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Diodes Incorporated BC56-16PAWQ-7
- Part No.:
- BC56-16PAWQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- 3-UDFN Exposed Pad
- Datasheet:
-
BC56-16PAWQ-7.pdf
- Description:
- TRANS NPN 80V 1A W-DFN2020-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,242
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Product details
Overview
BC56-16PAWQ from Diodes Incorporated is an AEC-Q101 qualified 80V NPN medium-power transistor in a W-DFN2020-3/SWP (Type A) package, delivering 1A continuous collector current, <500mV VCE(sat) at 0.5A, and 100MHz fT, designed for automotive AF driver and output stage switching.
For engineers reviewing the BC56-16PAWQ datasheet, BC56-16PAWQ pinout, BC56-16PAWQ application, or BC56-16PAWQ equivalent, key selection criteria include VCEO = 80V, IC = 1A, RθJA = 250°C/W, wettable flank plating for AOI, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This NPN bipolar junction transistor operates with a minimum BVCEO of 80V and supports high-speed switching via 100MHz transition frequency (fT) under 50mA/10V conditions. Its low 0.62mm profile and 4mm² footprint enable space-constrained automotive PCB layouts.
The device features a 0.6mm nominal height, sidewall matte tin plating for automated optical inspection, and thermal resistance of 40°C/W junction-to-case - critical for thermally demanding medium-power amplification and switching in thin-profile modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 80V - Ensures safe operation in 48V automotive systems with transient margin |
| IC (continuous) | 1A - Supports medium-power load switching without external heatsinking |
| VCE(sat) | <500mV @ 0.5A - Minimizes conduction loss and self-heating in linear/switching modes |
| fT | 100MHz - Enables audio-frequency amplification and fast digital switching |
| RθJA | 250°C/W - Defines maximum power dissipation (500mW) on standard FR-4 with 2oz copper |
| ESD HBM | 4kV - Provides robust handling during SMT assembly and board-level integration |
| Moisture Sensitivity | Level 1 per J-STD-020 - Eliminates bake requirements prior to reflow |
Pinout & Package
Package: W-DFN2020-3/SWP (Type A), 2.0 × 2.0 × 0.62 mm, molded green plastic (UL 94V-0), with wettable flanks and matte tin terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Top View: Left) | Collector (C) | Main current-carrying terminal; exposed pad connects to internal collector for thermal and electrical path |
| Pin 2 (Top View: Center) | Emitter (E) | Current return path; tied to ground reference in common-emitter configurations |
| Pin 3 (Top View: Right) | Base (B) | Control input; requires ~50mA drive for full saturation at IC = 500mA |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including PPAP-capable manufacturing in IATF 16949 facilities |
| Wettable flank plating | Sidewall matte tin enables reliable solder joint inspection via AOI without X-ray |
| 50% smaller footprint vs SOT23 | 4mm² area reduces PCB real estate while maintaining thermal performance via exposed collector pad |
| Green, halogen-free construction | <900ppm Br/Cl, <1000ppm Sb - meets global environmental compliance mandates |
| Low-profile 0.62mm height | Enables use in ultra-thin modules such as LED drivers and sensor interface boards |
Applications
| Automotive Audio Output Stage | 48V DC-DC Converter Driver |
|---|---|
Use Scenario: Driving speaker loads in infotainment head units requiring clean Class AB amplification. IC Role / Device Role / Timing Role: NPN medium-power switch/amplifier operating in linear mode with 100MHz fT bandwidth. Use Value: Low VCE(sat) minimizes heat generation in sealed enclosures; AEC-Q101 ensures lifetime reliability under thermal cycling. | Use Scenario: High-side or low-side switching in buck converter gate drive stages for 48V mild-hybrid systems. IC Role / Device Role / Timing Role: Fast-switching NPN transistor controlling MOSFET gate charge/discharge paths. Use Value: 100MHz fT and 115ns fall time support efficient PWM operation up to 500kHz; 80V VCEO accommodates voltage spikes. |
| Industrial Sensor Signal Conditioning | LED Driver Current Control |
Use Scenario: Amplifying low-level analog signals from pressure or temperature sensors before ADC sampling. IC Role / Device Role / Timing Role: Medium-gain (hFE = 63–250) linear amplifier with stable biasing at 5–500mA. Use Value: Wide hFE range allows consistent gain across production lots; low leakage (<10nA ICBO) preserves signal integrity. | Use Scenario: Constant-current regulation for high-brightness LED strings in automotive lighting modules. IC Role / Device Role / Timing Role: Linear current-pass element controlled by feedback loop in analog dimming circuits. Use Value: 1A IC rating and 500mW PD support multi-LED loads; low VCE(sat) improves efficiency and thermal margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN medium-power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZXTN25050DFHTA | Higher VCEO (100V), lower RθJA (200°C/W), same DFN2020-3 package | Better suited for 72V industrial systems; higher thermal efficiency allows >600mW dissipation | Select when higher voltage margin or improved thermal headroom is required |
| BC56-16PAS-7 | Same die, but in SOT-323 package (3.0 × 1.4 × 1.1mm); no wettable flanks | Larger footprint and taller profile; lacks AOI-compatible plating; not AEC-Q101 qualified | Choose only for non-automotive, cost-sensitive designs where AOI and qualification are unnecessary |
Compared with ZXTN25050DFHTA and BC56-16PAS-7, BC56-16PAWQ uniquely combines AEC-Q101 qualification, wettable flanks for automotive AOI, and optimized 0.62mm height - making it the only choice for thin-profile, safety-conscious automotive signal switching.
Availability
BC56-16PAWQ is available at Aetrix Electronics and suitable for automotive audio output stages, 48V DC-DC converter drivers, and LED driver current control requiring stable component supply and long-term lifecycle assurance.
Supply support for BC56-16PAWQ 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and consumer markets.
The BC56-16PAWQ belongs to Diodes' AEC-Q101-qualified medium-power transistor product line, engineered specifically for automotive signal switching and amplification where space, thermal performance, and process traceability are critical.
FAQ
Is BC56-16PAWQ pin-compatible with BC546 or BC846 series transistors?
No. BC56-16PAWQ uses a W-DFN2020-3/SWP (Type A) package with Collector–Emitter–Base pinout (left-to-right), whereas BC546/BC846 use TO-92 or SOT-23 packages with different pin assignments and thermal characteristics. Direct substitution is not electrically or mechanically viable.
What is the maximum allowable PCB pad size for the exposed collector pad?
The recommended pad layout specifies a 1.30mm × 1.30mm exposed collector pad (dimension "C") with 0.265mm gap to adjacent traces. Exceeding this size may compromise solder joint integrity due to excessive thermal mass during reflow, risking voiding or tombstoning.
Does BC56-16PAWQ support pulsed operation beyond its 1A continuous rating?
Yes - it supports 2A peak pulse current (ICM) with ≤2% duty cycle and ≤300µs pulse width, as verified under pulsed test conditions. This enables short-duration surge handling in motor drive or solenoid control applications without thermal runaway.
Can BC56-16PAWQ be used in high-humidity environments without conformal coating?
Yes - its fully RoHS-compliant, halogen-free molding compound (UL 94V-0) and matte tin plating provide inherent resistance to moisture ingress and corrosion. However, for sustained exposure >85% RH or condensing environments, conformal coating is still recommended per IPC-CC-830B Class 1.
BC56-16PAWQ-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 3-UDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 1 A
- Voltage - Collector Emitter Breakdown (Max):
- 80 V
- Vce Saturation (Max) @ Ib, Ic:
- 500mV @ 50mA, 500mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 150mA, 2V
- Power - Max:
- 500 mW
- Frequency - Transition:
- 150MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- W-DFN2020-3 (Type A)
BC56-16PAWQ-7 FAQ
1.How can I place an order for BC56-16PAWQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BC56-16PAWQ-7 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 BC56-16PAWQ-7 reliable?
The price and inventory of BC56-16PAWQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC56-16PAWQ-7 is usually 5 days.
3.What payment methods are accepted for BC56-16PAWQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC56-16PAWQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC56-16PAWQ-7?
BC56-16PAWQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC56-16PAWQ-7 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 BC56-16PAWQ-7?
For technical support, including BC56-16PAWQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC56-16PAWQ-7 requirements.
6.How does Aetrix verify that BC56-16PAWQ-7 is sourced from the original manufacturer or authorized distributors?
All BC56-16PAWQ-7 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 BC56-16PAWQ-7 meets industry standards.
7.What is the process for return or replacement of BC56-16PAWQ-7?
All BC56-16PAWQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with BC56-16PAWQ-7, 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 BC56-16PAWQ-7 part is unused and in its original packaging.
Return procedure for BC56-16PAWQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC56-16PAWQ-7 Tags
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Diodes Incorporated
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