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GP1S51V
Sharp Microelectronics
SENSOR OPT SLOT PHOTOTRAN PCB MT
8882 Pcs New Original In Stock
Optical Sensor Through-Beam 0.118" (3mm) Phototransistor PCB Mount
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*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (275 Ratings)
GP1S51V
Product Overview
7923902
DiGi Electronics Part Number
GP1S51V-DGManufacturer
Sharp Microelectronics
GP1S51V
Description
SENSOR OPT SLOT PHOTOTRAN PCB MTInventory
8882 Pcs New Original In Stock
Optical Sensor Through-Beam 0.118" (3mm) Phototransistor PCB Mount
Quantity
Minimum 1
Minimum 1
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365 - Day Quality Guarantee - Every part fully backed.
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GP1S51V Technical Specifications
Category
Optical Sensors, Photointerrupters - Slot Type - Transistor Output
Packaging
-
Series
-
Product Status
Obsolete
Sensing Distance
0.118" (3mm)
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
Through Hole
Package / Case
PCB Mount
Type
Unamplified
Datasheet & Documents
Datasheets
Download GP1S51V Product Specification (PDF)
Design Resources
Development Tool Selector
HTML Datasheet
GP1S51V-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
425-1048-5
Standard Package
50
Reviews
5.0/5.0-(Show up to 5 Ratings)
December 02, 2025
Le processus d’ajout au panier et de validation est parfaitement fluide.
December 02, 2025
Di Digi Electronics provides outstanding value with consistent products and competitive pricing.
December 02, 2025
The packaging design is sleek and practical, making storage and handling very convenient.
December 02, 2025
The packaging from DiGi Electronics is always well-protected and intact upon arrival, showcasing their commitment to quality.
December 02, 2025
I am consistently impressed by their adherence to promised delivery schedules.
December 02, 2025
Their shipping times are precise, which allows me to coordinate my assembly schedules effectively.
December 02, 2025
Super fast shipping combined with eco-conscious packaging made this shopping experience excellent.
December 02, 2025
Prompt responses from their support team have made resolving issues quick and hassle-free.
December 02, 2025
The site is very easy to navigate even for first-time visitors.
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Frequently Asked Questions (FAQ)
Can GP1S51V be used in high-temperature industrial environments above 85°C, and what are the risks of exceeding its specified operating temperature?
The GP1S51V is rated for an operating temperature range of -25°C to 85°C. Operating beyond 85°C risks degraded performance, including increased dark current and reduced phototransistor gain, which can lead to unreliable detection in critical applications. For designs targeting industrial environments where ambient temperatures approach or exceed 85°C, thermal derating, shielding, or active cooling should be considered. Alternatively, evaluate upgraded replacements like the EE-SX1040 from Omron, which offers better thermal stability and is still in production, reducing long-term supply risk despite the GP1S51V being obsolete.
Is GP1S51V a suitable drop-in replacement for optical sensors like the EE-SX1087 in legacy designs, and what circuit adjustments are needed?
The GP1S51V can function as a partial replacement for sensors like the EE-SX1087 in through-beam configurations due to similar 3mm gap and phototransistor output, but key differences require design attention. The GP1S51V has no internal signal amplification (unamplified type), so external pull-up resistors and amplification stages may be needed to match the output swing of the EE-SX1087. Additionally, verify current-limiting on the IR emitter side, as the GP1S51V's forward current max is 50 mA. Use a series resistor to ensure compatibility with your driver circuit and avoid premature emitter aging.
Why is GP1S51V marked as obsolete, and what are the supply chain risks when designing it into new products?
The GP1S51V is listed as obsolete by Sharp Microelectronics, meaning no future production is planned, even though current stock may be available. Using it in new designs carries significant long-term supply chain risk, especially for scalable or sustained production runs. While 8796 units are in stock now, availability will eventually deplete. Design-in of obsolete parts can lead to costly redesigns later. Engineers should consider alternatives like the TSSP55100 from Vishay or the LTR-2620-01 from Lite-On, which offer similar through-hole PCB mounting and through-beam operation with active production status and improved RoHS compliance.
How does the unamplified phototransistor output of GP1S51V affect signal integrity in noisy industrial control systems?
The unamplified phototransistor output of the GP1S51V produces a relatively low and variable collector current, making it susceptible to EMI and signal degradation in noisy environments. Without built-in hysteresis or amplification, external Schmitt trigger conditioning or op-amp buffering is strongly recommended to ensure clean digital transitions and prevent false triggering. When integrating the GP1S51V into motor controls or PLCs, use shielded wiring, short trace lengths, and proper grounding on the PCB to minimize noise coupling, especially given its 3µs rise time which demands clean input for accurate timing.
Is GP1S51V RoHS-compliant, and what are the regulatory and reliability implications of using this part in modern electronics?
The GP1S51V is RoHS non-compliant, meaning it contains restricted substances such as lead. Using it in new commercial or consumer products may violate EU RoHS, China RoHS, or other environmental regulations, limiting market access. Even in exempt applications (e.g., industrial equipment), lead-free assembly processes can introduce reliability risks due to incompatible solder joints. Given the part's obsolete status and non-compliance, the long-term reliability and serviceability of systems using GP1S51V are compromised. Strongly consider RoHS-compliant replacements like the TCST2103 from Vishay, which offers similar 3mm through-beam sensing in a surface-mount package with full regulatory compliance and better moisture resistance (MSL 1).
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.
GP1S51V CAD Models
Sharp Microelectronics GP1S51V PCB symbols & footprints
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