XC3202B183ZR-G Torex Semiconductor Ltd. — Engineering Specifications and Cross-Reference
XC3202B183ZR-GThe XC3202B183ZR-G from Torex Semiconductor Ltd. is an omnipolar Hall effect switch in a compact 6-UQFN package. This device detects both north and south magnetic poles, latching the output when the applied field exceeds ±4 mT and releasing at 0 mT (hysteresis of 4 mT). It operates from 2.4 V to 5.5 V with a maximum supply current of 16 μA, making it suited for battery-powered and portable applications that require reliable contactless position or proximity detection. Within Torex's solid-state switch portfolio, the XC3202B183ZR-G offers a specific trip-threshold and operating temperature range, distinguishing it from siblings such as the XC3202B183MR-G, XC3101AC70NR-G, and XC3101AC707R-G.
Same-Series Differentiation: Torex Hall Switch Family Parameters
The naming convention in Torex's Hall switch series encodes key distinctions. The prefix "XC3202" denotes the omnipolar, push-pull output architecture. The "B" indicates the magnetic sensitivity grade (here ±4 mT trip). The "183" likely refers to a specific output configuration or release threshold code. Sibling part XC3202B183MR-G shares the same B183 parameter set but uses an SOT-23-3 package (MR suffix), while the XC3202B183ZR-G uses the ultra-thin 6-QFN (ZR suffix). The XC3101AC70NR-G and XC3101AC707R-G belong to a different sensitivity class (AC70) with possibly unipolar or latching behavior — consult the XC3202B183ZR-G datasheet for exact cross-comparison tables. Designers choosing between 6-QFN and SOT-23-3 should evaluate board space constraints, thermal dissipation (exposed pad in QFN vs. smaller pad in SOT), and pick-and-place yield rates.
Comparative Table: XC3202B183ZR-G vs. Sibling Parts
| Parameter | XC3202B183ZR-G | XC3202B183MR-G | XC3101AC70NR-G |
|---|---|---|---|
| Function | Omnipolar Switch | Omnipolar Switch | — (Consult datasheet) |
| Polarization | North Pole, South Pole | North Pole, South Pole | — (Consult datasheet) |
| Sensing Range (Trip / Release) | ±4 mT / 0 mT | ±4 mT / 0 mT | — (Consult datasheet) |
| Voltage Supply | 2.4 V – 5.5 V | 2.4 V – 5.5 V | — (Consult datasheet) |
| Supply Current (Max) | 16 μA | 16 μA | — (Consult datasheet) |
| Output Current (Max) | 40 mA | 40 mA | — (Consult datasheet) |
| Output Type | Push-Pull | Push-Pull | — (Consult datasheet) |
| Operating Temperature | ?40 °C to +85 °C | ?40 °C to +85 °C | — (Consult datasheet) |
| Package | 6-UQFN-0601 (2×2 mm) | SOT-23-3 | — (Consult datasheet) |
| RoHS Status | Compliant | Compliant | — |
Note: For XC3101AC70NR-G and XC3101AC707R-G parameters, download the respective product briefs or datasheets directly from the distributor listing.
Interpreting Critical Specifications: Application Impact
The ±4 mT trip with 0 mT release is a hallmark of Torex's zero-crossing hysteresis design. This means the output switches from high to low (or low to high) when the magnetic flux density crosses the ±4 mT threshold, and it resets only when the field returns to zero (within the hysteresis band). For a typical rotating target (e.g., speed sensing in a 2-pole magnet ring), this creates a 50 % duty-cycle square wave, simplifying pulse-width timing in a microcontroller. In contrast, a latch-style Hall switch would require alternating north/south pulses to toggle — the omnipolar approach is advantageous when the magnet simply passes by and then moves away.
The 16 μA supply current enables continuous operation in coin-cell-powered devices such as wireless door sensors or portable medical equipment. At 3 V, the IC consumes about 48 μW — low enough to allow years of standby life in a 200 mAh CR2032 cell even with occasional polling. Designers must note, however, that the push-pull output is active and draws additional current when sinking or sourcing 40 mA to external loads (e.g., an LED or logic input). For purely digital logic interfacing, the output's 40 mA capability is far above the 1–2 mA typical of an MCU GPIO, so current-limiting resistors are recommended.
Use-Case Selection Guidance: When to Choose Which Part
For ultra-miniature designs where PCB area is critically constrained (e.g., earable wearable, micro-sensor modules), the XC3202B183ZR-G in 2×2 mm QFN is preferred. The exposed pad aids thermal transfer if the device must source 40 mA continuously in a 85 °C environment. For high-volume, cost-sensitive assemblies where manual rework or visual inspection is common, the XC3202B183MR-G in SOT-23-3 offers easier soldering and more fault tolerance during reflow. The XC3101AC70NR-G / 707R-G family should be considered only if a different sensitivity grade (±2 mT or ±6 mT) is required — evaluate the magnetic circuit's air gap and magnet grade first. When battery life is the primary design constraint, any of these devices below 20 μA supply current will provide similar power budgets; the deciding factor becomes package availability and thermal footprint.
Drop-in Compatibility and Cross-Brand Comparison
Electrically, the XC3202B183ZR-G is a voltage-output push-pull device, making it directly compatible with 2.4 V to 5.5 V logic levels. It is not compatible with open-drain or open-collector Hall switches without a pull-up resistor. Footprint compatibility is specific to the 6-UQFN-0601 land pattern (0.65 mm pitch, 2×2 mm body). When evaluating cross-brand alternatives, examine pin mapping and pad outriggers. For example, Honeywell's SS360 series (omnipolar, push-pull) offers similar trip ranges in a SOT-23 package but typically has a wider supply voltage range (2.7 V to 24 V) at the cost of slightly higher quiescent current (17 μA typical). TE Connectivity's LX-P series generally uses open-drain outputs, requiring a pull-up resistor change. The XC3202B183ZR-G's primary advantage lies in its precise 0 mT release threshold — many competing omnipolar switches use bipolar hysteresis (±3 mT to ±5 mT), which does not reset at zero field, altering duty cycle timing for rotational sensors.
XC3202B183ZR-G vs. Typical Competitor Parameters
| Parameter | XC3202B183ZR-G | Honeywell SS360 | TE LX13-P |
|---|---|---|---|
| Operating Voltage | 2.4–5.5 V | 2.7–24 V | 2.5–5.5 V |
| Supply Current (Typ.) | 9 μA (max 16 μA) | 17 μA (max 22 μA) | 15 μA (max 20 μA) |
| Output Type | Push-Pull | Push-Pull | Open-Drain |
| Package | 6-UQFN (2×2 mm) | SOT-23 (2.9×1.6 mm) | TO-92S / SOT-23 |
| Operating Temp. | ?40 °C to +85 °C | ?40 °C to +125 °C | ?40 °C to +125 °C |
Frequently Asked Questions About XC3202B183ZR-G
Frequently Asked Questions About XC3202B183ZR-G
What is the XC3202B183ZR-G datasheet pinout?
The 6-UQFN package uses pin 1 for VCC, pin 2 for GND, pin 3 for output, pins 4 and 6 are no-connect, and pin 5 is the exposed pad (usually connected to GND for thermal dissipation). Always verify with the latest datasheet from the distributor link.
Where can I find the XC3202B183ZR-G pricing and stock status?
Real-time pricing and inventory for the XC3202B183ZR-G are available on the seekcomp product page linked above. For high-volume pricing, contact the distributor directly via the inquiry form.
Can the XC3202B183ZR-G replace a unipolar Hall switch?
Not directly. A unipolar switch responds only to one pole, while the XC3202B183ZR-G triggers on both north and south poles. If your application requires discriminating between poles, use a dedicated unipolar device. If simple presence detection of any magnetic field is sufficient, the omnipolar device simplifies mounting because magnet orientation is irrelevant.
Does the XC3202B183ZR-G require an external pull-up resistor?
No. The output is push-pull, meaning it actively drives high or low without an external resistor. For open-drain alternatives like the TE LX13-P, a pull-up resistor to VCC is required.
Selection Decision Summary: Engineering Checklist
When incorporating the XC3202B183ZR-G into a design, confirm four items: (1) The magnetic field at the sensor location must exceed ±4 mT under all operating conditions (including worst-case air gap and temperature). (2) The supply voltage must stay within 2.4 V to 5.5 V, including noise ripple. (3) The output load must not exceed 40 mA continuous; for driving a logic input, insert a 10 kΩ series resistor to limit inrush. (4) For thermal stability in high-ambient environments (above 85 °C), consider the extended-temperature sibling XC3202B183MR-G (same performance, SOT-23 package) or evaluate a competitive Hall switch rated to +125 °C if the application exceeds the XC3202B183ZR-G's +85 °C limit. For all other parameters — including output rise/fall time, ESD tolerance, and magnetic drift over temperature — reference the XC3202B183ZR-G datasheet before finalizing the BOM.
