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BM03B-SURS-TF — JST product photo
JST

BM03B-SURS-TF JST SUR Header 3-Pos 0.8mm SMT

MPNBM03B-SURS-TF
Active

JST SUR series, BM03B-SURS-TF, Board to Cable/Wire header, 3 positions, 0.80mm pitch, Surface Mount, Shrouded - 4 Wall, Solder Retention, Tin contacts, rated 0.2A/0.5A at 30V.

$0.4500Ref. price · indicative, final on quote
BM03B-SURS-TF datasheet
StockContact for availability
Lead time3-5 Days 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

BM03B-SURS-TF Technical Specifications
ParameterValue
SeriesSUR
GenderOuter Shroud Contact
Mounting typeSurface Mount
Connector typeHeader
Fastening typePush-Pull
Voltage rating30V
Current rating0.2A, 0.5A
Operating temperature-25°C ~ 85°C
Contact materialCopper Alloy
Insulation colorNatural
Insulation height0.106\" (2.70mm)
Insulation materialPolyamide (PA), Nylon
Mated stacking heights3.95mm
Material flammability ratingUL94 V-0
StyleBoard to Cable/Wire
PackageTape & Reel (TR) Cut Tape (CT)
FeaturesSolder Retention
ShroudingShrouded - 4 Wall
TerminationSolder
Contact shapeRectangular
Rows1
Pitch0.031\" (0.80mm)
Positions3
Contact finish - postTin
Contact finish - matingTin

Product details

What this header fits and what it signals

The BM03B-SURS-TF is a 3-position, single-row, surface-mount header from JST's SUR series, pitched at 0.80mm. Rated at 0.2A per contact (with a 0.5A peak), this header is strictly for signal-level duty — think low-current sensor inputs, status LEDs, or configuration jumpers. It's not for power delivery.

Mated stack height and board clearance

That's a low profile — good for tight enclosures, but check your mating half's height tolerance to avoid interference.

The part is listed as RoHS non-compliant per the evidence, so verify your regulatory requirements.

The BM02B-SURS-TF is the 2-position version of the same SUR series header — same 0.80mm pitch, same 3.95mm stack height, same current rating. Choose based on your signal count; the footprint and routing are otherwise identical.

Frequently asked questions

What is the pitch of BM03B-SURS-TF?

The mating pitch is 0.80mm (0.031 inches). That's the center-to-center spacing of the contacts, which drives the PCB footprint and routing density.

Does BM03B-SURS-TF have a shrouded housing?

Yes, it is shrouded on all four sides (4-wall shrouding). This protects the pins from damage during handling and guides the mating receptacle into alignment.

What is the difference between BM03B-SURS-TF and BM02B-SURS-TF?

The only difference is the number of positions: BM03B-SURS-TF has 3 positions, BM02B-SURS-TF has 2. Everything else — pitch, stack height, current rating, material, mounting — is identical.