# 0.100" (2.54 mm) Female Header: 3x7-Pin, Straight

**Type:** Product page · **SKU:** POLOLU-1658 · **Brand:** [Pololu](https://core-electronics.com.au/brands/pololu-australia)
**Page:** https://core-electronics.com.au/0-100-2-54-mm-female-header-3x7-pin-straight.html ([markdown](https://core-electronics.com.au/0-100-2-54-mm-female-header-3x7-pin-straight.html.md))

This connector is a triple-row, 21-pin (3×7), straight female header strip designed to match 0.1" male headers...

## Pricing

- **Price:** $6.50 (inc GST) — $5.91 AUD, exc GST
- **Quantity discounts:** 10+ $5.67 (exc GST) · 25+ $5.49 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 17 and Aug 19.

## Description

These 0.1" straight female header strips are commonly used as low-cost connectors for custom-made cables or perforated [prototyping PCBs](https://core-electronics.com.au/prototyping/proto-boards.html). The standard spacing is the same as on most [solderless breadboards](https://core-electronics.com.au/prototyping/breadboards.html) and matches [0.1" male header strips](https://core-electronics.com.au/0-100-2-54-mm-breakaway-male-header-1x40-pin-straight.html). Pololu's female headers are available in a variety of commonly used pin counts.

Pololu also carries right-angle versions of some of these headers.

**Dimensions**

| ![](https://core-electronics.com.au/attachments/localcontent/0J10195_85153f67ade.png) |
|---|
| Dimensions for 0.1 " female headers in millimeters. |

**People often buy this product together with:**

| [![0.100" (2.54 mm) Female Header: 1x2-Pin, Straight](https://core-electronics.com.au/attachments/localcontent/0J879_2899a5dcf2.jpg)](https://core-electronics.com.au/0-100-2-54-mm-female-header-1x2-pin-straight.html) | [0.100" (2.54 mm) Female Header: 1x2-Pin, Straight](https://core-electronics.com.au/0-100-2-54-mm-female-header-1x2-pin-straight.html) |
|---|---|

| [![0.100" (2.54 mm) Female Header: 1x3-Pin, Straight](https://core-electronics.com.au/attachments/localcontent/0J880_297415676c.jpg)](https://core-electronics.com.au/0-100-2-54-mm-female-header-1x3-pin-straight.html) | [0.100" (2.54 mm) Female Header: 1x3-Pin, Straight](https://core-electronics.com.au/0-100-2-54-mm-female-header-1x3-pin-straight.html) |
|---|---|

| [![0.100" (2.54 mm) Female Header: 2x3-Pin, Straight](https://core-electronics.com.au/attachments/localcontent/0J892_3003fe4662.jpg)](https://core-electronics.com.au/0-100-2-54-mm-female-header-2x3-pin-straight.html) | [0.100" (2.54 mm) Female Header: 2x3-Pin, Straight](https://core-electronics.com.au/0-100-2-54-mm-female-header-2x3-pin-straight.html) |
|---|---|

**Dimensions**

| Pins: | 3 x 7 |
|---|---|
| Spacing: | 0.100 in |

**General specifications**

| Gender: | female |
|---|---|
| Pin type: | straight |
| Current rating: | 3 A |

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/i/m/image_5383.jpg)