1. Server Power Supplies Computers For Sale
  2. sku: 10055198023414891
  3. MURATA NEC RH1685

MURATA / NEC RH1685 Power Supply P/n 804-120109-001

804-120109-001 Murata / Nec Rh1685 P/n Power Supply

( Brand: Murata / Nec ), ( Manufacturer Part Number: RH1685 ), ( Part Type: Supply )

Review MURATA / NEC P/n Power Supply

The **Murata NEC RH1685 (Part Number: 804-120109-001)** is a high-performance, compact, and ultra-reliable **DC-DC power supply module** designed to deliver precise and stable voltage regulation in demanding industrial, automotive, and telecommunications applications. Engineered with Murata NEC s signature precision and durability, this module is part of the **RH series**, renowned for its exceptional efficiency, low noise operation, and robust thermal management. With an **input voltage range of 4.5V to 16V**, the RH1685 provides a **regulated output of 5V at up to 1.2A**, making it ideal for powering sensitive electronics such as microcontrollers, FPGAs, sensors, and low-power communication modules where consistent voltage is critical. Its **wide input tolerance** ensures compatibility with various battery chemistries and power sources, while its **high efficiency (up to 90%)** minimizes heat dissipation, reducing the need for additional cooling solutions and extending the lifespan of connected systems.

The RH1685 is housed in a **compact, lead-free, and RoHS-compliant SMD package (16.0mm x 12.0mm x 3.2mm)**, allowing for seamless integration into space-constrained designs without compromising performance. Its **low output ripple and noise** (typically under 50mVpp) ensure clean power delivery, reducing electromagnetic interference (EMI) and protecting delicate circuitry from voltage spikes or fluctuations. The module features **overvoltage protection (OVP), overcurrent protection (OCP), and short-circuit protection (SCP)**, providing robust safeguards against electrical faults while maintaining operational integrity. Additionally, its **wide operating temperature range (-40 C to 105 C)** makes it suitable for harsh environments, including automotive under-hood applications, outdoor industrial setups, and aerospace-grade systems where reliability is non-negotiable.

Beyond its technical specifications, the RH1685 stands out for its **plug-and-play functionality**, requiring minimal external components for operation, which simplifies PCB design and reduces assembly complexity. Its **adjustable output voltage capability** (via external resistor trimming) allows for slight customization to match specific system requirements, while its **low quiescent current (typically under 10 A)** ensures energy efficiency in low-power applications. Whether deployed in **IoT devices, motor control systems, or high-density server infrastructure**, this power supply module delivers a perfect balance of performance, reliability, and compactness, making it a trusted choice for engineers seeking a dependable power solution without sacrificing space or efficiency.

The Murata NEC RH1685 power supply (part number 804-120109-001) is a high-quality, industrial-grade AC/DC power supply designed for demanding applications. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

### **Pros:**

1. **High Reliability and Durability**

The RH1685 is built to industrial standards, featuring robust construction, wide operating temperature ranges (-40 C to 85 C), and protection against overvoltage, overcurrent, and short circuits. This makes it suitable for harsh environments such as automotive, industrial automation, and telecommunications.

2. **Wide Input Voltage Range**

With an input voltage range of 85 264V AC, the unit can operate reliably across global power supplies without requiring additional input voltage adapters, reducing complexity in deployment.

3. **High Efficiency and Power Factor Correction**

The power supply achieves high efficiency (up to 90% or better) and includes active power factor correction (PFC), which minimizes harmonic distortion and reduces energy consumption. This is beneficial for both cost savings and compliance with energy regulations.

4. **Compact and Lightweight Design**

Despite its industrial-grade build, the RH1685 is relatively compact and lightweight, making it easier to integrate into space-constrained systems.

5. **Multiple Output Options**

The unit offers a variety of output configurations, including single, dual, and triple outputs, allowing flexibility in power distribution for different applications. The 804-120109-001 model specifically provides a **12V/10A (120W) output**, which is suitable for low-voltage applications such as sensors, relays, and control circuits.

6. **Long Lifespan and Low Maintenance**

Due to its high-quality components and robust design, the RH1685 has an extended operational lifespan with minimal maintenance requirements, reducing downtime and replacement costs over time.

7. **Compliance with Safety and EMI Standards**

The power supply meets international safety standards (UL, CUL, CE, CB) and electromagnetic interference (EMI) regulations, ensuring safe and compliant operation in various markets.

8. **Wide Operating Temperature Range**

The ability to function in extreme temperatures (-40 C to 85 C) makes it ideal for outdoor, automotive, or industrial environments where temperature fluctuations are common.

9. **Modular and Scalable**

Murata NEC s RH series is part of a modular family, allowing for easy scalability by combining multiple units for higher power requirements.

10. **Good Thermal Management**

The design includes efficient heat dissipation, reducing the need for additional cooling solutions in many applications.

---

### **Cons:**

1. **Higher Upfront Cost**

As an industrial-grade power supply, the RH1685 is more expensive than consumer-grade or basic commercial power supplies. The premium pricing reflects its reliability, efficiency, and compliance with strict standards.

2. **Limited Output Power for Some Applications**

The 120W output may be insufficient for high-power applications requiring multiple high-current loads. Users needing higher power may need to combine multiple units or select a different model from Murata NEC s lineup.

3. **Slightly Bulkier Than Some Alternatives**

While compact for an industrial unit, it may still be larger than some off-the-shelf or custom-designed power supplies optimized for minimal size.

4. **Potential for Overkill in Low-Demand Applications**

If the application does not require industrial-grade robustness (e.g., a simple desktop or low-power embedded system), the RH1685 may be more expensive than necessary. In such cases, a cheaper commercial-grade power supply could suffice.

5. **Limited Customization for Specific Outputs**

The RH series offers standard output configurations, and custom voltages or currents may require additional components or modifications, adding complexity or cost.

6. **Dependence on Murata NEC s Support**

While Murata NEC is a reputable manufacturer, users may need to rely on their technical support or distributors for repairs or replacements, which could introduce delays or additional costs.

7. **Potential for Higher EMI in Some Configurations**

Although the power supply meets EMI standards, improper shielding or cable routing in the system could still lead to interference issues in sensitive applications.

---

### **Conclusion:**

The Murata NEC RH1685 (804-120109-001) is an excellent choice for applications requiring **high reliability, efficiency, and durability in harsh environments**. Its wide input voltage range, compliance with global standards, and robust build make it ideal for industrial, automotive, or telecommunications use. However, its higher cost and potentially higher power requirements than some alternatives may not justify its purchase for low-demand or consumer-grade applications.

For users prioritizing **long-term reliability, compliance, and performance in demanding conditions**, the RH1685 is a strong recommendation. For applications with **lower power needs or less stringent environmental requirements**, a more cost-effective commercial-grade power supply may be a better fit.

---

### **Recommendation:** - **Buy the Murata NEC RH1685 (804-120109-001) if:**

- You need an industrial-grade power supply for automotive, industrial automation, or telecommunications.

- Your application operates in extreme temperatures or requires high reliability.

- You require compliance with strict safety and EMI standards.

- You want a long lifespan with minimal maintenance.

- **Consider alternatives if:**

- Your application is low-power and does not require industrial-grade durability.

- You need higher output power than 120W and can combine multiple units or select a different model.

- Cost is a critical factor, and a commercial-grade power supply would suffice.

For most industrial or mission-critical applications, the RH1685 is a **highly recommended** choice due to its proven performance and longevity. Always verify the specific requirements of your application before purchasing to ensure it meets your needs.

Details:

The MURATA P/N RH1685 / NEC 804-120109-001 Power Supply is a high-quality server power supply designed for enterprise networking setups. Manufactured by reputable brands MURATA and NEC, this power supply is reliable efficient in providing to servers networking equipment.

part #: rh1685 price

  • $400.00

specifications serverpowe:

  • brand: Murata / Nec
  • mpn: Rh1685
  • part type: Supply

shipping serverpowe:

  • type: Calculated
  • class: Standard, One-day
  • transit: 3-7 Days
  • service: UPS Ground, FedEx Ground / FedEx Home Delivery, UPS Next Day Air Saver
  • carrier: UPS, FedEx
  • cost: $31.36

payments serverpowe:

  • wallet: Apple-pay
  • other
  • credit card: Visa

returns serverpowe:

  • time: 30 Days
  • method: Money back
  • paid by: Seller
  • policy: Returns Accepted

general serverpowe:

  • condition: Used
  • Enterprise Networking, Servers > Server Components > Server Power Supplies

seller serverpowe:

  • rating: 100.0%
  • # reviews: 4354
  • city: Gilroy, California

offer serverpowe:

  • sold: 0
  • options: Ship-to-home
  • started: June 9, 2026
  • availability: In Stock
part type: supply,
category: computers > enterprise networking, servers > server components > server power supplies, sku: 10055198023414891,
Murata / Nec RH1685 Is Similar To:
serverpowe logo
1 offer $400.00 USD
  • Used. Offer #1 priced at $400.00 + $31.36 shipping estimate = $431.36* total. Manufactured by reputable brands MURATA and NEC, this power supply is reliable and efficient in providing power to servers and networking equipment The MURATA P/N / NEC P/N Power Supply is a high-quality server power supply designed for enterprise networking setups.+$31.36 shipping

Copyright © serverpowe.com