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About real time clock rtc
Where to Find Real Time Clock (RTC) Suppliers?
China remains the global epicenter for real time clock (RTC) component manufacturing, with Shenzhen and surrounding Guangdong regions forming a high-density electronics supply cluster. This industrial ecosystem integrates IC design houses, module assemblers, and distribution networks within close proximity, enabling rapid prototyping and scalable production. The region's mature semiconductor infrastructure supports both standalone RTC chips—such as DS1307, DS3231, and PCF2129—and integrated timing modules with memory and battery backup.
Suppliers benefit from localized access to substrates, oscillators, and packaging facilities, reducing material lead times by 20–30% compared to non-specialized regions. Vertical integration allows for flexible output scaling, with key manufacturers reporting monthly production capacities exceeding 500,000 units. Buyers gain access to standardized components for consumer electronics, industrial controls, and embedded systems, alongside custom configurations tailored to power consumption, temperature range, and communication interface requirements (I²C, SPI).
How to Choose Real Time Clock (RTC) Suppliers?
Effective supplier selection requires rigorous evaluation across technical, operational, and transactional dimensions:
Technical & Product Compliance
Verify that suppliers offer products aligned with industry-standard IC families (e.g., Maxim, NXP, or compatible equivalents). Confirm adherence to environmental regulations such as RoHS and REACH through documentation. For mission-critical applications, prioritize components with extended temperature ratings (−40°C to +85°C) and integrated temperature compensation (e.g., DS3231-grade accuracy).
Production and Quality Assurance
Assess supplier capabilities based on the following benchmarks:
- On-time delivery rate exceeding 95%
- Response time under 6 hours for technical inquiries
- Evidence of systematic quality control (e.g., batch testing, ESD-safe assembly lines)
- Inventory depth in core RTC models (DS1302, DS1307, DS3231, RX8025, PCF2129)
Cross-reference product listings with actual chip markings and datasheet specifications to mitigate risk of counterfeit or remarked ICs.
Procurement Safeguards
Utilize secure payment mechanisms where possible, especially for initial orders. Request sample batches to validate timing accuracy, power draw, and solderability before volume procurement. Analyze reorder rates as an indicator of customer satisfaction—suppliers with reorder rates below 20% may lack consistent quality or support.
What Are the Best Real Time Clock (RTC) Suppliers?
| Company Name | Main Products | Online Revenue | On-Time Delivery | Avg. Response | Reorder Rate | Min. Order Quantity | Price Range (USD) |
|---|---|---|---|---|---|---|---|
| Ruishengda Information Technology Co., Limited | Other Electronic Components (4,193), Other ICs (124) | US $20,000+ | 100% | ≤2h | <15% | 1 piece | $0.75–2.88 |
| Wtl International Limited | Oscillators (166), Resonators (127) | US $4,000+ | 50% | ≤6h | 16% | 10 pieces | $1.16–2.18 |
| Shenzhen Jinxin Century Electronics Co., Ltd. | Other ICs (2,733), Transistors (910) | US $30,000+ | 97% | ≤2h | 25% | 10 pieces | $0.08–1.00 |
| Shenzhen Jingmaoyuan Electronics Co., Ltd. | Other ICs (3,613), Dev Boards (1,023) | US $100,000+ | 100% | ≤2h | <15% | 1 piece | $0.01–0.94 |
| Shenzhen Ruichenyu Technology Co., Ltd. | Other ICs (1,883), Transistors (281) | US $90,000+ | 100% | ≤3h | 20% | 1 piece | $0.11–25.00 |
Performance Analysis
Shenzhen Jingmaoyuan Electronics leads in responsiveness and scalability, combining 100% on-time delivery with the lowest per-unit pricing and single-piece MOQs—ideal for prototyping and low-volume integration. Shenzhen Jinxin Century offers competitive bulk pricing ($0.08/unit) on precision RTC ICs like DS1305 and RX8025T, though minimum order thresholds start at 10 pieces. Ruishengda and Ruichenyu provide broad product variety, including legacy and specialty RTCs (e.g., DS1245Y, DS1642), catering to repair and obsolescence management needs despite higher price spreads. Wtl International exhibits lower delivery reliability (50%), suggesting potential fulfillment risks despite mid-range pricing.
FAQs
What is the typical MOQ for RTC components?
MOQ varies by supplier and form factor. Module-based RTCs often require 10-piece minimums, while IC-only suppliers may allow single-unit purchases. High-volume IC suppliers typically set MOQ at 10–100 units for cost-effective tape-and-reel packaging.
How long does it take to receive samples?
Sample lead times average 3–7 days for in-stock RTC ICs or modules. Shipping via express courier adds 3–5 business days internationally. No additional sampling fees are common for standard components, though specialized or obsolete parts may incur charges.
Can RTC suppliers support custom firmware or packaging?
Most suppliers offer limited customization, primarily in labeling or pre-programmed time settings. True firmware modification requires engagement with original IC manufacturers. Custom PCB layouts for RTC modules are feasible through select suppliers with development board experience.
Are these RTC components new and original?
Top-tier suppliers explicitly list "new original" stock in product descriptions. Buyers should request lot numbers and cross-check with manufacturer databases when authenticity is critical. Avoid suppliers without verifiable sourcing disclosures.
What are common RTC accuracy specifications?
Standard RTCs (e.g., DS1307) offer ±2 ppm accuracy at 25°C, translating to ~1 minute per month drift. Temperature-compensated variants (e.g., DS3231) achieve ±5 ppm across −40°C to +85°C. Crystal-based modules may vary up to ±20 ppm depending on layout and calibration.
