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S201DH1
Sharp Microelectronics
SSR RELAY SPST-NO 1.5A 0-240V
2296 Pcs New Original In Stock
Solid State SPST-NO (1 Form A) 16-DIP (0.300", 7.62mm), 10 Leads
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5.0 / 5.0
- (230 Ratings)
S201DH1
Product Overview
7924580
DiGi Electronics Part Number
S201DH1-DGManufacturer
Sharp Microelectronics
S201DH1
Description
SSR RELAY SPST-NO 1.5A 0-240VInventory
2296 Pcs New Original In Stock
Solid State SPST-NO (1 Form A) 16-DIP (0.300", 7.62mm), 10 Leads
Quantity
Minimum 1
Minimum 1
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S201DH1 Technical Specifications
Category
Solid State Relays
Packaging
-
Series
S201
Product Status
Obsolete
Mounting Type
Through Hole
Circuit
SPST-NO (1 Form A)
Output Type
AC
Voltage - Input
1.2VDC
Voltage - Load
0 V ~ 240 V
Load Current
1.5 A
Termination Style
PC Pin
Package / Case
16-DIP (0.300", 7.62mm), 10 Leads
Supplier Device Package
16-DIP
Datasheet & Documents
Datasheets
Download S201DH1 Product Specification (PDF)
HTML Datasheet
S201DH1-DG
Environmental & Export Classification
RoHS Status
RoHS non-compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
ECCN
EAR99
HTSUS
8536.41.0030
Additional Information
Other Names
425-1240-5
Standard Package
50
Reviews
5.0/5.0-(Show up to 5 Ratings)
December 02, 2025
Mit der genauen Sendungsverfolgung fühlte ich mich gut betreut. Das ist für mich essenziell.
December 02, 2025
The website's font size and contrast make reading comfortable over extended periods.
December 02, 2025
The affordability of their products makes DiGi Electronics my favorite shopping destination.
December 02, 2025
The after-sales team was proactive, reaching out to ensure my satisfaction after my purchase.
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Frequently Asked Questions (FAQ)
Is the S201DH1 still a viable option for new designs given that it's marked as obsolete, and what are the key supply chain and reliability risks I should consider before using it in a production design?
The S201DH1 from Sharp Microelectronics is officially obsolete, which means it is no longer recommended for new designs and may face diminishing availability over time. While 2,286 units are currently in stock, this inventory could deplete quickly without replenishment, creating long-term supply chain risks for volume production or service replacements. Additionally, obsolete components may lack ongoing manufacturer support, firmware updates, or reliability data. If you must use the S201DH1 in a legacy system redesign, secure a lifetime buy or qualify a drop-in replacement (e.g., Crydom CMX60D10 or Panasonic AQH3211) early to mitigate future shortages and ensure RoHS compliance if required by your market.
Can I safely replace the S201DH1 with a modern RoHS-compliant SSR in an existing through-hole PCB layout without changing the board or firmware?
Direct replacement of the S201DH1 with a modern RoHS-compliant SSR is possible but requires careful validation. The S201DH1 uses a 16-DIP (7.62mm pin spacing) package with 10 functional leads and is non-RoHS, so many newer equivalents (e.g., IXYS CPC1963Y or Omron G3NA-210B) may come in different packages or require different input drive levels. While some pin-compatible alternatives exist, you must verify input current requirements—the S201DH1 needs only 1.2VDC to trigger, which is lower than many modern opto-SSR inputs. Always validate thermal performance and leakage current under load, as newer parts may have different off-state characteristics that affect sensitive AC loads.
What are the thermal and derating considerations when using the S201DH1 at its full 1.5A load current in an enclosed industrial control panel with limited airflow?
The S201DH1 has no internal heat spreader and relies entirely on PCB copper and ambient convection for cooling. At 1.5A continuous load, even modest enclosure temperatures (e.g., 40°C+) can push the junction temperature beyond safe limits due to its relatively high on-resistance (~0.8Ω typical). You should derate the load current by at least 20–30% in enclosed environments and use a thermal pad or small heatsink if possible. Monitor case temperature during testing—Sharp’s datasheet suggests max case temp of 85°C. Without active cooling, sustained operation near 1.5A risks thermal runaway or reduced lifespan, especially with inductive loads that increase switching stress.
How does the S201DH1 compare to the Crydom D2425 in terms of switching performance, longevity, and suitability for inductive AC loads like contactor coils?
The S201DH1 and Crydom D2425 are both SPST-NO AC solid-state relays, but the D2425 offers superior performance for inductive loads. The S201DH1 uses a triac output with zero-crossing turn-on, which reduces EMI but can cause higher inrush stress on inductive loads due to phase-aligned switching. The D2425 features enhanced snubber circuitry and higher surge current tolerance (25A vs. ~10A for S201DH1), making it more robust for contactor or relay coil driving. Additionally, the D2425 is RoHS-compliant and actively supported. If your application involves frequent switching of inductive loads, the D2425 is a more reliable long-term choice, despite requiring verification of pin compatibility and input drive levels.
What input drive circuit design practices should I follow to ensure reliable triggering of the S201DH1’s 1.2VDC input without risking false turn-on or insufficient activation in noisy industrial environments?
The S201DH1’s ultra-low 1.2VDC trigger voltage makes it sensitive to noise and voltage drops in long control wiring. To ensure reliable operation, use a low-impedance driver (e.g., open-collector transistor or logic gate with pull-down) and include a small series resistor (100–470Ω) to limit inrush current and dampen ringing. Avoid floating inputs—always provide a pull-down resistor (10kΩ) to prevent false triggering from EMI. In high-noise environments, consider shielding control lines and using a local decoupling capacitor (0.1µF) near the input pins. Unlike higher-threshold SSRs, the S201DH1 may activate unintentionally if control signals have slow rise times or ground bounce, so validate timing margins during prototype testing.
Quality Assurance (QC)
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S201DH1 CAD Models
Sharp Microelectronics S201DH1 PCB symbols & footprints
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