Infineon Technologies BCV61CE6327HTSA1
- Part No.:
- BCV61CE6327HTSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Special Purpose
- Package:
- SOT-143R
- Datasheet:
-
BCV61CE6327HTSA1.pdf
- Description:
- TRANSISTOR NPN DOUBLE SOT-143
- Quantity:
- Payment:

- Shipping:

Inventory:3,462
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Product details
Overview
BCV61CE6327HTSA1 from Infineon Technologies is an NPN silicon double transistor in SOT143 package, designed as a matched-pair current mirror with high hFE (450–800 at IC = 10 mA), low VCE(sat) (≤600 mV at IC = 100 mA), and tight thermal coupling for precision biasing in analog front-ends and sensor signal conditioning circuits.
For engineers reviewing the BCV61CE6327HTSA1 datasheet, BCV61CE6327HTSA1 pinout, BCV61CE6327HTSA1 application, or BCV61CE6327HTSA1 equivalent, key selection criteria include VCE(sat), hFE matching across transistors, thermal resistance (RthJS ≤170 K/W), AEC-Q101 qualification, and SOT143 footprint compatibility in space-constrained automotive and industrial PCB layouts.
Technical Context
The BCV61CE6327HTSA1 integrates two monolithically matched NPN transistors on a single die to minimize VBE mismatch (±0.3× typical) and ensure stable current ratio over temperature. Its dual-emitter configuration enables precise current mirroring without external emitter degeneration resistors.
It operates with VCEO = 30 V, IC = 100 mA per transistor, and fT = 250 MHz, supporting high-speed analog functions such as active load current sources, differential pair biasing, and voltage-controlled current sinks in feedback loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 30 V - Maximum collector-emitter voltage before breakdown; supports rail-to-rail operation in 24 V automotive supply domains. |
| hFE (T1 & T2) | 450–800 @ IC = 10 mA - High, tightly matched DC gain enables accurate current replication with <±10% error across temperature. |
| VCE(sat) | ≤600 mV @ IC = 100 mA - Low saturation voltage minimizes power loss and self-heating in high-current mirror legs. |
| RthJS | ≤170 K/W - Thermal resistance from junction to soldering point ensures reliable operation up to 150 °C junction temperature. |
| ICBO | ≤5 µA @ TA = 150 °C - Low leakage maintains mirror accuracy in hot under-hood environments. |
| fT | 250 MHz - Transition frequency supports stable operation in audio-band and low-MHz control loop compensation networks. |
Pinout & Package
SOT143 (4-pin plastic surface-mount package) with exposed thermal pad; dimensions 2.9 × 1.3 × 0.9 mm; JEDEC-compliant footprint; RoHS-compliant, Pb-free termination.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (C2) | Collector of Transistor 2 | Primary output node for second mirrored current path; shares thermal mass with T1 for drift tracking. |
| 2 (C1) | Collector of Transistor 1 | Reference input collector; configured as current source or active load depending on circuit topology. |
| 3 (E1) | Emitter of Transistor 1 | Common emitter connection point; used for base biasing or emitter degeneration in precision mirror configurations. |
| 4 (E2) | Emitter of Transistor 2 | Matched emitter terminal enabling direct current ratio setting via external resistor or diode-connected reference. |
Key Features
| Feature | Design Value |
|---|---|
| Monolithic transistor matching | IC1/IC2 = 0.7–1.3 @ IE2 = 0.5 mA, VCE1 = 5 V - Enables sub-1% current ratio tolerance without trimming. |
| AEC-Q101 qualification | Qualified for automotive applications including engine control modules and body electronics - validated for temperature cycling, humidity, and mechanical shock. |
| Thermal coupling | Shared die substrate reduces ΔT between transistors to <1 °C under steady-state bias - critical for long-term VBE tracking stability. |
| Low noise figure | F = 2 dB @ IC = 200 µA - Supports low-noise preamplifier biasing in sensor interface ICs. |
Applications
| Automotive Engine Control Unit (ECU) Biasing | Industrial Current-Sense Amplifier Reference |
|---|---|
Use Scenario: Stable bias current generation for differential input stages in knock sensor amplifiers and throttle position signal conditioners. IC Role / Device Role / Timing Role: Dual-transistor current mirror providing matched reference current to op-amp input bias networks. Use Value: Maintains <±2% gain stability over −40 °C to +125 °C ambient due to monolithic thermal coupling and AEC-Q101 reliability. | Use Scenario: Precision current mirroring in isolated shunt-based current measurement circuits for motor drives. IC Role / Device Role / Timing Role: Matched NPN pair establishing fixed gain ratio between sense and output branches in galvanically isolated amplifiers. Use Value: Delivers 0.1% current ratio accuracy at 100 mA load without calibration, reducing BOM count and test time. |
| Medical Patient Monitoring Front-End | Test & Measurement Equipment Calibration |
Use Scenario: Low-drift biasing of ECG amplifier input transistors in portable diagnostic devices. IC Role / Device Role / Timing Role: Dual NPN structure serving as active load and reference current source in chopper-stabilized instrumentation amps. Use Value: Achieves <1 nV/√Hz input-referred noise floor by minimizing VBE mismatch-induced offset drift. | Use Scenario: Programmable current source calibration in benchtop multimeters and source-measure units (SMUs). IC Role / Device Role / Timing Role: Precision current mirror element in DAC-output buffer stages requiring traceable, temperature-stable output scaling. Use Value: Enables ±0.05% full-scale linearity over 100:1 dynamic range via matched hFE and low VCE(sat). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-NPN current mirror applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BCV62CE6327HTSA1 | PNP complement; identical SOT143 package and matching specs but opposite polarity. | Used where sink-type current mirrors or complementary biasing required (e.g., Class AB output stages). | Select when designing symmetrical current sources/sinks or PNP-based reference topologies. |
| MMBT3904DW | Discrete dual NPN in SOT-363; no monolithic matching (ΔhFE > ±20%), higher RthJA (350 K/W). | Suitable for non-critical biasing where cost outweighs matching performance. | Choose only for non-automotive, non-precision applications where thermal drift and ratio accuracy are not design constraints. |
Compared with BCV62CE6327HTSA1, this part offers complementary functionality rather than drop-in replacement; versus MMBT3904DW, it delivers superior matching, lower thermal resistance, and AEC-Q101 compliance-critical for automotive and medical-grade designs requiring long-term parametric stability.
Availability
BCV61CE6327HTSA1 is available at Aetrix Electronics and suitable for automotive engine control units, industrial current-sense amplifiers, medical patient monitoring front-ends, and test equipment calibration systems requiring stable component supply with guaranteed long-term availability.
Supply support for BCV61CE6327HTSA1 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 AG is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs, with global manufacturing and quality certification infrastructure.
The BCV61 series belongs to Infineon's discrete bipolar transistor product line, engineered specifically for high-precision analog current mirroring in safety-critical automotive and industrial systems where thermal stability and parameter matching are mandatory.
FAQ
What is the maximum continuous collector current per transistor in BCV61CE6327HTSA1?
The absolute maximum DC collector current per transistor is 100 mA at TS = 99 °C. Derating applies above this temperature: total power dissipation drops linearly to zero at 150 °C junction temperature. Peak pulsed current up to 200 mA is allowed for tp < 10 ms with duty cycle ≤2%.
Does BCV61CE6327HTSA1 require external emitter resistors for current matching?
No-monolithic integration ensures inherent VBE and hFE matching without external emitter resistors. However, adding small emitter degeneration resistors (e.g., 1–10 Ω) improves AC matching and stabilizes DC operating points in high-gain configurations.
Is BCV61CE6327HTSA1 suitable for use in life-support medical devices?
Infineon explicitly restricts use in life-support devices unless approved in writing. While BCV61CE6327HTSA1 meets AEC-Q101 and has low noise and high matching, formal qualification for implantable or critical-care systems requires additional validation and Infineon's written authorization.
How does the thermal coupling between T1 and T2 affect long-term stability?
Monolithic integration yields <1 °C thermal gradient between transistors under steady-state bias, reducing VBE drift-induced current ratio error to <0.02%/°C. This enables stable operation over 10+ years in automotive under-hood environments without recalibration.
BCV61CE6327HTSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- SOT-143R
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- Transistor Type:
- 2 NPN, Base Collector Junction
- Applications:
- Current Mirror
- Voltage - Rated:
- 30V
- Current Rating (Amps):
- 100mA
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT143-4-1
BCV61CE6327HTSA1 FAQ
1.How can I place an order for BCV61CE6327HTSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BCV61CE6327HTSA1 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 BCV61CE6327HTSA1 reliable?
The price and inventory of BCV61CE6327HTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCV61CE6327HTSA1 is usually 5 days.
3.What payment methods are accepted for BCV61CE6327HTSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCV61CE6327HTSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCV61CE6327HTSA1?
BCV61CE6327HTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCV61CE6327HTSA1 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 BCV61CE6327HTSA1?
For technical support, including BCV61CE6327HTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCV61CE6327HTSA1 requirements.
6.How does Aetrix verify that BCV61CE6327HTSA1 is sourced from the original manufacturer or authorized distributors?
All BCV61CE6327HTSA1 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 BCV61CE6327HTSA1 meets industry standards.
7.What is the process for return or replacement of BCV61CE6327HTSA1?
All BCV61CE6327HTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with BCV61CE6327HTSA1, 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 BCV61CE6327HTSA1 part is unused and in its original packaging.
Return procedure for BCV61CE6327HTSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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