LFUS
Littelfuse, Inc.
Is LFUS Halal?
Circuit-protection components, power semiconductors, and sensors — permissible specialty-electronics business.
What You Should Know
Littelfuse is a US designer and manufacturer of circuit-protection, power-semiconductor, and sensor products organized into three reporting segments: Electronics (fuses, transient-voltage suppressors, electrostatic-discharge protection, polymer positive-temperature-coefficient resettable devices, and power semiconductors for industrial-electronics, telecom, data-center, consumer-electronics, and electric-vehicle end markets), Transportation (automotive fuses and circuit protection, sensors, and switching products for passenger and commercial vehicles), and Industrial (industrial-grade fuses, relays, and protection-relay products for industrial-power-distribution and renewable-energy infrastructure end markets). Circuit-protection components, power semiconductors, and sensors are unambiguously permissible at the activity level. Littelfuse operates a high-quality industrial balance sheet with manageable debt and strong free-cash-flow generation; the debt-to-market-cap ratio sits well below the 33% Sharia threshold across the cycle, even after sizable acquisitions including the 2021 Carling Technologies and the 2022 Embed Power Solutions deals. The qualitative screen passes cleanly across major Sharia advisory boards. Muslim investors should verify the current ratios at their preferred screening platform.
⚠️ Concerns
- •Latest total-assets debt screen passes at 16.37%; market-cap denominator is not calculated without a licensed historical series
- •Basler acquisition integration and acquisition debt
- •Cyclical exposure to the automotive, industrial, and consumer-electronics circuit-protection cycle (business-quality consideration rather than Sharia screen concern)
- •Some end-market exposure to aerospace and defense customers via the industrial-electronics business (general-purpose circuit-protection components, not weapons systems)
- •Gross interest income is not separately disclosed
- •Customer concentration with a small group of large automotive-tier-1 and industrial-distribution customers
Current quantitative Sharia screen
Based on 10-Q figures for the period ended 2026-03-28; calculated 2026-07-13.
631.532 / 3,857.551
481.976 / 3,857.551
862.66 / 3,857.551
- Financial
- Incomplete
- Overall
- Incomplete
Debt/assets is 16.37%, liquidity/assets is 12.49% and receivables plus cash/assets is 22.37%; gross interest income and screened business revenue remain unavailable.
- Financial
- Pass
- Overall
- Incomplete
Debt/assets, liquidity/assets and receivables plus cash/assets are below the examined total-assets limits; this is not an index-membership claim and income disclosure remains incomplete.
- Financial
- Pass
- Overall
- Incomplete
Debt/assets and identifiable conventional cash and instruments are below the examined Malaysia SAC limits; this is not an official SAC classification.
- Financial
- Not calculated
- Overall
- Not calculated
No licensed historical market-cap series is stored.
Business-activity disclosure
Littelfuse designs circuit-protection, power-semiconductor and sensor products across electronics, transportation and industrial segments. These general-purpose components are generally permissible; acquisition integration and aerospace/defense customer exposure remain qualitative context.
Limitation: The filing does not separately disclose gross interest income or a universal prohibited-activity revenue numerator.
Purification
Gross interest income is not separately quantified; ZakatInvest does not assert a purification percentage.
Inputs, assumptions and primary sources
- Amounts are USD millions from Littelfuse's March 28, 2026 Form 10-Q.
- Total debt is $631.532 million, including revolving credit, senior notes and other debt net of issuance costs.
- Cash is $481.697 million, short-term investments are $0.279 million, and trade receivables are $380.963 million.
- Quarterly net sales are $656.969 million. Interest expense is disclosed, but gross interest income is not separately disclosed.
This is a reproducible financial screen, not a fatwa. A failed total-assets screen can coexist with a pass under a market-cap methodology. ZakatInvest keeps the qualitative assessment separate so numerical thresholds do not erase material context.
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