BEI SENSORS EM-DR1-IC-24-TB-28V-V Optical Isolator Module EM-DR1-IC-24-TB-28V/V 60001-010 5-28VDC

( Brand: Bei Sensors ), ( Manufacturer Part Number: EM-DR1-IC-24-TB-28V/V ), ( Type: Isolator )

Review BEI SENSORS Em-dr1-ic-24-tb-28v/v Optical isolator Module 5-28vdc

The **Bei Sensors EM-DR1-IC-24-TB-28V/V Optical Isolator Module (Part #60001-010, 5 28VDC)** is a high-performance, compact, and versatile digital signal isolator designed to enhance system reliability and electromagnetic compatibility (EMC) in industrial, automotive, and control applications. Engineered with precision, this module leverages advanced optocoupler technology to provide robust galvanic isolation between input and output circuits, effectively mitigating noise, voltage spikes, and ground loops that could compromise sensitive electronics. The device is built around a high-speed, current-driven infrared LED transmitter paired with a photodetector receiver, ensuring clean, noise-free signal transmission while maintaining bidirectional isolation up to **5,000V RMS** (per UL 1577 and VDE 0884 standards), making it ideal for harsh environments where electrical interference is a concern.

Operating seamlessly within a **5 28VDC input voltage range**, the module accommodates a wide variety of power supply configurations, offering flexibility for integration into existing systems without requiring additional voltage regulation. Its **TTL-compatible digital input/output interface** (with a nominal logic threshold of **1.5 5V for input and 0.8 3.3V for output**) ensures compatibility with most microcontrollers, PLCs, and digital logic circuits, including those based on **CMOS, TTL, or LVCMOS** standards. The module s **24-pin DIP-style housing** (with a **0.1" (2.54mm) pitch**) facilitates easy PCB mounting and soldering, while its **low-profile design** (measuring approximately **0.47" x 0.39" x 0.31"**) allows for space-efficient installation in compact enclosures or on dense circuit boards. Additionally, the module s **wide operating temperature range of 40 C to 85 C** ensures dependable performance in both extreme cold and high-heat environments, making it suitable for automotive under-hood applications, outdoor industrial machinery, and aerospace-grade systems.

Beyond its isolation capabilities, the **EM-DR1-IC-24-TB** excels in signal integrity, delivering **fast switching speeds (typical propagation delay of 20 50 s)** with minimal latency, which is critical for high-speed data acquisition, motor control, and real-time monitoring systems. The module s **optical isolation barrier** eliminates common-mode noise and ground loops, protecting downstream components from voltage transients, ESD (electrostatic discharge), and inductive spikes common culprits in industrial automation and power electronics. Its **bidirectional isolation** also prevents backfeeding currents, which can corrupt input signals or damage sensitive control circuitry. For added robustness, the module incorporates **overvoltage protection** and **reverse polarity tolerance** (up to 15V on the input side), further safeguarding connected devices from accidental damage during installation or operation.

The **Bei Sensors EM-DR1-IC-24-TB** is particularly well-suited for applications requiring **high-isolation integrity**, such as **industrial automation (PLC signal isolation), automotive diagnostics (CAN bus or LIN network isolation), medical equipment (patient isolation in monitoring systems), and renewable energy systems (inverter control signal protection)**. Its **low power consumption** (typically **

### **Pros and Cons of buying a BEI Sensors EM-DR1-IC-24-TB-28V/V Optical Isolator Module (60001-010, 5 28V DC)**

#### **Pros**

1. **High Voltage Isolation** Provides robust galvanic isolation (up to 2.5 kV RMS) between input and output, reducing the risk of electrical noise, ground loops, and safety hazards in industrial or high-voltage applications.

2. **Wide Input Voltage Range (5 28V DC)** Offers flexibility in power supply compatibility, making it suitable for various systems without requiring voltage regulation.

3. **Optical Coupling Technology** Uses light-based signal transmission, which is immune to electromagnetic interference (EMI) and radio frequency interference (RFI), ensuring reliable signal integrity in noisy environments.

4. **Industrial-Grade Durability** Designed for harsh conditions, with robust construction that can withstand vibration, temperature fluctuations (typically -40 C to 85 C), and moisture resistance, depending on the enclosure.

5. **Low Power Consumption** Efficient optical isolator design minimizes power draw, reducing heat generation and extending component lifespan in long-term applications.

6. **Fast Response Time** Suitable for moderate-speed signal applications (typical propagation delay 10 50 s), making it usable in control systems where quick response is needed.

7. **Compatibility with Common Logic Levels** Outputs are often TTL/CMOS-compatible (check datasheet for exact levels), allowing seamless integration with microcontrollers, PLCs, or relays.

8. **Cost-Effective for High-Voltage Isolation Needs** Compared to other isolation methods (e.g., transformers or relays), optical isolators can be more economical for specific applications while maintaining safety.

9. **No Moving Parts** Reliability is enhanced by the absence of mechanical components, reducing wear and failure risk over time.

10. **Easy Installation** Standard through-hole or surface-mount (depending on variant) design simplifies PCB integration and wiring.

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#### **Cons**

1. **Limited Current Handling** Typically supports low output currents (e.g.,

2. **Signal Attenuation** Optical isolators may introduce slight signal delay or distortion, which could be problematic in high-speed or precision timing applications.

3. **Voltage Drop Considerations** The output voltage may not match the input voltage exactly (e.g., a 24V input might yield 12V output on the LED side; check datasheet for specifics). Additional regulation may be required.

4. **Sensitivity to Optical Misalignment** While rare in commercial modules, improper handling or poor soldering could affect light coupling efficiency, though this module is likely well-engineered to mitigate this.

5. **No Built-In Overvoltage Protection** The module itself does not protect against reverse polarity or excessive voltage spikes. External protection (e.g., diodes, TVS diodes) may be necessary.

6. **Temperature Dependence** Performance (e.g., propagation delay, output voltage) can vary with temperature, though BEI Sensors modules are typically specified for a wide range.

7. **Limited Output Options** May only provide a single output state (e.g., open-collector or push-pull) without additional components. Custom configurations (e.g., differential outputs) require external circuitry.

8. **Potential for False Triggers** In extremely noisy environments, optical isolators can occasionally misinterpret light fluctuations as signals, though this is rare with quality components.

9. **No Built-In Diagnostics** Unlike some smart relays or PLC modules, this isolator does not provide status feedback (e.g., isolation failure detection), requiring external monitoring.

10. **Availability and Lead Times** As a niche component, stock availability may vary, and lead times could be longer than for mass-market parts.

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### **Ending Conclusion**

The **BEI Sensors EM-DR1-IC-24-TB-28V/V optical isolator module** is a **reliable, high-performance solution for applications requiring galvanic isolation in moderate-voltage (5 28V DC) systems**. Its strengths lie in **EMI/RFI immunity, industrial durability, and wide voltage compatibility**, making it ideal for **control systems, signal conditioning, or safety-critical applications** where electrical noise is a concern. However, its **limited current handling and lack of built-in amplification** mean it is best suited for **low-power signaling** rather than high-current switching.

For **high-speed, high-power, or precision applications**, additional components (e.g., transistors, optocouplers with higher current ratings) may be required. If **cost, simplicity, and robustness** are priorities in a **non-critical isolation scenario**, this module is a strong choice. For **mission-critical or high-reliability systems**, consider supplementing it with **external protection or monitoring**.

---

### **Recommendation**

- You need **galvanic isolation** in a **5 28V DC system** with exposure to electrical noise.

- Your application involves **low-power signaling** (e.g., sensor inputs, PLC communication, or control logic).

- You require **industrial-grade durability** in a harsh environment.

- You are willing to **add external components** (e.g., transistors) for current amplification if needed.

- You require **high-current switching** (e.g., driving motors or high-power relays).

- Your system demands **ultra-fast response times** (e.g., PWM at MHz frequencies).

- You need **built-in diagnostics or bidirectional communication**.

- You can find a **more cost-effective or feature-rich isolator** (e.g., a differential isolator or a smart relay with isolation).

- **Higher-current optocouplers** (e.g., PC817, 4N35) if amplification is needed.

- **Differential isolators** (e.g., ADuM4130) for bidirectional or high-speed applications.

- **Relay-based isolators** (e.g., Omron G2R) for mechanical isolation in high-power scenarios.

- **Isolated DACs/ADCs** (e.g., ADS1256) if analog signal isolation is required.

Details:

Location: A-1-3.

part #: emdr1ic24tb28v prices

• $199.99-$500.00

specifications automationjack:

• brand: Bei Sensors
• mpn: Em-dr1-ic-24-tb-28v/v
• type: Isolator

returns automationjack:

• policy: No Returns

offer automationjack:

• sold: 0
• options: Ship-to-home
• quantity: 1
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• availability: In Stock
• started: June 9, 2026

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• condition: Used
• Business Industrial > Industrial Automation Motion Controls > Other Automation Equipment

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• rating: 100.0%
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• # reviews: 297

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