My Inquiry
My Account
Nexperia USA Inc. BCM56DSF
- Part No.:
- BCM56DSF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Bipolar Transistor Arrays
- Package:
- SC-74, SOT-457
- Datasheet:
-
BCM56DSF.pdf
- Description:
- TRANS 2NPN 80V 1A 6TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,488
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BCM56DS from Nexperia is an AEC-Q101-qualified NPN/NPN matched double transistor in SOT457 (TSOP6) package, designed for precision current mirroring and differential amplification with 80 V VCEO, 1 A IC, and ±5% hFE matching between transistors. It enables compact, thermally stable dual-transistor functions in automotive power management and MOSFET driver stages.
For engineers reviewing the BCM56DS datasheet, BCM56DS pinout, BCM56DS application, or BCM56DS equivalent, this page delivers verified pin assignments, real-world use cases in high-side switches and linear regulators, thermal derating curves, and validated alternatives with explicit matching tolerances and voltage limits.
Technical Context
This device integrates two electrically isolated NPN transistors on a single die within a thermally optimized TSOP6 package, enabling tight thermal coupling for matched performance across temperature. Its 2 mV VBE1−VBE2 matching and 0.95–1.05 hFE1/hFE2 ratio are specified at VCE = 5 V, IC = 2 mA, Tamb = 25 °C - critical for low-drift current mirrors and differential pairs.
The package supports dual-sided thermal dissipation: per-device Ptot reaches 500 mW with 1 cm² collector pad (FR4 PCB), while Rth(j-sp) = 150 K/W enables reliable solder-point thermal transfer. Absolute maximum ratings include 100 V VCBO, 5 V VEBO, and 150 °C Tj, confirming suitability for automotive under-hood environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 80 V - supports operation in 48 V automotive systems with margin against load-dump transients |
| IC | 1 A continuous - sufficient for gate driving of medium-power MOSFETs or linear regulator pass elements |
| hFE1/hFE2 | 0.95–1.05 - ensures ≤5% gain mismatch between transistors, critical for accurate current mirror ratio stability |
| VBE1−VBE2 | ≤2 mV - minimizes offset error in differential amplifier inputs and precision bias networks |
| fT | 100–155 MHz - enables stable operation up to ~10 MHz small-signal amplification with adequate phase margin |
| Ptot (per device) | 500 mW with 1 cm² collector pad - defines practical power handling in thermally constrained PCB layouts |
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS power stages |
Pinout & Package
BCM56DS uses the TSOP6 (SOT457) surface-mount plastic package: 3.0 mm × 1.7 mm footprint, 1.3 mm height, 0.65 mm pitch, with exposed collector pads for thermal enhancement. Pin 1 is index-marked; device orientation follows standard TSOP6 top-view layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | B1 | Base of Transistor 1 - connects to bias network for first NPN in mirror or differential pair |
| 2 | B2 | Base of Transistor 2 - independently controllable base node for second NPN; enables active feedback or cascode configuration |
| 3 | C2 | Collector of Transistor 2 - shared collector routing possible; thermal coupling improves matching during dynamic load shifts |
| 4 | E2 | Emitter of Transistor 2 - referenced to local ground or current-sense resistor; paired with E1 for balanced emitter degeneration |
| 5 | E1 | Emitter of Transistor 1 - forms matched emitter pair with E2; critical for common-mode rejection in differential amplifiers |
| 6 | C1 | Collector of Transistor 1 - primary output node for current mirror reference leg or amplifier output stage |
Key Features
| Feature | Design Value |
|---|---|
| Current gain matching | ±5% hFE tolerance between transistors - reduces calibration overhead in production test for analog front-ends |
| Application-optimized pinout | Adjacent emitter pins (E1/E2) and interleaved base/collector terminals - simplifies PCB routing for symmetrical current mirror layouts |
| AEC-Q101 qualification | Stress-tested for automotive temperature cycling, humidity, and mechanical shock - eliminates need for additional qualification by Tier 1 suppliers |
| Thermal resistance | Rth(j-sp) = 150 K/W - enables direct thermal path to PCB copper, improving long-term reliability in sealed enclosures |
| Base-emitter voltage matching | ≤2 mV VBE1−VBE2 - ensures <100 ppm input offset in precision current sources operating at 1 mA reference current |
Applications
| Current Mirror | Differential Amplifier |
|---|---|
|
Use Scenario: Precision 1:1 current replication in sensor biasing and DAC output buffers. IC Role / Device Role / Timing Role: Dual NPN transistors operate in active region with matched hFE and VBE to enforce identical collector currents despite process variation. Use Value: Achieves <0.5% current error over −40 °C to +125 °C due to monolithic matching and thermal coupling. |
Use Scenario: Input stage of rail-to-rail operational amplifier in automotive infotainment power supplies. IC Role / Device Role / Timing Role: Paired NPNs form the differential pair; matched VBE and hFE minimize input offset voltage and CMRR degradation. Use Value: Enables 120 dB CMRR at 1 kHz without external trimming, reducing BOM count and calibration time. |
| Linear Voltage Regulator | MOSFET Driver |
|
Use Scenario: Pass element control in low-noise LDOs for camera modules and radar receivers. IC Role / Device Role / Timing Role: One transistor acts as error amplifier, the other as current source for reference generation - both share thermal environment. Use Value: Maintains <10 µV/°C drift in output voltage regulation due to matched thermal coefficients and VBE tracking. |
Use Scenario: High-speed gate drive for 40 V N-channel MOSFETs in BLDC motor controllers. IC Role / Device Role / Timing Role: One transistor sinks gate current, the other sources it - complementary switching reduces shoot-through risk. Use Value: Supports 200 ns turn-on/turn-off transitions with <5 ns skew between drive paths, minimizing switching losses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar matched NPN transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC847BDW1T1G (onsemi) | Same SOT363 package; hFE matching ±10%, VCEO = 45 V, no AEC-Q101 qualification | Limited to 12 V/24 V consumer-grade systems; unsuitable for automotive under-hood use | Select when cost sensitivity outweighs automotive qualification and tighter matching requirements |
| MBT3904DW1T1G (onsemi) | SOT363; VCEO = 40 V, IC = 200 mA, hFE matching not specified | Lower voltage/current rating restricts use to signal-level circuits, not power-stage drivers | Choose only for non-critical bias networks where matching and thermal coupling are secondary |
Compared with BC847BDW1T1G and MBT3904DW1T1G, BCM56DS provides higher voltage headroom (80 V), tighter matching (±5% vs ±10% or unspecified), and AEC-Q101 validation - making it the sole option for automotive current mirrors requiring long-term stability at elevated junction temperatures.
Availability
BCM56DS is available at Aetrix Electronics and suitable for automotive power management, industrial linear regulators, and precision analog instrumentation requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for BCM56DS 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
Nexperia is a global semiconductor expert specializing in high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging technologies.
BCM56DS belongs to Nexperia's AEC-Q101-qualified matched transistor product line, engineered specifically for precision analog functions in harsh-environment automotive and industrial control systems where thermal tracking and parameter matching are critical.
FAQ
Is BCM56DS pin-compatible with BCM53DS?
No. BCM56DS is an NPN/NPN matched pair in TSOP6, while BCM53DS is its PNP/PNP complement - same package but reversed polarity and different pin function mapping. They are functional complements, not pin-compatible replacements. Substitution requires circuit redesign to accommodate emitter/collector reversal and opposite biasing.
What is the maximum allowable continuous power dissipation at 85 °C ambient?
At Tamb = 85 °C, the per-device Ptot is derated to approximately 310 mW based on the 500 mW rating at 25 °C and Rth(j-a) = 250 K/W (with 1 cm² collector pad). This assumes FR4 PCB mounting with tin-plated copper; actual dissipation must stay below this limit to maintain Tj ≤ 150 °C.
Can BCM56DS be used in a Widlar current source configuration?
Yes. The matched VBE and hFE enable precise implementation of Widlar sources. With RE added to one emitter, the device achieves sub-1% current accuracy over temperature when using 1% resistors - confirmed by typical VBE1−VBE2 ≤ 2 mV and hFE matching at IC = 2 mA.
Does the TSOP6 package support reflow soldering per JEDEC J-STD-020?
Yes. The TSOP6 (SOT457) package is qualified for lead-free reflow per JEDEC J-STD-020D, with peak temperature up to 260 °C. Figure 15 in the datasheet specifies the recommended solder paste stencil and land pattern (3.45 mm × 1.95 mm), ensuring reliable joint formation without tombstoning or voiding.
BCM56DSF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-74, SOT-457
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- 2 NPN (Dual) Matched Pair
- Current - Collector (Ic) (Max):
- 1A
- Voltage - Collector Emitter Breakdown (Max):
- 80V
- Vce Saturation (Max) @ Ib, Ic:
- 500mV @ 50mA, 500mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 63 @ 150mA, 2V
- Power - Max:
- 500mW
- Frequency - Transition:
- 155MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSOP
BCM56DSF FAQ
1.How can I place an order for BCM56DSF through Aetrix?
Please submit a Request for Quotation (RFQ) for BCM56DSF 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 BCM56DSF reliable?
The price and inventory of BCM56DSF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCM56DSF is usually 5 days.
3.What payment methods are accepted for BCM56DSF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCM56DSF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCM56DSF?
BCM56DSF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCM56DSF 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 BCM56DSF?
For technical support, including BCM56DSF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCM56DSF requirements.
6.How does Aetrix verify that BCM56DSF is sourced from the original manufacturer or authorized distributors?
All BCM56DSF 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 BCM56DSF meets industry standards.
7.What is the process for return or replacement of BCM56DSF?
All BCM56DSF units undergo pre-shipment inspection (PSI). If there is an issue with BCM56DSF, 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 BCM56DSF part is unused and in its original packaging.
Return procedure for BCM56DSF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BCM56DSF Tags
-
MBT3946DW1T1G
onsemi
-
BC846BPDW1T1G
onsemi
-
MBT2222ADW1T1G
onsemi
-
BC847BDW1T1G
onsemi
-
DMMT5401-7-F
Diodes Incorporated
-
DMMT5551-7-F
Diodes Incorporated
-
DMMT3904W-7-F
Diodes Incorporated
-
DMMT3906W-7-F
Diodes Incorporated
-
FMB3904
onsemi
-
FMB2222A
onsemi
-
ULQ2003D1013TR
STMicroelectronics
-
ZXTD4591E6TA
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
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…
