AH3711Q-P-BDiodes IncorporatedHall-effect latch · SIP-3AH3711Q-P-B is a Diodes Incorporated automotive-qualified bipolar Hall-effect latch in a through-hole SIP-3 package, with a south-pole-on / north-pole-off output, a 3 V to 27 V operating range, and typical operate and release points of ±10 Gauss. The ±10 Gauss sensitivity is the selection point: it detects weaker magnetic fields than conventional latches, so designs may be able to use smaller, lower-cost magnets while keeping magnetic margin, subject to design verification, which can cut BOM cost and shrink the sensing assembly in BLDC motor commutation, window powerlifts, sunroofs, tailgate drives, seat-adjustment motors, fans, pumps, and speed measurement. The business gain is automotive-grade robustness with integrated protection: a reverse-blocking diode and Zener clamp on the supply, an open-drain output with overcurrent limiting, and withstand of 40 V transient load dumps (absolute-maximum stress rating, not continuous operation; operating range up to 27 V) and reverse polarity; whether additional external protection can be omitted depends on the application and requires design verification. The chopper-stabilized design holds switch points stable across the -40°C to +150°C range with minimal drift from temperature and PCB assembly stress, backed by 8 kV HBM and 1 kV CDM ESD ratings. Evidence: the Diodes AH3711Q datasheet (DS47457 Rev. 1-2, October 2025) defines this P-B code as the SIP-3 (Bulk Pack) automotive variant in bulk packing, 1,000 pieces per pack, with marking code 3711Q, AEC-Q100 qualification, PPAP capability, and manufacture in IATF 16949 certified facilities. Selection advice: choose P-B for through-hole assembly, hand soldering, prototyping, or low-volume builds where no SMT line is available; note that bulk packing means manual insertion rather than reel-fed SMT, so for volume surface-mount production use the SA-7 (SOT23) or W-7 (SC59) tape-and-reel codes instead; this SIP-3 variant takes the south pole on the marked side, like the SOT23 variant, unlike the SC59 variant which takes it on the opposite side; choose the non-Q AH3711 only when automotive change control and PPAP are not required. Parameters verified against Diodes Incorporated documentation (AH3711Q datasheet DS47457 Rev. 1-2, October 2025). State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation.