Part Details for BSS138 by Siemens
Results Overview of BSS138 by Siemens
- Distributor Offerings: (0 listings)
- Number of FFF Equivalents: (7 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (10 options)
- Part Data Attributes: (Available)
- Reference Designs: (Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
BSS138 Information
BSS138 by Siemens is a Small Signal Field-Effect Transistor.
Small Signal Field-Effect Transistors are under the broader part category of Transistors.
A transistor is a small semiconductor device used to amplify, control, or create electrical signals. When selecting a transistor, factors such as voltage, current rating, gain, and power dissipation must be considered, with common types. Read more about Transistors on our Transistors part category page.
Part Details for BSS138
BSS138 CAD Models
BSS138 Part Data Attributes
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BSS138
Siemens
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Datasheet
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BSS138
Siemens
Small Signal Field-Effect Transistor, 0.22A I(D), 50V, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, SOT-23, 3 PIN
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| Rohs Code | No | |
| Part Life Cycle Code | Transferred | |
| Ihs Manufacturer | SIEMENS A G | |
| Part Package Code | SOT-23 | |
| Package Description | SOT-23, 3 PIN | |
| Pin Count | 3 | |
| Reach Compliance Code | unknown | |
| ECCN Code | EAR99 | |
| Configuration | SINGLE | |
| DS Breakdown Voltage-Min | 50 V | |
| Drain Current-Max (ID) | 0.22 A | |
| Drain-source On Resistance-Max | 3.5 Ω | |
| FET Technology | METAL-OXIDE SEMICONDUCTOR | |
| Feedback Cap-Max (Crss) | 10 pF | |
| JESD-30 Code | R-PDSO-G3 | |
| JESD-609 Code | e0 | |
| Number of Elements | 1 | |
| Number of Terminals | 3 | |
| Operating Mode | ENHANCEMENT MODE | |
| Operating Temperature-Max | 150 °C | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Shape | RECTANGULAR | |
| Package Style | SMALL OUTLINE | |
| Polarity/Channel Type | N-CHANNEL | |
| Power Dissipation-Max (Abs) | 0.36 W | |
| Qualification Status | Not Qualified | |
| Surface Mount | YES | |
| Terminal Finish | Tin/Lead (Sn/Pb) | |
| Terminal Form | GULL WING | |
| Terminal Position | DUAL | |
| Transistor Element Material | SILICON |
Alternate Parts for BSS138
This table gives cross-reference parts and alternative options found for BSS138. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of BSS138, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
| Part Number | Manufacturer | Composite Price | Description | Compare |
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| BSS138TA | Diodes Incorporated | Check for Price | Small Signal Field-Effect Transistor, 0.2A I(D), 50V, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, SOT-23, 3 PIN | BSS138 vs BSS138TA |
| BSS138E6433 | Infineon Technologies AG | Check for Price | Small Signal Field-Effect Transistor, 0.22A I(D), 50V, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, SOT-23, 3 PIN | BSS138 vs BSS138E6433 |
| BSS138/S62Z | National Semiconductor Corporation | Check for Price | TRANSISTOR 220 mA, 50 V, N-CHANNEL, Si, SMALL SIGNAL, MOSFET, TO-236AB, FET General Purpose Small Signal | BSS138 vs BSS138/S62Z |
| BSS138E6327 | Infineon Technologies AG | Check for Price | Small Signal Field-Effect Transistor, 0.22A I(D), 50V, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, SOT-23, 3 PIN | BSS138 vs BSS138E6327 |
| BSS138LT3 | Motorola Semiconductor Products | Check for Price | Small Signal Field-Effect Transistor, 0.2A I(D), 50V, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, TO-236AB, CASE 318-08, 3 PIN | BSS138 vs BSS138LT3 |
| BSS138/S62Z | Texas Instruments | Check for Price | 220mA, 50V, N-CHANNEL, Si, SMALL SIGNAL, MOSFET, TO-236AB | BSS138 vs BSS138/S62Z |
| BSS138-T | onsemi | Check for Price | N-Channel Logic Level Enhancement Mode Field Effect Transistor, 50V, 220mA, SOT-23 (TO-236) 2.90x1.30x1.00, 1.90P, 3000-REEL | BSS138 vs BSS138-T |
Resources and Additional Insights for BSS138
Reference Designs related to BSS138
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15W Qi transmitter for charging smartphones
The 15W wireless power transmitter evaluation module is a high-performance, easy-to-use development kit designed for applications up to 15W of power transfer. It supports an input voltage range of 9-12V and is compatible with QC 3.0 adapters.
BSS138 Frequently Asked Questions (FAQ)
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The BSS138 can operate safely up to 150°C, but it's recommended to keep it below 125°C for optimal performance and reliability.
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To ensure proper biasing, make sure to provide a stable voltage supply, keep the input voltage within the recommended range (typically 1.5V to 5.5V), and use a suitable pull-up resistor (typically 1kΩ to 10kΩ) on the gate pin.
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The BSS138 has a maximum continuous drain current rating of 1.4A, but it's recommended to keep it below 1A for reliable operation and to avoid overheating.
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No, the BSS138 is a low-side switch, meaning it's designed to switch the ground connection of a load. It's not suitable for high-side switching applications.
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To protect the BSS138 from overvoltage and ESD, use a voltage clamp or a TVS diode on the input pin, and ensure proper PCB layout and grounding practices to minimize ESD exposure.