BU931PAlternatives & Equivalent Parts
About BU931P
BU931P is a Transistor BJT NPN 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 | BU931PSource | BC856B-7-F | EE-SX4070 | LM217D2T-TR | L7805CD2T | LMZ14203HTZ/NOPB |
|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | Diodes Inc. | Omron Electronics | STMicroelectronics | STMicroelectronics | Texas Instruments |
| Package Type | Transistor Outline, Vertical | SOT23 (3-Pin) | Other | Other | Other | Other |
| Pin Count | 3 | 3 | 5 | 3 | 3 | 7 |
| Temperature Range | ~ 175.0°C | ~ 150.0°C | — | — | — | -40.0°C ~ 125.0°C |
| Price | $1.4100 | $0.0235 | $1.4948 | $0.4295 | $0.1288 | $7.3980 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | OBSOLETE | ACTIVE | ACTIVE | ACTIVE | OBSOLETE | ACTIVE |
| Electrical Parameters | ||||||
| YTEOL | 0 | 7 | — | 6.24 | 0 | 15 |
| Collector Current-Max (IC) | 15 A | 0.1 A | — | — | — | — |
| Collector-Emitter Voltage-Max | 400 V | 65 V | — | — | — | — |
| Configuration | DARLINGTON WITH BUILT-IN DIODE AND RESISTOR | SINGLE | — | — | — | — |
| DC Current Gain-Min (hFE) | 300 | 220 | — | — | — | — |
| JEDEC-95 Code | TO-218 | — | — | — | — | — |
| JESD-30 Code | R-PSFM-T3 | R-PDSO-G3 | — | R-PSSO-G2 | R-PSSO-G2 | R-PSSO-G7 |
| JESD-609 Code | e3 | e3 | — | e3 | e3 | e3 |
| Number of Elements | 1 | 1 | — | — | — | — |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | — | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR | RECTANGULAR | — | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | FLANGE MOUNT | SMALL OUTLINE | — | SMALL OUTLINE, HEAT SINK/SLUG | SMALL OUTLINE | SMALL OUTLINE |
| Polarity/Channel Type | NPN | PNP | — | — | — | — |
| Power Dissipation Ambient-Max | 135 W | — | — | — | — | — |
| Power Dissipation-Max (Abs) | 105 W | 0.3 W | — | — | — | — |
| Qualification Status | Not Qualified | Not Qualified | — | Not Qualified | Not Qualified | — |
| Reference Standard | AEC-Q101 | — | — | — | — | — |
| Surface Mount | NO | YES | — | YES | YES | YES |
| Terminal Finish | Matte Tin (Sn) | MATTE TIN | — | Matte Tin (Sn) | MATTE TIN | Tin (Sn) |
| Terminal Form | THROUGH-HOLE | GULL WING | — | GULL WING | GULL WING | GULL WING |
| Terminal Position | SINGLE | DUAL | — | SINGLE | SINGLE | SINGLE |
| Transistor Application | SWITCHING | SWITCHING | — | — | — | — |
| Transistor Element Material | SILICON | SILICON | — | — | — | — |
| VCEsat-Max | 1.8 V | — | — | — | — | — |
| Pbfree Code | — | Yes | — | — | — | Yes |
| Peak Reflow Temperature (Cel) | — | 260 | — | NOT SPECIFIED | 245 | 245 |
| Time@Peak Reflow Temperature-Max (s) | — | 30 | — | NOT SPECIFIED | 30 | 30 |
| Transition Frequency-Nom (fT) | — | 200 MHz | — | — | — | — |
| Factory Lead Time | — | — | — | 8 Weeks | — | — |
| Adjustability | — | — | — | ADJUSTABLE | FIXED | — |
| Dropout Voltage1-Nom | — | — | — | 3 V | 2 V | — |
| Input-Output Voltage Differential-Max | — | — | — | 40 V | — | — |
| Input-Output Voltage Differential-Min | — | — | — | 3 V | — | — |
| Line Regulation-Max (%/V) | — | — | — | 0.05 | — | — |
| Load Regulation-Max(%) | — | — | — | 1% | — | — |
| Number of Functions | — | — | — | 1 | 1 | 1 |
| Number of Outputs | — | — | — | 1 | 1 | 1 |
| Operating Temperature TJ-Max | — | — | — | 150 °C | 150 °C | — |
| Operating Temperature TJ-Min | — | — | — | -25 °C | — | — |
| Output Current1-Max | — | — | — | 1.5 A | 1.5 A | — |
| Output Voltage1-Max | — | — | — | 37 V | 5.25 V | — |
| Output Voltage1-Min | — | — | — | 1.2 V | 4.75 V | — |
| Package Equivalence Code | — | — | — | SMSIP3H,.55TB | SMSIP3H,.55TB | — |
| Packing Method | — | — | — | TR | — | — |
| Regulator Type | — | — | — | ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR | FIXED POSITIVE SINGLE OUTPUT STANDARD REGULATOR | — |
| Technology | — | — | — | BIPOLAR | BIPOLAR | — |
| Terminal Pitch | — | — | — | 2.54 mm | 2.54 mm | 1.27 mm |
| ## LM217D2T-TR Alternates Showing results | — | — | — | Image | — | — |
| Input Voltage Absolute-Max | — | — | — | — | 35 V | — |
| Input Voltage-Max | — | — | — | — | 25 V | 42 V |
| Input Voltage-Min | — | — | — | — | 7 V | 6 V |
| Line Regulation-Max | — | — | — | — | 0.1% | — |
| Load Regulation-Max | — | — | — | — | 0.1% | — |
| Output Voltage1-Nom | — | — | — | — | 5 V | — |
| Voltage Tolerance-Max | — | — | — | — | 5% | — |
| ## L7805CD2T Alternates Showing results | — | — | — | — | Image | — |
| Additional Feature | — | — | — | — | — | ALSO HAS ADJUSTABLE OUTPUT VOLTAGE AS LOW AS 5V |
| Analog IC - Other Type | — | — | — | — | — | SWITCHING REGULATOR |
| Control Technique | — | — | — | — | — | CONSTANT ON TIME |
| Input Voltage-Nom | — | — | — | — | — | 24 V |
| Output Current-Max | — | — | — | — | — | 3 A |
| Output Voltage-Max | — | — | — | — | — | 24 V |
| Output Voltage-Min | — | — | — | — | — | 5 V |
| Output Voltage-Nom | — | — | — | — | — | 12 V |
| Switcher Configuration | — | — | — | — | — | BUCK-BOOST |
| Switching Frequency-Max | — | — | — | — | — | 1000 kHz |
| Temperature Grade | — | — | — | — | — | AUTOMOTIVE |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
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Get one quote covering all 5 alternatives for BU931P — response within 24 hours.
Quick Links
Why Look for Alternatives?
Finding alternatives for BU931P 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 BU931P 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 BU931P?
Known equivalents for BU931P include BC856B-7-F, EE-SX4070, LM217D2T-TR. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of BU931P?
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 BU931P 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.