Equivalent & Substitute Parts for Würth Elektronik 782631111

Part Overview

The Würth Elektronik 782631111 is a single-line ferrite bead component designed for signal line filtering applications. This 0603 (1608 Metric) surface mount ferrite bead operates at 100 Ohms impedance at 100 MHz with a maximum current rating of 500mA and DC resistance of 120mOhm. The component is classified as Active product status and carries AEC-Q200 automotive qualification. Substitute parts are identified when equivalent mechanical packaging, electrical performance windows, and compliance certifications align with application requirements, enabling component procurement flexibility and supply chain continuity.

Substiute Parts

782631111

Würth ElektronikIn Stock: 4360782631111 Datasheet

Current PartRFQ

782631131

Würth ElektronikIn Stock: 7407782631131 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 782631111 ferrite bead is determined by the following critical parameters:

Mechanical Compatibility:

• Package / Case: 0603 (1608 Metric)
• Mounting Type: Surface Mount
• Height (Max): 0.039" (1.00mm)
• Size / Dimension: 0.063" L x 0.031" W (1.60mm x 0.80mm)

Electrical Performance Window:

• Filter Type: Signal Line
• Number of Lines: 1
• Current Rating (Max): 500mA
• DC Resistance (Max): 120mOhm
• Operating Temperature Range: -55°C ~ 125°C

Compliance & Certification:

• Series: WE-CBA
• Ratings: AEC-Q200
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected

The impedance value at 100 MHz is permitted to vary within the substitute group while maintaining all other parameters. Substitute parts must match all mechanical, thermal, current, and compliance specifications to ensure direct interchangeability in PCB assembly and functional operation.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: 782631111

The 782631111 is the specified component with Active product status and full AEC-Q200 automotive qualification. This part is suitable for applications requiring 100 Ohms impedance at 100 MHz in 0603 surface mount form factor.

Substitute Part: 782631131

The 782631131 is a direct mechanical and thermal substitute with identical package dimensions, current rating, DC resistance, and compliance certifications. The primary difference is the impedance specification of 120 Ohms @ 100 MHz compared to 100 Ohms @ 100 MHz in the main part. Both components maintain Active product status and AEC-Q200 qualification. Selection between these parts depends on the specific impedance requirement of the application circuit. The 782631131 offers higher impedance filtering characteristics within the same physical and electrical envelope.

Both parts are ROHS3 compliant, carry MSL 1 (Unlimited) moisture sensitivity rating, and are REACH Unaffected, ensuring compliance with environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the 782631131 be used as a direct replacement for the 782631111?

A: The 782631131 is mechanically and thermally interchangeable with the 782631111 in terms of PCB footprint, mounting, and thermal performance. The impedance differs at 120 Ohms versus 100 Ohms at 100 MHz. Substitution is valid only if the application circuit design accommodates the higher impedance value.

Q: Are both parts qualified for automotive applications?

A: Both the 782631111 and 782631131 carry AEC-Q200 qualification, confirming suitability for automotive-grade applications.

Q: What is the difference in DC resistance between these parts?

A: Both parts specify a maximum DC resistance of 120mOhm. DC resistance is identical between the main part and substitute.

Q: Do these ferrite beads require special handling during assembly?

A: Both parts carry Moisture Sensitivity Level (MSL) 1, classified as Unlimited. Standard surface mount assembly processes are applicable without special moisture control requirements.

Q: Are there any compliance or regulatory differences between these parts?

A: Both parts are ROHS3 compliant and REACH Unaffected. No compliance or regulatory differences exist between the 782631111 and 782631131.

Q: What is the maximum current these ferrite beads can handle?

A: Both the 782631111 and 782631131 are rated for a maximum current of 500mA.

Q: Can these parts operate across the full automotive temperature range?

A: Both parts are specified for operation from -55°C to 125°C, covering the full automotive temperature range.