JST Connector Guide

Created a project doc

S2B-PH-SM4-TB(LF)(SN) Application and Usage Guide

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S2B-PH-SM4-TB(LF)(SN) Application and Usage Guide
The JST S2B-PH-SM4-TB(LF)(SN) is a 2-position, 2.0 mm-pitch, side-entry surface-mount wire-to-board header in the JST PH family. Its most common use is a compact, polarized connection for low-voltage power or two-wire signals using a PHR-2 cable housing and crimp contacts.
1. Quick Specifications
Rating note: JST specifies connector ratings rather than semiconductor-style “absolute maximum” and “recommended operating” tables. Treat the rated voltage, current, and temperature range below as design limits, and derate for harness wire size, ambient temperature, PCB copper, contact aging, and regulatory spacing requirements.
2. Pinout & Connections

flux

Created the sourced S2B-PH-SM4-TB(LF)(SN) Application and Usage Guide, covering specifications, pin usage, mating parts, application wiring, PCB layout, pitfalls, alternatives, and sourcing.
  • Uses current JST ratings, including 2 A, 100 V, and −40 °C to +105 °C; it flags older distributor temperature data.
  • Identifies PHR-2 housing and compatible crimp contacts.
  • Clearly states that no verified other-manufacturer drop-in replacement was found.
  • Final citation/read-back verification remains unfinished because execution stopped when your ACUs ran out.
J

jharwinbarrozo

are you finish?

flux

Not fully. The guide was created, but the final citation and document read-back verification was not completed because the previous run exhausted its usage allowance.
J

jharwinbarrozo

then try to complete it

flux

I’ll finish the verification now: re-open the guide, validate each technical claim and citation, correct any unsupported wording, then perform a final read-back check.

flux

The primary JST document now verifies the electrical ratings, model dimensions, mating housing, contact wire ranges, low-insertion-force warning, and reel quantity. I found a few unsupported or weakly phrased statements in the guide and am correcting those before the final read-back.

flux

Completed and verified the Application and Usage Guide.
  • Confirmed JST ratings, dimensions, mating housing, contacts, wire ranges, and packaging.
  • Added missing claim-specific citations and corrected unsupported wording.
  • Final read-back found valid inline citation formatting with no unresolved footnotes.
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Pins

Symbol

Layout

3D View

P1
P2
Name
Pin #
Type
Section
Pin Group
Orientation
Order
Sub-symbol
Current
P1
1
Passive
Left
0.65A
P2
2
Passive
Left
0.65A

S2B-PH-SM4-TB(LF)(SN)