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QPI-12LZ The Vicor QPI-12LZ is an Input EMI Filter designed for Vicor VI Chip DC-DC Converters. It offers high attenuation for common-mode and differential-mode noise.
Mfr Part #:

QPI-12LZ

Available from 2 distributors
Mfr Name: Vicor
Vicor
The Vicor QPI-12LZ is an Input EMI Filter designed for Vicor VI Chip DC-DC Converters. It offers high attenuation for common-mode and differential-mode noise.
Total Stock: 2,446 pcs

QPI-12LZ Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
2,430 pcs
2430 pcs On Request 1 On Request On Request 1539+ On Request On Request
Non-Authorised Inventory information
16 pcs
16 pcs On Request 1 On Request On Request On Request On Request On Request

QPI-12LZ Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Accessory Type
Common Mode Attenuation
Current Rating
Differential Mode Attenuation
Efficiency
For Use With
Hipot Hold Off
Input Voltage
Lead Spacing
Lead Style
PCB Temperature
SVHC Present
Storage Temperature
Surge Voltage
Tape & Reel

QPI-12LZ Description

Short technical summary and product information.

The Vicor QPI-12LZ is an Input EMI Filter specifically engineered to work with Vicor VI Chip products, including PRM™, VTM™, and BCM® converters. This filter is designed to attenuate conducted common-mode (CM) and differential-mode (DM) noise, helping systems comply with standards like CISPR22 and EN55022 Class B.

 

Key electrical specifications include a maximum input voltage of 80 VDC with a 100 VDC surge capability for 100ms. It is rated for 7A loads and provides significant attenuation: 45 dB for common mode and 75 dB for differential mode, both measured at 1MHz with a 50Ω impedance. The filter also features a 1,500 VDC hipot hold-off to the shield plane.

 

Designed for thermal management, the QPI-12LZ supports a PCB temperature range of -40°C to +125°C. It boasts an efficiency of over 99%, minimizing power loss. The component is housed in a low-profile LGA package, measuring 12.9 x 25.3 x 5.0mm, and is a System-in-Package (SiP) design.

 

This filter is suitable for applications in telecom and ATCA boards, ensuring filtered system boards meet stringent noise requirements. It is TÜV Certified, adding a layer of safety and reliability for critical applications.

QPI-12LZ Quick Information

Product Type: EMI Filter
Series: VI Chip®
Canonical Name: Vicor QPI-12LZ EMI Filter SiP

QPI-12LZ Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: Compliant

QPI-12LZ Features

  • Provides 45dB CM attenuation at 1MHz.
  • Offers 75dB DM attenuation at 1MHz.
  • Supports 80VDC maximum input voltage.
  • Rated for 7A current load.
  • Operates at -40 to +125°C PCB temperature.

QPI-12LZ Applications

  • Filters Vicor VI Chip DC-DC converters.
  • Used in telecom and ATCA boards.
  • Meets CISPR22 noise standards.
  • Suitable for high-efficiency power systems.

QPI-12LZ FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum input voltage for the Vicor QPI-12LZ EMI Filter?

The maximum input voltage is 80 VDC, with a surge capability of 100 VDC for 100ms.

What is the current rating of the QPI-12LZ EMI Filter?

The current rating is 7 A.

How much common mode and differential mode attenuation does the QPI-12LZ provide?

It provides 45 dB common mode attenuation and 75 dB differential mode attenuation at 1MHz (50Ω).

What is the operating temperature range for the PCB temperature?

The PCB temperature range is -40°C to +125°C.

What type of package does the Vicor QPI-12LZ use?

It uses a low-profile LGA package, also described as a lidded SiP (System-in-Package).

What is the efficiency of the QPI-12LZ EMI Filter?

The efficiency is greater than 99%.

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