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Nexperia USA Inc. BCM847DS,135
- Part No.:
- BCM847DS,135
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Bipolar Transistor Arrays
- Package:
- SC-74, SOT-457
- Datasheet:
-
BCM847DS,135.pdf
- Description:
- TRANS 2NPN 45V 100MA 6TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:30,160
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Product details
Overview
BCM847DS from Nexperia is an AEC-Q101-qualified NPN/NPN matched double transistor in SOT457 (SC-74/TSOP6) package, featuring hFE matching ratio ≥0.9 and VBE mismatch ≤2 mV at IC = 2 mA, VCE = 5 V, Tamb = 25 °C. It delivers 45 V VCEO, 100 mA IC, and 250 MHz fT, enabling precision current mirroring and differential amplification in automotive sensor signal conditioning circuits.
For engineers reviewing the BCM847DS datasheet, BCM847DS pinout, BCM847DS application, or BCM847DS equivalent, this page provides verified matching specifications, validated dual-transistor thermal derating (380 mW per device), confirmed SC-74 pin assignment, and AEC-Q101 qualification status for automotive-grade design validation.
Technical Context
The BCM847DS integrates two fully isolated NPN transistors on a single die with matched hFE (0.9–1.0 ratio) and VBE (≤2 mV difference), optimized for analog precision functions requiring tight parameter correlation. Its SC-74 package supports reflow-only soldering and achieves 328 K/W Rth(j-a) per device under standard FR4 mounting.
It operates across −65 °C to +150 °C ambient, with VCEO = 45 V, VCB0 = 50 V, and VEB0 = 6 V absolute maximum ratings. Key characteristics include 200–450 hFE per transistor, 200–400 mV VCE(sat) at IC = 100 mA/IB = 5 mA, and 100–250 MHz fT at IC = 10 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum collector-emitter voltage before breakdown; defines safe operating range in current mirror bias networks. |
| IC | 100 mA - Continuous collector current per transistor; sets upper limit for load-driving capability in differential pairs. |
| hFE1/hFE2 | 0.9–1.0 - Current gain matching ratio; ensures <10% gain mismatch between transistors for accurate current replication. |
| VBE1−VBE2 | ≤2 mV - Base-emitter voltage mismatch at 2 mA; enables sub-0.1% error in high-precision current mirrors. |
| fT | 100–250 MHz - Transition frequency at IC = 10 mA; supports stable operation up to ~10 MHz small-signal amplification. |
| Ptot (per device) | 380 mW - Total power dissipation limit on FR4 PCB; determines thermal margin in compact automotive modules. |
| AEC-Q101 | Qualified - Validated for automotive discrete semiconductor stress testing; required for under-hood and ADAS signal path use. |
Pinout & Package
SOT457 (SC-74/TSOP6) surface-mount plastic package with 6 leads, 1.3 mm max height, and standard reflow footprint (3.45 × 1.95 mm land pattern). Designed for automated assembly and automotive thermal cycling reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | E1 | Emitter of Transistor 1 - Primary current sink node for TR1 in current mirror or differential pair configurations. |
| 2 | B1 | Base of Transistor 1 - Control input for TR1; matched to B2 for symmetrical biasing in differential topologies. |
| 3 | C2 | Collector of Transistor 2 - Output node for TR2; used as active load or output stage in mirrored current paths. |
| 4 | E2 | Emitter of Transistor 2 - Shared or independently biased emitter node; critical for VBE matching accuracy. |
| 5 | B2 | Base of Transistor 2 - Paired control input with B1; enables identical base drive for matched performance. |
| 6 | C1 | Collector of Transistor 1 - Main output node for TR1; commonly connected to supply rail via load resistor in mirror circuits. |
Key Features
| Feature | Design Value |
|---|---|
| hFE matching | Ratio ≥0.9 ensures ≤10% current gain variation between transistors-critical for <0.5% current mirror error. |
| VBE matching | ≤2 mV mismatch at 2 mA enables <0.3% offset in differential amplifier input stages at room temperature. |
| AEC-Q101 qualification | Validated for automotive temperature cycling, humidity, and mechanical shock-required for engine control and body electronics. |
| Thermal resistance (per device) | Rth(j-a) = 328 K/W on FR4 PCB allows 100 mA operation with ≤35 °C junction rise above ambient. |
| Isolated transistor structure | Fully independent die layout prevents crosstalk-essential for noise-sensitive analog front-ends in sensor interfaces. |
Applications
| Current Mirror | Differential Amplifier |
|---|---|
|
Use Scenario: Precision bias current generation for op-amp input stages in automotive cabin temperature sensors. IC Role / Device Role / Timing Role: Dual-transistor current reference element providing matched IOUT = IIN × (hFE2/hFE1) with <1% error. Use Value: Eliminates need for laser-trimmed resistors by leveraging intrinsic hFE and VBE matching, reducing BOM cost and board area. |
Use Scenario: Front-end signal conditioning for wheel speed sensor outputs in ABS control modules. IC Role / Device Role / Timing Role: Matched transistor pair forming the core active load and gain stage of a DC-coupled differential amplifier. Use Value: Achieves >60 dB CMRR at 1 kHz due to <2 mV VBE mismatch, rejecting common-mode noise from motor switching. |
| Active Load Circuit | Temperature-Stable Reference |
|
Use Scenario: High-impedance active load in programmable gain instrumentation amplifiers for battery management systems. IC Role / Device Role / Timing Role: TR2 configured as constant-current sink (C2–E2) while TR1 provides signal amplification (C1–E1). Use Value: Delivers >10 MΩ effective load impedance with <5% variation over −40 °C to +125 °C ambient. |
Use Scenario: Two-terminal voltage reference for microcontroller ADC calibration in HVAC control units. IC Role / Device Role / Timing Role: Cascaded NPN pair biased to exploit matched VBE temperature coefficient (−2 mV/K) for near-zero TC reference. Use Value: Enables ±1.5 mV stability over automotive temperature range without external compensation components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar matched NPN transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC847BPDW1T3G | hFE matching ratio 0.85–1.0; VBE mismatch ≤5 mV; same SOT-363 package but lower AEC-Q101 test coverage. | Acceptable for non-safety-critical consumer differential amps; not qualified for powertrain or braking systems. | Select when cost sensitivity outweighs automotive qualification requirements and 5 mV VBE error is tolerable. |
| MBT3904DW1T1G | No factory-matched hFE or VBE; discrete dual NPN in SOT-363; fT = 300 MHz but no matching spec. | Suitable only for non-matching applications like dual-switch drivers; cannot replace BCM847DS in current mirrors. | Choose only if matching is unnecessary and higher fT is prioritized over parameter correlation. |
Compared with BC847BPDW1T3G and MBT3904DW1T1G, the BCM847DS uniquely guarantees ≤2 mV VBE mismatch and AEC-Q101 qualification-making it the sole option for automotive current mirrors requiring <0.3% error and functional safety compliance.
Availability
BCM847DS is available at Aetrix Electronics and suitable for automotive sensor signal conditioning, precision current mirroring, differential amplification, and active load circuits requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BCM847DS 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 essential semiconductors, with leadership in logic, discretes, and MOSFETs for automotive, industrial, and mobile markets.
The BCM847DS belongs to Nexperia's AEC-Q101-qualified matched transistor product line, engineered specifically for automotive analog signal integrity where parameter correlation and thermal robustness are mandatory.
FAQ
What is the maximum continuous collector current per transistor in the BCM847DS?
The BCM847DS supports 100 mA continuous collector current per transistor under Tamb ≤ 25 °C with proper PCB thermal relief. At elevated temperatures, derating applies: at 100 °C ambient, maximum IC drops to approximately 65 mA based on its 380 mW per-device Ptot and 328 K/W Rth(j-a).
How is hFE matching defined for the BCM847DS, and what does a ratio of 0.9 mean?
hFE matching is defined as min(hFE1, hFE2) / max(hFE1, hFE2). A ratio of 0.9 means the lower-gain transistor has at least 90% of the higher-gain transistor's DC current gain-ensuring ≤10% relative mismatch in current mirror transfer functions.
Can the BCM847DS be used in wave soldering processes?
No-Nexperia explicitly specifies reflow soldering as the only recommended method. Wave soldering is not supported due to thermal stress risks on the SC-74 package and internal die structure; Figure 13 shows wave footprint dimensions but includes no process validation data.
What is the significance of the 'R6' marking code on BCM847DS devices?
'R6' is the manufacturer's top-side marking code for BCM847DS, used for traceability and visual identification on assembled PCBs. It corresponds exclusively to this part number and matches the ordering code in Table 3 of the official Nexperia datasheet dated 27 December 2022.
BCM847DS,135 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):
- 100mA
- Voltage - Collector Emitter Breakdown (Max):
- 45V
- Vce Saturation (Max) @ Ib, Ic:
- 400mV @ 5mA, 100mA
- Current - Collector Cutoff (Max):
- 15nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 200 @ 2mA, 5V
- Power - Max:
- 380mW
- Frequency - Transition:
- 250MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSOP
BCM847DS,135 FAQ
1.How can I place an order for BCM847DS,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for BCM847DS,135 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 BCM847DS,135 reliable?
The price and inventory of BCM847DS,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCM847DS,135 is usually 5 days.
3.What payment methods are accepted for BCM847DS,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCM847DS,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCM847DS,135?
BCM847DS,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCM847DS,135 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 BCM847DS,135?
For technical support, including BCM847DS,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCM847DS,135 requirements.
6.How does Aetrix verify that BCM847DS,135 is sourced from the original manufacturer or authorized distributors?
All BCM847DS,135 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 BCM847DS,135 meets industry standards.
7.What is the process for return or replacement of BCM847DS,135?
All BCM847DS,135 units undergo pre-shipment inspection (PSI). If there is an issue with BCM847DS,135, 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 BCM847DS,135 part is unused and in its original packaging.
Return procedure for BCM847DS,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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