The Vishay Dale CMF55750R00GKRE is a metal film through-hole resistor delivering 750 ohms resistance at ±2% tolerance in an axial-leaded package. Designed within the CMF series, this half-watt component combines stable electrical performance with ruggedized environmental protection for applications where precision, thermal reliability, and flame safety converge.
Metal film resistors are favored in circuits requiring low noise and predictable drift characteristics. The CMF55750R00GKRE achieves a ±100 ppm/°C temperature coefficient, supporting stable operation across analog signal conditioning, audio amplification, and precision voltage divider networks where resistance shifts must remain minimal under thermal cycling. The 750-ohm value suits a range of biasing and impedance-matching roles, from operational amplifier feedback paths to sensor interface circuits and LED current regulation.
Power handling is rated at 0.5 W continuous dissipation, and the component operates reliably from -55°C to 175°C, enabling deployment in both commercial and extended-temperature industrial systems. The axial body measures 0.090 inches in diameter by 0.240 inches in length (2.29 mm × 6.10 mm), providing compatibility with standard through-hole board layouts and allowing sufficient lead spacing for hand assembly or automated insertion.
The resistor features flame retardant and moisture-resistant coatings that protect the metal film element from humidity ingress and thermal exposure. The flame retardant layer addresses safety requirements in equipment subject to UL or IEC flammability standards, while moisture resistance supports long-term stability in harsh or uncontrolled environments. These protective features make the component suitable for power supplies, motor controllers, and outdoor instrumentation where environmental stress accelerates degradation in unprotected resistors.
Vishay Dale supplies the CMF55750R00GKRE in tape and reel packaging, facilitating high-volume pick-and-place workflows. The part is currently marked obsolete, and designers incorporating this device into new projects should evaluate migration paths to active alternatives within the CMF55 or CMF70 families. Substitute candidates include the CMF55750R00FHBF and CMF70750R00BEBF, which offer similar resistance values and tolerance grades with comparable thermal and mechanical characteristics. RoHS compliance status is noted as non-compliant, and REACH classification indicates the component is affected, requiring due diligence in regulatory documentation for export and end-use markets.
For engineers sourcing axial metal film resistors with 750 ohms resistance, half-watt dissipation, and environmental robustness, the CMF55750R00GKRE represents a proven solution where circuit density, thermal performance, and protective coatings align with legacy design requirements.
CMF55750R00GKRE (1)
Replacement Planning for Vishay Dale CMF55750R00GKRE 750 Ohm Axial Resistors
When Vishay Dale CMF55750R00GKRE becomes obsolete, unavailable, or unsuitable for compliance requirements, selecting a replacement is not just a matter of matching “750 ohm resistor.” The substitute must be checked against resistance value, tolerance, power rating, temperature coefficient, package size, lead style, coating system, reliability expectations, and regulatory status. In older through-hole assemblies, mechanical fit and thermal behavior can be as relevant as the nominal resistance.
The listed equivalent and alternative part numbers for CMF55750R00GKRE include:
- CMF55750R00FHBF
- CMF70750R00BEBF
- CMF55750R00FKR6
- CMF70750R00FKBF
- CMF55750R00GKEA
These alternatives remain within the Vishay Dale CMF metal film resistor family, which makes them practical candidates for a CMF55750R00GKRE replacement. However, they are not automatically interchangeable in every circuit. CMF55-based options are generally closer mechanical and power-class matches, while CMF70-based options may offer higher power capability but require more board space and different thermal review.
What CMF55750R00GKRE from Vishay Dale Defines in the Original Design
CMF55750R00GKRE is a Vishay Dale CMF series axial through-hole metal film resistor specified as 750 ohms, ±2% tolerance, 0.5 W power rating, and ±100 ppm/°C temperature coefficient. It uses an axial package with an approximate body size of 0.090 inch diameter by 0.240 inch length, and it is described with flame-retardant coating, moisture resistance, and safety-oriented construction.
| Specification Area | CMF55750R00GKRE Characteristics | Replacement Impact |
|---|---|---|
| Resistance | 750 ohms | Replacement should normally remain 750 ohms unless the circuit design allows recalculation |
| Tolerance | ±2% | A tighter tolerance, such as ±1%, is usually acceptable electrically; a wider tolerance may affect biasing, sensing, or calibration |
| Power Rating | 0.5 W / 1/2 W | Substitute must dissipate equal or greater power under actual ambient and derating conditions |
| Technology | Metal film | Maintains low noise, stable resistance, and predictable temperature behavior compared with carbon film alternatives |
| Temperature Coefficient | ±100 ppm/°C | Relevant in analog, timing, measurement, and bias networks exposed to temperature variation |
| Package | Axial through-hole | Replacement must fit lead spacing, body clearance, and assembly process |
| Features | Flame-retardant coating, moisture resistant, safety | Useful in industrial, power-control, and long-life assemblies |
| Compliance | RoHS non-compliant; REACH affected | May require review if the assembly is being updated for current environmental compliance |
The original part is typically used in analog signal conditioning, voltage dividers, current limiting, bias networks, feedback paths, industrial controls, instrumentation, and legacy through-hole power or control boards. In these applications, replacement suitability depends on how the resistor is stressed. A 750 ohm resistor in a low-current logic pull path has different substitution risk than the same value in a high-voltage divider or power dissipation position.
For a direct CMF55750R00GKRE equivalent, the closest candidates are usually CMF55 parts with the same resistance and equal or tighter tolerance. CMF70 alternatives may be selected when additional power margin is desired, but board layout and lead forming must be reviewed before approval.
Evaluating Vishay Dale CMF55750R00GKRE Replacement Candidates
The following table compares the supplied substitute part numbers as engineering replacement candidates. Exact ordering-code details such as packaging, lead finish, and compliance status should be confirmed against the latest Vishay documentation before production release.
| Manufacturer | Part Number | Key Specifications | Product Features | Typical Applications | Why It Can Replace CMF55750R00GKRE | Main Differences or Limitations | Recommended Usage |
|---|---|---|---|---|---|---|---|
| Vishay Dale | CMF55750R00FHBF | 750 ohm, CMF55 axial metal film, likely 0.5 W class, tighter tolerance than ±2% depending on ordering code | Metal film stability, axial through-hole body, flame-retardant style CMF construction | Analog biasing, divider networks, instrumentation boards, industrial control PCBs | Same CMF55 family and same 750 ohm resistance make it a close electrical and mechanical replacement | Tolerance and lead finish/compliance may differ from the obsolete original; confirm temperature coefficient code | Preferred direct replacement when tighter tolerance is acceptable and CMF55 body size is required |
| Vishay Dale | CMF70750R00BEBF | 750 ohm, CMF70 axial metal film, higher power class than CMF55 family, tolerance depends on code | Larger axial resistor body, improved dissipation capability, metal film behavior | Power margin upgrades, high-reliability control boards, circuits with elevated resistor temperature | Same resistance value and same CMF technology; higher power capability can reduce thermal stress | Larger body may not fit original CMF55 footprint; tolerance may differ and must be checked | Use when power derating margin is more valuable than exact mechanical match |
| Vishay Dale | CMF55750R00FKR6 | 750 ohm, CMF55 axial metal film, likely 0.5 W class, tighter tolerance than original depending on code | Same CMF55 platform, through-hole axial mounting, stable metal film element | Legacy board repair, production substitution, analog and industrial resistor networks | Same family, same value, and similar package class support direct substitution in many designs | Packaging code and compliance status may differ; verify reel/bulk format for assembly process | Good candidate for form-fit replacement where CMF55 dimensions and 750 ohm value are required |
| Vishay Dale | CMF70750R00FKBF | 750 ohm, CMF70 axial metal film, higher power class, tolerance likely tighter than original depending on ordering code | Higher dissipation CMF70 body, metal film precision, axial construction | Higher-stress divider legs, current limiting, equipment exposed to higher ambient temperature | Same resistance and metal film construction; increased power rating can improve derating | Larger package can affect spacing, creepage, airflow, and automated insertion compatibility | Select for thermal headroom if the PCB has sufficient physical clearance |
| Vishay Dale | CMF55750R00GKEA | 750 ohm, CMF55 axial metal film, same nominal tolerance class as original if “G” corresponds to ±2% | Closest CMF55-style configuration among listed options, axial through-hole format | Maintenance of legacy assemblies, controlled substitution where original tolerance class is preferred | Same resistance, same CMF55 family, and likely same ±2% tolerance class make it a close match | Suffix may indicate different packaging or lead finish; compliance status must be confirmed | Strong candidate for legacy replacement when matching the original tolerance class is preferred |
Among these options, CMF55750R00FHBF, CMF55750R00FKR6, and CMF55750R00GKEA are the most natural starting points for a CMF55750R00GKRE equivalent because they remain in the CMF55 body class. CMF70750R00BEBF and CMF70750R00FKBF should be treated as functional alternatives rather than automatic drop-in replacements because CMF70 devices generally occupy more space while offering better power handling.
Comparing CMF55750R00GKRE Alternatives for Real-World Substitution Decisions
| Replacement Choice | Electrical Compatibility | Mechanical Compatibility | Performance Difference | Reliability and Thermal Considerations | Package / Availability Considerations | Advantages | Limitations | Best-Fit Scenario |
|---|---|---|---|---|---|---|---|---|
| CMF55750R00FHBF | Strong match: same 750 ohm value; likely tighter tolerance than original | Strong if CMF55 body and lead form match the PCB | Tighter tolerance can improve divider accuracy or bias repeatability | Similar CMF55 thermal class; evaluate 0.5 W derating at operating temperature | Confirm packaging and lead finish against production requirements | Close electrical and mechanical substitute | May not preserve exact original tolerance/compliance profile | Direct CMF55750R00GKRE replacement where improved tolerance is acceptable |
| CMF70750R00BEBF | Same resistance value; tolerance must be reviewed | Moderate: CMF70 body may be larger than original CMF55 | Higher power class may reduce operating temperature | Better power margin if board space and airflow allow | Larger body may affect automated assembly and lead spacing | Useful for thermal upgrade | Not ideal for dense boards designed around CMF55 dimensions | Replacement in higher-dissipation or higher-ambient applications |
| CMF55750R00FKR6 | Strong match: same value and CMF55 platform | Strong for most CMF55 axial layouts | Likely tighter tolerance than original, depending on code | Similar thermal behavior to original CMF55 part | Packaging code may differ from original tape and reel requirement | Practical form-fit substitute | Confirm suffix details before production approval | Legacy repair or production build requiring CMF55 footprint |
| CMF70750R00FKBF | Same 750 ohm value with likely tighter tolerance | Moderate: larger CMF70 footprint requires layout check | Higher power capability and potentially improved derating | Lower temperature rise possible at the same load if mounted correctly | May require different storage, insertion, or forming setup | Good for power-margin redesigns | Mechanical mismatch risk versus original CMF55 | Use when electrical stress analysis shows limited margin with 0.5 W parts |
| CMF55750R00GKEA | Strong match: same value and likely same ±2% tolerance class | Strong if suffix does not change usable lead form | Closest tolerance behavior to original among listed CMF55 options | Similar CMF55 dissipation and coating family | Verify environmental compliance and lead finish | Closest legacy-style replacement candidate | May share obsolete or non-RoHS concerns depending on exact version | Maintenance of older assemblies where original behavior should be preserved |
For most direct replacement work, CMF55750R00FHBF, CMF55750R00FKR6, and CMF55750R00GKEA should be evaluated first because they preserve the CMF55 axial resistor format. If the original CMF55750R00GKRE operated near its power limit, CMF70750R00BEBF or CMF70750R00FKBF may offer better thermal margin, provided the PCB has enough clearance and the assembly process can accommodate the larger axial body.
Before final approval, compare the latest datasheets for resistance tolerance, temperature coefficient, power derating curve, body dimensions, coating type, lead finish, RoHS/REACH status, and packaging format. For quotations and sourcing support for CMF55750R00GKRE replacement parts, request pricing through IC-Components.com or email Info@IC-Components.com.
