SSR-25DD Solid State Relay – 25A DC to DC SSR Module for PID Temperature Control
SSR-25DD Solid State Relay – 25A DC to DC SSR Module for PID Temperature Control
The SSR-25DD Solid State Relay is a high-performance DC-DC relay module designed for fast, silent, and reliable switching in automation systems. Rated for 25A at up to 100VDC, it accepts a DC control signal (3–32VDC) and switches a DC load (5–100VDC). This relay is ideal for PID temperature controllers, heating elements, motors, and other DC-powered devices where mechanical relay noise and wear are not acceptable.
⚙️ Key Features:
- ⚡ 25A Output Current Capacity – Handles high-power DC loads up to 100V
- 🧲 DC to DC Switching – Optoisolated input for electrical separation and stable performance
- 🔇 Silent Operation – No moving parts, ideal for noise-sensitive applications
- 🔧 Quick Response Time – Fast switching suited for precision temperature control
- 🛡️ Durable Aluminum Heat Sink Base – For efficient heat dissipation under heavy loads
📦 Specifications:
- Model: SSR-25DD
- Input Control Voltage: 3–32VDC
- Output Load Voltage: 5–100VDC
- Output Current: 25A max
- Control Type: DC to DC
- Mounting: Panel mount with screw terminals
- Indicator: Built-in LED for control signal indication
- Insulation Resistance: ≥100MΩ (500VDC)
💡 Applications:
- PID temperature controllers
- Heating systems and thermoelectric coolers
- DC motor control
- Battery-operated DC load switching
- Industrial automation and robotics
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PCB Layout & Design Services
We provide professional PCB layout and design services for electronics projects, prototypes, and small to medium production needs. Our goal is to deliver accurate, manufacturable, and well-documented PCB designs tailored to your specific requirements.
How to Request a PCB Layout/Design:
- Send your complete schematic or diagram via our Facebook page.
- We will assess your diagram and provide a quotation based on the complexity and requirements.
Special Offer for New Customers!!
New customers receive a special introductory discount on their first PCB layout/design project.
This allows us to review your design requirements and build a long-term working relationship.
How to Request a PCB Layout / Design
- Send your complete schematic or diagram via our Facebook page.
- Our team will review your diagram carefully to understand the design scope and requirements.
- A detailed quotation will be provided based on:
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- Design complexity
- Board size and number of layers
- Components and package types
- Special routing or manufacturing requirements
📌 Providing your diagram is essential so we can give you an accurate and fair quotation.
PCB Layout & Design Requirements
To ensure quality and accuracy, please note the following:
- All schematics must be clear, complete, and properly labeled
- Specify:
- Board dimensions (if available)
- Number of PCB layers
- Preferred components or footprints (if any)
- Hand-drawn, unclear, or incomplete schematics are not accepted
- Rush or urgent requests may incur additional charges
What’s Included in the Design Package
Each completed project includes the following deliverables:
✅ 2D PCB layout images
✅ 3D PCB render images
✅ PCB Gerber files (ready for fabrication)
✅ Bill of Materials (BOM)
✅ Component Placement List (CPL / Pick-and-Place file)
✅ Wiring diagram (PDF)
✅ PCB board layout (PDF)
All files are prepared to be manufacturer-ready and easy to review.
Pricing Information
Pricing is project-based and depends on:
- The submitted schematic or diagram
- Board size and layer count
- Types of components used (SMD, through-hole, fine-pitch, BGA, etc.)
- Design complexity and routing difficulty
📌 Final pricing is confirmed only after reviewing the client’s diagram.
Design Review & Approval Process
Before final delivery:
- The client will receive preview files for checking
- Please review carefully for:
- Errors
- Missing information
- Clarifications or revisions
- Once the design is confirmed and approved, the final files will be sent to the client’s email
⚠️ After final approval, any major changes may be treated as a new request.
Payment Methods
Philippines (Local Clients):
- GCash
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International Clients:
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📌 Design work starts after payment confirmation unless otherwise agreed.
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