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onsemi BCW68GLT1
- Part No.:
- BCW68GLT1
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- -
- Datasheet:
-
BCW68GLT1.pdf
- Description:
- TRANS PNP GP 45V 800MA SOT-23
- Quantity:
- Payment:
- Shipping:
Inventory:84,000
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Product details
Overview
BCW68GLT1 from onsemi is a PNP silicon general-purpose transistor in SOT-23 package, rated for −45 VCEO, −800 mA continuous collector current, and 100 MHz fT, used in automotive load switching, voltage-level translation, and discrete amplifier stages.
For engineers reviewing the BCW68GLT1 datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, thermal derating behavior, AEC-Q101 qualification status, and validated SOT-23 terminal mapping per onsemi's official documentation.
Technical Context
This PNP bipolar junction transistor operates with a minimum DC current gain (hFE) of 120 at −10 mA IC, rising to 160 at −100 mA IC, and sustaining usable gain down to −300 mA. Its −0.7 V VCE(sat) at −500 mA/−50 mA drive enables efficient low-voltage switching in 3.3 V and 5 V logic-controlled circuits.
Thermal performance is defined for two board types: 225 mW dissipation on FR-5 (RJA = 556 °C/W) and 300 mW on alumina substrate (RJA = 417 °C/W), with linear derating above 25 °C. Junction temperature range spans −55 °C to +150 °C, supporting under-hood automotive deployment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −45 Vdc - Maximum safe collector-emitter reverse bias before breakdown in open-base configuration. |
| IC (cont.) | −800 mAdc - Continuous collector current rating defining maximum steady-state load-handling capability. |
| fT | 100 MHz - Current-gain bandwidth product indicating usable small-signal amplification up to ~100 MHz. |
| VCE(sat) | −0.7 Vdc @ −500 mA/−50 mA - Low saturation voltage enabling <0.35 W conduction loss in high-current switching. |
| hFE | 120–400 - DC current gain range across operating conditions, supporting reliable base-drive design from light to heavy loads. |
| Cobo | 18 pF - Output capacitance limiting high-frequency response and affecting switching speed in capacitive-load applications. |
Pinout & Package
SOT-23 (TO-236) surface-mount package, 2.90 × 1.30 × 1.00 mm, with 1.90 mm lead pitch. Marking "DG" identifies BCW68GLT1G variant; Pb-free, RoHS-compliant, AEC-Q101 qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control electrode accepting forward-biased current to enable PNP conduction; requires negative voltage relative to emitter. |
| 2 | Emitter | Current source terminal; connected to higher potential rail in typical common-emitter switch configuration. |
| 3 | Collector | Current sink terminal; delivers load current to ground or lower-potential node when device is saturated. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and body electronics requiring reliability over temperature and lifetime. |
| NSV prefix | Indicates dedicated automotive production site and enhanced change control per PPAP requirements. |
| Pb-free / RoHS | Meets global environmental compliance mandates without compromising solderability or thermal cycling performance. |
| Low VCE(sat) | −0.7 V at −500 mA enables <10% voltage drop in 3.3 V systems, preserving headroom for downstream circuitry. |
Applications
| Automotive Door Module Switching | Industrial PLC Input Conditioning |
|---|---|
Use Scenario: Driving resistive and inductive loads (e.g., window motor relays, LED status indicators) in door control units exposed to −40 °C to +125 °C ambient. IC Role / Device Role / Timing Role: Discrete PNP switch controlling 12 V loads via microcontroller GPIO with level-shifting interface. Use Value: AEC-Q101 qualification ensures long-term reliability; −45 V VCEO withstands load-dump transients up to ISO 7637-2 Pulse 1. |
Use Scenario: Converting 24 V industrial sensor signals to 3.3 V/5 V logic levels for FPGA or MCU inputs in programmable logic controllers. IC Role / Device Role / Timing Role: Level translator and current buffer isolating field-side 24 V inputs from low-voltage digital logic. Use Value: High hFE (≥120) allows minimal base drive current; −5.0 V VEBO prevents emitter-base breakdown during reverse polarity faults. |
| Consumer Appliance Power Sequencing | Medical Diagnostic Equipment Biasing |
Use Scenario: Enabling sequential power-up of subsystems (e.g., display backlight, motor driver, communication IC) in smart home appliances. IC Role / Device Role / Timing Role: Discrete PNP enable switch activated by system controller to gate 5 V or 12 V rails. Use Value: −0.7 V VCE(sat) minimizes dropout and heat generation during sustained on-state operation. |
Use Scenario: Providing stable bias current to op-amp input stages and precision reference buffers in portable diagnostic devices. IC Role / Device Role / Timing Role: Precision current source configured in emitter-follower topology for low-noise analog front-end biasing. Use Value: 10 dB noise figure at 1 kHz supports low-noise signal conditioning; −55 °C to +150 °C TJ range accommodates sealed enclosure thermal profiles. |
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 |
|---|---|---|---|
| BCW66GLT1G | Lower VCEO (−32 V), lower IC (−500 mA), same SOT-23 package and pinout. | Not suitable for 42 V automotive load-dump environments; limited to ≤24 V systems. | Select when cost sensitivity outweighs voltage margin and peak current demand. |
| MMBT6520LT1G | Higher VCEO (−60 V), lower hFE (min 60), same SOT-23 footprint but different pinout (Style 7: E-B-C). | Requires PCB layout revision due to emitter/base pin swap; better for high-voltage transient immunity. | Choose only if VCEO > −45 V is mandatory and board redesign is feasible. |
Compared with BCW68GLT1, BCW66GLT1G trades voltage/current headroom for cost, while MMBT6520LT1G offers higher breakdown tolerance at the expense of gain and pin compatibility-neither is a drop-in replacement without validation.
Availability
BCW68GLT1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and consumer appliance power sequencing requiring stable component supply and AEC-Q101 compliance.
Supply support for BCW68GLT1 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 (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power, analog, sensing, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The BCW68GLT1 belongs to onsemi's automotive-qualified general-purpose transistor family, designed specifically for robust, cost-effective discrete switching and amplification in harsh-environment electronic control units.
FAQ
What is the maximum junction temperature rating for BCW68GLT1?
The BCW68GLT1 has a specified junction and storage temperature range of −55 °C to +150 °C. This rating is confirmed in the Thermal Characteristics table of the official onsemi datasheet (Rev. 9, October 2024), making BCW68GLT1 suitable for under-hood automotive applications where ambient temperatures exceed 105 °C.
Is BCW68GLT1 pin-compatible with BCW66GLT1G?
Yes, BCW68GLT1 and BCW66GLT1G share identical SOT-23 package Style 6 pinout (Base–Emitter–Collector on pins 1–2–3) and mechanical dimensions. However, BCW68GLT1 offers higher VCEO (−45 V vs. −32 V) and higher IC (−800 mA vs. −500 mA), so substitution requires verification of voltage and current margins in the target design.
Does BCW68GLT1 meet AEC-Q101 reliability standards?
Yes, BCW68GLT1 is explicitly AEC-Q101 qualified and PPAP capable, as stated in the Features section of the onsemi datasheet. The NSV prefix in the ordering part number NSVBCW68GLT1G further confirms its designation for automotive applications with enhanced process control and traceability.
What is the typical noise figure of BCW68GLT1 and at what conditions is it measured?
The BCW68GLT1 has a maximum noise figure of 10 dB, measured at IC = −0.2 mA, VCE = −5.0 V, RS = 1.0 kΩ, f = 1.0 kHz, and BW = 200 Hz. This value is specified in the Electrical Characteristics table and reflects its suitability for low-noise preamplifier and biasing roles in analog signal chains.
Can BCW68GLT1 be used in linear amplifier configurations?
Yes, BCW68GLT1 supports linear operation with verified hFE linearity across IC = −10 mA to −300 mA (120–160 min), and fT = 100 MHz provides usable bandwidth for audio and low-MHz signal amplification. Its VCE(sat) and thermal derating curves allow stable Class-A or AB biasing when mounted on appropriate PCB copper area.
BCW68GLT1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Transistor Type:
- -
- Current - Collector (Ic) (Max):
- -
- Voltage - Collector Emitter Breakdown (Max):
- -
- Vce Saturation (Max) @ Ib, Ic:
- -
- Current - Collector Cutoff (Max):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- -
- Power - Max:
- -
- Frequency - Transition:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
BCW68GLT1 FAQ
1.How can I place an order for BCW68GLT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BCW68GLT1 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 BCW68GLT1 reliable?
The price and inventory of BCW68GLT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCW68GLT1 is usually 5 days.
3.What payment methods are accepted for BCW68GLT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCW68GLT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCW68GLT1?
BCW68GLT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCW68GLT1 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 BCW68GLT1?
For technical support, including BCW68GLT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCW68GLT1 requirements.
6.How does Aetrix verify that BCW68GLT1 is sourced from the original manufacturer or authorized distributors?
All BCW68GLT1 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 BCW68GLT1 meets industry standards.
7.What is the process for return or replacement of BCW68GLT1?
All BCW68GLT1 units undergo pre-shipment inspection (PSI). If there is an issue with BCW68GLT1, 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 BCW68GLT1 part is unused and in its original packaging.
Return procedure for BCW68GLT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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