Refrigeration
Panasonic SFK51C94RPX Compressor Specs and Replacements
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
| Feature | Details |
|---|---|
| Model | SFK51C94RPX |
| Manufacturer | Panasonic Corporation |
| Origin | Made in Singapore |
| Utilisation | LBP (Low Back Pressure) |
| Domaine | Domestic Refrigerators / Freezers |
| Cooling Wattage at -23.3°C | 157 W (ASHRAE) |
| Cubic Feet Capacity | 5 to 8 cu. ft. (Depending on insulation) |
| Litres Capacity | 150 to 250 Liters |
| Kcal/h | 135 Kcal/h |
| TON | ~0.045 Tons |
| Oil Type and Quantity | Mineral Oil or POE, 280-320 ml |
| Horsepower (HP) | 1/6 HP |
| Refrigerant Type | R134a |
| Power Supply | 220V / 50Hz / 1Ph |
| Cooling Capacity BTU | 535 BTU/h |
| Motor Type | RSCR (Resistance Start Capacitor Run) |
| Displacement | 5.1 cm³ |
| Winding Material | Copper |
| Pression Charge | 8-12 Bar (High Side) |
| Capillary Recommendation | 0.028″ or 0.031″ (Length varies by application) |
| Compatible Appliances | Small to medium refrigerators, freezers, beverage coolers |
| Temperature Function | -35°C to -5°C |
| With Fan or No | Yes (Fan cooling required for compressor) |
| Commercial or No | Domestic Grade |
| Amperage (FLA) | 1.0 A to 1.3 A |
| LRA (Locked Rotor Amps) | 5.0-6.0 A |
| Type of Relay | PTC Relay with Run Capacitor |
| COP | 1.35 W/W |
| Thermal Protection | Yes (Internal Thermal Protector) |
| Net Weight | 6.0-7.0 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) |
|---|---|---|---|
| -25 | 135 | 125 | 1.08 |
| -20 | 165 | 135 | 1.22 |
| -15 | 200 | 145 | 1.38 |
| -10 | 240 | 155 | 1.55 |
| -5 | 285 | 165 | 1.73 |
| 0 | 335 | 175 | 1.91 |
| 5 | 390 | 185 | 2.11 |
Replacement Models
| Brand | Model Number |
|---|---|
| Panasonic | SFK51C94RPX |
| Panasonic | QB51C99GLX5 |
| Panasonic | DGH51C90RAX |
| Panasonic | SF Series variants |
5 Replacements (Same R134a Gas)
- Embraco NEK6196Z (Strong alternative, 1/6 HP, 6.5cc)
- Tecumseh THG1352YLS (Classic reliable swap, 1/6 HP) everwellparts.com
- Cubigel GL60AA (Excellent domestic equivalent, 5.99cc) frigopartners.com
- Danfoss SC10G (Similar capacity, 10cc displacement)
- Huayi HYE11YG (Budget-friendly alternative, 1/6 HP)
5 Replacements (Other Gas – R600a/R404A)
Note: Requires complete system flush and expansion valve/capillary adjustment.
- Embraco EGU80HLP (R600a – Isobutane, very efficient, 1/6 HP)
- Danfoss SC10CNX (R290 – Propane, high efficiency)
- Tecumseh CAJ9480Z (R404A – Higher capacity)
- Secop NL9FK (R600a compatible variant)
- 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
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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.
