BD678AAlternatives & Equivalent Parts
About BD678A
BD678A is a Transistor BJT PNP 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.
Need pricing on these alternatives?
Get one quote covering this alternative for BD678A — response within 24 hours.
Specification Comparison
| Parameter | BD678ASource | BD678AG |
|---|---|---|
| Manufacturer | STMicroelectronics | ON Semiconductor |
| Package Type | Transistor Outline, Vertical | Other |
| Pin Count | 3 | 3 |
| Temperature Range | ~ 150.0°C | ~ 150.0°C |
| Price | $0.3305 | $0.7560 |
| Stock | In Stock | In Stock |
| Lifecycle | OBSOLETE | OBSOLETE |
| Electrical Parameters | ||
| YTEOL | 0 | 0 |
| Case Connection | ISOLATED | — |
| Collector Current-Max (IC) | 4 A | 4 A |
| Collector-Emitter Voltage-Max | 60 V | 60 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-126 | TO-225AA |
| JESD-30 Code | R-PSFM-T3 | R-PSFM-T3 |
| JESD-609 Code | e3 | e3 |
| Number of Elements | 1 | 1 |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR | RECTANGULAR |
| Package Style | FLANGE MOUNT | FLANGE MOUNT |
| Polarity/Channel Type | PNP | PNP |
| Power Dissipation Ambient-Max | 40 W | — |
| Power Dissipation-Max (Abs) | 40 W | 40 W |
| Qualification Status | Not Qualified | Not Qualified |
| Surface Mount | NO | NO |
| Terminal Finish | MATTE TIN | MATTE TIN |
| Terminal Form | THROUGH-HOLE | THROUGH-HOLE |
| Terminal Position | SINGLE | SINGLE |
| Transistor Application | SWITCHING | AMPLIFIER |
| Transistor Element Material | SILICON | SILICON |
| Transition Frequency-Nom (fT) | 10 MHz | — |
| VCEsat-Max | 2.8 V | — |
| Pbfree Code | — | Yes |
| Manufacturer Package Code | — | 77-09 |
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 this alternative for BD678A — response within 24 hours.
Quick Links
Why Look for Alternatives?
Finding alternatives for BD678A 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 BD678A 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.
Can't Find What You Need?
Our sourcing team can help find compatible alternatives for BD678A. Get expert recommendations within 24 hours.
FAQ
What is equivalent to BD678A?
Known equivalents for BD678A include BD678AG. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of BD678A?
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 BD678A 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.