450612.
- Counterpart scope: 734-104 / 734-164 is the evaluation anchor for 435304 only; 734-178 is the anchor for 435318 only. Measure before any BOM swap.
- Wire: solid versus stranded, strip length, and screw torque come from that part’s datasheet. A spring-block strip length does not transfer to the screw block.
- Sample: get the datasheet from Jarwey, build with the real wire gauge, and check pull-out and temperature rise before the BOM changes.
Datasheet and quote
Shortlist, application support, samples, and lead time: Jarwey · SUPU Tier-1 distributor · kerry.w@jarwey.cn · Contact.
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