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12SR-3S — JST product photo
JST

JST 12SR-3S SR Series Receptacle, 12 Pos, 1.00mm Pitch, IDC

MPN12SR-3S
Active

JST SR series receptacle, 12 positions, 1.00mm pitch, single row, IDC termination, 30 AWG, tin contacts, free hanging, natural color, closed end.

$0.9100Ref. price · indicative, final on quote
12SR-3S datasheet
StockIn Stock (26)
Lead timeIn Stock wk
MOQ1 pcs
  • New & original stockTraceable channels only — no mixed lots, no re-taped reels.
  • Factory packaging where availableSealed reels, trays and bags; cut quantities always stated on the quote.
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Specifications

12SR-3S Technical Specifications
ParameterValue
SeriesSR
Wire typeDiscrete
GenderFemale Socket
Mounting typeFree Hanging (In-Line)
Connector typeReceptacle
Wire gauge30 AWG
Cable terminationIDC
ColorNatural
Pitch0.039\" (1.00mm)
PackageBulk
FeaturesClosed End
Contact finishTin
Rows1
Positions12

Product details

Wiring this 12-position SR receptacle without a crimp tool

The JST 12SR-3S is a 12-position receptacle from the SR series, terminated via IDC — no crimp tool needed, just a press. Use anything thicker and the IDC slot won't close; anything thinner and the insulation won't pierce reliably. The closed-end housing blocks wire push-through, so the conductor stops where it should — a detail that matters when you're building a harness without a backshell.

Still in production — no last-time-buy scramble

It's ROHS3 compliant, which covers the current EU directive.

Frequently asked questions

What is the pin pitch of JST 12SR-3S?

The pin pitch is 0.039" (1.00 mm). That's the center-to-center spacing between adjacent contacts, and it determines the board footprint if you're designing a matching header.

Is JST 12SR-3S a male or female connector?

It's a female receptacle with socket contacts. It mates with the corresponding male header from the SR series.

Does JST 12SR-3S have a locking feature?

The SR series uses a friction-lock mechanism on the housing, not a positive latch. It holds the mated pair together under light vibration but isn't rated for high-shock environments without additional retention.