# FASTON-type quick-connect tabs: 4.8 mm (.187) and 6.35 mm (.250) tab width and thickness (IEC 61210)

> What are the width and thickness of a 4.8 mm, 6.3 mm (1/4 in) FASTON quick-connect tab and what wire does the receptacle take?

- Category: Electronics › Wiring & connectors
- Kind: Standard part
- Basis: TE 4.8 mm FASTON guide plus RS listings of TE parts and Omron terminal thickness; only labelled values used; 2.8 and 9.5 mm not read
- Page: https://xemstudio.com/objects/faston-quick-connect-tabs/ · JSON: https://xemstudio.com/api/geometry?object=faston-quick-connect-tabs · Plain text: https://xemstudio.com/objects/faston-quick-connect-tabs/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); files CC BY 4.0 or their publisher's license
- Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/)

**Exact dimensions.** Every file is drawn at true size with no tolerance added. The holes and pins that meet another part are listed below under Mating features, with the fit each joint needs; open those by your process's clearance before making the part.

## Notes

- FASTON is TE's name for the flat blade (tab) and receptacle quick-connect system; the same sizes are sold by many makers under 'quick disconnect', 'spade', 'blade' and 'push-on' names. TE's 4.8 mm guide cites IEC 61210 (VDE 613) for the tab. The 4.8 mm (.187) tab comes in 0.81 mm (0.032 in) and 0.51 mm (0.020 in) thickness; the 6.35 mm (.250) tab is listed at 0.81 and 0.83 mm.
- Metric 6.3 mm and imperial .250 in are the same tab family: TE prints 6.35 mm, one RS listing of a TE receptacle says 6.3 mm. Thickness 0.8 is a rounding of 0.81. Both are shown as read.
- Left out: the 2.8 mm (.110) and 9.5 mm (.375) tabs and the detent hole / dimple sizes: no readable labelled table was reached for them. The IEC 61210 text itself was not read (paywalled); use the tab and receptacle drawings of the part you buy.
- McMaster-Carr's quick-disconnect category and electrical quick-connects category (free STEP/IGES per part) are linked below.
- No files: a tab is a flat strip and the detent geometry is not published in the pages read.

## Mating features (exact size; open press / slide / run / socket by your process clearance, leave designed and clamp as drawn)

| feature | exact | mates with | fit | files |
|---|---|---|---|---|
| 4.8 mm (.187) FASTON tab | 4.8 wide × 0.81 or 0.51 thick | 4.8 mm FASTON receptacle (15 mm long) | slide | all |
| 6.35 mm (.250) FASTON tab | 6.35 wide × 0.81 or 0.83 thick | .250 FASTON receptacle (TE) | slide | all |

## Sizes

| tab size | tab width × thickness, mm | source | note |
|---|---|---|---|
| 4.8 mm (.187 in) | 4.8 × 0.81 (0.032 in) and 4.8 × 0.51 (0.020 in) | TE 4.8 mm FASTON receptacle quick reference guide (IEC 61210) | receptacle length 15 mm (0.59 in); wire 0.5 to 1.5 mm² (20-16 AWG) and 1.0 to 2.5 mm² (17-14 AWG) |
| 4.8 mm (.187 in) | 4.8 × 0.8 and 4.8 × 0.5 | RS listings of TE PCB tabs | same two thicknesses as TE's guide, rounded |
| 6.35 mm (.250 in) | 6.35 × 0.81 and 6.35 × 0.83 | RS listings of TE PCB tabs | two thicknesses seen on different parts; sources differ by 0.02 mm |
| 6.3 mm | 6.3 (thickness not stated) | RS listing of a TE grey uninsulated crimp receptacle | 18-14 AWG; 'tab size 6.3 mm' |
| #187 (Omron V-series terminals) | t = 0.5 | Omron V data sheet copies | thickness of the #187 switch terminal; width printed as '.187 in (4.7 mm)' in the spec list |

## Where the files are

- TE Connectivity: [4.8 mm FASTON receptacles quick reference guide: tab 4.8 mm, 0.81 / 0.51 mm thick, IEC 61210](https://www.te.com/content/dam/te-com/documents/appliances/global/4.8mm-faston-receptacles-qrg.pdf) — web — Publisher's page; dimensions are facts
- RS (TE FASTON listing): [FASTON .187 PCB tab 4.8 x 0.8 mm](https://uk.rs-online.com/web/p/spade-connectors/1639917) — web — Publisher's page; dimensions are facts
- RS (TE FASTON listing): [FASTON .187 PCB tab 4.8 x 0.5 mm](https://uk.rs-online.com/web/p/spade-connectors/6805927P) — web — Publisher's page; dimensions are facts
- RS (TE FASTON listing): [FASTON .250 PCB tab 6.35 x 0.81 mm](https://uk.rs-online.com/web/p/spade-connectors/7188047P) — web — Publisher's page; dimensions are facts
- RS (TE FASTON listing): [FASTON .250 PCB tab 6.35 x 0.83 mm](https://uk.rs-online.com/web/p/spade-connectors/6831500) — web — Publisher's page; dimensions are facts
- RS (TE FASTON listing): [FASTON grey uninsulated male crimp tab, 6.3 mm tab size, 18 to 14 AWG](https://uk.rs-online.com/web/p/spade-connectors/0795384) — web — Publisher's page; dimensions are facts
- Omron (leocom copy): [V series data sheet: #187 quick-connect, t = 0.5, 3.1 mounting holes](https://lh.pe/file/v_series.pdf) — web — Publisher's page; dimensions are facts
- McMaster-Carr: [Quick-disconnect terminals (free STEP/IGES per part, for your own design use; no redistribution)](https://www.mcmaster.com/products/terminals/ul-file-number~e79133) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution (verify at link)
- McMaster-Carr: [Electrical quick connects (free STEP/IGES per part, for your own design use; no redistribution)](https://mcmaster.com/products/electrical-quick-connects) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution (verify at link)

## Questions

**How wide is a 1/4 in FASTON tab?**

6.35 mm (.250 in), 0.81 mm (some parts 0.83 mm) thick.

**How wide is a .187 FASTON tab?**

4.8 mm wide, 0.81 mm or 0.51 mm thick (TE, IEC 61210).

**What wire does a 4.8 mm FASTON receptacle take?**

TE lists 0.5 to 1.5 mm² (20-16 AWG) and 1.0 to 2.5 mm² (17-14 AWG).

## Fits with

- [Ring tongue terminals by stud size and wire gauge: W and L for #2 to 3/4 in studs, 26-24 to 12-10 AWG (TE table)](https://xemstudio.com/objects/ring-tongue-terminals-by-stud-and-wire/)
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