Specifications
| Pitch | 3.0 mm |
|---|---|
| Contacts | 2–24 |
| Rows | one or two |
| Current per contact | 8.5 A |
| Voltage | 600 V |
| Wire | AWG 30–18 |
| Latch | yes, a tab to press |
| Mating | wire-to-board and wire-to-wire |
| Maker | Molex |
| Housing | 43025 · 43020 |
| Contact | 43030 · 43031 |
| Board header | 43045 · 43650 |
Lookalikes and how to tell them apart
3.0 mm pitch and a positive latch, in one or two rows. Mini-Fit Jr looks the same but is larger (4.2 mm): measure.
| Connector | Pitch | Latch | Per contact |
|---|---|---|---|
| Molex Micro-Fit 3.0 | 3.0 mm | yes, a tab to press | 8.5 A |
| Molex Mini-Fit Jr | 4.2 mm | yes, a tab to press | 9 A |
| JST VH | 3.96 mm | yes, a tab to press | 10 A |
Before you plug it in
Inside appliances and power supplies these connectors can carry mains voltage. Unplug the device and wait for the capacitors to discharge before you touch them.
Crimp terminals need the crimper die made for their size: pliers crush them and the contact works loose. Housings and terminals of different series don’t mix, even at the same pitch.
The current rating is a maximum per contact, at the wire size the maker states. With thinner wire, or with every contact carrying current, stay well below it.
Open the connector identifier →Not sure it is this one? Enter the pitch, the contacts and where you found it: the identifier compares 22 connector families.
Other connectors
JST SH JST GH Molex PicoBlade Hirose DF13 JST ZH JST PH Grove JST XH JST SM JST RCY Molex KK 254 Dupont Servo plug JST VH Molex Mini-Fit Jr XT30 XT60 XT90 Deans (T-plug) Anderson Powerpole DC barrel plug
Frequently asked questions
What is the pitch of the Molex Micro-Fit 3.0 connector?
3.0 mm between the centres of two neighbouring contacts.
How much current can a Molex Micro-Fit 3.0 connector carry?
8.5 A per contact, at up to 600 V, according to Molex.
Figures from the makers’ catalogues and datasheets. Ratings are maxima: derate for thin wire and for many loaded contacts.