1 Channel Relay Module Circuit Diagram
About 1 channel relay module circuit diagram
Where to Find 1 Channel Relay Module Circuit Diagram Suppliers?
China remains the central hub for printed circuit board (PCB) and electronic module manufacturing, with Shenzhen-based suppliers dominating production of low-voltage control components such as 1 channel relay modules. The city’s mature electronics ecosystem enables rapid prototyping, scalable assembly, and integrated component sourcing, particularly for optocoupler-isolated relay boards operating at 5V, 12V, and 24V DC inputs.
Suppliers in this segment benefit from proximity to semiconductor distributors, PCB fabricators, and logistics networks, allowing efficient fulfillment of small-batch and bulk orders alike. Most manufacturers operate lean production lines focused on standardized relay module designs, including KY-019 variants, self-locking configurations, and high-load 30A switching units. Lead times typically range from 7–15 days for ready-to-ship inventory, with customization options available for trigger logic (active-high/low), mounting style, and connector type. This localized supply chain reduces unit costs by 20–40% compared to Western or Southeast Asian alternatives.
How to Choose 1 Channel Relay Module Circuit Diagram Suppliers?
Selecting reliable partners requires structured evaluation across technical, operational, and transactional dimensions:
Technical Documentation & Design Support
Confirm availability of complete circuit diagrams, pinout schematics, and PCB layout files. Suppliers should provide clear specifications for coil voltage, contact rating (resistive vs. inductive loads), isolation voltage, and optocoupler integration. For integration into automated systems, verify compatibility with microcontrollers (e.g., Arduino, ESP8266, Raspberry Pi).
Production and Quality Assurance
Assess supplier capabilities through verifiable metrics:
- On-time delivery rate exceeding 95%
- Response time under 3 hours for technical inquiries
- Evidence of functional testing per batch (e.g., continuity, insulation resistance)
- Compliance with RoHS and REACH standards for hazardous substances
While ISO 9001 certification is not universally present in this component tier, consistent reorder rates (>20%) and documented quality checks indicate process maturity.
Order Flexibility and Transaction Security
Prioritize suppliers offering low minimum order quantities (MOQs) of 1–10 pieces for sampling and prototyping. Unit pricing for standard 5V 1-channel modules ranges from $0.10–$1.50 depending on current rating and packaging. Use secure payment mechanisms and request sample validation before scaling procurement. Cross-check product images against actual units to confirm PCB labeling, component placement, and terminal block durability.
What Are the Best 1 Channel Relay Module Circuit Diagram Suppliers?
| Company Name | Main Products (Listings) | Online Revenue | On-Time Delivery | Reorder Rate | Avg. Response | Min. Order | Price Range (USD) |
|---|---|---|---|---|---|---|---|
| Shenzhen Orwintech Electronic Co., Ltd. | Other ICs (68,847) | US $160,000+ | 100% | 25% | ≤2h | 5–10 pcs | $0.10–0.99 |
| Shenzhen Kaisheng Century Electronics Co., Ltd. | Other ICs (data not fully listed) | US $160,000+ | 100% | 16% | ≤2h | 1–100 pcs | $0.33–1.05 |
| Shenzhen Hongtai Shengye Technology Co., Ltd. | Other ICs (3,081) | US $20,000+ | 96% | 20% | ≤1h | 1 pc | $0.20–1.00 |
| Shenzhen Yuzens Technologies Co. Ltd. | Other ICs (13,852) | US $60,000+ | 100% | <15% | ≤3h | 1–10 pcs | $0.39–1.50 |
| Shenzhen Jiaqisheng Electronics Co., Ltd. | Other ICs (722) | US $2,000+ | 85% | <15% | ≤6h | 1–10 pcs | $0.45–6.61 |
Performance Analysis
Shenzhen Orwintech and Kaisheng Century lead in volume capacity and financial stability, both reporting over US $160,000 in online revenue and perfect on-time delivery records. Orwintech stands out with a 25% reorder rate and competitive pricing starting at $0.10, indicating strong customer retention and cost efficiency. Hongtai Shengye offers the fastest response time (≤1h) and single-unit MOQs, making it ideal for prototype sourcing despite lower annual revenue. Yuzens Technologies maintains robust production infrastructure with diverse module offerings, though its reorder rate suggests room for service improvement. Jiaqisheng Electronics has the lowest delivery reliability (85%) but provides niche variants such as Wemos D1 Mini-integrated relays. Buyers prioritizing scalability should favor suppliers with >10,000 component listings and proven logistics execution.
FAQs
How to verify 1 channel relay module circuit diagram accuracy?
Request manufacturer-provided schematic files or annotated PCB diagrams. Validate signal flow, optocoupler placement, flyback diode inclusion, and power regulation components. Compare against industry-standard designs like KY-019 for consistency.
What is the typical lead time for samples?
Standard samples ship within 3–7 days. Customized versions with modified footprints or voltage ratings may require 10–14 days for fabrication and testing.
Do suppliers support global shipping?
Yes, most suppliers offer international express delivery (DHL, FedEx, UPS) and sea freight for bulk orders. Confirm incoterms (e.g., FOB Shenzhen) and import duties applicable to electronic components in your region.
Are free samples available?
Some suppliers offer paid samples refundable against future orders. True free samples are rare; expect to pay $0.20–$1.50 per unit plus shipping for evaluation batches.
Can I customize the relay module design?
Yes, many suppliers support modifications including silkscreen labeling, form factor adjustments, and input voltage reconfiguration. Minimum custom order quantities typically start at 100–500 units, with NRE fees applying for new PCB tooling.
