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Infineon Technologies BCR185WE6327
- Part No.:
- BCR185WE6327
- Manufacturer:
- Infineon Technologies
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
BCR185WE6327.pdf
- Description:
- TRANS PREBIAS PNP 50V SOT323-3
- Quantity:
- Payment:
- Shipping:
Inventory:366,000
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Product details
Overview
BCR185WE6327 from Infineon Technologies is a PNP silicon digital transistor with integrated bias resistors (R1 = 10 kΩ, R2 = 47 kΩ), designed for switching, inverting, interface, and driver circuits in automotive and industrial control systems. It features VCEO = 50 V, IC = 100 mA, VCE(sat) ≤ 0.3 V at IC = 10 mA/IB = 0.5 mA, and is AEC-Q101 qualified.
For engineers reviewing the BCR185WE6327 datasheet, BCR185WE6327 pinout, BCR185WE6327 application, or BCR185WE6327 equivalent, key selection considerations include its built-in resistor ratio (R1/R2 ≈ 0.21), input on/off voltage thresholds (Vi(on) ≤ 1.4 V, Vi(off) ≥ 0.5 V), thermal resistance (RthJS ≤ 105 K/W), and SOT323 package compatibility with space-constrained PCB layouts.
Technical Context
This device integrates a single PNP bipolar junction transistor with two monolithic resistors (R1 = 10 kΩ, R2 = 47 kΩ) forming a base-bias network that enables direct logic-level drive without external components. Its design eliminates need for discrete base resistors in low-power switching applications.
It operates as a saturated switch with guaranteed VCE(sat) ≤ 0.3 V under specified drive conditions and supports ambient temperatures up to 125 °C while maintaining hFE ≥ 70 at IC = 5 mA/VCE = 5 V. The internal resistor tolerances ensure consistent turn-on behavior across production lots.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown; sets upper limit for supply rail compatibility in 24 V automotive systems. |
| IC | 100 mA - Continuous collector current rating; suitable for driving small relays, LEDs, or logic inputs. |
| VCE(sat) | ≤ 0.3 V at IC = 10 mA/IB = 0.5 mA - Low saturation voltage minimizes power loss and self-heating during switching. |
| R1 / R2 | 10 kΩ / 47 kΩ - Fixed internal bias network enabling direct TTL/CMOS interface without external resistors. |
| fT | 200 MHz typical - Transition frequency confirms suitability for high-speed digital switching up to ~10–20 MHz edge rates. |
| RthJS | ≤ 105 K/W - Junction-to-soldering-point thermal resistance; enables reliable operation at TS ≤ 124 °C in SOT323 footprint. |
Pinout & Package
BCR185WE6327 is housed in a RoHS-compliant SOT323 (SC-70) surface-mount plastic package with gull-wing leads and a 1.3 mm × 2.1 mm footprint. Pin 1 = Base, Pin 2 = Emitter, Pin 3 = Collector.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Base) | Input node connected to internal R1–R2 divider midpoint | Accepts logic-level input; internal bias network ensures stable turn-on without external pull-up/down. |
| 2 (Emitter) | Emitting terminal of PNP transistor | Connected to higher potential rail (e.g., +5 V or +12 V); current flows from emitter to collector when active. |
| 3 (Collector) | Output node tied to load return path | Switches low-side loads (e.g., LED cathode, relay coil ground) or interfaces with downstream logic inputs. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias resistors | R1 = 10 kΩ ±30 %, R2 = 47 kΩ ±30 % - Eliminates two external components and reduces PCB area by >1.5 mm² per channel. |
| AEC-Q101 qualification | Qualified for automotive applications per stress test requirements - supports use in engine control, body electronics, and ADAS subsystems. |
| Logic-compatible input thresholds | Vi(on) ≤ 1.4 V, Vi(off) ≥ 0.5 V - Ensures robust switching with 3.3 V and 5 V CMOS/TTL outputs without level-shifting. |
| Low thermal resistance | RthJS ≤ 105 K/W - Enables 250 mW power dissipation at board temperature ≤ 124 °C, improving reliability in sealed enclosures. |
Applications
| Automotive Door Module | Industrial PLC Input Stage |
|---|---|
Use Scenario: Switching window lift motor direction signals and mirror fold/unfold commands in door control units. IC Role / Device Role / Timing Role: Digital switch translating microcontroller GPIO outputs into isolated, current-limited drive for small DC motors and solenoids. Use Value: Built-in R1/R2 network prevents latch-up during ESD transients and ensures clean turn-off even with floating MCU pins during reset. |
Use Scenario: Level-shifting and isolation of 24 V field sensor inputs (e.g., proximity switches, limit sensors) into 3.3 V FPGA or microcontroller I/O banks. IC Role / Device Role / Timing Role: Interface transistor providing galvanic decoupling and voltage translation between industrial field side and logic side. Use Value: VCEO = 50 V withstands induced surges on long cable runs; AEC-Q101 qualification ensures longevity in harsh factory environments. |
| LED Status Indicator Driver | USB-C Port Power Switch Control |
Use Scenario: Driving multi-color status LEDs (red/green/blue) on consumer electronics front panels with minimal component count. IC Role / Device Role / Timing Role: Low-current saturated switch controlling LED anode connection to regulated supply rails. Use Value: VCE(sat) ≤ 0.3 V limits forward voltage drop, preserving brightness and reducing thermal load on PCB traces. |
Use Scenario: Enabling/disabling VBUS power paths in USB-C receptacles based on CC line detection logic. IC Role / Device Role / Timing Role: Fast-turning PNP switch controlling gate of external N-channel load switch or PMIC enable input. Use Value: fT = 200 MHz allows sub-microsecond response to CC state changes, meeting USB PD specification timing margins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP digital transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BCR190WE6327 | Same SOT323 package; R1 = 47 kΩ, R2 = 47 kΩ (R1/R2 = 1.0); hFE min = 30 | Higher input threshold (Vi(on) ≈ 2.0 V); less sensitive to noise but requires stronger drive | Select when interfacing with open-drain outputs or needing higher noise immunity in noisy industrial settings. |
| NSV11201MT1G | PNP digital transistor in SOT23; R1 = 10 kΩ, R2 = 10 kΩ; VCEO = 50 V; not AEC-Q101 qualified | Larger package (SOT23 vs SOT323); no automotive qualification; lower thermal resistance (RthJS ≤ 90 K/W) | Choose for cost-sensitive non-automotive designs where board space is less constrained and qualification is not required. |
Compared with BCR190WE6327 and NSV11201MT1G, BCR185WE6327 offers optimal balance of low input threshold, compact SOT323 footprint, and AEC-Q101 compliance-making it preferred for space-limited automotive signal switching where deterministic turn-on at 1.4 V is critical.
Availability
BCR185WE6327 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input conditioning, and USB-C power path control requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for BCR185WE6327 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
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949.
BCR185WE6327 belongs to Infineon's BCR family of digital transistors engineered for simplified logic-level interfacing in automotive and industrial applications-reducing bill-of-materials count and improving system-level reliability.
FAQ
Is BCR185WE6327 pin-compatible with standard SOT323 PNP transistors?
No. While it shares the SOT323 mechanical footprint, BCR185WE6327 integrates internal bias resistors connecting Pin 1 (Base) to VCC and Pin 2 (Emitter), making it functionally distinct from bare PNP transistors. Direct substitution without circuit review will cause incorrect biasing or failure to switch.
What is the maximum allowable continuous collector current at 85 °C ambient?
At TA = 85 °C, derating applies: Ptot drops to ~180 mW (per Fig. 5), limiting IC to approximately 85 mA assuming VCE(sat) = 0.3 V. This ensures junction temperature remains below 150 °C with proper PCB copper area.
Does BCR185WE6327 support PWM switching at 100 kHz?
Yes. With fT = 200 MHz and VCE(sat) < 0.3 V, it supports clean switching at 100 kHz for duty cycles ≥ 5 %. Rise/fall times are typically < 10 ns, minimizing switching losses in LED dimming or motor control feedback paths.
Can BCR185WE6327 replace a discrete BCP53-16 in a 5 V logic interface?
No. BCP53-16 is a bare PNP transistor requiring external base resistors. Replacing it with BCR185WE6327 would short the base drive node through R2 unless the original resistor network is removed. Circuit redesign is mandatory to avoid latch-up or excessive base current.
BCR185WE6327 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Bulk
- Product Status:
- Active
- Transistor Type:
- PNP - Pre-Biased
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- 10 kOhms
- Resistor - Emitter Base (R2):
- 47 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 70 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- Frequency - Transition:
- 200 MHz
- Power - Max:
- 250 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT323-3-1
BCR185WE6327 FAQ
1.How can I place an order for BCR185WE6327 through Aetrix?
Please submit a Request for Quotation (RFQ) for BCR185WE6327 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 BCR185WE6327 reliable?
The price and inventory of BCR185WE6327 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCR185WE6327 is usually 5 days.
3.What payment methods are accepted for BCR185WE6327?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCR185WE6327 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCR185WE6327?
BCR185WE6327 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCR185WE6327 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 BCR185WE6327?
For technical support, including BCR185WE6327 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCR185WE6327 requirements.
6.How does Aetrix verify that BCR185WE6327 is sourced from the original manufacturer or authorized distributors?
All BCR185WE6327 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 BCR185WE6327 meets industry standards.
7.What is the process for return or replacement of BCR185WE6327?
All BCR185WE6327 units undergo pre-shipment inspection (PSI). If there is an issue with BCR185WE6327, 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 BCR185WE6327 part is unused and in its original packaging.
Return procedure for BCR185WE6327:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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