BDX54CAlternatives & Equivalent Parts
About BDX54C
BDX54C is a Transistor Darlington Pair 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.
Specification Comparison
| Parameter | BDX54CSource | BDX53C | UC3843BN |
|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package Type | Transistor Outline, Vertical | Transistor Outline, Vertical | Dual-In-Line Packages |
| Pin Count | 3 | 3 | 8 |
| Temperature Range | ~ 150.0°C | ~ 150.0°C | ~ 70.0°C |
| Price | $0.1758 | $0.2407 | — |
| Electrical Parameters | |||
| Factory Lead Time | 14 Weeks | 14 Weeks | 14 Weeks |
| YTEOL | 9 | 9 | 6 |
| Collector Current-Max (IC) | 8 A | 8 A | — |
| Collector-Emitter Voltage-Max | 100 V | 100 V | — |
| Configuration | DARLINGTON WITH BUILT-IN DIODE AND RESISTOR | DARLINGTON WITH BUILT-IN DIODE AND RESISTOR | — |
| DC Current Gain-Min (hFE) | 750 | 750 | — |
| JEDEC-95 Code | TO-220AB | TO-220AB | — |
| JESD-30 Code | R-PSFM-T3 | R-PSFM-T3 | R-PDIP-T8 |
| JESD-609 Code | e3 | e3 | e4 |
| Number of Elements | 1 | 1 | — |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | FLANGE MOUNT | FLANGE MOUNT | IN-LINE |
| Polarity/Channel Type | PNP | NPN | — |
| Power Dissipation Ambient-Max | 60 W | 60 W | — |
| Power Dissipation-Max (Abs) | 60 W | 60 W | — |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified |
| Surface Mount | NO | NO | NO |
| Terminal Finish | Matte Tin (Sn) | Matte Tin (Sn) - annealed | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE | THROUGH-HOLE | THROUGH-HOLE |
| Terminal Position | SINGLE | SINGLE | DUAL |
| Transistor Application | SWITCHING | SWITCHING | — |
| Transistor Element Material | SILICON | SILICON | — |
| Transition Frequency-Nom (fT) | 20 MHz | 20 MHz | — |
| VCEsat-Max | 2 V | 2 V | — |
| ## BDX54C Alternates Showing results | Image | — | — |
| Peak Reflow Temperature (Cel) | — | NOT SPECIFIED | — |
| Time@Peak Reflow Temperature-Max (s) | — | NOT SPECIFIED | — |
| ## BDX53C Alternates Showing results | — | Image | — |
| Analog IC - Other Type | — | — | SWITCHING CONTROLLER |
| Control Mode | — | — | CURRENT-MODE |
| Control Technique | — | — | PULSE WIDTH MODULATION |
| Input Voltage-Max | — | — | 30 V |
| Input Voltage-Min | — | — | 8.2 V |
| Input Voltage-Nom | — | — | 15 V |
| Number of Functions | — | — | 1 |
| Output Current-Max | — | — | 1 A |
| Package Equivalence Code | — | — | DIP8,.3 |
| Switcher Configuration | — | — | SINGLE |
| Switching Frequency-Max | — | — | 500 kHz |
| Technology | — | — | BIPOLAR |
| Temperature Grade | — | — | COMMERCIAL |
| Terminal Pitch | — | — | 2.54 mm |
| ## UC3843BN Alternates Showing results | — | — | Image |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Quick Links
Why Look for Alternatives?
Finding alternatives for BDX54C 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 BDX54C 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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What is equivalent to BDX54C?
Known equivalents for BDX54C include BDX53C, UC3843BN. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of BDX54C?
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 BDX54C 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.