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GP2D12
Sharp Microelectronics
SENSOR OPTICAL 10-80CM ANALOG
1473 Pcs New Original In Stock
Optical Sensor 10 ~ 80cm Analog Output
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Minimum 1
Minimum 1
5.0 / 5.0
- (329 Ratings)
GP2D12
Product Overview
7927022
DiGi Electronics Part Number
GP2D12-DGManufacturer
Sharp Microelectronics
GP2D12
Description
SENSOR OPTICAL 10-80CM ANALOGInventory
1473 Pcs New Original In Stock
Optical Sensor 10 ~ 80cm Analog Output
Quantity
Minimum 1
Minimum 1
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GP2D12 Technical Specifications
Category
Optical Sensors, Distance Measuring
Packaging
-
Series
-
Product Status
Obsolete
Sensing Distance
10 ~ 80cm
Output Type
Analog
Voltage - Supply
4.5V ~ 5.5V
Current - Supply
33 mA
Voltage - Output Difference (Typ) @ Distance
2V @ 10 ~ 80cm
Voltage - Output (Typ) @ Distance
400mV @ 80cm
Operating Temperature
-10°C ~ 60°C (TA)
Datasheet & Documents
Datasheets
Download GP2D12 Product Specification (PDF)
HTML Datasheet
GP2D12-DG
Environmental & Export Classification
RoHS Status
RoHS non-compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
ECCN
EAR99
HTSUS
9031.80.8085
Additional Information
Other Names
425-1161
425-1161-5
425-1161-5-DG
Standard Package
50
Reviews
5.0/5.0-(Show up to 5 Ratings)
December 02, 2025
他們的物流系統非常先進，讓我們的進貨流程變得更為順暢高效。
December 02, 2025
商品カテゴリーが分かりやすく整理されていて、迷うことなく選択できました。
December 02, 2025
Their products are built with excellence and precision.
December 02, 2025
DiGi Electronics is reliable for emergency orders with rapid shipment and support.
December 02, 2025
DiGi Electronics' commitment to innovation and quality is truly commendable.
December 02, 2025
Order handling has been consistently quick and reliable, which greatly benefits our annual curriculum updates.
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Frequently Asked Questions (FAQ)
Can the Sharp GP2D12 optical sensor be safely used in a high-humidity outdoor environment despite its lack of conformal coating and RoHS non-compliant status?
The GP2D12 is not recommended for high-humidity or outdoor applications due to its RoHS non-compliant construction, which often indicates older materials more susceptible to corrosion, and its lack of environmental sealing. Although it has an MSL 1 rating (unlimited floor life), this only applies to moisture absorption during storage—not operational resilience. Prolonged exposure to condensation or salt spray can degrade the IR LED or phototransistor performance, leading to drift in analog output or complete failure. For outdoor use, consider a modern, sealed alternative like the STMicroelectronics VL6180X or a ruggedized module with IP-rated housing.
What are the key risks when replacing the obsolete GP2D12 with a newer analog distance sensor like the Pololu Carrier with Sharp GP2Y0A21YK0F in an existing robot navigation design?
Replacing the GP2D12 with the GP2Y0A21YK0F (10–80 cm range) introduces calibration and signal conditioning challenges due to differences in output response curves and noise profiles. While both have similar sensing ranges, the GP2Y0A21YK0F has a slightly different nonlinear voltage-to-distance relationship and higher output impedance, which may require adjustments to your ADC reference voltage or filtering circuitry. Additionally, the newer part may have tighter supply voltage tolerances. Always validate the substitution with empirical testing across the full distance range and update your firmware calibration tables to avoid navigation errors in robotics applications.
How should I handle power supply noise when integrating the GP2D12 into a battery-powered microcontroller system with shared 5V rails?
The GP2D12 is sensitive to supply noise because its analog output is directly proportional to the stability of its internal IR emitter drive current. In battery-powered systems with motors or digital loads on the same 5V rail, voltage ripple can cause false distance readings. To mitigate this, use a dedicated low-noise LDO (e.g., MCP1700) for the GP2D12, add a 100nF ceramic capacitor close to its VCC pin, and implement a separate ground return path if possible. Avoid long unshielded sensor cables, as they can act as antennas for EMI—twist signal and ground wires and keep the analog trace away from digital lines on your PCB.
Is it safe to operate the GP2D12 continuously at 60°C ambient temperature, and what long-term reliability issues should I expect?
Operating the GP2D12 continuously at its maximum rated ambient temperature of 60°C significantly reduces its operational lifespan and increases output drift over time. The internal IR LED efficiency degrades faster at elevated temperatures, leading to reduced sensing range and inconsistent analog output. Thermal cycling near the upper limit can also cause microcracks in the epoxy lens or bond wires. For reliable long-term operation, maintain ambient temperatures below 45°C and consider active cooling or heat sinking if used in enclosed spaces. Monitor output baseline shifts during burn-in testing to catch early degradation.
Can the GP2D12 be interfaced directly with a 3.3V microcontroller ADC without level shifting, given its 400mV to 2.4V analog output range?
Yes, the GP2D12’s analog output (typically 400mV at 80cm and up to ~2.4V at 10cm) is compatible with most 3.3V microcontroller ADCs without level shifting, as it stays well within the 0–3.3V input range. However, ensure your MCU’s ADC reference voltage is stable and that you’re not relying on the full dynamic range—consider using an op-amp gain stage if higher resolution is needed. Also, verify that the sensor’s output impedance (~2–3 kΩ) doesn’t exceed your ADC’s recommended source impedance; add a small buffer amplifier (e.g., MCP6002) if sampling speed is high or if multiple sensors share an ADC channel.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
GP2D12 CAD Models
Sharp Microelectronics GP2D12 PCB symbols & footprints
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