IRF730Alternatives & Equivalent Parts
About IRF730
IRF730 is a MOSFET (N-Channel) component manufactured by STMicroelectronics. It comes in a Transistor Outline, Vertical package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
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Specification Comparison
| Parameter | IRF730Source | LM319N | NTD3055L104-1G |
|---|---|---|---|
| Manufacturer | STMicroelectronics | Texas Instruments | ON Semiconductor |
| Package Type | Transistor Outline, Vertical | Dual-In-Line Packages | Transistor Outline, Vertical |
| Pin Count | 3 | 14 | 4 |
| Temperature Range | ~ 150.0°C | ~ 70.0°C | ~ 175.0°C |
| Price | $0.4478 | $0.2100 | $0.6000 |
| Stock | In Stock | In Stock | In Stock |
| Lifecycle | OBSOLETE | ACTIVE | OBSOLETE |
| Electrical Parameters | |||
| YTEOL | 0 | 0 | 0 |
| Additional Feature | HIGH VOLTAGE, FAST SWITCHING | — | — |
| Avalanche Energy Rating (Eas) | 300 mJ | — | 61 mJ |
| Configuration | SINGLE WITH BUILT-IN DIODE | — | SINGLE WITH BUILT-IN DIODE |
| DS Breakdown Voltage-Min | 400 V | — | 60 V |
| Drain Current-Max (ID) | 5.5 A | — | 12 A |
| Drain-source On Resistance-Max | 1 Ω | — | 0.104 Ω |
| FET Technology | METAL-OXIDE SEMICONDUCTOR | — | METAL-OXIDE SEMICONDUCTOR |
| Feedback Cap-Max (Crss) | 65 pF | — | — |
| JEDEC-95 Code | TO-220AB | — | — |
| JESD-30 Code | R-PSFM-T3 | R-PDIP-T14 | R-PSIP-T3 |
| JESD-609 Code | e3 | e4 | e3 |
| Number of Elements | 1 | — | 1 |
| Operating Mode | ENHANCEMENT MODE | — | ENHANCEMENT MODE |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | FLANGE MOUNT | IN-LINE | IN-LINE |
| Polarity/Channel Type | N-CHANNEL | — | N-CHANNEL |
| Power Dissipation Ambient-Max | 100 W | — | — |
| Power Dissipation-Max (Abs) | 75 W | — | 48 W |
| Pulsed Drain Current-Max (IDM) | 22 A | — | 45 A |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified |
| Surface Mount | NO | NO | NO |
| Terminal Finish | MATTE TIN | NICKEL PALLADIUM GOLD | Matte Tin (Sn) - annealed |
| Terminal Form | THROUGH-HOLE | THROUGH-HOLE | THROUGH-HOLE |
| Terminal Position | SINGLE | DUAL | SINGLE |
| Transistor Application | SWITCHING | — | SWITCHING |
| Transistor Element Material | SILICON | — | SILICON |
| Turn-off Time-Max (toff) | 193 ns | — | — |
| Turn-on Time-Max (ton) | 107 ns | — | — |
| ## IRF730 Alternates Showing results | Image | — | — |
| Amplifier Type | — | COMPARATOR | — |
| Average Bias Current-Max (IIB) | — | 0.0012 µA | — |
| Bias Current-Max (IIB) @25C | — | 1 µA | — |
| Input Offset Voltage-Max | — | 10000 µV | — |
| Neg Supply Voltage Limit-Max | — | -25 V | — |
| Neg Supply Voltage-Nom (Vsup) | — | -15 V | — |
| Number of Functions | — | 2 | — |
| Output Type | — | OPEN-COLLECTOR | — |
| Package Equivalence Code | — | DIP14,.3 | — |
| Response Time-Nom | — | 80 ns | — |
| Supply Current-Max | — | 12.5 mA | — |
| Supply Voltage Limit-Max | — | 18 V | — |
| Supply Voltage-Nom (Vsup) | — | 15 V | — |
| Technology | — | BIPOLAR | — |
| Temperature Grade | — | COMMERCIAL | — |
| Terminal Pitch | — | 2.54 mm | — |
| ## LM319N Alternates Showing results | — | Image | — |
| Pbfree Code | — | — | Yes |
| Manufacturer Package Code | — | — | 369 |
| Case Connection | — | — | DRAIN |
| Peak Reflow Temperature (Cel) | — | — | 260 |
| Time@Peak Reflow Temperature-Max (s) | — | — | 30 |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Need pricing on these alternatives?
Get one quote covering all 2 alternatives for IRF730 — response within 24 hours.
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Why Look for Alternatives?
Finding alternatives for IRF730 is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating IRF730 replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
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FAQ
What is equivalent to IRF730?
Known equivalents for IRF730 include LM319N, NTD3055L104-1G. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of IRF730?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify IRF730 alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.