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GP1S74P
Sharp Microelectronics
SENSOR OPT SLOT PHOTOTRANS MODUL
6040 Pcs New Original In Stock
Optical Sensor Through-Beam 0.197" (5mm) Phototransistor Module, Connector
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5.0 / 5.0
- (489 Ratings)
GP1S74P
Product Overview
7927778
DiGi Electronics Part Number
GP1S74P-DGManufacturer
Sharp Microelectronics
GP1S74P
Description
SENSOR OPT SLOT PHOTOTRANS MODULInventory
6040 Pcs New Original In Stock
Optical Sensor Through-Beam 0.197" (5mm) Phototransistor Module, Connector
Quantity
Minimum 1
Minimum 1
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GP1S74P Technical Specifications
Category
Optical Sensors, Photointerrupters - Slot Type - Transistor Output
Packaging
-
Series
-
Product Status
Obsolete
Sensing Distance
0.197" (5mm)
Sensing Method
Through-Beam
Output Configuration
Phototransistor
Current - DC Forward (If) (Max)
50 mA
Current - Collector (Ic) (Max)
20 mA
Voltage - Collector Emitter Breakdown (Max)
35 V
Response Time
3µs, 4µs
Operating Temperature
-25°C ~ 85°C
Mounting Type
Snap-In
Package / Case
Module, Connector
Type
Unamplified
Datasheet & Documents
Datasheets
Download GP1S74P Product Specification (PDF)
Design Resources
Development Tool Selector
HTML Datasheet
GP1S74P-DG
Environmental & Export Classification
RoHS Status
RoHS non-compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
ECCN
EAR99
HTSUS
8541.49.8000
Additional Information
Other Names
425-1061-5
Standard Package
50
Reviews
5.0/5.0-(Show up to 5 Ratings)
December 02, 2025
DiGi Electronics的物流速度真的令人驚喜，而且客服支持也很到位。
December 02, 2025
Their exceptional after-sales service makes DiGi Electronics my go-to brand for remote work needs.
December 02, 2025
I’ve received outstanding support from DiGi Electronics whenever I required help.
December 02, 2025
Their shipping tracking features are user-friendly and dependable.
December 02, 2025
DiGi's after-sales team demonstrates genuine care and professionalism.
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Frequently Asked Questions (FAQ)
Can GP1S74P be used in high-vibration environments where optical alignment might shift over time?
The GP1S74P uses a snap-in mounting design which provides mechanical stability, but in high-vibration applications, misalignment between emitter and receiver can degrade performance. Since it's a through-beam phototransistor module with a fixed 5mm gap, even slight mechanical displacement may cause false triggering or loss of signal. To mitigate risk, reinforce the mounting structure with adhesive or housing clips, and consider using ruggedized enclosures. For mission-critical designs, evaluate alternatives like fiber-optic sensors with flexible alignment. Always verify long-term reliability under actual field vibration profiles during validation.
Is GP1S74P a suitable drop-in replacement for Omron EE-SX671 or Honeywell SSF4500 sensors in existing designs?
While the GP1S74P shares similar through-beam operation and 5mm slot width with the Omron EE-SX671 and Honeywell SSF4500, it is not a direct drop-in replacement due to differences in footprint, connector type, and output drive capability. The GP1S74P has a phototransistor output without signal conditioning, whereas EE-SX671 includes hysteresis and SSF4500 offers digital output variants. Additionally, GP1S74P is RoHS non-compliant and obsolete, making long-term availability a concern. If replacing, redesign for current drive compatibility and validate noise immunity, especially in industrial environments.
What design considerations should be addressed when interfacing GP1S74P with a 3.3V microcontroller input?
The GP1S74P has a phototransistor output with a max collector current of 20 mA and requires proper biasing to interface reliably with 3.3V logic. Because its output is unamplified and open-collector, use a pull-up resistor (e.g., 4.7kΩ to 10kΩ) to 3.3V and verify sufficient voltage swing under all lighting conditions. Ensure the microcontroller’s input high threshold is met when the transistor is off. Also, add a bypass capacitor near the sensor to suppress noise, and consider adding a Schmitt trigger buffer if signal integrity is poor due to long traces or EMI.
How does the obsolescence of GP1S74P impact new product designs and long-term manufacturing?
The GP1S74P is listed as obsolete, meaning no future production is planned, which poses significant supply chain risks for new designs. While current stock exists (6000 pcs), long-term production runs are unsustainable. Redesign efforts should begin early by evaluating active-status alternatives like Temic TO914 or Vishay VESD6x, which offer comparable through-beam performance with modern packaging and RoHS compliance. For legacy system repairs, buy full stock with extended shelf-life storage; for new designs, avoid GP1S74P unless it's for limited-batch or short lifecycle products.
Can GP1S74P operate reliably in environments with fluctuating ambient temperature between -25°C and 85°C without signal drift?
The GP1S74P is rated for -25°C to 85°C operating temperature, but phototransistor parameters like dark current and responsivity vary with temperature, potentially causing signal drift. In precision detection tasks, this can lead to false triggers or reduced sensitivity at temperature extremes. To improve stability, use a current-limiting resistor on the LED side to maintain consistent emitter output, and implement hysteresis in the detection circuit (e.g., with a comparator). For critical applications, consider adding temperature compensation in firmware if feedback is available, or select amplified optical modules with built-in thermal stability.
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.
GP1S74P CAD Models
Sharp Microelectronics GP1S74P PCB symbols & footprints
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