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BM04B-SRSS-TB

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JST Sales America Wire To Board Connector, SMD,P=1mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentconnectorsbm04b-srss-tbfactory-2.0.0extractor-text

Verified BM04B-SRSS-TB

by Ray · last 10 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

10 Nov 2026RayPublished by the parts factory: tier lcsc, 4 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: BM04B-SRSS-TB · JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical · 4 pins
  • ✓copper: 6 copper pads, none touching another net
  • ✓datasheet: all 4 pin names found in the 4-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical
  • ✓files: 6 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-isitbkoj/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 1 records
  • •package_fit (skip): a connector's drawing does not give a package outline's A, D and E (datasheet p.3)
  • ✓pads: 4 pins = 5 pads
  • ✓pose: 1 STEP(s) Z-up, seated, centred
  • ✓symbol: 4 pins agree
  • ✓symbol_text: no pin names collide
  • ✓viewers: viewers/footprint.html 24 kB, viewers/symbol.html 7 kB
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ bm04b-srss-tb.kicad_sym✓ bm04b-srss-tb.kicad_mod✓ bm04b-srss-tb.step
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3D Model

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Symbol & Footprint

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PCB Footprint

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Datasheet

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Contents

README

markdown

BM04B-SRSS-TB

JST Sales America · Wire To Board Connector · JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical

BM04B-SRSS-TB from JST Sales America, in a JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 1 passive Circuit No. 1 contact of the 1.0 mm pitch SMT header, marked 'No. 1 circuit' in the drawing, rated 0.7 A AC/DC and 50 V AC/DC.
2 2 passive Circuit 2 contact at 1.0 mm pitch from pin 1, rated 0.7 A AC/DC and 50 V AC/DC.
3 3 passive Circuit 3 contact at 1.0 mm pitch from pin 2, rated 0.7 A AC/DC and 50 V AC/DC.
4 4 passive Circuit 4 contact at 1.0 mm pitch from pin 3, rated 0.7 A AC/DC and 50 V AC/DC.

Key specifications

Parameter Value
Manufacturer JST Sales America
Package JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical
Category Connectors
Pins 4

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Contact resistance (initial value) 20 mΩ Initial value 1
Contact resistance (after environmental tests) 40 mΩ After environmental tests 1
Insulation resistance 100 MΩ 1
Current rating 0.7 A AC/DC 1
Voltage rating 50 V AC/DC 1
Operating temperature range -25 85 °C Including temperature rise while applying electrical current 1

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
housing PBT Base housing: PBT (Glass-filled), UL94V-0, natural (white) 3
contacts Phosphor bronze tin Contact: Phosphor bronze, tin-plated 2

CAD (KiCad official)

  • Symbol: BM04B-SRSS-TB
  • Footprint: Connector_JST:JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical
  • 3D model: JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: JST Sales America datasheet (4 pp, sha256 25c2aa750d4a0918, retrieved 2026-11-10, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF