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onsemi SBCW30LT1G
- Part No.:
- SBCW30LT1G
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
SBCW30LT1G.pdf
- Description:
- TRANS PNP 32V 0.1A SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:9,178
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Product details
Overview
SBCW30LT1G from onsemi is a PNP silicon general-purpose transistor in SOT-23 package, rated for −32 VCEO, −100 mAC, and DC current gain (hFE) of 215–500 at −2 mAC/−5 VCE; used in low-power signal amplification and switching circuits in automotive body control modules and industrial sensor interfaces.
For engineers reviewing the SBCW30LT1G datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q101 qualification, Pb-free RoHS-compliant SOT-23 footprint, −0.3 VCE(sat) at −10 mAC/−0.5 mAB, and 7.0 pF output capacitance for high-frequency analog front-end design.
Technical Context
This device operates as a discrete PNP bipolar junction transistor with fixed emitter-base and collector-base junctions optimized for linear amplification and saturated switching. Its thermal resistance (RJA) is 556 °C/W on FR-5 board and 417 °C/W on alumina substrate, supporting operation from −55 °C to +150 °C junction temperature.
Electrical behavior is defined by guaranteed minimum/maximum hFE across −2 mA to −100 mA collector current, −0.6 V to −0.75 VBE(on) at −2 mAC, and noise figure ≤10 dB at 1 kHz with 2 kΩ source resistance - enabling low-noise preamplifier stages in automotive cabin sensors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −32 Vdc - Maximum allowable voltage between collector and emitter before breakdown; defines safe operating range in 24 V automotive supply rails. |
| IC Continuous | −100 mAdc - Continuous collector current rating; supports drive of small relays, LEDs, or logic-level interface buffers. |
| hFE | 215–500 - DC current gain at −2 mAC/−5 VCE; enables predictable base-current sizing for stable biasing in amplifier or switch designs. |
| VCE(sat) | ≤−0.3 Vdc at −10 mAC/−0.5 mAB - Low saturation voltage minimizes power loss and heat generation in switching applications. |
| Cobo | ≤7.0 pF at −10 VCB, 1 MHz - Output capacitance limits high-frequency bandwidth; suitable for <100 MHz small-signal amplification. |
| NF | ≤10 dB at 1 kHz, 2 kΩ RS - Noise figure specifies input-referred noise performance critical for precision analog sensing front-ends. |
Pinout & Package
SBCW30LT1G uses the SOT-23 (TO-236) surface-mount package (Case 318-08, Style 6), measuring 2.90 × 1.30 × 1.00 mm with 1.90 mm lead pitch. It is Pb-free, halogen-free, and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Current-controlled input terminal; requires external bias resistor network to set operating point in active or saturation region. |
| 2 | Emitter | Common reference terminal for PNP configuration; connected to higher potential rail (e.g., 12 V or 24 V) in typical common-emitter switch layout. |
| 3 | Collector | Output current terminal; sinks load current to ground when biased on; must be routed with adequate copper area for thermal dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, lighting, and body electronics per stress test requirements. |
| Pb-free / RoHS compliant | Meets global environmental compliance mandates without requiring process requalification or solder compatibility changes. |
| Low VCE(sat) | ≤−0.3 V ensures <30 mW conduction loss at −10 mA load, reducing thermal load in space-constrained PCB layouts. |
| High hFE consistency | 215–500 range allows robust circuit design across manufacturing lots without recalibration or trim components. |
| Low noise figure | ≤10 dB at 1 kHz enables use in microphone preamps, thermistor signal conditioning, and other low-level analog sensing paths. |
Applications
| Automotive Cabin Sensors | Industrial Level Detection |
|---|---|
|
Use Scenario: Amplifying millivolt-level signals from NTC thermistors in HVAC control units. IC Role / Device Role / Timing Role: PNP transistor configured as common-emitter DC amplifier with fixed bias network. Use Value: High hFE and low NF enable accurate 0.1°C resolution over −40°C to +85°C ambient without op-amp cascading. |
Use Scenario: Switching 24 V solenoid valves in programmable logic controller (PLC) output modules. IC Role / Device Role / Timing Role: Saturated PNP switch sinking load current to ground under microcontroller GPIO control. Use Value: −0.3 VCE(sat) limits power dissipation to <3 mW per valve, eliminating need for heatsinking in dense I/O card layouts. |
| Consumer Appliance Timers | Medical Patient Monitor Front-Ends |
|
Use Scenario: Driving LED indicators and buzzer transducers in microwave oven control panels. IC Role / Device Role / Timing Role: General-purpose PNP switch interfacing 3.3 V MCU outputs to 12 V indicator loads. Use Value: −32 VCEO rating provides 2× margin over 12 V rail, ensuring long-term reliability during load dump transients. |
Use Scenario: Buffering ECG electrode signals prior to instrumentation amplifier input stage. IC Role / Device Role / Timing Role: Low-noise PNP emitter-follower providing impedance transformation and DC level shift. Use Value: 7.0 pF Cobo and ≤10 dB NF preserve signal integrity below 10 kHz, meeting IEC 60601-2-27 ECG bandwidth requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP general-purpose transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BCW30LT1G | Same die, identical electrical specs; differs only in prefix (no S-prefix); not AEC-Q101 qualified. | Non-automotive industrial or consumer use where PPAP documentation is not required. | Select when cost sensitivity outweighs automotive qualification needs and supply chain traceability is less critical. |
| MMBT3906LT1G | hFE range 100–300 (lower min/max), VCEO = −40 V, Cobo = 8 pF; same SOT-23 package and pinout. | Higher voltage margin but lower gain consistency; suitable for less demanding switching where gain tolerance >30% is acceptable. | Choose when wider VCEO margin is prioritized over gain stability, or when legacy BOM migration requires minimal redesign. |
Compared with BCW30LT1G and MMBT3906LT1G, the SBCW30LT1G uniquely combines AEC-Q101 qualification, tighter hFE spread (215–500), and −0.3 VCE(sat) - making it the preferred choice for automotive signal conditioning and safety-critical switching where process control and long-term parametric stability are mandatory.
Availability
SBCW30LT1G is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and medical sensor signal conditioning requiring stable component supply across multi-year production cycles.
Supply support for SBCW30LT1G includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
onsemi is a global semiconductor supplier specializing in energy-efficient electronics for automotive, industrial, cloud, and IoT applications, with leadership in power management, analog, and sensing technologies.
The SBCW30LT1G belongs to onsemi's general-purpose bipolar transistor product line, designed specifically for reliable, low-cost signal amplification and switching in harsh-environment applications including automotive and industrial control systems.
FAQ
What is the maximum junction temperature rating for the SBCW30LT1G?
The SBCW30LT1G has a specified junction and storage temperature range of −55 °C to +150 °C. This rating is validated per JEDEC standards and supports operation in under-hood automotive environments and industrial enclosures without forced cooling. The SBCW30LT1G thermal resistance (RJA) is 556 °C/W on FR-5 board, meaning a 225 mW power dissipation yields a 125 °C rise above ambient at TA = 25 °C.
Is the SBCW30LT1G pin-compatible with the BCW30LT1G?
Yes, the SBCW30LT1G and BCW30LT1G share identical SOT-23 (Style 6) pinout: Pin 1 = Base, Pin 2 = Emitter, Pin 3 = Collector. Both devices use the same die and electrical specifications; the "S" prefix denotes AEC-Q101 qualification and PPAP capability, while the base part number lacks automotive certification. No PCB layout change is needed when substituting SBCW30LT1G for BCW30LT1G in new designs requiring qualification.
What does the "S" prefix in SBCW30LT1G signify?
The "S" prefix in SBCW30LT1G indicates that the device meets AEC-Q101 stress test requirements for automotive applications and is PPAP-capable. This includes qualification for temperature cycling, humidity bias, mechanical shock, and ESD robustness - all documented and controlled under onsemi's automotive quality system. The SBCW30LT1G is manufactured at an IATF 16949-certified site with full traceability, distinguishing it from the non-S-prefixed BCW30LT1G.
Can the SBCW30LT1G be used in linear amplifier configurations?
Yes, the SBCW30LT1G is characterized for linear operation with guaranteed hFE of 215–500 at −2 mAC/−5 VCE, and low noise figure (≤10 dB at 1 kHz). Its consistent gain across current and temperature makes it suitable for Class-A audio preamplifiers, sensor signal conditioning, and feedback networks where predictable transconductance is required. Designers should verify bias stability using the VBE(on) range (−0.6 V to −0.75 V) and thermal derating curves in the datasheet.
What is the typical output capacitance of the SBCW30LT1G and how does it affect high-frequency performance?
The SBCW30LT1G has a maximum output capacitance (Cobo) of 7.0 pF at −10 VCB and 1 MHz. This low value supports usable bandwidth up to ~100 MHz in common-emitter configurations, as confirmed by the fT (current-gain bandwidth product) curve in Figure 13 of the datasheet. In RF or fast-switching applications, this capacitance interacts with collector load impedance to form a low-pass pole; designers should limit collector resistances to <1 kΩ for >10 MHz response.
SBCW30LT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 32 V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 215 @ 2mA, 5V
- Power - Max:
- 300 mW
- Frequency - Transition:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3 (TO-236)
SBCW30LT1G FAQ
1.How can I place an order for SBCW30LT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SBCW30LT1G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SBCW30LT1G reliable?
The price and inventory of SBCW30LT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBCW30LT1G is usually 5 days.
3.What payment methods are accepted for SBCW30LT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBCW30LT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBCW30LT1G?
SBCW30LT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBCW30LT1G order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SBCW30LT1G?
For technical support, including SBCW30LT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBCW30LT1G requirements.
6.How does Aetrix verify that SBCW30LT1G is sourced from the original manufacturer or authorized distributors?
All SBCW30LT1G products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SBCW30LT1G meets industry standards.
7.What is the process for return or replacement of SBCW30LT1G?
All SBCW30LT1G units undergo pre-shipment inspection (PSI). If there is an issue with SBCW30LT1G, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SBCW30LT1G part is unused and in its original packaging.
Return procedure for SBCW30LT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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