Supco Dual Run Capacitor CD45+5X370 vs Titan Pro TRCFD455 Dual Run Capacitor
Both are 45+5 MFD dual run capacitors for the same job, so the choice comes down to voltage headroom, shape and price. The Titan Pro TRCFD455 is rated 440/370V, round, and $9.75 at Zoro as of November 3, 2026. The Supco CD45+5X370 is a 370V oval unit that has traded between $8.88 and $30.76 since October 29, 2026, so check its current price before buying. Buy the Titan Pro unless your mount is an oval bracket or you find the Supco clearly cheaper.
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Supco Dual Run Capacitor CD45+5X370
Choose the Supco CD45+5X370 if your unit takes an oval capacitor and you confirm the 370V rating matches your original part.
Pros
- Fits oval mounting brackets that round cans will not.
- Steel case with quad blade terminals.
- Wider stated temperature range, down to -13°F.
- Has traded as low as $8.88 since October 29, 2026.
Cons
- Only 370V rated, no 440V headroom.
- Price has swung from $8.88 to $30.76 in days.
- No published operating-life figure.
- Oval shape limits fit to units built for it.
What separates them
| Supco Dual Run Capacitor CD45+5X370 | Titan Pro TRCFD455 Dual Run Capacitor | |
|---|---|---|
| Voltage rating | 370 VAC | 440/370 VAC dual rating |
| Case shape | Oval, 1.78 in wide | Round, 2.50 in diameter, 3.74 in tall |
| Case material | Drawn steel | Aluminum case with steel cover |
| Terminals | Quad blade quick connect | 1/4 in male terminals |
| Rated operating life | Not stated | 60,000 hours |
| Temperature range | -13°F to 185°F | -40°C to 70°C (about -40°F to 158°F) |
| Safety feature | Physical interrupter | Second generation anti-explosion safety switch |
| Latest price | $8.88 low, $30.76 high since October 29, 2026 | $9.75 at Zoro as of November 3, 2026 |
Price history
$30.76$7.15
- Supco Dual Run Capacitor CD45+5X370: lowest $8.88 on Oct 29; $30.76 on Oct 30.
- Titan Pro TRCFD455 Dual Run Capacitor: lowest $7.15 on Nov 2 at Jackson Systems & Supply.
Prices at every store
Supco Dual Run Capacitor CD45+5X370
- Controls CentralCheck price at Controls Central
- Home DepotCheck price at Home Depot
- Part AdvantageCheck price at Part Advantage
Titan Pro TRCFD455 Dual Run Capacitor
- eBayCheck price at eBay
- Jackson Systems & SupplyCheck price at Jackson Systems & Supply
- Lowe'sCheck price at Lowe's
Specs compared
| Spec | Supco Dual Run Capacitor CD45+5X370 | Titan Pro TRCFD455 Dual Run Capacitor |
|---|---|---|
| Capacitance | 45/5 MFD | 45+5 MFD |
| Shape | Oval | Round |
| color | Silver | — |
| Volts | 1 Volts | — |
| Brand | Supco | — |
| Model | CD45+5X370 | — |
| Pieces | 1 | — |
| Retail packaging | Single Piece | — |
| Dielectric Type | Non-pcb biodegradable synthetic oil | — |
| Voltage Rating | 440 Volt | — |
| Capacitance Type | Dual Run |
Questions and answers
- Which one should I buy for a standard AC condenser?
- Either works if the MFD and voltage match your original part. The Titan Pro's 440/370V rating covers more systems, so it is the safer default when you are unsure.
- Does the shape matter?
- Yes. The Supco is oval and the Titan Pro is round at 2.50 in. Measure your old capacitor and bracket before ordering; a round can will not drop into an oval strap.
- Which lasts longer?
- Titan Pro publishes a 60,000-hour rating; Supco does not publish one for this model. Real-world life depends more on heat and voltage stress than on the spec sheet.
- Is the Supco worth the extra if it costs more?
- Only if you need the oval shape or the wider low-temperature range. At equal price the Titan Pro's higher voltage rating and published life figure make it the better buy.
- Can I use a 440V capacitor in place of a 370V one?
- Yes. A higher voltage rating is safe as long as the capacitance (45+5 MFD) matches. Never go lower than the original voltage rating.
- Are these the same capacitance?
- Yes. Both are 45+5 MFD dual run capacitors, so they are electrically interchangeable where the voltage and shape fit.