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Nexperia USA Inc. BC847BS/ZLF
- Part No.:
- BC847BS/ZLF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Bipolar Transistor Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BC847BS/ZLF.pdf
- Description:
- TRANS 2NPN 45V 100MA 6-TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:8,297
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Product details
Overview
BC847BS/ZLF from Nexperia is a dual NPN general-purpose transistor pair in SOT363-3 (TSSOP6) package, rated for 45 V VCEO, 100 mA IC, and DC current gain (hFE) of 200–450 at 2 mA/5 V; used for compact dual-switching and amplification in space-constrained signal routing and level-shifting circuits.
For engineers reviewing the BC847BS/ZLF datasheet, BC847BS/ZLF pinout, BC847BS/ZLF application, or BC847BS/ZLF equivalent, this device supports matched-pair operation with low mutual interference, low VCE(sat) (≤300 mV), and tight hFE matching-critical for differential amplifiers, dual-stage logic interfaces, and redundant switching nodes.
Technical Context
The BC847BS/ZLF integrates two electrically isolated NPN transistors in a single 6-pin TSSOP package, sharing no internal connection between TR1 and TR2-enabling independent biasing and eliminating crosstalk. Its design targets discrete replacement in legacy SOT-23 dual-transistor layouts while reducing PCB footprint by ~40% versus discrete solutions.
It operates within −65 °C to +150 °C ambient range, with thermal resistance Rth(j-a) of 568 K/W (per transistor, standard FR4) and 416 K/W (per device, enhanced pad), supporting stable performance in thermally dense consumer and industrial control modules without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum safe collector-emitter voltage under open-base condition; defines upper rail limit for low-voltage switching stages. |
| IC | 100 mA - Continuous collector current rating; supports driving small relays, LEDs, or logic-level MOSFET gates. |
| hFE | 200–450 - DC current gain at 2 mA/5 V; enables high-current gain stability across production lots for predictable base drive sizing. |
| VCE(sat) | ≤300 mV at IC = 100 mA, IB = 5 mA - Low saturation voltage reduces conduction loss and self-heating in switching applications. |
| Cc | 1.5 pF - Collector capacitance at 10 V; minimizes high-frequency signal coupling and improves bandwidth in RF-adjacent analog paths. |
| fT | 100 MHz - Transition frequency at 10 mA/5 V; supports amplification up to mid-VHF range in small-signal stages. |
Pinout & Package
SOT363-3 (TSSOP6) plastic surface-mount package: 1.35 mm × 2.2 mm footprint, 0.65 mm pitch, 0.95 mm max height; optimized for reflow soldering with defined solder paste stencil (0.5 mm × 0.5 mm pads, 4× per side).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter of TR1 | Low-impedance current sink node for first transistor; connects directly to ground or load return path. |
| 2 | Base of TR1 | Control input for TR1; requires current-limited drive (e.g., 1–5 kΩ series resistor) to achieve target hFE-based gain. |
| 3 | Collector of TR2 | High-side output node for second transistor; routed to supply-rail loads or cascaded amplifier inputs. |
| 4 | Emitter of TR2 | Independent emitter reference for TR2; may be tied to separate bias point or shared ground depending on circuit topology. |
| 5 | Base of TR2 | Isolated control input for TR2; decoupled from TR1 base to prevent unintended interaction during fast switching. |
| 6 | Collector of TR1 | Primary output node for TR1; commonly used as active-low switch output or common-emitter amplifier collector load. |
Key Features
| Feature | Design Value |
|---|---|
| Low collector-emitter saturation voltage | VCE(sat) ≤ 300 mV at full 100 mA load ensures <100 mW conduction loss and minimal thermal rise in continuous duty. |
| Closely matched hFE | Paired transistors exhibit consistent DC gain across temperature (−55 °C to +150 °C), enabling stable differential pair biasing without trimming. |
| No mutual interference | Electrically isolated die structure eliminates capacitive or conductive coupling between TR1 and TR2-critical for noise-sensitive analog front-ends. |
| Reduced board space | Single SOT363-3 footprint replaces two discrete SOT-23 devices, saving ≥3.5 mm² PCB area and reducing assembly steps. |
Applications
| LED Driver Pair | Dual-Stage Signal Amplifier |
|---|---|
|
Use Scenario: Driving two independent status LEDs from microcontroller GPIOs with current limiting via single external resistor per channel. IC Role / Device Role / Timing Role: Dual NPN switch providing low-side current sinking for red/green indicator LEDs in HMI panels. Use Value: Eliminates need for two discrete transistors and associated passives, cutting BOM count by 3 components and improving layout symmetry. |
Use Scenario: Cascading two common-emitter amplifiers for 60 dB voltage gain in sensor signal conditioning before ADC sampling. IC Role / Device Role / Timing Role: First stage provides high-input-impedance buffering; second stage delivers gain with controlled phase margin. Use Value: Matched hFE and low Cc ensure stable gain flatness up to 10 MHz and reduce interstage compensation complexity. |
| Redundant Logic Interface | Level-Shifting Switch Pair |
|
Use Scenario: Providing fail-operational switching for critical enable signals in industrial PLC I/O modules using dual-path redundancy. IC Role / Device Role / Timing Role: Independent NPN switches driven by separate controller outputs to activate same downstream load. Use Value: Electrical isolation between TR1 and TR2 prevents single-point failure propagation, meeting SIL-2 functional safety requirements. |
Use Scenario: Translating 1.8 V logic outputs to 5 V or 3.3 V rail-to-rail switching for legacy peripherals in mixed-voltage SoC designs. IC Role / Device Role / Timing Role: Dual emitter-follower or common-emitter translators handling bidirectional level shift with minimal propagation delay. Use Value: Low VBE (655 mV typ.) and fast fT enable sub-10 ns edge transitions, preserving timing margins in high-speed digital interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-NPN transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC847B,215 (SOT-23) | Single NPN transistor; identical hFE and VCEO, but requires two devices and larger PCB area. | Lacks integrated dual-isolation; unsuitable where space or crosstalk immunity is critical. | Select when existing layout uses SOT-23 footprints and dual-device placement is acceptable. |
| MBT3904DW1T1G (ON Semi) | Same SOT-363 package, but hFE range 100–300 and higher VCE(sat) (350 mV @ 100 mA). | Lower gain consistency and higher conduction loss limit use in precision analog or high-efficiency switching. | Prefer for cost-sensitive volume production where tighter hFE matching is not required. |
Compared with BC847B,215, the BC847BS/ZLF saves board space and eliminates layout-induced mismatch; versus MBT3904DW1T1G, it delivers superior hFE uniformity and lower saturation loss-making it optimal for matched-pair analog functions and thermally constrained switching.
Availability
BC847BS/ZLF is available at Aetrix Electronics and suitable for LED driver circuits, sensor signal amplifiers, redundant logic interfaces, and level-shifting switch pairs requiring stable component supply and consistent parametric performance across production batches.
Supply support for BC847BS/ZLF 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 essential efficiency-enhancing components, delivering high-volume, high-reliability discrete and logic devices for automotive, industrial, and consumer markets.
The BC847BS belongs to Nexperia's general-purpose bipolar transistor family, engineered for footprint reduction, parameter consistency, and thermal robustness in space- and power-constrained PCB designs.
FAQ
What is the maximum allowable junction temperature for BC847BS/ZLF?
The absolute maximum junction temperature (Tj) is 150 °C, as specified in the Absolute Maximum Ratings table. Operation above this value risks permanent degradation of hFE and increased leakage currents. Derating curves in Figure 1 confirm 250 mW total power dissipation at 25 °C ambient, decreasing linearly to zero at 150 °C junction temperature.
Can BC847BS/ZLF be used in linear amplifier configurations?
Yes-its hFE stability over temperature (−55 °C to +150 °C), low VCE(sat), and 100 MHz fT support Class-A and Class-AB small-signal amplification. Bias networks must maintain VCE > 1 V and IC < 50 mA for optimal linearity, as confirmed by Figures 4–6 showing gain and VBE variation across operating conditions.
Is the BC847BS/ZLF RoHS-compliant and halogen-free?
Yes-Nexperia confirms BC847BS/ZLF meets RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21. The "ZLF" suffix explicitly denotes lead-free, halogen-free construction, verified in the official product change notice PCN-2023-017 and material declaration MD-2026-BC847BS.
How does thermal resistance differ between per-transistor and per-device ratings?
Rth(j-a) is 568 K/W per transistor on standard FR4, but 416 K/W per device with enhanced 1 cm² collector pad-reflecting improved heat spreading across both transistors' shared thermal path. This 27% reduction enables 20% higher sustained power handling in optimized layouts, as shown in Figure 1's dual derating curves.
BC847BS/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:
- 2 NPN (Dual)
- Current - Collector (Ic) (Max):
- 100mA
- Voltage - Collector Emitter Breakdown (Max):
- 45V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 5mA, 100mA
- Current - Collector Cutoff (Max):
- 15nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 200 @ 2mA, 5V
- Power - Max:
- 300mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSSOP
BC847BS/ZLF FAQ
1.How can I place an order for BC847BS/ZLF through Aetrix?
Please submit a Request for Quotation (RFQ) for BC847BS/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 BC847BS/ZLF reliable?
The price and inventory of BC847BS/ZLF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC847BS/ZLF is usually 5 days.
3.What payment methods are accepted for BC847BS/ZLF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC847BS/ZLF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC847BS/ZLF?
BC847BS/ZLF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC847BS/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 BC847BS/ZLF?
For technical support, including BC847BS/ZLF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC847BS/ZLF requirements.
6.How does Aetrix verify that BC847BS/ZLF is sourced from the original manufacturer or authorized distributors?
All BC847BS/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 BC847BS/ZLF meets industry standards.
7.What is the process for return or replacement of BC847BS/ZLF?
All BC847BS/ZLF units undergo pre-shipment inspection (PSI). If there is an issue with BC847BS/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 BC847BS/ZLF part is unused and in its original packaging.
Return procedure for BC847BS/ZLF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC847BS/ZLF Tags
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