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The AC series is the perfect choice for general purpose power applications. The AEC-Q200 qualified AC-AT series is best suited for automotive applications. The robust silicone cement coating can handle challenging ambient and operating conditions. Typical applications include but are not limited to energy meters, power supplies and automotive electronics. For a given application, requirements of ohmic value, rated power, peak voltage, pulse shape, pulse duration, lead bending, and environmental conditions may be submitted to recommend the most suitable product. Various lead forms are available such as RT (radial taped), WSZ (Z-form), DK (double kink), EK (single kink) with defined mounting pitch.
Unit of Measure

Specifications

Available

 N/A {0}

Manufacturer Stock

 N/A {0}

Brands

 N/A VISHAY®

Manufacturer

 N/A VISHAY�

Industry Standards

 N/A Restriction of Hazardous Substances (RoHS) Compliant

Type

 N/A AC05

Electrical Specifications

Rated Dissipation P40

 N/A 5 W

Rated Dissipation P70

 N/A 4.7 W

Limiting Voltage UMAX

 N/A √ P x R

Resistance Range Temperature Coefficient of Resistance (TCR) at -10 to -80 Parts Per Million Per Degree Kelvin (ppm/K)

 N/A 0.10 to 910 Ω

Resistance Range Temperature Coefficient of Resistance (TCR) at 100 to 180 Parts Per Million Per Degree Kelvin (ppm/K)

 N/A 1 to 10 kΩ

Resistance Tolerance (±)

 N/A 5 %

Dimensions

Maximum Dimension L

 N/A 18 mm

Maximum Dimension D

 N/A 7.5 mm

Dimension d

 N/A 0.8 mm

Dimension D Tolerance (±)

 N/A 0.03 mm

Maximum Dimension X

 N/A 3 mm

Dimension B

 N/A 63 mm

Dimension B Tolerance (±)

 N/A +1 mm

Mass Per Unit

 N/A 1.90 g

Features

Features

 N/A
  • AEC-Q200 qualified AC-AT series
  • High power dissipation in small design
  • Non-flammable coating conforming to UL 94 V-0
  • Excellent pulse load capability
  • Non-inductive (NI) version available
  • WSZ-form lead bending available for SMD mounting

Applications

Applications

 N/A
  • Automotive electronics
  • Industrial electronics
  • Power supplies
  • White goods
  • Pre-charging / discharging applications

Additional Information

Additional Information

 N/A Wirewound resistors are best suited for use in high power, high current applications. The silicone cement lacquer coating enables AC series to withstand challenging operating and environmental conditions. The coating is resistant to cleaning solvents specified in IEC 60115-1 (Other cleaning solvents with aggressive chemicals should be evaluated in actual cleaning process for their suitability). Production is strictly controlled and follows an extensive set of instructions established for reproducibility.

The winding is done with a specific material on a specially developed fine ceramic body (Al2O3). The ceramic meets the highest requirements against mechanical resistance, thermal shocks, dielectric strength, and insulation resistance at high temperatures. With different diameters and turn spacings of resistive wire, a large ohmic value range can be covered.

The resistors are marked with resistance, rated dissipation (P40) and tolerance. Product quality is verified by testing procedures, performed on all individual resistors. Resistance is measured on the lead wires at a distance of 6 mm from the resistor body. If a greater length of lead wire is used in the application, the user may need to consider the additional wire resistance, particularly with low resistance products.

Materials

Material

 N/A VISHAY® acknowledges the following systems for the regulation of hazardous substances
  • IEC 62474, Material Declaration for Products of and for the Electrotechnical Industry, with the list of declarable substances given therein (The IEC 62474 list of declarable substances is maintained in a dedicated database)
  • The Global Automotive Declarable Substance List (GADSL) (The Global Automotive Declarable Substance List (GADSL) is maintained by the American Chemistry Council)
  • The REACH regulation (1907/2006/EC) and the related list of substances with very high concern (SVHC) (The SVHC list is maintained by the European Chemical Agency (ECHA)) for its supply chain
The products do not contain any of the banned substances as per IEC 62474, GADSL, or the SVHC list, Hence the products fully comply with the following directives:
  • 2000/53/EC End-of-Life Vehicle Directive (ELV) and Annex II (ELV II)
  • 2011/65/EU Restriction of the Use of Hazardous Substances Directive (RoHS) with amendment 2015/863/EU
  • 2012/19/EU Waste Electrical and Electronic Equipment Directive (WEEE)
VISHAY® pursues the elimination of conflict minerals from its supply chain

Assembly

Assembly

 N/A The resistors are axial leaded for soldering. The terminals of the resistors are completely lead (Pb)-free, the special tin plating provides compatibility with lead (Pb)-free and lead-containing soldering processes.

Special lead forms may be available on request. As these components are high power dissipation resistors, customers are advised to use a high melting point solder.

Application Information

Application Information

 N/A The power dissipation of the resistor generates a temperature rise with respect to the ambient. The permissible dissipation is derated for temperatures above 40ºC, as shown in the derating diagram, in order to avoid overheating of the resistor. The heat dissipated from the resistor may affect adjacent components, hence proper clearance will be required in order to avoid overheating. The resistive wire is encapsulated by a protective lacquer coating.

All materials used are non-flammable and inorganic.

These resistors do not feature a limited lifetime when operated within the permissible limits. However, resistance value drift increasing over operating time may result in exceeding a limit acceptable to the specific application, thereby establishing a functional lifetime.

Safety Agency Approvals

Approvals

 N/A AC-AT series is AEC-Q200 qualified, specifically for the use in automotive applications. It is currently available only for standard axial taped parts and for AC03AT-WSZ, AC05AT-WSZ.

Contact us for the availability of AC-AT in other lead termination bending forms.

Note

Note

 N/A The operating temperature range for these resistors is from -55ºC up to 250ºC
Manufacturing at different production locations may involve use of differently sized box
Pb-Free
Halogen-Free