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Nexperia USA Inc. BCM847BS/ZLF
- Part No.:
- BCM847BS/ZLF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Bipolar Transistor Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BCM847BS/ZLF.pdf
- Description:
- TRANS 2NPN 45V 0.1A 6TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,787
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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. It serves as a precision current mirror or differential pair 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 resistance data (416 K/W per device), junction temperature limit (150 °C), and validated AEC-Q101 qualification status for automotive-grade design assurance.
Technical Context
The BCM847BS integrates two fully isolated NPN transistors on a single die with matched hFE (0.9–1.0) and VBE (≤2 mV difference), enabling high-accuracy analog functions without external trimming. Its TSSOP6 footprint supports dense PCB layouts while maintaining thermal separation between devices.
Designed for reflow-only assembly on FR4 PCBs, it delivers 300 mW total power dissipation at Tamb ≤25 °C and exhibits fT ≥100 MHz at IC = 10 mA, supporting stable operation in low-noise amplifier and biasing applications up to 15.7 kHz bandwidth.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum collector-emitter voltage per transistor before breakdown; defines safe operating range in 12 V/24 V automotive supply rails. |
| IC | 100 mA - Continuous collector current per transistor; supports medium-current mirror and differential pair biasing. |
| hFE Matching | 0.9–1.0 - Ratio of smaller/larger hFE values; ensures <10% gain mismatch critical for precision current mirroring. |
| VBE Matching | ≤2 mV - Absolute difference in base-emitter voltage at 2 mA; enables sub-0.1% input offset in differential amplifiers. |
| Ptot (per device) | 300 mW - Total power dissipation limit at Tamb ≤25 °C; allows dual-transistor operation without derating on standard FR4. |
| Rth(j-a) | 416 K/W - Junction-to-ambient thermal resistance per device; informs heatsinking requirements for sustained 100 mA operation. |
| AEC-Q101 | Qualified - Validated for automotive use per stress test standard; supports under-hood and ADAS sensor interface designs. |
Pinout & Package
SOT363-3 (TSSOP6) plastic surface-mounted package with 0.65 mm lead pitch, 2.2 mm × 1.35 mm body size, and exposed pad not present. Designed for reflow soldering only on FR4 PCBs with defined footprint per Figure 12.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | E1 | Emitter of Transistor 1 - Connected to reference node in current mirror or differential pair emitter degeneration. |
| 2 | B1 | Base of Transistor 1 - Input control terminal for biasing TR1; matched to B2 for symmetric operation. |
| 3 | C2 | Collector of Transistor 2 - Output node for mirrored current or differential output stage. |
| 4 | E2 | Emitter of Transistor 2 - Shared or independently biased emitter node; fully isolated from E1. |
| 5 | B2 | Base of Transistor 2 - Matched counterpart to B1; enables balanced base drive in differential configurations. |
| 6 | C1 | Collector of Transistor 1 - Primary current source node in mirror topology or active load in amplifier stages. |
Key Features
| Feature | Design Value |
|---|---|
| hFE matching | Ratio ≥0.9 ensures predictable current transfer ratio in mirror circuits without calibration. |
| VBE matching | ≤2 mV difference enables <0.1% input offset in discrete differential amplifiers at 2 mA bias. |
| AEC-Q101 qualification | Validated for automotive ambient temperatures (−65 °C to +150 °C) and mechanical stress conditions. |
| Thermal performance | 416 K/W Rth(j-a) per device allows dual-transistor operation within 300 mW limit on standard FR4. |
| Drop-in replacement | Pin-compatible with BC847BS and functionally aligned with BCM857BS (PNP/PNP complement). |
Applications
| Current Mirror | Differential Amplifier |
|---|---|
|
Use Scenario: Precision current replication in automotive sensor bias networks requiring stable 1:1 current transfer across temperature. IC Role / Device Role / Timing Role: Dual NPN pair configured as active load and current source with matched hFE and VBE. Use Value: Achieves <1% current error over −40 °C to +125 °C due to ≤2 mV VBE mismatch and 0.9 hFE ratio. |
Use Scenario: Front-end amplification of low-level signals from wheel speed or pressure sensors in ADAS modules. IC Role / Device Role / Timing Role: Matched NPN pair forming emitter-coupled differential pair with common-emitter degeneration. Use Value: Delivers <0.5 mV input offset and 100 MHz fT for stable DC-coupled gain up to 15.7 kHz bandwidth. |
| Automotive Voltage Reference | Engine Control Unit Bias Network |
|
Use Scenario: Stable bandgap-independent reference generation using matched VBE characteristics in engine control ICs. IC Role / Device Role / Timing Role: Two matched transistors operating at different current densities to produce ΔVBE proportional to absolute temperature. Use Value: Enables ±0.5 °C temperature sensing accuracy via 2 mV VBE matching tolerance and 150 °C Tj rating. |
Use Scenario: Biasing of fuel injector drivers and ignition coil interfaces where thermal drift must be minimized. IC Role / Device Role / Timing Role: Dual transistor providing matched base drive and current feedback paths in high-side switch control loops. Use Value: Maintains <5% gain variation across −40 °C to +150 °C ambient, supporting ASIL-B functional safety compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar matched NPN transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC847BS | Unmatched version; no hFE or VBE matching specification; same pinout and basic ratings. | Lacks precision matching required for current mirrors or differential pairs; suitable only for non-critical switching. | Select when cost sensitivity outweighs matching requirements and circuit tolerates >10% hFE variation. |
| BCM857BS | PNP/PNP matched pair; complementary polarity; identical SOT363-3 package and matching specs (hFE ≥0.9, VEB ≤2 mV). | Used in complementary differential pairs or PNP-based current mirrors; not interchangeable in NPN-only topologies. | Choose for complementary bias networks or when designing push-pull output stages with matched PNP legs. |
Compared with BC847BS, BCM847BS adds guaranteed matching for analog precision but shares identical footprint and voltage/current ratings; versus BCM857BS, it provides NPN polarity essential for high-side current sources and common-emitter amplifiers in 12 V systems.
Availability
BCM847BS is available at Aetrix Electronics and suitable for automotive sensor interfaces, ADAS front-end signal conditioning, and engine control unit bias networks requiring stable component supply across extended temperature ranges.
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.
BCM847BS belongs to Nexperia's AEC-Q101-qualified matched transistor product line, engineered specifically for precision analog functions in automotive signal chains where thermal stability and parameter matching are critical.
FAQ
Is BCM847BS pin-compatible with BC847BS?
Yes, BCM847BS uses the identical SOT363-3 (TSSOP6) package and pin configuration as BC847BS, with pins 1–6 assigned identically to E1, B1, C2, E2, B2, and C1. This enables drop-in replacement where matching performance is required without layout changes.
What is the maximum continuous collector current per transistor?
The maximum continuous collector current per transistor is 100 mA, as specified in Table 5 (Limiting Values) under IC. This rating applies at Tamb ≤25 °C with FR4 PCB mounting and reflow soldering; derating is required above 25 °C ambient per thermal resistance data.
Does BCM847BS support wave soldering?
No - the datasheet explicitly states that reflow soldering is the only recommended method. Wave soldering is not qualified for BCM847BS due to thermal stress risks on the SOT363-3 package; Figure 13 shows a wave footprint but notes it is for reference only and not endorsed for production.
How is hFE matching defined for BCM847BS?
hFE matching is defined as the ratio of the smaller hFE value to the larger hFE value (hFE1/hFE2), with a minimum of 0.9. This metric ensures predictable current transfer in mirror configurations and is measured at VCE = 5 V, IC = 2 mA, and Tamb = 25 °C per transistor.
BCM847BS/ZLF 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/ZLF FAQ
1.How can I place an order for BCM847BS/ZLF through Aetrix?
Please submit a Request for Quotation (RFQ) for BCM847BS/ZLF 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/ZLF reliable?
The price and inventory of BCM847BS/ZLF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCM847BS/ZLF is usually 5 days.
3.What payment methods are accepted for BCM847BS/ZLF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCM847BS/ZLF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCM847BS/ZLF?
BCM847BS/ZLF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCM847BS/ZLF 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/ZLF?
For technical support, including BCM847BS/ZLF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCM847BS/ZLF requirements.
6.How does Aetrix verify that BCM847BS/ZLF is sourced from the original manufacturer or authorized distributors?
All BCM847BS/ZLF 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/ZLF meets industry standards.
7.What is the process for return or replacement of BCM847BS/ZLF?
All BCM847BS/ZLF units undergo pre-shipment inspection (PSI). If there is an issue with BCM847BS/ZLF, 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/ZLF part is unused and in its original packaging.
Return procedure for BCM847BS/ZLF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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