Dc E2h Datasheet May 2026
DC-E2H Datasheet: High-Efficiency DC-DC Conversion for Modern Electronics
In the evolving landscape of power electronics, the DC-E2H has emerged as a critical component for engineers seeking high-density power solutions. Whether you are designing industrial automation systems or compact consumer electronics, understanding the technical specifications of the DC-E2H datasheet is essential for optimizing system performance.
This article provides a deep dive into the parameters, features, and application circuits typically found in the DC-E2H documentation. 1. Product Overview
The DC-E2H is a high-efficiency DC-DC step-down (buck) converter module designed to provide a stable output voltage from a fluctuating input source. It is characterized by its wide input voltage range and its ability to maintain high efficiency even under light load conditions. Key Applications:
Industrial IoT Sensors: Providing stable power from 24V rails. Telecommunications: Distributed power architectures.
Battery-Powered Devices: Maximizing battery life through low quiescent current.
Automotive Electronics: Handling voltage spikes and drops in vehicle systems. 2. Absolute Maximum Ratings
Before integration, it is vital to note the limits beyond which the device may suffer permanent damage. According to the DC-E2H datasheet: Input Voltage ( VINcap V sub cap I cap N end-sub ) up to 40V DC Output Current ( IOUTcap I sub cap O cap U cap T end-sub ) 2.0A (Continuous) Operating Temperature -40°C to +85°C Storage Temperature -65°C to +150°C 3. Electrical Characteristics
The core of the datasheet lies in its electrical performance metrics. The DC-E2H is built to minimize heat dissipation, which is reflected in its efficiency ratings. Efficiency
One of the standout features of the DC-E2H is its 92% peak efficiency. This is achieved through synchronous rectification and low
RDS(ON)cap R sub cap D cap S open paren cap O cap N close paren end-sub
internal MOSFETs. This high efficiency reduces the need for bulky heatsinks, allowing for a more compact PCB layout. Voltage Regulation Line Regulation: ±0.5% (Typical) Load Regulation: ±1.0% (Typical) Output Ripple: < 50mV peak-to-peak at full load. 4. Pin Configuration and Functions
The DC-E2H usually comes in a standard 4-pin or 5-pin package (such as SIP or SMD). VIN: Positive Input Power. GND: Common Ground for both input and output. VOUT: Regulated Output Voltage.
EN/CTRL: Enable pin (high for ON, low for OFF), used for power sequencing.
ADJ (Optional): Used in adjustable versions to set the output voltage via a resistor divider. 5. Design Considerations and Thermal Management
While the DC-E2H is highly efficient, thermal management cannot be ignored. The datasheet recommends:
Input/Output Capacitors: Using low-ESR ceramic capacitors (typically 10µF to 22µF) close to the pins to minimize noise. PCB Copper Traces: Widening traces for VINcap V sub cap I cap N end-sub VOUTcap V sub cap O cap U cap T end-sub dc e2h datasheet
to handle high current density and assist in heat dissipation.
Short Protection: The DC-E2H features built-in short-circuit protection (SCP) and thermal shutdown, which protects the module if the junction temperature exceeds 150°C. 6. Conclusion
The DC-E2H datasheet reveals a robust, efficient, and versatile power module. Its wide input range and minimal ripple make it a "plug-and-play" solution for many power-sensitive applications. By adhering to the recommended thermal layouts and capacitor selections, designers can ensure long-term reliability for their products.
Through-hole) or a particular output voltage for your DC-E2H design?
The marking code typically refers to a 1.8V Low Dropout (LDO) linear regulator
in a compact SOT23-5 package. It is most commonly associated with the TX6211B-18 or equivalent series such as the RT9193-18GB AliExpress Key Technical Specifications Based on the TX6211B datasheet
, here are the primary electrical characteristics for this component: STM32-base project Input Voltage Range : 2.5V to 5.5V. Fixed Output Voltage
: 1.8V (indicated by the "18" in the part number and "DC=E2H" code). Maximum Output Current : Typically 400mA to 500mA. Dropout Voltage : Very low, approximately 170mV to 200mV at 200mA load. Quiescent Current : Low power consumption, typically 30μA. Standby Current : Less than 1μA when in shutdown mode. Operating Temperature : -40°C to +85°C. STM32-base project Pin Configuration (SOT-23-5) The typical pinout for these LDO regulators includes: STM32-base project : Power supply input. : Ground connection. : Active-high enable pin.
: Bypass capacitor pin (for noise reduction) or No Connection. : Regulated 1.8V output. Applications
These regulators are designed for high-speed, low-noise performance in space-constrained environments: STM32-base project Battery-Powered Equipment : Smartphones, cameras, and IoT sensors. Microprocessor Power : Stable voltage rails for digital logic. Consumer Electronics : Low-noise power for RF and analog circuits. STM32-base project full PDF datasheet or a for PCB design?
The marking DC=E2H typically refers to the RT9193-18GB, an ultra-fast, low-noise CMOS Low Dropout (LDO) linear regulator. It is commonly found in SOT23-5 packaging and is widely used in portable RF and wireless applications where stable voltage and small footprints are required. Technical Overview
Based on common TX6211B and RT9193 datasheets, the "DC=E2H" marked variant provides the following specifications:
Output Voltage: Fixed at 1.8V (indicated by the "-18" in the part number). Input Voltage Range: Typically 2.5V to 5.5V.
Dropout Voltage: Very low, often around 170mV to 200mV at a 200mA load.
Maximum Output Current: Up to 300mA to 500mA depending on the specific manufacturer variant.
Quiescent Current: Low power consumption, typically around 30µA to 50µA. High Efficiency : The module boasts an efficiency
Stability: Compatible with low ESR ceramic capacitors, which helps reduce cost and board space. Key Features for Design
High PSRR: Designed for noise-sensitive applications like cellular phones and wireless LANs.
Fast Transient Response: Settles within microseconds during step loads, maintaining stability even during frequent load fluctuations.
Small Footprint: Most frequently supplied in a SOT23-5 or SC70-5 package. Identification and Sourcing
When searching for the official datasheet, look for the parent series RT9193 (Richtek) or TX6211B (TXSemi). The DC=E2H code is the "marking code" used to identify the 1.8V version on the small physical chip surface where a full part number cannot fit.
Do you need the full PDF datasheet for a specific manufacturer?
Are you designing a new PCB and need advice on capacitor selection for this LDO? TX6211B Series High Speed Low Noise LDO - STM32-base
Introduction
The DC-E2H is a highly efficient and compact DC-DC converter module designed for various industrial and commercial applications. The module is part of the DC-E series, which offers a wide range of input and output voltage options. In this article, we will provide an overview of the DC-E2H datasheet, highlighting its key features, specifications, and applications.
Key Features
The DC-E2H module is a high-performance DC-DC converter that offers several key features, including:
- High Efficiency: The module boasts an efficiency of up to 92%, making it suitable for applications where energy efficiency is crucial.
- Compact Design: The DC-E2H has a compact design, with a small footprint that makes it ideal for applications where space is limited.
- Wide Input Voltage Range: The module accepts a wide input voltage range of 18-36VDC, making it suitable for various applications.
- High Output Current: The DC-E2H can deliver a high output current of up to 2A, making it suitable for applications that require a high power output.
Specifications
The DC-E2H datasheet provides detailed specifications for the module, including:
- Input Voltage: 18-36VDC
- Output Voltage: 12VDC
- Output Current: 0-2A
- Efficiency: Up to 92%
- Switching Frequency: 150kHz
- Operating Temperature: -40°C to 85°C
- Storage Temperature: -40°C to 125°C
Applications
The DC-E2H module is suitable for a wide range of applications, including:
- Industrial Control Systems: The module can be used in industrial control systems, such as programmable logic controllers (PLCs), human-machine interfaces (HMIs), and motor control systems.
- Medical Devices: The DC-E2H can be used in medical devices, such as patient monitoring systems, defibrillators, and ventilators.
- Communication Systems: The module can be used in communication systems, such as routers, switches, and wireless access points.
- Aerospace and Defense: The DC-E2H can be used in aerospace and defense applications, such as military communication systems, navigation systems, and radar systems.
Conclusion
In conclusion, the DC-E2H datasheet provides detailed information on the module's key features, specifications, and applications. The module is a high-performance DC-DC converter that offers high efficiency, a compact design, and a wide input voltage range. Its suitability for various applications makes it a popular choice among designers and engineers.
The hum of the server room was a steady, low-frequency heartbeat, but for Elias, the lead systems architect, the real pulse was on his screen. He was looking at the DC-E2H datasheet, the blueprint for the facility's next generation of power distribution.
To most, a datasheet is a dry collection of tables. To Elias, it was a manual for survival.
"Efficiency ratings are up," he muttered, tracing the curve on the thermal management graph. The DC-E2H wasn't just a component; it was a high-efficiency power module designed for high-density data centers. He noted the input voltage range—wide enough to handle the slight fluctuations of the local grid—and the peak efficiency of 96%.
That 4% loss mattered. In a room housing ten thousand blades, 4% was the difference between a cool operation and a cooling bill that could bankrupt the quarter.
He scrolled down to the mechanical specifications. The "H" in E2H stood for "Hybrid," a nod to its ability to bridge legacy AC systems with the newer DC architectures they were phased-in to support. The footprint was compact, a standard 1U half-rack width, but the current density was what caught his eye. It packed 800 watts into a space usually reserved for 500.
"Protection protocols?" his junior dev, Sarah, asked over his shoulder.
Elias pointed to the Safety & Compliance section. "Over-voltage, over-current, and short-circuit protection are all hardware-level. But look at the MTBF (Mean Time Between Failures)."
The number was staggering—over 500,000 hours. It was a promise of reliability in a world where a five-minute outage cost millions.
As Elias closed the PDF, he didn't see a document anymore. He saw a stable, humming floor of lights that wouldn't flicker, even when the rest of the city went dark. The datasheet was his contract with the future. AI responses may include mistakes. Learn more
It looks like you're asking for the full story or full documentation behind a component labeled "DC E2H" — likely meaning you want the datasheet.
However, based on standard electronic component nomenclature:
- "DC" often refers to a manufacturer prefix (e.g., DC Components, DC Semiconductor, or part of a series like DC-DC converters).
- "E2H" is not a common, widely known industry-standard part number for major brands (like Texas Instruments, Analog Devices, ON Semi, etc.).
A search of major datasheet archives (including manufacturer databases and aggregators like Alldatasheet, DatasheetArchive, or Octopart) does not return a confirmed "DC E2H" datasheet under that exact string.
1. Overview & Product Definition
The DC E2H is a high-performance network interface controller (NIC) designed to bridge the Data Center Ethernet (DC-E) fabric and the Host internal bus (typically PCIe Gen 4/5/6). It targets latency-sensitive, throughput-intensive workloads: AI/ML clusters, distributed storage (NVMe-oF), HPC, and cloud microservices.
Key Positioning:
- Supports RoCEv2 (RDMA over Converged Ethernet) for kernel-bypass, CPU-offloaded data movement.
- Integrates PCIe SR-IOV for virtualization and SwitchDev/ADQ for application queuing.
A. Electrical Specifications (The "DC" part)
- Supply Voltage: Most E2H models operate on 5VDC ±5% or 12-24VDC ±5%.
- Why it matters: If you supply 24V to a 5V rated encoder, you will burn it out instantly.
- Output Type: This determines how the encoder talks to your controller (PLC or Arduino).
- NPN Open Collector: The output acts as a switch to Ground. Common in Japanese PLCs.
- PNP Open Collector: The output acts as a switch to Power. Common in European PLCs.
- Line Driver (RS-422): Uses differential signals (A, A-, B, B-). This is for long cable runs and high noise immunity. You cannot connect this directly to a standard Arduino digital pin without a converter.
- Resolution: Expressed in PPR (Pulses Per Revolution). A 500 PPR encoder outputs 500 square waves per turn.
Safety and Regulatory Compliance
The DC E2H module complies with various safety and regulatory standards, including but not limited to: 1kΩ) if your downstream circuit idles.
- UL60950-1
- IEC60950-1
- RoHS compliant
2.2 Recommended Operating Conditions
This is where your design must stay for guaranteed performance.
- Input Voltage Range: 4.5V – 5.5V (5V nominal).
- Output Load Range: 10% to 100% of rated load (e.g., 100mA to 1000mA for a 1W module).
- Capacitive Load Max: 100µF (too much capacitance can cause startup issues).
Common Mistake: Running the converter at 0% load (no load) on unregulated E2H variants. The datasheet will show that output voltage can rise 20% above nominal with no load. Always add a minimum load resistor (e.g., 1kΩ) if your downstream circuit idles.