High-impedance chip beads with lowest DC resistance

High-impedance chip beads with lowest DC resistance

Lowest DC resistance for a chip bead of its size
 20 percent higher impedance than existing chip beads with the same DC resistance
 Compact dimensions of 0.4 mm x 0.2 mm x 0.2 mm
August 29, 2017
TDK Corporation announced the development of the MMZ0402EUC series of chip beads,with the lowest DC resistance for a chip bead its size*. The two new types with their respective impedance values of 150 Ω and 180 Ω at 100 MHz, feature DC resistance values of only 0.62 Ω and 0.69 Ω. This results in a significant reduction in power losses, while at the same time providing excellent noise suppression. In fact, the compact IEC 0402 components with dimensions of 0.4 mm x 0.2 mm x 0.2 mm feature an impedance that is up to 20 percent higher than TDK’s existing MMZ chip beads with the same DC resistance rating. Combined with their higher rated currents of 350 mA and 300 mA compared to existing types, the new MMZ0402EUC chip beads are ideally suited for noise suppression in the power and signal circuits of smartphones, tablets and other mobile devices. Mass production was launched in
August 2017.
The improved ratio of impedance to DC resistance of the new series was achieved thanks to advanced TDK materials. The components can be used in a wide range of temperatures from -55 °C to +125 °C. TDK will continue to expand the available range of impedance values in the compact lineup to meet the requirements for a broad range of mobile device 4designs.
* As of August 2017, according to TDK research
—–
Main applications
 Smartphones, tablets, and other mobile devices
Main features and benefits
 Lowest DC resistance for a chip bead of its size, with values as low as 0.62 Ω
 Impedance of 150 Ω and 180 Ω at 100 MHz is up to 20 percent higher than that of existing chip
beads with the same DC resistance
 Compact dimensions of just 0.4 mm x 0.2 mm x 0.2 mm
 Wide operating temperature range from -55 °C to +125 °C

 

LF-G Relay Introduction

LF-G Relay Introduction

Load for solar inverter, Compact size, 1 From A 22A/33A power relays

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TYPICAL APPLICATIONS

  • Photovoltaic power generation systems (Solar inverter)
  • Uninterruptible Power Supplies (UPS)
  • Home appliances
  • Office equipment

FEATURES

  1. High capacity

High capacity control possible at 22A/33A (High capacity type) 250V AC rating in compact size (L:15.7 ×W: 30.1×H: 23.3 mm L: 0.618 × W: 1.185 × H: 0.917 inch)

  1. Contact gap: 1.5 mm .059 inch and 1.8 mm*** .071 inch

Compliant with European photovoltaic standard (IEC62109* and VDE0126**).

* Safety standard of PV power inverter

**German safety standard of PV power inverter

***Due to addition of altitude stipulation (2,000 m 6,561.68 ft or more) to IEC62109.

EN61810-1 certified: 2.5 kV surge breakdown voltage (between contacts)

  1. Long insulation distance

Creepage distance between contact and coil terminal: Min. 9.5 mm .354 inch

Clearance distance between contact and coil terminal: Min. 6.5 mm .256 inch

Surge breakdown voltage: 6 kV

  1. Coil holding voltage contributes to saving energy of equipment

The coil holding voltage can be reduced up to 35%V of the nominal coil voltage(Ambient temperature: 20°C 68°F).

Power consumption at the lowest coil holding voltage: 170 mW equivalent

*Coil holding voltage is the coil voltage after 100 ms from the applied nominal coil voltage.

*When the ambient temperature during use is 85°C 185°F, make the coil holding voltage between 45% and 80%V of the nominal coil voltage.

  1. Conforms to various safety standards

UL/C-UL and VDE approved

TYPES:

Recommending P/N : ALFG2PF121. (12V DC, 33A)

Standard packing: Carton: 25 pcs.; Case: 100 pcs.

DIMENSIONS (mm inch)

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SAFETY STANDARDS : UL, VDE, RoHS.

I-PEX Micro RF Coax Connector-MHF®4L

I-PEX Micro RF Coax Connector-MHF®4L

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Key Feature:

  1. SMT Receptacle and Cable plug Connector.
  2. Super low profile: 1.2mm to 2.5mm MAX. Mating profile.
  3. Applicable Cable:

φ0.64mm/0.81mm/0.95mm/1.13mm/1.32mm/1.37mm and 1.80mm Coaxial Cable

  1. High productivity and stable performance
  2. Solderless and easy cable termination by “iFit®” technology
  3. Applicable Technology

IEEE802.11 a/b/g/n, WiMAX, Zigbee, Bluetooth, MIMO,WiGig,M.2(MHF®4L) etc.

Specifications:

  1. Frequency Range: DC to 6GHz(V.S.W.R.:1.3MAX at 0.1~3GHz,1.45MAX at 3~6GHz)
  2. Characteristic Impedance: 50 ohm(Nominal)
  3. Temperature: -40 to +90
  4. Rated Voltage: AC 60V
  5. Contact Resistance: 20 ohm MAX.(Signal) and 20 ohm MAX.(Ground)
  6. Withstand Voltage: AC 200V
  7. Insulation Resistance: 500M ohm MIN./DC100V

Major Application(Wireless LAN Antenna):

Mobile Phone/Smart Phone/ Notebook PC/Gaming Device/Access Point

MHF® Series:

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Cable Chart:

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MHF®4L Part NO. : 20579-001E

DIMENSIONS

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FootPrint Pattern:

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