Powertron FHR 4-3825 has 1 recorded cross-reference match across 1 manufacturer. Compare the listed alternatives and check their source notes before selecting a replacement.
Series reference — complete ordering code required. These entries identify product families. Match the complete ordering code, electrical ratings, dimensions and operating conditions using current datasheets before choosing a product.
1recorded matches
1alternate manufacturers
1reference sources
1matches with technical notes
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FHR 4-3825 series references
Two-way recorded relationships. Each source may carry conditions or differences.
Published directional replacement Isabellenhütte → Powertron. Chart describes drop-in use for these model families; this remains a series reference without resistance, tolerance and ordering suffixes. Standard/custom products; individual application verification required. Published comparison only; verify current resistance, tolerance, TCR, power, voltage, pulse behavior, dimensions, temperature, termination, packaging and approvals. Bidirectional discovery does not imply symmetric technical interchangeability.
Counts describe recorded relationships, not stock, sales, testing or independent qualification. Manufacturer-and-part identities remain separate. Indexing dates do not establish current specifications or availability.
Check current manufacturer documents and electrical, mechanical, environmental and application requirements before selecting a replacement.