Lambda / TDK / EMI LQ-520
The Lambda/TDK EMI LQ-520 is a single-stage EMI filter designed to reduce conducted emissions in power supplies and electronic equipment. It provides effective attenuation of common-mode and differential-mode noise, ensuring compliance with EMC standards. Compact and easy to install, it is ideal for various applications.
- Model
- Lambda / TDK LQ-520
- Calibration
- Available on request
- Price
- $340
- Status
- In stock
- RFQ ref
- LQ-520
This unit
The Lambda/TDK EMI LQ-520 is a regulated DC power supply for bench and rack-mount laboratory and test equipment applications. This convection-cooled unit delivers precise voltage and current regulation with exceptional ripple performance, meeting EMC standards without requiring external cooling. Front-panel metering, dual voltage adjustment controls, and remote sensing capability make it suitable for demanding ATE and industrial test environments requiring stability and low noise output.
Technical Specifications
Input & Output- Input voltage: 105–132 VAC standard (47–440 Hz); Options V (187–242 VAC) and V1 (205–265 VAC) available
- Output regulation (line): ±0.005% + 0.5 mV across specified input range
- Output regulation (load): ±0.005% + 0.5 mV from 0 to full load
- Voltage adjustment: 1% to maximum output via internal potentiometers; coarse and fine front-panel controls
- Current limiting: Adjustable from zero to Imax with constant current crossover at 1% Iout
- Ripple and noise (20 MHz BW): 1 mV pk-pk, 150 µV RMS
- Temperature coefficient: ±(0.005% Vo + 10 µV)/°C Mechanical & Thermal
- Dimensions: 5-3/16" H × 4-3/16" W × 15-1/2" D
- Weight: 14 lbs net, 18 lbs shipping
- Operating temperature: 0°C to 60°C continuous (derating above 30°C)
- Storage temperature: -55°C to +85°C
- Cooling: Convection; no fans required Protection & Interfaces
- Thermal protection: Self-resetting thermostat
- Electrical protection: Adjustable current limiting and primary/secondary fuses
- Input connections: Rear barrier strip
- Output connections: Five-way front-panel binding posts
- Remote sensing provided to eliminate lead resistance effects
Key Features
- Digital metering with METER SELECTION switch for voltage or current monitoring
- Front-panel power on-off switch and single-turn current adjustment
- Compact convection-cooled design for noise-sensitive applications
- Dual-range input voltage options accommodate international standards
- Output derating: 10% at 50 Hz
Typical Applications Laboratory power systems, automated test equipment (ATE), industrial bench testing, and bench-top instrumentation requiring high regulation accuracy and low output noise.
Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 47–440 Hz | Voltage / Current Range: 105–132 VAC input (standard) |
| Options V | 187–242 VAC |
| V1 | 205–265 VAC |
Lambda / TDK LQ-520 — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Lambda / TDK LQ-520. All calibrations are performed to NIST-traceable standards and ship with a certificate. Turnaround is typically 1–3 business days after receipt.
Lambda / TDK LQ-520 price
This Lambda / TDK LQ-520 is listed at $340. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Lambda / TDK LQ-520 calibration cost
NIST-traceable calibration for the Lambda / TDK LQ-520 is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Turnaround is 1 to 3 business days after receipt. See full calibration details →
