B2412S-2W
9-36V to 12V 2W wide input isolation module, ideal for 24V battery and industrial systems
Product Overview
Description
The B2412S-2W is a wide input DC-DC power module in Aipu Electronics' B series, featuring 9-36V wide input range suitable for 24V battery and industrial applications.
This module accepts input voltage from 9V to 36V, making it compatible with 12V and 24V lead-acid batteries, 24V Li-ion batteries, and industrial systems with voltage fluctuations. The 4:1 input range ensures stable operation throughout battery discharge cycle.
With 1500VDC isolation voltage and 85% efficiency, the B2412S-2W provides reliable isolated power for industrial control, vehicle electronics, and battery-powered equipment applications.
Product Series
B
Primary Application
24V battery-powered systems
Key Features
- Wide input range 9-36VDC (4:1 ratio)
- Output voltage 12VDC, power 2W
- Isolation voltage 1500VDC
- High efficiency 85%
- SIP7 package
- Industrial temperature range -40C to +85C
- Input undervoltage protection
- Short circuit protection
Specifications
| Input Voltage Range | 9-36VDC |
|---|---|
| Output Voltage | 12VDC |
| Output Power | 2W |
| Output Current | 167mA |
| Isolation Voltage | 1500VDC |
| Efficiency | 85% typ |
| Operating Temperature | -40C ~ +85C |
| Package | SIP7 |
Applications
24V battery-powered systems
Battery and charging management
12V and 24V vehicle electronics
Automotive and EV electronics
Industrial control systems
Industrial automation and control
Battery backup systems
Battery and charging management
Renewable energy systems
Renewable energy systems
FAE Expert Insights
"I have extensive experience with B2412S-2W in various battery-powered and industrial applications. This module's wide 9-36V input range is perfect for 24V systems where voltage can vary significantly. I've used it in solar-powered street lighting controllers, 24V vehicle electronics, and industrial backup power systems. The 85% efficiency is impressive for a wide input module, and the 1500VDC isolation provides excellent noise immunity. In a recent project with 100+ modules in outdoor environments, we've had zero failures over 2 years. The undervoltage protection is particularly valuable for battery applications, preventing deep discharge damage. For any 24V system requiring 12V output with wide input flexibility, I highly recommend B2412S-2W."
Wide 9-36V range perfect for 24V systems, 85% high efficiency, excellent field reliability
— Zhang Wei, BeiLuo
Frequently Asked Questions
What battery types are compatible with B2412S-2W?
The B2412S-2W (9-36V input range) is compatible with multiple battery types: 1) 24V lead-acid batteries: nominal 24V, range 20-28V, fully covered; 2) 24V Li-ion batteries: nominal 25.2V, range 18-29.4V, fully compatible; 3) 12V lead-acid batteries: nominal 12V, range 10.8-13.8V, compatible at lower end; 4) 7S LiFePO4 batteries: nominal 22.4V, range 17.5-25.9V, fully compatible. The wide 9-36V range accommodates voltage variations from fully charged to deeply discharged states for 24V battery systems.
B2412S-2W works with 24V lead-acid, 24V Li-ion, and 7S LiFePO4 batteries. Also compatible with 12V systems at lower voltage range.
What is the efficiency of B2412S-2W?
The B2412S-2W typical efficiency is 85%, which is excellent for a wide input DC-DC module. At full load (2W output), the input power is approximately 2.35W, resulting in only 0.35W power loss. This high efficiency means low heat generation, typically less than 20°C temperature rise above ambient, ensuring reliable operation without additional heat sinking in most applications.
85% high efficiency means low heat generation and high reliability, suitable for enclosed and battery-powered applications.
What protection features does B2412S-2W have?
The B2412S-2W includes comprehensive protection features: 1) Input undervoltage protection: shuts down when input drops below 9V, protecting battery from over-discharge; 2) Output short circuit protection: limits current and enters hiccup mode during short circuit, automatic recovery when fault removed; 3) Overcurrent protection: limits output current to protect module and load; 4) Overtemperature protection: reduces output power or shuts down if internal temperature exceeds safe limits. These protections ensure reliable operation and prevent damage to the module, battery, and connected equipment in harsh environments.
Comprehensive protection including undervoltage, short circuit, overcurrent, and overtemperature ensures reliable battery-powered operation.
What is the isolation voltage of B2412S-2W?
The B2412S-2W provides 1500VDC isolation voltage between input and output, tested according to IEC/EN/UL60950-1 standards. This isolation level effectively prevents ground loop interference and protects sensitive 12V circuits from noise and transients on the 24V input side. The 1500VDC isolation is suitable for most industrial and commercial applications. For applications requiring higher isolation, consider modules with 2500VDC or 3000VDC isolation ratings.
1500VDC isolation suitable for industrial applications. Select higher isolation for medical or high-voltage equipment.
What is the operating temperature range of B2412S-2W?
The B2412S-2W operating temperature range is -40°C to +85°C (industrial grade). This wide temperature range makes it suitable for harsh environments including outdoor equipment, vehicle electronics, industrial sites, and battery systems. The module maintains stable output voltage across the entire temperature range. For high-temperature applications above 70°C, consider power derating or additional cooling to ensure long-term reliability.
Industrial grade -40°C to +85°C range suitable for harsh environments. Consider derating for high-temperature applications.