Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Discrete Semiconductor Products > Transistors > Special Purpose

Infineon Technologies BCV 61A E6327

Name: BCV 61A E6327
Brand: Infineon Technologies
SKU: BCV 61A E6327
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: BCV 61A E6327

Manufacturer:: Infineon Technologies

Category:: Special Purpose

Package:: TO-253-4, TO-253AA

Datasheet:: BCV 61A E6327.pdf

Description:: TRANSISTOR NPN DBL 30V SOT143-4

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:9,623

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

BCV61A E6327 from Infineon Technologies is an NPN silicon double transistor in SOT143 package, designed for current mirror applications with matched V_BE and tight thermal coupling between T1 and T2. It delivers h_FE = 200–420 (T1, I_C = 2 mA), V_CE(sat) ≤ 250 mV (I_C = 100 mA), and operates up to 150 °C junction temperature - used in precision biasing circuits for automotive sensor signal conditioning.

For engineers reviewing the BCV61A E6327 datasheet, BCV61A E6327 pinout, BCV61A E6327 application, or BCV61A E6327 equivalent, key selection criteria include dual-transistor matching tolerance (IC1/IC2 = 0.7–1.3 at 25 °C), AEC-Q101 qualification, low R_thJS ≤ 170 K/W, and RoHS-compliant SOT143 packaging for space-constrained analog subsystems.

Technical Context

The BCV61A integrates two monolithically matched NPN transistors on a single die to minimize V_BE mismatch and maximize thermal tracking - critical for stable current mirroring in bias networks. Its f_T = 250 MHz enables use in moderate-frequency analog feedback paths.

Each transistor supports V_CEO = 30 V, I_C = 100 mA DC, and exhibits low C_cb = 0.95 pF and C_eb = 9 pF, supporting clean small-signal operation. Matching is specified under defined test conditions (I_E2 = 0.5 mA, V_CE1 = 5 V) with guaranteed IC1/IC2 ratio of 0.7–1.3 across temperature.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	30 V - supports rail-to-rail biasing in 24 V automotive systems without breakdown risk
h_FE (T1, I_C = 2 mA)	200–420 - ensures predictable current gain in mirror ratio setting and low-error bias generation
V_CE(sat) (I_C = 100 mA)	≤250 mV - minimizes power loss and self-heating in high-current mirror legs
IC1/IC2 Matching	0.7–1.3 at 25 °C - enables <±30% current error in matched-pair configurations without external trimming
f_T	250 MHz - allows stable operation in audio-band and low-MHz analog control loops
R_thJS	≤170 K/W - supports reliable thermal management on standard FR4 PCBs without heatsinking
AEC-Q101 Qualified	Yes - validated for automotive underhood environments including thermal cycling and humidity testing

Pinout & Package

SOT143 surface-mount package: 4-pin, 1.7 mm × 2.9 mm footprint, 0.95 mm height, lead-free matte tin plating, JEDEC-compliant tape-and-reel (3,000 pcs/reel, ø180 mm).

Pin/Terminal	Circuit Role	Design Meaning
1 (C2)	Collector of Transistor T2	Output node for second mirror leg; shares substrate thermal path with T1 for drift compensation
2 (C1)	Collector of Transistor T1	Main current mirror output; electrically isolated but thermally coupled to T2 via shared die
3 (E1)	Emitter of Transistor T1	Reference input node; connects to bias resistor or current source for mirror input
4 (E2)	Emitter of Transistor T2	Matched output emitter; used with external resistor to set mirror ratio or compensate for V_BE shift

Key Features

Feature	Design Value
Monolithic transistor pair	Guaranteed V_BE matching and thermal coupling on single die - eliminates discrete pairing errors
Low V_CE(sat)	250 mV max at 100 mA - reduces conduction loss and improves efficiency in bias networks
AEC-Q101 qualification	Validated for automotive grade-1 (−40 °C to +125 °C ambient) operation with lifetime reliability
High f_T	250 MHz - supports stable closed-loop performance in analog feedback circuits up to ~20 MHz
RoHS-compliant SOT143	Pb-free, halogen-free package compatible with lead-free reflow profiles and automated assembly

Applications

Automotive Sensor Biasing

Current Mirror Reference

Use Scenario: Providing matched, temperature-stable bias currents for Hall-effect and RTD sensor front-ends in engine control units.

IC Role / Device Role / Timing Role: Dual NPN current mirror delivering identical collector currents to two sensor elements for differential measurement.

Use Value: IC1/IC2 ratio stability (0.7–1.3) over −40 °C to +150 °C ensures <±1.5% offset drift in sensor outputs without calibration.

Use Scenario: Generating precise, low-drift reference current for voltage regulators and op-amp bias networks in infotainment power supplies.

IC Role / Device Role / Timing Role: High-gain, matched transistor pair establishing stable I_REF independent of supply variation.

Use Value: h_FE ≥ 200 and V_CE(sat) ≤ 250 mV enable sub-1% current error at 50 mA load with minimal headroom.

Thermal Compensation Circuit

Low-Noise Analog Front-End

Use Scenario: Compensating for temperature-induced V_BE drift in precision current sources for battery monitoring ICs.

IC Role / Device Role / Timing Role: Paired transistors with matched thermal coefficients used in emitter-degeneration topology.

Use Value: Monolithic thermal coupling (R_thJS ≤ 170 K/W) limits ΔT between T1/T2 to <2 °C at 100 mW dissipation - reducing drift by >80% vs. discretes.

Use Scenario: Implementing low-noise preamplifier biasing in ADAS radar receiver chains.

IC Role / Device Role / Timing Role: Dual-transistor configuration minimizing noise contribution while maintaining gain stability.

Use Value: F = 2 dB (1 kHz) and C_eb = 9 pF support high-SNR amplification with bandwidth >10 MHz and minimal parasitic loading.

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
BCV62A E6327	PNP/NPN complementary pair instead of NPN/NPN; V_CEO = 30 V, h_FE = 160–360	Required where sink/source mirroring or level-shifting is needed - not direct replacement for NPN-only topologies	Select only when complementary current steering or push-pull biasing is required
MBT3904DW1T1G	Two independent 2N3904-type NPNs in SOT-363; no monolithic matching or thermal coupling; h_FE = 100–300	Lacks guaranteed matching or thermal tracking - suitable only for non-critical biasing where ±20% current error is acceptable	Use only in cost-sensitive, non-automotive designs where matching is not required

Compared with BCV61A E6327, BCV62A E6327 enables bidirectional current control but sacrifices NPN-only compatibility, while MBT3904DW1T1G offers lower cost but no guaranteed matching - making BCV61A the sole choice for AEC-Q101-compliant, thermally stable current mirrors.

Availability

BCV61A E6327 is available at Aetrix Electronics and suitable for automotive sensor biasing, precision current reference generation, and thermal compensation circuits requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for BCV61A E6327 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 bipolar discrete portfolio, engineered specifically for high-reliability analog functions in automotive and industrial systems where matched transistor behavior and thermal stability are essential.

FAQ

What is the maximum continuous collector current per transistor in BCV61A E6327?

The absolute maximum DC collector current per transistor is 100 mA, as specified in the "Maximum Ratings" table. This rating assumes T_S = 99 °C and accounts for thermal derating above that temperature. Operation beyond this limit risks permanent degradation due to junction overheating or bond wire failure.

Does BCV61A E6327 support operation at 150 °C junction temperature?

Yes - the device is rated for T_j = 150 °C maximum, and its electrical characteristics (including ICBO ≤ 5 µA and h_FE retention) are validated at this temperature. However, sustained operation requires careful PCB thermal design to maintain T_S ≤ 99 °C per the P_tot vs. T_S curve.

How is current matching measured for BCV61A E6327?

Matching is defined as IC1/IC2 ratio measured at I_E2 = 0.5 mA and V_CE1 = 5 V, with T_A = 25 °C. The datasheet guarantees 0.7–1.3, meaning T1 collector current deviates no more than ±30% from T2 under those exact test conditions - not extrapolated to other bias points.

Can BCV61A E6327 be used in linear amplifier configurations?

While not optimized as a general-purpose amplifier, BCV61A E6327 supports linear operation with f_T = 250 MHz and h_21e = 100–900. Its low C_cb (0.95 pF) and noise figure (2 dB) make it viable for low-gain, low-noise preamp stages - but gain stability depends on external emitter degeneration and thermal layout.

BCV 61A E6327 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: TO-253-4, TO-253AA

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

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-SOT-143-3D

BCV 61A E6327 FAQ

1.How can I place an order for BCV 61A E6327 through Aetrix?

Please submit a Request for Quotation (RFQ) for BCV 61A E6327 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 BCV 61A E6327 reliable?

The price and inventory of BCV 61A E6327 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCV 61A E6327 is usually 5 days.

3.What payment methods are accepted for BCV 61A E6327?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCV 61A E6327 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BCV 61A E6327?

BCV 61A E6327 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BCV 61A E6327 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 BCV 61A E6327?

For technical support, including BCV 61A E6327 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCV 61A E6327 requirements.

6.How does Aetrix verify that BCV 61A E6327 is sourced from the original manufacturer or authorized distributors?

All BCV 61A E6327 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 BCV 61A E6327 meets industry standards.

7.What is the process for return or replacement of BCV 61A E6327?

All BCV 61A E6327 units undergo pre-shipment inspection (PSI). If there is an issue with BCV 61A E6327, 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 BCV 61A E6327 part is unused and in its original packaging.

Return procedure for BCV 61A E6327:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…

2026-08-11 LDO Regulator: Dropout Voltage, Noise, PSRR and Power Dissipation

LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…

2026-08-06 Conditional Access Module: CAM, CI/CI+ and DVB Security

Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…

2026-08-03 Electronic Component Obsolescence: EOL Risks, Replacement Options and Last-Time Buy Strategy

Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…

2026-07-17 Raspberry Pi Alternatives: Chip-Level Comparison, Compatibility and Replacement Guide

Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…

2026-07-13 How to Test Dynamic Load Response in Low-Voltage High-Current Buck Converters

Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…