Counterfeit and defect prevention
Visual and packaging inspection
Electrical performance verification
Service Email:
[email protected]
>
GP1S39
Sharp Microelectronics
SENSOR OPT SLOT PHOTOTRAN PCB MT
25023 Pcs New Original In Stock
Optical Sensor Through-Beam 0.059" (1.5mm) Phototransistor PCB Mount
Request Quote
(Ships tomorrow)
*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (268 Ratings)
GP1S39
Product Overview
7928885
DiGi Electronics Part Number
GP1S39-DGManufacturer
Sharp Microelectronics
GP1S39
Description
SENSOR OPT SLOT PHOTOTRAN PCB MTInventory
25023 Pcs New Original In Stock
Optical Sensor Through-Beam 0.059" (1.5mm) Phototransistor PCB Mount
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
How to Order
Shipping & Delivery
Quality Assurance
365 - Day Quality Guarantee - Every part fully backed.
90 - Day Refund or Exchange - Defective parts? No hassle.
Limited Stock, Order Now - Get reliable parts without worry.
Global Shipping & Secure Packaging
Worldwide Delivery in 3-5 Business Days
100% ESD Anti-Static Packaging
Real-Time Tracking for Every Order
Secure & Flexible Payment
Credit Card, VISA, MasterCard, PayPal, Western Union, Telegraphic Transfer(T/T) and more
All payments encrypted for security
GP1S39 Technical Specifications
Category
Optical Sensors, Photointerrupters - Slot Type - Transistor Output
Packaging
-
Series
-
Product Status
Obsolete
Sensing Distance
0.059" (1.5mm)
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
50µs, 50µs
Operating Temperature
-25°C ~ 85°C
Mounting Type
Through Hole
Package / Case
PCB Mount
Type
Unamplified
Datasheet & Documents
Datasheets
Download GP1S39 Product Specification (PDF)
Design Resources
Development Tool Selector
HTML Datasheet
GP1S39-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
425-1046-5
Standard Package
40
Reviews
5.0/5.0-(Show up to 5 Ratings)
December 02, 2025
The packaging from DiGi Electronics is consistently secure, preventing any damage during long-distance shipping.
December 02, 2025
I always find their pricing to be fair and transparent.
December 02, 2025
DiGi Electronics ensures that every communication is handled with care.
Publish Evalution
Evalution Message
Please enter your review message.
Please post honest comments and do not post ilegal comments.
Frequently Asked Questions (FAQ)
Can I use the GP1S39 as a direct replacement for the GP1A03HRZ or GP1A57HRZ in a through-beam encoder application, and what design risks should I consider?
The GP1S39 can function similarly to the GP1A03HRZ and GP1A57HRZ in through-beam sensing applications due to comparable 1.5mm slot width and phototransistor output, but direct replacement requires careful mechanical and electrical validation. The GP1S39 is labeled obsolete and is RoHS non-compliant, posing long-term supply and regulatory risks. Additionally, response time (50µs) and output current (20 mA max) are similar but not identical—verify signal timing compatibility in high-speed designs. Always confirm alignment tolerance and PCB layout spacing to prevent false triggering in encoder wheel integration.
Is the GP1S39 suitable for high-reliability industrial controls operating near 85°C, and how does its unamplified output affect signal integrity?
While the GP1S39 operates up to 85°C, its unamplified phototransistor output is sensitive to temperature-induced leakage current (Iceo), which increases near maximum temperature and may cause false detection in noisy environments. For high-reliability industrial controls, implement a Schmitt trigger or comparator on the output to clean up marginal signals. Avoid using the GP1S39 in applications requiring long-term stability without recalibration, especially where ambient temperature fluctuates rapidly, as gain variation with temperature can degrade sensing consistency.
What are the key PCB layout and mechanical integration challenges when mounting the GP1S39 through-hole in a densely populated board?
The GP1S39’s through-hole PCB mount and 1.5mm slot width demand precise board cutouts or partner component alignment to maintain optical integrity. Avoid placing tall adjacent components that could misalign the emitter-detector pair or cause mechanical stress during assembly. Ensure adequate clearance around the slot to prevent solder wicking or conformal coating from obscuring the optical path. Use alignment fixtures during prototyping to minimize skew, which can reduce effective sensitivity and increase signal dropout risks.
How does the RoHS non-compliant status of the GP1S39 impact new product designs for EU or global markets, and are there compliant drop-in alternatives?
Using the GP1S39 in new designs risks non-compliance with EU RoHS directives due to its non-compliant status, potentially blocking market access. While functional alternatives like the TCST2103 or Optek OSEC-2100 offer similar 1.5mm through-beam phototransistor performance and RoHS compliance, they require footprint and sensitivity revalidation. Consider redesigning with compliant parts early—even if GP1S39 is in stock—because its obsolete status limits long-term availability and increases supply chain vulnerability.
What are the risks of driving the GP1S39 at 50mA forward current in continuous operation, and how can I optimize LED drive for longevity?
Driving the GP1S39 at its 50mA max forward current continuously accelerates LED degradation, especially at elevated temperatures, reducing sensor lifespan and signal margin over time. For reliable long-term operation, derate the forward current to 30–35mA and verify adequate current-limiting resistor selection to prevent thermal runaway. Use pulsed operation (when possible) to maintain signal-to-noise ratio while minimizing heat. Monitor ambient temperature near the sensor and avoid enclosed, poorly ventilated enclosures to prevent combined thermal stress on both LED and phototransistor elements.
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.
GP1S39 CAD Models
Sharp Microelectronics GP1S39 PCB symbols & footprints
productDetail
