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24V To 85V Step Up Transformer High Frequency Flyback Transformer For LED UPS
Place of Origin:
China
Brand Name:
Chipsen
Certification:
UL/ISO9001/ISO14001/RoHS/Reach
Model Number:
EEL12 EEL16 EEL22 EEL25
Minimum Order Quantity:
1000 pcs
Price:
$0.78-$1.08
Packaging Details:
Carton
Delivery Time:
15-30 working days
Payment Terms:
T/T
Supply Ability:
1KK pcs / Month
Inquiry Now
Get A Quote
Specifications
Highlight Features
Step Up High Frequency Flyback Transformer
,LED UPS High Frequency Flyback Transformer
,24V To 85V step up transformer
Input Voltage:
24V
Output Voltage:
85V
Core Sizes:
EEL12, EEL16, EEL22, EEL25
Core Material:
Ferrite, PC40 / PC44 Standard; N87 / N97 / PC95 Available On Request
Operating Frequency:
20 KHz To 200 KHz Standard; Up To 500 KHz With Litz Wire And Low-loss Core
Insulation Class:
Class B (130 C) Or Class F (155 C) Standard; Class H (180 C) Available
Product Description
24V to 85V Step-up Transformer Flyback Transformer for LED UPS
The EEL series high frequency transformer is a low-profile switching transformer family built on EEL type ferrite cores, available in EEL12, EEL16, EEL22 and EEL25 sizes. The EEL core is a flattened version of the standard EE core: it keeps a similar effective cross-section but reduces the overall height, which makes the finished transformer noticeably thinner than an EE part of the same power class. This is why the series is widely chosen for slim adapters, LED driver boxes, wall-mount power modules and any board where vertical clearance is limited.
Series Comparison
| Item | EEL12 | EEL16 | EEL22 | EEL25 |
|---|---|---|---|---|
| Core Size Code | EEL12 | EEL16 | EEL22 | EEL25 |
| Relative Profile | Lowest, smallest footprint | Low profile, small footprint | Low profile, medium footprint | Low profile, largest in this series |
| Typical Output Power | Low power auxiliary supply | Low to low-mid power | Mid power | Mid to higher power in the series |
| Typical Pin Count | 4+4 or 5+5 | 4+4 to 6+6 | 5+5 to 7+7 | 6+6 to 8+8 |
| Typical Use | Standby and bias supply, small adapter | Small adapter, sensor supply, LED module | LED driver, adapter, industrial control supply | LED driver, adapter, higher power SMPS |
Common Specifications
| Parameter | Specification |
|---|---|
| Product Type | High frequency switching transformer, EEL low-profile series |
| Available Sizes | EEL12, EEL16, EEL22, EEL25 |
| Core Material | Ferrite, PC40 / PC44 standard; N87 / N97 / PC95 available on request |
| Bobbin Material | UL94V-0 phenolic or PBT, horizontal or vertical type |
| Operating Frequency | 20 kHz to 200 kHz standard; up to 500 kHz with Litz wire and low-loss core |
| Applicable Topology | Flyback, forward, half-bridge, LLC resonant and push-pull |
| Insulation Class | Class B (130°C) or Class F (155°C) standard; Class H (180°C) available |
| Isolation / Hi-Pot | 3000 V AC for 1 minute, primary to secondary; 4000 V AC reinforced isolation on request |
| Operating Temperature | -40°C to +130°C |
Product Features
- Low-profile EEL core keeps the overall height lower than a comparable EE transformer
- Four sizes in one family: EEL12, EEL16, EEL22 and EEL25
- Wide winding window for the core height, allowing good copper fill and reduced winding loss
- Selectable insulation solution: margin tape construction or triple insulated wire
- Controlled air gap ground to the target AL value for consistent energy storage behavior
- Optional sandwich winding to lower leakage inductance
- Full copper winding with controlled tension for consistent performance
- Varnish impregnation suppresses winding movement and resists humidity
- Flexible pin layout matched to your existing PCB footprint
- UL94V-0 flame-retardant materials and RoHS compliance
- 100% electrical testing on every unit before packing
Product Applications
- LED lighting: constant-current LED drivers, downlight and panel light power modules
- Power adapters and chargers: wall-mount adapters, desktop adapters, USB and PD chargers
- Industrial control: PLC power modules, sensor and relay supplies, automation cabinets
- Home appliances: cooker hoods, coffee machines, air purifiers, control boards
- Communication and IT: router and modem supplies, network equipment adapters
- Security and building systems: CCTV cameras, access control panels, alarm systems
- Auxiliary and standby power inside larger equipment
- Instrumentation and medical electronics requiring reinforced isolation
- General purpose AC-DC and DC-DC switch mode power supplies
Company Advantages
- Established in 2000 with 26 years of experience in magnetic components
- Self-owned 10,000 square metre factory in Dongguan with 8 complete production lines
- 20-person R&D team and 20-person QC team
- Complete certification framework: ISO 9001, ISO 14001, CE, CB, UL, cUL and RoHS
- Annual export value of USD 42 million to global markets
- Flexible cooperation: MOQ from 1,000 pcs, DDP and DDU terms supported
Product Advantages
- One supplier covers the whole EEL range for standardization
- Fully customized design matched to your controller IC and requirements
- Low-profile structure saves board height in thin adapters
- Controlled leakage inductance helps lower voltage spikes and EMI
- Consistent gap grinding and winding process reduce inductance drift
- Safety-oriented construction with reinforced isolation options
- Free engineering support before design finalization
Frequently Asked Questions
How long does it take to get a sample?
3-5 working days for new custom samples; 1 day if the sample is in stock.
Who pays the shipping cost for samples?
The freight cost is covered by the customer. We will help you compare couriers and choose the most economical shipping way.
Can you provide technical support for customized products?
Yes. Our in-house R&D team offers free technical support based on your specific requirements.
Which size should I choose?
It depends on your output power, switching frequency and available board space. Send us your specifications and we will recommend the right size.
Can you accept a flexible MOQ?
We support flexible MOQ based on your industry and product characteristics.
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