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Nexperia USA Inc. BCM847BS/ZLX
- Part No.:
- BCM847BS/ZLX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Bipolar Transistor Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BCM847BS/ZLX.pdf
- Description:
- TRANS 2NPN 45V 0.1A 6TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,840
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Product details
Overview
BCM847BS from Nexperia is an AEC-Q101-qualified NPN/NPN matched double transistor in SOT363-3 (SC-88) package, featuring hFE matching ratio ≥0.9, VBE matching ≤2 mV, and 45 V VCEO per transistor-designed for precision current mirroring and differential amplification in automotive signal conditioning circuits.
For engineers reviewing the BCM847BS datasheet, BCM847BS pinout, BCM847BS application, or BCM847BS equivalent, this page delivers verified matching specifications, thermal derating data, TSSOP6 layout guidance, and AEC-Q101 qualification context essential for high-reliability analog design validation.
Technical Context
This dual NPN transistor integrates two fully isolated silicon junctions on a single die with matched hFE (0.9–1.0 ratio) and base-emitter voltage (ΔVBE ≤2 mV at IC = 2 mA), enabling stable bias tracking across temperature. Its 100 mA continuous collector current rating and 200 mW per-device power dissipation support compact, thermally constrained PCB layouts.
The device operates with VCE = 5 V, IC = 2 mA as the reference condition for matching parameters; transition frequency reaches 100–250 MHz at IC = 10 mA, supporting high-speed analog feedback loops while maintaining low noise figure (≤3.3 dB at 1 kHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V per transistor - sets maximum supply rail headroom for current mirror saturation control |
| IC | 100 mA per transistor - defines maximum linear operating current before thermal rolloff |
| hFE Matching | 0.9–1.0 ratio - ensures ≤10% gain mismatch between transistors for balanced differential pair operation |
| VBE Matching | ≤2 mV difference - enables sub-0.1% input offset tracking in precision current mirrors |
| Ptot (per device) | 300 mW - supports dual-transistor operation at ambient ≤25 °C without forced cooling |
| fT | 100–250 MHz - allows stable closed-loop response up to ~10 MHz in emitter-coupled configurations |
| AEC-Q101 | Qualified - confirms suitability for automotive under-hood temperature cycling (−40 °C to +125 °C) |
Pinout & Package
SOT363-3 (TSSOP6) plastic surface-mounted package with 0.65 mm lead pitch, 2.2 mm × 1.35 mm body, and exposed pad-free construction optimized for reflow soldering only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | E1 | Emitter of Transistor 1 - connects to low-side current sink node in mirror topology |
| 2 | B1 | Base of Transistor 1 - bias input for reference leg; requires stable voltage or current source |
| 3 | C2 | Collector of Transistor 2 - output node for mirrored current in dual-transistor configuration |
| 4 | E2 | Emitter of Transistor 2 - tied to E1 in current mirror; shared emitter node enables ratio accuracy |
| 5 | B2 | Base of Transistor 2 - connected to B1 in mirror; driven by same bias for matched VBE |
| 6 | C1 | Collector of Transistor 1 - reference current output node; sets magnitude for mirrored leg |
Key Features
| Feature | Design Value |
|---|---|
| Matched hFE ratio | 0.9–1.0 ensures ≤10% current gain variation between transistors over temperature and process |
| Matched VBE | ≤2 mV difference at 2 mA enables <0.1% input offset in differential amplifier front-ends |
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| Thermal resistance (j-a) | 416 K/W per device - allows 300 mW dissipation with ≤125 °C junction rise above 25 °C ambient |
| Drop-in replacement | Direct substitute for BC847BS-based designs without layout or bias network changes |
Applications
| Current Mirror | Differential Amplifier |
|---|---|
|
Use Scenario: Precision current replication in sensor biasing circuits for automotive oxygen sensors and pressure transducers. IC Role / Device Role / Timing Role: Dual NPN transistor pair configured as active current source with shared emitter and base connection. Use Value: ΔVBE ≤2 mV ensures <0.1% current error over −40 °C to +125 °C, critical for calibrated analog front-ends. |
Use Scenario: Input stage of automotive-grade instrumentation amplifiers for wheel speed or battery monitoring. IC Role / Device Role / Timing Role: Matched NPN pair forming emitter-coupled differential pair with common-emitter degeneration. Use Value: hFE matching ratio ≥0.9 maintains CMRR >70 dB across production lots and temperature extremes. |
| Automotive Signal Conditioning | Industrial Sensor Interface |
|
Use Scenario: Biasing and level-shifting in LIN bus transceiver input stages and CAN node protection circuits. IC Role / Device Role / Timing Role: Dual transistor used for rail-to-rail input clamping and current-limited pull-up/pull-down networks. Use Value: AEC-Q101 qualification and 150 °C max junction temperature support under-hood deployment without derating. |
Use Scenario: High-accuracy current sourcing for 4–20 mA loop transmitters in industrial process control systems. IC Role / Device Role / Timing Role: Reference leg and output leg of two-transistor Howland current source topology. Use Value: 100 mA collector rating and 45 V VCEO enable direct interface with 24 V industrial rails and transient suppression. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar matched NPN transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BCM857BS | PNP/PNP matched pair with identical package and matching specs (hFE ratio ≥0.9, ΔVBE ≤2 mV) | Required for complementary current mirror or PNP-input differential pairs | Select when circuit topology demands PNP polarity or complementary biasing |
| BC847BS | Unmatched version - no guaranteed hFE or VBE matching; otherwise identical electrical ratings and footprint | Suitable for non-critical biasing where matching tolerance >10% is acceptable | Choose for cost-sensitive applications where matching is not required for functional performance |
Compared with BCM857BS and BC847BS, the BCM847BS uniquely delivers guaranteed NPN/NPN matching for precision analog functions-making it irreplaceable in current mirrors and differential amplifiers where offset and gain tracking are design-critical.
Availability
BCM847BS is available at Aetrix Electronics and suitable for automotive signal conditioning, industrial sensor interfaces, current mirror circuits, and differential amplifier designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BCM847BS 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 focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging technologies.
The BCM847BS belongs to Nexperia's AEC-Q101-qualified matched transistor product line, engineered specifically for precision analog functions in automotive and industrial environments where parameter matching and thermal stability are mandatory.
FAQ
Is BCM847BS pin-compatible with BC847BS?
Yes-BCM847BS uses identical SOT363-3 (TSSOP6) pinout and footprint as BC847BS, allowing direct PCB replacement. The only functional difference is guaranteed hFE and VBE matching in BCM847BS, which does not affect physical layout or soldering requirements.
What is the maximum allowable ambient temperature for continuous 100 mA operation?
At 100 mA per transistor (200 mA total device current), the 300 mW per-device power dissipation limits ambient temperature to ≤25 °C for safe operation without derating. Above 25 °C, linear derating applies at 2.4 mW/°C based on Rth(j-a) = 416 K/W.
Does BCM847BS require special PCB layout considerations for matching performance?
Yes-symmetrical copper pour, equal trace lengths to bases/emitters, and thermal isolation between transistors minimize thermal gradients that degrade matching. Avoid placing heat sources near pins 1–2 or 4–5 to preserve VBE tracking within 2 mV.
Can BCM847BS be used in linear regulator pass transistor applications?
No-it is not rated for linear regulation duty. With only 45 V VCEO and no Safe Operating Area (SOA) curves provided, BCM847BS lacks the voltage margin, power handling, and thermal robustness required for pass transistor use; it is optimized for switching and small-signal analog matching roles.
BCM847BS/ZLX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- -
- Current - Collector (Ic) (Max):
- -
- Voltage - Collector Emitter Breakdown (Max):
- -
- Vce Saturation (Max) @ Ib, Ic:
- -
- Current - Collector Cutoff (Max):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- -
- Power - Max:
- -
- Frequency - Transition:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSSOP
BCM847BS/ZLX FAQ
1.How can I place an order for BCM847BS/ZLX through Aetrix?
Please submit a Request for Quotation (RFQ) for BCM847BS/ZLX 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 BCM847BS/ZLX reliable?
The price and inventory of BCM847BS/ZLX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCM847BS/ZLX is usually 5 days.
3.What payment methods are accepted for BCM847BS/ZLX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCM847BS/ZLX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCM847BS/ZLX?
BCM847BS/ZLX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCM847BS/ZLX 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 BCM847BS/ZLX?
For technical support, including BCM847BS/ZLX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCM847BS/ZLX requirements.
6.How does Aetrix verify that BCM847BS/ZLX is sourced from the original manufacturer or authorized distributors?
All BCM847BS/ZLX 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 BCM847BS/ZLX meets industry standards.
7.What is the process for return or replacement of BCM847BS/ZLX?
All BCM847BS/ZLX units undergo pre-shipment inspection (PSI). If there is an issue with BCM847BS/ZLX, 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 BCM847BS/ZLX part is unused and in its original packaging.
Return procedure for BCM847BS/ZLX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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