Default Connector: PH2.0-2P (JST PH Series)
The PH2.0-2P connector is widely used for 3.7V lithium polymer batteries, compact electronic products, RC devices, GPS trackers, sensors, and small rechargeable battery packs. Before ordering a replacement battery, please confirm the connector type, pitch, pin count, wire length, and wire polarity.
Interactive 3D model of the JST PHR-2 housing, built from the manufacturer CAD file. Drag to rotate, scroll or pinch to zoom. Housing size 5.8 × 4.5 × 6.85 mm.
| Parameter | Value |
|---|---|
| Manufacturer | JST |
| Part Number | PHR-2 housing; PH-series connector |
| Application | Wire-to-board crimp style connector |
| Circuits | 2 pins |
| Pitch | 2.0 mm / 0.078 in |
| Crimp Terminal | SPH-002T-P0.5S, SPH-002T-P0.5L, SPH-004T-P0.5S |
| Applicable Wire Range | AWG 32 to AWG 24, depending on the selected PH crimp terminal and insulation diameter |
| Mating Parts | B2B-PH-K-S, S2B-PH-K-S |
| Datasheet | Download JST PH datasheet |
Primary source: JST PH Series datasheet. It specifies a 2.0 mm pitch and maps PHR housings, SPH crimp terminals, and compatible headers.
Other Available Battery Connectors
Small battery connectors can look similar, but the pitch, housing shape, and polarity may be different. Use the connector photos below as a reference when comparing your original battery. Four of the housings below also include an interactive 3D model built from the manufacturer CAD file, so you can rotate the part and check the locking side and terminal cavities against your own connector.
- JST PH Series — official pitch is 2.0 mm; PHR-2 is the 2-circuit housing.
- JST XH Series — official pitch is 2.5 mm.
- Molex 51021-0200 — 2-circuit housing with 1.25 mm mating-interface pitch.
- JST SH Series — 1.0 mm pitch.
- JST ZH Series — 1.5 mm pitch; ZHR-2 is the 2-circuit housing.
- Hirose DF61-2S-2.2C(11) — official 2-position socket page.
The interactive 3D models on this page were generated from manufacturer-published CAD files for the PHR-2, 51021-0200, XHP-2, SHR-02V-S-B, and ZHR-2 housings. Dimensions shown under each model are the overall housing bounding size measured from that CAD geometry.
How to Choose the Correct Battery Connector
| Check Item | What to Confirm |
|---|---|
| Connector pitch | Measure the distance between the center of the two pins. |
| Pin count | Confirm whether the connector is 2-pin, 3-pin, or another configuration. |
| Housing shape | Compare the shape and locking direction with your original battery connector. Rotate the interactive 3D models above to check the locking side and terminal cavities. |
| Wire polarity | Confirm positive and negative wire sequence before connecting the battery. |
| Wire length | Make sure the wire length and wire gauge fit your device assembly. |
Small Battery Connector FAQ
What is the pitch of a JST PH connector?
JST specifies the PH series at 2.0 mm pitch. Confirm the full housing, terminal, and mating-header part numbers rather than relying on appearance alone.
Is JST XH a 2.54 mm connector?
JST's official XH specification uses a 2.5 mm pitch. Some marketplace listings use 2.54 mm loosely, so verify the manufacturer part number and dimensions before ordering.
Can two similar-looking 2-pin connectors be interchanged?
Not safely by appearance alone. Confirm pitch, keying, pin count, mating direction, wire length, and polarity before connecting a replacement battery.
How do I use the 3D models on this page?
Drag to rotate, then scroll or pinch to zoom. Compare the locking side, the terminal cavity openings, and the overall proportions with your own connector. The models show the housing only, so also confirm pitch and polarity against the tables above.
Send us clear photos of the connector front, side, and wire sequence. Our team can help confirm the connector type and recommend a suitable replacement or custom battery pack.