# Pololu S7V8A step-up/step-down regulator (#2118) — board outline and 1 × 4 header holes

> What are the Pololu S7V8A regulator dimensions and header-hole positions?

- Category: Electronic components › Modules, sensors & displays
- Kind: Modern device
- Basis: Pololu's S7V8x dimension drawing and S7V8A product page (#2118).
- Page: https://xemstudio.com/objects/pololu-s7v8a-step-up-step-down-regulator/ · JSON: https://xemstudio.com/api/geometry?object=pololu-s7v8a-step-up-step-down-regulator · Plain text: https://xemstudio.com/objects/pololu-s7v8a-step-up-step-down-regulator/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); files CC BY 4.0 or their publisher's license
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## Overall (mm)

| length | width | height |
|---|---|---|
| 16.51 | 11.43 | 1.02 |

**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

- Exact nominal dimensions. PCB 11.43 × 16.51 × 1.02 mm (0.45 × 0.65 in), square corners; datum is the board centre, bottom on z=0.
- No mounting holes: the board mounts by one 1 × 4 header row (SHDN, VIN, GND, VOUT).
- Four header holes Ø1.02 on 2.54 mm pitch at x = −3.81, −1.27, +1.27, +3.81, y = −6.985 (1.27 mm from the short edge; outer holes 1.91 mm from the side edges).
- Components rise about 1.8 mm above the top face (2.82 mm total; Pololu lists 0.1 in / 3 mm overall): allow 3 mm height clearance. Components are not modelled.
- Same board for S7V8F3 (#2122) and S7V8F5 (#2123).

## 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 |
|---|---|---|---|---|
| header holes | 1 × 4, Ø1.02, 2.54 pitch, 1.27 from the short edge | 2.54 mm pin header, breadboard or carrier socket | designed | all |

## Sizes

| hole | x mm | y mm | diameter mm |
|---|---|---|---|
| 1 | -3.81 | -6.985 | 1.02 |
| 2 | -1.27 | -6.985 | 1.02 |
| 3 | 1.27 | -6.985 | 1.02 |
| 4 | 3.81 | -6.985 | 1.02 |

## Where the files are

- Pololu: [Pololu adjustable step-up/step-down regulator S7V8A (#2118)](https://www.pololu.com/product/2118) — web — Publisher's page; dimensions are facts
- Pololu: [S7V8x step-up/step-down regulator dimensions (PDF)](https://www.pololu.com/file/0J1442/s7v8x-step-up-step-down-voltage-regulator-dimensions.pdf) — web — Publisher's page; dimensions are facts
- Pololu: [S7V8A 3D model (STEP)](https://www.pololu.com/file/0J1373/pololu-adjustable-step-up_step-down-voltage-regulator-s7v8a.step) — web — Publisher's page; dimensions are facts

## Free STEP/STL (1 parts, CC BY 4.0, Xem Studio)

Index: https://xemstudio.com/files/hardware/pololu-s7v8a-step-up-step-down-regulator/index.json

- pololu-s7v8a-step-up-step-down-regulator: [STEP](https://xemstudio.com/files/hardware/pololu-s7v8a-step-up-step-down-regulator/pololu-s7v8a-step-up-step-down-regulator.step) · [STL](https://xemstudio.com/files/hardware/pololu-s7v8a-step-up-step-down-regulator/pololu-s7v8a-step-up-step-down-regulator.stl) — Pololu S7V8A step-up/step-down regulator (#2118) — board outline and 1 × 4 header holes

## Questions

**How big is the Pololu S7V8A?**

11.43 × 16.51 mm (0.45 × 0.65 in), 1.02 mm PCB, about 3 mm tall with components.

**Does the S7V8A have mounting holes?**

No. It has one 1 × 4 row of Ø1.02 mm holes on 2.54 mm pitch along a short edge.

**Are the S7V8F3 and S7V8F5 the same size?**

Yes, they use the same 11.43 × 16.51 mm board.

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