JST SH 1.0mm Connector: Complete Guide to Specs, Pinout, Crimping & Applications
The JST SH connector is the smallest and most compact connector in the JST wire-to-board lineup. With a 1.0mm pitch, it is the standard connector for FPV drone builds, Pixhawk flight controllers, wearable electronics, and any application where board space is at an absolute premium. If you've built a micro FPV quad, connected a GPS module to a Pixhawk, or worked with a compact IoT sensor board, you've almost certainly used a JST SH connector.
This guide covers everything: full specifications, all pin configurations from 2 to 15 pin, crimp tool selection, how to release and remove terminals without damage, comparison with JST PH, GH, and XH, and answers to every common question from engineers and hobbyists. Ready to source? Shop JST SH 1.0mm connectors at Keszoox.
What Is a JST SH Connector?
The JST SH is an ultra-compact wire-to-board connector series manufactured by JST (Japan Solderless Terminal). It features a 1.0mm pitch — the smallest pitch in the mainstream JST lineup — and uses SMD (surface-mount) PCB headers, making it ideal for compact, high-density PCB designs where through-hole connectors would take up too much space.
The SH series consists of three main components:
- SHR housing (plug) — wire-side connector, 2–15 pin configurations
- BM-SRSS SMD PCB header (receptacle) — PCB-side surface-mount component
- SSH-003T crimp terminal — gold-plated brass contact crimped onto each wire
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JST SH 1.0mm Connector Specifications
| Parameter | Specification |
|---|---|
| Pitch | 1.0 mm |
| Current rating | 1A per contact |
| Voltage rating | 50V AC/DC |
| Contact resistance | Max 30 mΩ |
| Insulation resistance | Min 1000 MΩ |
| Withstanding voltage | 500V AC/min |
| Operating temperature | −25°C to +85°C |
| Wire gauge | AWG 28–32 |
| Wire insulation OD | 0.5–0.9 mm |
| Pin count | 2–15 positions |
| Housing material | PA66 Nylon, UL94V-0 |
| Contact material | Brass, gold-plated |
| Mount type | SMD (surface mount) only |
| Locking | Side latch |
| Mating cycles | 30 minimum |
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JST SH Pin Configurations: 2 to 15 Pin
The JST SH series is available in 2 through 15 pin configurations. Complete reference for every pin count:
| Pin Count | Housing Part No. | Header Part No. (SMD) | Width (approx.) | Common Use |
|---|---|---|---|---|
| 2 pin | SHR-02V-S | BM02B-SRSS-TB | 3.0 mm | Power, battery, simple sensors |
| 3 pin | SHR-03V-S | BM03B-SRSS-TB | 4.0 mm | I2C, UART, servo signal |
| 4 pin | SHR-04V-S | BM04B-SRSS-TB | 5.0 mm | I2C with power, SPI, UART+power |
| 5 pin | SHR-05V-S | BM05B-SRSS-TB | 6.0 mm | GPS modules, telemetry, FPV VTX |
| 6 pin | SHR-06V-S | BM06B-SRSS-TB | 7.0 mm | Pixhawk TELEM, CAN bus, GPS |
| 7 pin | SHR-07V-S | BM07B-SRSS-TB | 8.0 mm | Multi-signal harnesses |
| 8 pin | SHR-08V-S | BM08B-SRSS-TB | 9.0 mm | ESC telemetry, multi-channel |
| 10 pin | SHR-10V-S | BM10B-SRSS-TB | 11.0 mm | Complex sensor arrays |
| 15 pin | SHR-15V-S | BM15B-SRSS-TB | 16.0 mm | High-density harnesses |
➡️ Shop JST SH 2-pin / 4-pin / 6-pin Pre-Crimped Cables
JST SH Pinout
JST SH connectors are polarized — the housing has a side latch that only allows mating in one orientation. Pin 1 is marked on the PCB header with a small dot or square pad.
| Application | Pins | Pin 1 | Pin 2 | Pin 3 | Pin 4 | Pin 5+ |
|---|---|---|---|---|---|---|
| Power / battery | 2 | GND | VCC | — | — | — |
| I2C sensor | 4 | GND | VCC | SDA | SCL | — |
| UART | 4 | GND | VCC | TX | RX | — |
| Pixhawk GPS | 6 | VCC | TX | RX | SCL | SDA / GND |
| Pixhawk TELEM | 6 | VCC | TX | RX | CTS | RTS / GND |
| FPV VTX | 5 | GND | VCC | Video | Audio | RSSI |
Important: Pixhawk and ArduPilot pinouts vary by manufacturer and firmware version. Always verify against your specific flight controller's documentation before wiring.
JST SH vs JST GH: Key Differences
JST SH (1.0mm) and JST GH (1.25mm) are the two most commonly confused ultra-compact JST series. Both use SMD headers and are popular in FPV and drone applications, but they are not interchangeable.
| Feature | JST SH | JST GH |
|---|---|---|
| Pitch | 1.0 mm | 1.25 mm |
| Current rating | 1A per contact | 1A per contact |
| Wire gauge | AWG 28–32 | AWG 28–32 |
| Mount type | SMD only | SMD only |
| Pixhawk standard? | Some peripherals | Yes — main standard |
| FPV micro builds | Yes — most common | Less common |
| Interchangeable? | No — different pitch, will not mate | |
How to Tell JST SH from JST GH
- Pitch check: SH contacts are 1.0mm apart; GH contacts are 1.25mm apart. Use a caliper or count contacts across a known width.
- Housing width: A 4-pin SH housing is approximately 5.0mm wide; a 4-pin GH housing is approximately 6.25mm wide.
- Application: If it came with a Pixhawk GPS or telemetry cable, it's almost certainly GH. If it came with a micro FPV ESC or receiver, it's likely SH.
➡️ Shop JST SH 1.0mm | Shop JST GH 1.25mm
JST SH vs JST PH: Key Differences
| Feature | JST SH | JST PH |
|---|---|---|
| Pitch | 1.0 mm | 2.0 mm |
| Current rating | 1A per contact | 2A per contact |
| Wire gauge | AWG 28–32 | AWG 24–32 |
| Mount type | SMD only | Through-hole |
| Common use | FPV drones, Pixhawk, wearables | LiPo batteries, Arduino sensors |
| Interchangeable? | No — completely different size | |
➡️ JST PH 2.0mm Complete Guide | Shop JST SH 1.0mm
JST SH vs JST XH: Key Differences
| Feature | JST SH | JST XH |
|---|---|---|
| Pitch | 1.0 mm | 2.5 mm |
| Current rating | 1A per contact | 3A per contact |
| Wire gauge | AWG 28–32 | AWG 22–28 |
| Mount type | SMD only | Through-hole |
| Common use | FPV drones, wearables | 3D printers, RC balance plugs |
| Interchangeable? | No — completely different size | |
➡️ JST XH 2.5mm Complete Guide
JST SH in FPV Drones
The JST SH 1.0mm connector is the dominant connector for micro and nano FPV drone builds. Common uses:
- ESC signal wires — connecting flight controller to ESC on 1S–2S micro builds
- VTX connections — video transmitter power and video signal on whoop-class builds
- Camera wiring — FPV camera power and video on micro frames
- Receiver connections — ELRS, Crossfire, and FrSky micro receivers
- LED connections — addressable LED strips on micro builds
Most common pin counts in FPV: 4-pin (UART), 5-pin (VTX), 6-pin (GPS/telemetry).
➡️ Shop JST SH 1.0mm Pre-Crimped Cables for FPV Builds
JST SH in Pixhawk & ArduPilot
While JST GH (1.25mm) is the primary Pixhawk connector standard, JST SH appears on some Pixhawk-compatible peripherals and compact autopilot boards. The Pixhawk 6C Mini, Holybro Kakute, and several compact ArduPilot boards use SH connectors for some peripheral connections. Always check your specific board's connector specification before ordering cables.
➡️ Shop JST GH 1.25mm — Pixhawk Standard Connector
How to Crimp JST SH Connectors
What Crimper Do I Need for JST SH?
The JST SH uses the SSH-003T terminal, one of the smallest crimp terminals in common use. Recommended crimpers:
- Engineer PA-09 — most popular for hobbyists; handles AWG 28–32, works well with SSH-003T with practice
- IWISS SN-2549 — budget-friendly with dedicated dies for 1.0mm pitch terminals
- JST YRS-898 / YRF-898 — professional ratchet tool for production environments
- Hozan P-706 — popular in Japan, excellent for ultra-fine pitch terminals
Note: Generic pliers will not produce reliable crimps on SSH-003T terminals. For low-volume work, buying pre-crimped assemblies is often more practical.
Step-by-Step JST SH Crimping
- Strip 1.0–1.2mm of insulation — less than for larger JST series
- Twist conductor strands tightly to prevent fraying
- Place the SSH-003T terminal in the PA-09 die at the smallest AWG position (AWG 30–32)
- Insert wire so conductor sits in the front (conductor) wings and insulation sits in the rear (insulation) wings
- Squeeze firmly until the ratchet releases
- Pull-test: tug the wire firmly — it should not move
- Insert terminal into SHR housing from the rear until it clicks — you will feel a distinct snap
➡️ Full JST Crimping Guide with step-by-step photos | Shop JST SH Pre-Crimped Cables
How to Release JST SH Terminals
This is one of the most searched questions for JST SH connectors — and one of the most frustrating tasks for anyone new to 1.0mm pitch connectors.
How to Remove a Terminal from a JST SH Housing
- Look into the open end of the SHR housing — you will see a small plastic retention tab holding each terminal in place
- Use a fine-tipped tool — a dental pick, a sharpened toothpick, or a JST extraction tool — to gently depress the retention tab
- While holding the tab depressed, pull the wire from the rear of the housing
- The terminal will slide out without damage if the tab is fully depressed
Tips to avoid damage:
- Never pull the wire without depressing the tab — you will either break the tab or pull the terminal wings off the wire
- Work under magnification if possible — the retention tab is approximately 0.5mm wide
- A JST SH extraction tool makes this process much easier and prevents housing damage
- If the terminal won't release, check that you're pressing the tab on the correct side — it faces the open end of the housing
How to Disconnect a JST SH Connector from a PCB Header
Press the side latch inward while pulling the housing straight back. Always grip the housing body — never pull by the wires. Pulling by wires on 1.0mm pitch connectors is the most common cause of terminal damage.
JST SH Connector Part Numbers
| Part Number | Description |
|---|---|
| SHR-02V-S | 2-pin plug housing |
| SHR-03V-S | 3-pin plug housing |
| SHR-04V-S | 4-pin plug housing |
| SHR-05V-S | 5-pin plug housing |
| SHR-06V-S | 6-pin plug housing |
| BM02B-SRSS-TB | 2-pin SMD header |
| BM03B-SRSS-TB | 3-pin SMD header |
| BM04B-SRSS-TB | 4-pin SMD header |
| BM06B-SRSS-TB | 6-pin SMD header |
| SSH-003T-P0.2 | Crimp terminal (AWG 28–32) |
➡️ Shop JST SH 1.0mm Connector Kits — Housings, Terminals & Headers
Frequently Asked Questions
What is a JST SH connector? The JST SH is a 1.0mm pitch ultra-compact wire-to-board connector made by JST (Japan Solderless Terminal). It is the standard connector for FPV micro drones, wearable electronics, and compact IoT sensor boards. Rated for 1A per contact, AWG 28–32 wire, SMD mount only. The system uses SHR plug housings, BM-SRSS SMD headers, and SSH-003T gold-plated crimp terminals.
What does SH stand for in JST SH? SH is a JST internal series designation — it does not stand for a specific English phrase. The SH series is defined by its 1.0mm pitch and SMD mounting style, similar to how PH, GH, XH, and ZH are internal JST series codes.
What is the difference between JST SH and JST GH? JST SH uses 1.0mm pitch; JST GH uses 1.25mm pitch. Both are SMD-only and rated for 1A. SH is the standard for micro FPV drone builds; GH is the Pixhawk standard for GPS and telemetry connections. They are not interchangeable.
What is the difference between JST SH and JST PH? JST SH is 1.0mm pitch, SMD-only, rated 1A. JST PH is 2.0mm pitch, through-hole, rated 2A. SH is used for FPV drones and wearables; PH is used for LiPo batteries and Arduino sensors. Not interchangeable.
What crimper do I need for JST SH? The Engineer PA-09 or IWISS SN-2549 crimper with SSH-003T terminals. Strip only 1.0–1.2mm of insulation. For low-volume work, buying pre-crimped assemblies is often more practical than investing in a precision crimper.
How do I release JST SH terminals? Insert a fine-tipped tool (dental pick or JST extraction tool) into the open end of the SHR housing to depress the retention tab on the terminal. While holding the tab depressed, pull the wire from the rear. Never pull without depressing the tab — you will damage the housing or terminal.
How do I disconnect a JST SH connector? Press the side latch inward while pulling the housing straight back. Always grip the housing body — never pull by the wires.
What wire gauge does JST SH use? JST SH accepts AWG 28–32 wire. AWG 28 is the most common choice for FPV and drone wiring. Avoid wire thicker than AWG 28 — it will not fit the SSH-003T terminal or the SHR housing correctly.
What is a JST SH 4-pin connector? A JST SH 4-pin connector uses the SHR-04V-S housing and BM04B-SRSS-TB SMD header. One of the most common SH configurations, used for I2C (GND/VCC/SDA/SCL) and UART (GND/VCC/TX/RX) connections on FPV flight controllers and compact PCB designs.
What is a JST SH 6-pin connector? A JST SH 6-pin connector uses the SHR-06V-S housing and BM06B-SRSS-TB SMD header. Commonly used for Pixhawk-compatible GPS modules (VCC/TX/RX/SCL/SDA/GND) and telemetry connections on compact autopilot boards.
What is the JST SH 1.0mm pitch? The JST SH connector has a 1.0mm contact pitch — the center-to-center distance between adjacent contacts is exactly 1.0mm. This is the smallest pitch in the mainstream JST lineup, making SH the most compact option for wire-to-board connections.
What is a JST SH pigtail? A JST SH pigtail is a pre-crimped cable assembly with an SHR housing on one end and bare wire leads on the other. Available in 2–10 pin configurations and multiple lengths at Keszoox.
Shop JST SH 1.0mm Connectors at Keszoox
Keszoox stocks the complete JST SH range — housings, crimp terminals, SMD PCB headers, and pre-crimped cable assemblies in all pin counts from 2 to 15, ready to ship worldwide.
- JST SH 1.0mm Connector Housings, Headers & Terminals
- JST SH 1.0mm Pre-Crimped Cable Assemblies (2–10 pin)
- JST SH Connector Kits
Related guides: How to Crimp JST Connectors | How to Identify JST Connectors | JST PH 2.0mm Complete Guide | JST XH 2.5mm Complete Guide | Wire-to-Board Connector Types Guide