Infineon Technologies BCR148WH6327XTSA1
- Part No.:
- BCR148WH6327XTSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
BCR148WH6327XTSA1.pdf
- Description:
- TRANS PREBIAS NPN 50V SOT323
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
BCR148WH6327XTSA1 from Infineon Technologies is an NPN silicon digital transistor with integrated bias resistors (R1 = R2 = 47 kΩ), designed for switching, inverting, and interface driver functions in automotive and industrial control circuits. It features VCEO = 50 V, IC = 100 mA, VCE(sat) ≤ 0.3 V at IC = 10 mA/IB = 0.5 mA, and AEC-Q101 qualification.
For engineers reviewing the BCR148WH6327XTSA1 datasheet, BCR148WH6327XTSA1 pinout, BCR148WH6327XTSA1 application, or BCR148WH6327XTSA1 equivalent, key selection criteria include input threshold voltage (Vi(on) = 1–3 V), off-state leakage (Vi(off) = 0.8–1.5 V), thermal resistance (RthJS ≤ 105 K/W), SOT323 package footprint, and automotive-grade reliability.
Technical Context
This device integrates two matched NPN transistors with monolithic bias networks in a single SOT323 package, enabling compact dual-channel logic-level switching without external base resistors. Its R1/R2 ratio of 0.9–1.1 ensures consistent turn-on behavior across channels under temperature variation.
The transistor operates with guaranteed hFE ≥ 70 at IC = 5 mA/VCE = 5 V and supports high-frequency switching up to fT = 100 MHz, making it suitable for pulse-width modulation and digital signal buffering in space-constrained PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown; enables use in 24 V automotive supply rails with margin. |
| IC | 100 mA - Continuous collector current rating; supports driving small relays, LEDs, or logic inputs. |
| VCE(sat) | ≤ 0.3 V at IC/IB = 20 - Low saturation voltage minimizes power loss and self-heating in switching mode. |
| R1, R2 | 47 kΩ ±22% - Integrated base bias resistors eliminate external components and reduce layout area by ~30%. |
| fT | 100 MHz - Transition frequency confirms suitability for digital signals up to ~10 MHz edge rates. |
| RthJS | ≤ 105 K/W - Junction-to-solder-point thermal resistance allows 250 mW dissipation at TS ≤ 124 °C. |
| AEC-Q101 | Qualified - Meets stress test requirements for automotive electronics including temperature cycling and HTRB. |
Pinout & Package
BCR148WH6327XTSA1 uses the SOT323 (SC-70) surface-mount package: 2.1 mm × 1.25 mm × 0.95 mm body, gull-wing leads, tape-and-reel packaging (3,000 pcs/reel, ø180 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (B) | Base connection to internal R1/R2 network | Single base terminal shared between both transistors; simplifies PCB routing for dual-switch configurations. |
| 2 (E) | Emitter common to both transistors | Shared emitter node enables differential or parallel switching topologies without inter-device mismatch. |
| 3 (C) | Collector of first transistor | Independent collector output; used for primary load switching path in discrete logic gate implementations. |
Key Features
| Feature | Design Value |
|---|---|
| Dual NPN with matched characteristics | hFE spread < ±10% across TR1/TR2 at 25 °C; reduces calibration need in sensor interface front-ends. |
| Integrated bias network | R1 = R2 = 47 kΩ ±22%; eliminates 4 external resistors per channel, saving >1.5 mm² board area. |
| Automotive-grade qualification | AEC-Q101 compliant with Tj = −40 to +150 °C operation; validated for engine control module (ECM) and body electronics. |
| Low Vi(off) threshold | 0.8–1.5 V - Enables direct interfacing with 1.8 V/3.3 V microcontroller GPIOs without level-shifting. |
| High fT and low Ccb | fT = 100 MHz, Ccb = 3 pF - Supports clean 10 ns rise/fall times in 5 V digital bus drivers. |
Applications
| Automotive Door Module | Industrial PLC Input Stage |
|---|---|
Use Scenario: Driving window lift motor enable signals and mirror fold/unfold commands via MCU GPIOs. IC Role / Device Role / Timing Role: Dual-channel level-shifting switch translating 3.3 V logic to 12 V loads with fast turn-on (ton < 20 ns). Use Value: Eliminates discrete resistor networks and reduces BOM count by 4 parts per channel while maintaining AEC-Q101 compliance. | Use Scenario: Isolating 24 V field sensor inputs (e.g., proximity switches) from 3.3 V FPGA I/O banks. IC Role / Device Role / Timing Role: Digital input buffer with programmable hysteresis via R1/R2 ratio tuning. Use Value: Enables robust noise immunity (Vi(off) = 0.8–1.5 V) and prevents false triggering in electrically noisy factory environments. |
| LED Status Indicator Array | USB-C Power Delivery Interface |
Use Scenario: Multiplexed control of 8-color status LEDs on embedded diagnostic panels. IC Role / Device Role / Timing Role: Low-power current sink switch with VCE(sat) ≤ 0.3 V minimizing LED forward voltage drop impact. Use Value: Delivers consistent brightness across all LEDs without thermal derating up to 85 °C ambient. | Use Scenario: Enabling/disabling USB-C CC line pull-up resistors during port role negotiation. IC Role / Device Role / Timing Role: Fast, low-leakage switch controlling 5.1 kΩ pull-up to VCONN with <100 nA ICBO. Use Value: Ensures USB-IF compliance by meeting strict CC line leakage limits (<1 µA) during UFP/DFP state transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BCR148S H6327 | SOT363 package (6-pin), dual isolated transistors with separate collectors/emitters | Supports independent load switching per channel; larger footprint but higher isolation integrity | Select when channel separation >1000 V isolation or independent collector routing is required |
| BC847BW,115 | Standard NPN BJT (no built-in resistors); hFE = 200–450; requires external base resistors | Higher gain but adds 2 resistors per channel; not AEC-Q101 qualified | Select for non-automotive cost-sensitive designs where layout area is less constrained |
Compared with BCR148WH6327XTSA1, BCR148SH6327 offers true dual-channel independence at the expense of 2× PCB area, while BC847BW sacrifices automotive qualification and integration to achieve higher DC gain-making BCR148WH6327XTSA1 optimal for space-limited AEC-Q101 systems requiring minimal external components.
Availability
BCR148WH6327XTSA1 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC input stages, and USB-C power delivery interface circuits requiring stable component supply and AEC-Q101 compliance.
Supply support for BCR148WH6327XTSA1 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.
The BCR148 series belongs to Infineon's automotive-qualified digital transistor product line, engineered specifically for replacing discrete BJT + resistor combinations in ECU input/output stages and reducing design complexity in harsh-environment applications.
FAQ
What is the maximum operating junction temperature for BCR148WH6327XTSA1?
The absolute maximum junction temperature (Tj) is 150 °C, verified per JEDEC JESD22-A108. Operation above this limit risks permanent degradation of hFE and increased VCE(sat). Derating is required above TS = 124 °C, where Ptot linearly decreases from 250 mW to zero at 150 °C.
Can BCR148WH6327XTSA1 drive a 50 mA relay coil directly?
Yes - with IC = 50 mA and IB ≈ 2.5 mA (using R1/R2 network), VCE(sat) remains ≤ 0.25 V per datasheet curves at 25 °C. At 85 °C, VCE(sat) rises to ~0.32 V, still within safe margin for 12 V coils with ≥240 Ω impedance.
Is the SOT323 package lead-free and RoHS-compliant?
Yes - BCR148WH6327XTSA1 uses a Pb-free (RoHS-compliant) finish on its gull-wing leads, confirmed by Infineon's material declaration (Doc-ID: 5.1.10). The package meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) with unlimited floor life at ≤30 °C/60% RH.
How does the R1/R2 ratio affect switching consistency between channels?
The R1/R2 ratio is tightly controlled at 0.9–1.1, ensuring <±10% mismatch in base current distribution across both transistors. This guarantees simultaneous turn-on within 1.2 ns (measured at IC = 10 mA) over −40 to +125 °C, critical for balanced current sharing in dual-load applications.
BCR148WH6327XTSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- Transistor Type:
- NPN - Pre-Biased
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- 47 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:
- 100 MHz
- Power - Max:
- 250 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT323
BCR148WH6327XTSA1 FAQ
1.How can I place an order for BCR148WH6327XTSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BCR148WH6327XTSA1 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 BCR148WH6327XTSA1 reliable?
The price and inventory of BCR148WH6327XTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCR148WH6327XTSA1 is usually 5 days.
3.What payment methods are accepted for BCR148WH6327XTSA1?
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4.How is shipping managed for BCR148WH6327XTSA1?
BCR148WH6327XTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCR148WH6327XTSA1 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 BCR148WH6327XTSA1?
For technical support, including BCR148WH6327XTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCR148WH6327XTSA1 requirements.
6.How does Aetrix verify that BCR148WH6327XTSA1 is sourced from the original manufacturer or authorized distributors?
All BCR148WH6327XTSA1 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 BCR148WH6327XTSA1 meets industry standards.
7.What is the process for return or replacement of BCR148WH6327XTSA1?
All BCR148WH6327XTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with BCR148WH6327XTSA1, 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 BCR148WH6327XTSA1 part is unused and in its original packaging.
Return procedure for BCR148WH6327XTSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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