Technical data, tools and notes for refrigeration and electronics technicians.

Panasonic SFK51C94RPX Compressor Specs and Replacements mbsmpro
20, Feb 2026
Panasonic SFK51C94RPX Compressor Specs and Replacements
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R134a, refrigerant, compressor SFK51C94RPX, 220V 50Hz, LBP, 1/6 hp

Description

Mbsm.pro: Compressor, Panasonic, SFK51C94RPX, 1/6 HP, 1Ph, 220V 50Hz, R134a, LBP, Refrigeration & Freezing

Technical Specifications Table

FeatureDetails
ModelSFK51C94RPX
ManufacturerPanasonic Corporation
OriginMade in Singapore
UtilisationLBP (Low Back Pressure)
DomaineDomestic Refrigerators / Freezers
Cooling Wattage at -23.3°C157 W (ASHRAE)
Cubic Feet Capacity5 to 8 cu. ft. (Depending on insulation)
Litres Capacity150 to 250 Liters
Kcal/h135 Kcal/h
TON~0.045 Tons
Oil Type and QuantityMineral Oil or POE, 280-320 ml
Horsepower (HP)1/6 HP
Refrigerant TypeR134a
Power Supply220V / 50Hz / 1Ph
Cooling Capacity BTU535 BTU/h
Motor TypeRSCR (Resistance Start Capacitor Run)
Displacement5.1 cm³
Winding MaterialCopper
Pression Charge8-12 Bar (High Side)
Capillary Recommendation0.028″ or 0.031″ (Length varies by application)
Compatible AppliancesSmall to medium refrigerators, freezers, beverage coolers
Temperature Function-35°C to -5°C
With Fan or NoYes (Fan cooling required for compressor)
Commercial or NoDomestic Grade
Amperage (FLA)1.0 A to 1.3 A
LRA (Locked Rotor Amps)5.0-6.0 A
Type of RelayPTC Relay with Run Capacitor
COP1.35 W/W
Thermal ProtectionYes (Internal Thermal Protector)
Net Weight6.0-7.0 kg

Efficiency Metrics (COP) Table

Performance varies based on operating conditions. Here is how the SFK51C94RPX performs across the temperature spectrum:

Evaporating Temp (°C)Cooling Capacity (Watts)Power Consumption (Watts)COP (W/W)
-251351251.08
-201651351.22
-152001451.38
-102401551.55
-52851651.73
03351751.91
53901852.11

Replacement Models

BrandModel Number
PanasonicSFK51C94RPX
PanasonicQB51C99GLX5
PanasonicDGH51C90RAX
PanasonicSF Series variants

5 Replacements (Same R134a Gas)

  1. Embraco NEK6196Z (Strong alternative, 1/6 HP, 6.5cc)
  2. Tecumseh THG1352YLS (Classic reliable swap, 1/6 HP) everwellparts.com
  3. Cubigel GL60AA (Excellent domestic equivalent, 5.99cc) frigopartners.com
  4. Danfoss SC10G (Similar capacity, 10cc displacement)
  5. Huayi HYE11YG (Budget-friendly alternative, 1/6 HP)

5 Replacements (Other Gas – R600a/R404A)

Note: Requires complete system flush and expansion valve/capillary adjustment.

  1. Embraco EGU80HLP (R600a – Isobutane, very efficient, 1/6 HP)
  2. Danfoss SC10CNX (R290 – Propane, high efficiency)
  3. Tecumseh CAJ9480Z (R404A – Higher capacity)
  4. Secop NL9FK (R600a compatible variant)
  5. Cubigel HM60AA (R600a – Energy efficient)

Key Features

  • Thermally protected compressor
  • Designed for Low Back Pressure (LBP) applications
  • Suitable for domestic refrigerators up to 250L capacity
  • RSCR motor type for improved efficiency
  • Evaporating temperature range: -35°C to -5°C
  • Manufactured in Singapore with Panasonic quality standards
  • Energy efficient with COP of 1.35 okmarts.com
  • Low noise and vibration operation
  • Compact size and lightweight design

Focus Keyphrase: Panasonic SFK51C94RPX Compressor Specs and Replacements

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Meta Description: Looking for SFK51C94RPX specs? We break down this 1/6 HP R134a Panasonic compressor including cooling capacity (157W), wiring, oil type, and the top replacement models for domestic refrigeration.

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Tags: Mbsmgroup, Mbsm.pro, mbsmpro.com, mbsm, Panasonic, SFK51C94RPX, SF Series, R134a, 1/6 HP, LBP, Low Back Pressure, NEK6196Z, THG1352YLS, GL60AA, SC10G, Compressor Replacement, HVAC, Refrigeration Repair, Domestic Refrigerator, Singapore

Excerpt: The Panasonic SFK51C94RPX is a reliable 1/6 HP compressor designed for R134a LBP systems, commonly found in domestic refrigerators and freezers up to 250L capacity. This guide provides the full technical data sheet, including cooling capacity (157W at ASHRAE), oil requirements (280-320ml), and a comprehensive list of compatible replacements for both R134a and modern alternative refrigerants to ensure your repair is successful.


Panasonic SFK51C94RPX Compressor Specs and Replacements mbsmpro
Panasonic SFK51C94RPX Compressor Specs and Replacements mbsmpro

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