BUL128D-BAlternatives & Equivalent Parts
About BUL128D-B
BUL128D-B 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.
Specification Comparison
| Parameter | BUL128D-BSource | STB45N65M5 | INA126EA/250 | LMC6482IM |
|---|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | Texas Instruments | Texas Instruments |
| Package Type | Transistor Outline, Vertical | Other | Small Outline Packages | — |
| Pin Count | 3 | 3 | 8 | — |
| Temperature Range | ~ 150.0°C | ~ 150.0°C | -40.0°C ~ 85.0°C | — |
| Price | $0.3289 | — | $1.9260 | $0.3121 |
| Electrical Parameters | ||||
| YTEOL | 0 | 5 | 15 | — |
| Collector Current-Max (IC) | 4 A | — | — | — |
| Collector-Emitter Voltage-Max | 400 V | — | — | — |
| Configuration | SINGLE WITH BUILT-IN DIODE | SINGLE WITH BUILT-IN DIODE | — | — |
| DC Current Gain-Min (hFE) | 12 | — | — | — |
| JEDEC-95 Code | TO-220AB | TO-220AB | — | — |
| JESD-30 Code | R-PSFM-T3 | R-PSFM-T3 | S-PDSO-G8 | — |
| JESD-609 Code | e3 | — | e4 | — |
| Number of Elements | 1 | 1 | — | — |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | — |
| Package Shape | RECTANGULAR | RECTANGULAR | SQUARE | — |
| Package Style | FLANGE MOUNT | FLANGE MOUNT | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH | — |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED | NOT SPECIFIED | 260 | — |
| Polarity/Channel Type | NPN | N-CHANNEL | — | — |
| Power Dissipation Ambient-Max | 70 W | — | — | — |
| Power Dissipation-Max (Abs) | 70 W | 210 W | — | — |
| Qualification Status | Not Qualified | — | Not Qualified | — |
| Surface Mount | NO | NO | YES | — |
| Terminal Finish | Matte Tin (Sn) | — | Nickel/Palladium/Gold (Ni/Pd/Au) | — |
| Terminal Form | THROUGH-HOLE | THROUGH-HOLE | GULL WING | — |
| Terminal Position | SINGLE | SINGLE | DUAL | — |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED | NOT SPECIFIED | 30 | — |
| Transistor Application | SWITCHING | SWITCHING | — | — |
| Transistor Element Material | SILICON | SILICON | — | — |
| VCEsat-Max | 1.5 V | — | — | — |
| Factory Lead Time | — | 14 Weeks | — | — |
| Additional Feature | — | ULTRA LOW RESISTANCE | — | — |
| Avalanche Energy Rating (Eas) | — | 810 mJ | — | — |
| Case Connection | — | DRAIN | — | — |
| DS Breakdown Voltage-Min | — | 650 V | — | — |
| Drain Current-Max (ID) | — | 35 A | — | — |
| Drain-source On Resistance-Max | — | 0.078 Ω | — | — |
| FET Technology | — | METAL-OXIDE SEMICONDUCTOR | — | — |
| Operating Mode | — | ENHANCEMENT MODE | — | — |
| Pulsed Drain Current-Max (IDM) | — | 140 A | — | — |
| Pbfree Code | — | — | Yes | — |
| Amplifier Type | — | — | INSTRUMENTATION AMPLIFIER | — |
| Average Bias Current-Max (IIB) | — | — | 0.05 µA | — |
| Bandwidth (3dB)-Nom | — | — | 0.2 MHz | — |
| Bias Current-Max (IIB) @25C | — | — | 0.025 µA | — |
| Common-mode Reject Ratio-Min | — | — | 83 dB | — |
| Input Offset Current-Max (IIO) | — | — | 0.005 µA | — |
| Input Offset Voltage-Max | — | — | 250 µV | — |
| Neg Supply Voltage Limit-Max | — | — | -18 V | — |
| Neg Supply Voltage-Nom (Vsup) | — | — | -15 V | — |
| Non-linearity-Max | — | — | 0.012% | — |
| Number of Functions | — | — | 1 | — |
| Package Equivalence Code | — | — | TSSOP8,.19 | — |
| Packing Method | — | — | TR | — |
| Slew Rate-Nom | — | — | 0.4 V/us | — |
| Subcategory | — | — | Instrumentation Amplifier | — |
| Supply Current-Max | — | — | 0.2 mA | — |
| Supply Voltage Limit-Max | — | — | 18 V | — |
| Supply Voltage-Nom (Vsup) | — | — | 15 V | — |
| Technology | — | — | BIPOLAR | — |
| Temperature Grade | — | — | INDUSTRIAL | — |
| Terminal Pitch | — | — | 0.65 mm | — |
| Voltage Gain-Max | — | — | 10000 | — |
| Voltage Gain-Min | — | — | 5 | — |
| Voltage Gain-Nom | — | — | 100 | — |
| ## INA126EA/250 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 BUL128D-B 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 BUL128D-B 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 BUL128D-B?
Known equivalents for BUL128D-B include STB45N65M5, INA126EA/250, LMC6482IM. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of BUL128D-B?
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 BUL128D-B 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.