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Nexperia USA Inc. BCM847BS,115
- Part No.:
- BCM847BS,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Bipolar Transistor Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BCM847BS,115.pdf
- Description:
- TRANS 2NPN 45V 100MA 6-TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:13,025
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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 - used in precision current mirrors and differential amplifiers for automotive sensor signal conditioning.
For engineers reviewing the BCM847BS datasheet, BCM847BS pinout, BCM847BS application, or BCM847BS equivalent, this page delivers verified pin functions, thermal resistance (416 K/W device-level), matching specifications, and application-specific design meaning - critical for analog front-end stability and production-grade automotive qualification.
Technical Context
This dual NPN transistor integrates two fully isolated silicon die in a single TSSOP6 footprint, enabling precise analog functions without cross-coupling. Its matching performance is specified at VCE = 5 V, IC = 2 mA, Tamb = 25 °C - with hFE1/hFE2 ratio defined as min(hFE₁,hFE₂)/max(hFE₁,hFE₂) and VBE1−VBE2 as absolute difference.
The device supports reflow-only soldering on FR4 PCBs and operates across −65 °C to +150 °C ambient, with junction temperature limited to 150 °C. Thermal resistance from junction-to-ambient is 416 K/W for the full device - lower than per-transistor rating due to shared thermal path in the monolithic package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - maximum safe collector-emitter voltage per transistor before breakdown; sets upper rail limit in current mirror bias networks |
| IC | 100 mA - continuous collector current per transistor; defines linear operating range for small-signal amplification |
| hFE Matching | ≥0.9 - ratio of smaller/larger DC current gain; ensures <11% gain mismatch between transistors in differential pairs |
| VBE Matching | ≤2 mV - absolute base-emitter voltage difference; enables sub-0.1% current error in precision current mirrors |
| Ptot (device) | 300 mW - total power dissipation at Tamb ≤25 °C; determines thermal derating margin in compact automotive modules |
| fT | 100–250 MHz - transition frequency at IC = 10 mA; supports stable operation up to ~50 MHz in high-speed differential receivers |
| AEC-Q101 | Qualified - certified for automotive use per stress-test standard; eliminates need for additional qualification in Tier-1 designs |
Pinout & Package
SOT363-3 (TSSOP6) plastic surface-mounted package: 1.3 mm × 2.2 mm × 0.95 mm body, 0.65 mm lead pitch, 6-pin symmetrical layout with pin 1 index marker.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | E1 | Emitter of Transistor 1 - connects to low-side reference node in current mirror or emitter degeneration resistor |
| 2 | B1 | Base of Transistor 1 - input node for bias current or differential input in amplifier configurations |
| 3 | C2 | Collector of Transistor 2 - output node for mirrored current or active load in differential pair |
| 4 | E2 | Emitter of Transistor 2 - tied to E1 in current mirror; independently biased in differential amplifier |
| 5 | B2 | Base of Transistor 2 - second differential input or feedback node in matched-pair topologies |
| 6 | C1 | Collector of Transistor 1 - primary output node carrying reference current or amplified signal |
Key Features
| Feature | Design Value |
|---|---|
| Current gain matching | hFE1/hFE2 ≥ 0.9 - enables <±5% current error in 1:1 mirror configurations without trimming |
| Base-emitter voltage matching | VBE1−VBE2 ≤ 2 mV - reduces offset drift to <1 µV/°C in thermally coupled layouts |
| AEC-Q101 qualification | Stress-tested for automotive reliability - meets HTOL, TC, HAST, and ESD requirements without requalification |
| Thermal resistance (device) | Rth(j-a) = 416 K/W - allows 300 mW dissipation at 25 °C ambient; enables compact placement near MCU ADC references |
| Matched topology | Fully isolated internal transistors - prevents crosstalk-induced distortion in high-PSRR sensor interfaces |
Applications
| Automotive Current Mirror | Instrumentation Differential Amplifier |
|---|---|
Use Scenario: Biasing Hall-effect sensor ICs in EPS (Electric Power Steering) control modules where supply rails vary from 5 V to 18 V. IC Role / Device Role / Timing Role: Dual NPN matched pair acts as precision current source to set sensor excitation current independent of rail fluctuations. Use Value: ≤2 mV VBE mismatch ensures <0.04% current error over temperature, maintaining sensor linearity within ±0.1% FS across −40 °C to +125 °C. |
Use Scenario: Front-end amplification of bridge-based pressure sensors in brake-by-wire systems. IC Role / Device Role / Timing Role: Matched NPN pair forms active load and input stage of discrete differential amplifier with common-mode rejection >80 dB. Use Value: hFE matching ≥0.9 and thermal coupling in SOT363-3 reduce gain mismatch-induced CMRR degradation by 12 dB versus discrete transistors. |
| Industrial Temperature Sensor Interface | Medical Patient Monitor Signal Conditioning |
Use Scenario: Linearizing RTD (Pt100) measurements in HVAC controllers using constant-current excitation. IC Role / Device Role / Timing Role: BCM847BS implements matched current source and reference leg in ratiometric Wheatstone bridge configuration. Use Value: 45 V VCEO headroom accommodates 24 V industrial supplies; 300 mW device Ptot supports sustained 10 mA excitation without thermal runaway. |
Use Scenario: Low-noise ECG front-end preamplifier requiring ultra-low input offset and drift. IC Role / Device Role / Timing Role: Dual NPN pair configured as matched-input differential pair with emitter degeneration for noise filtering. Use Value: NF = 3.3 dB at 1 kHz and fT ≥ 100 MHz enable clean amplification of 0.5–150 Hz biopotential signals with <10 nV/√Hz input noise. |
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 | No matching specification - hFE and VBE values not guaranteed between devices; no AEC-Q101 qualification | Suitable only for non-automotive consumer circuits where matching tolerance >10% is acceptable | Select only if cost sensitivity outweighs matching requirement and automotive compliance is unnecessary |
| BCM857BS | PNP/PNP complement - identical matching specs but opposite polarity; VCEO = 45 V, hFE matching ≥0.9, VEB matching ≤2 mV | Required when designing complementary current mirrors or Class AB output stages needing matched PNP legs | Choose when building fully complementary analog blocks - not a drop-in replacement for NPN-only topologies |
Compared with BC847BS, BCM847BS adds guaranteed matching and AEC-Q101 qualification at minimal footprint cost; versus BCM857BS, it provides NPN polarity essential for high-side current sensing and NPN-input amplifier stages - making it irreplaceable in asymmetric matched-pair designs.
Availability
BCM847BS is available at Aetrix Electronics and suitable for automotive sensor modules, industrial process controllers, medical diagnostic equipment, and precision instrumentation requiring stable component supply with long-term lifecycle assurance.
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 logic, discrete, and MOSFET solutions - headquartered in Nijmegen, Netherlands, with manufacturing in Asia and Europe.
BCM847BS belongs to Nexperia's AEC-Q101-qualified matched transistor product line, designed specifically for automotive and industrial analog signal chains requiring precision matching without laser trimming or external calibration.
FAQ
Is BCM847BS pin-compatible with BC847BS?
No - BCM847BS uses SOT363-3 (6-pin TSSOP) with isolated dual-NPN pinout (E1-B1-C2-E2-B2-C1), while BC847BS is typically supplied in SOT23-6 or SOT363 with non-matching pin assignments. Physical fit and circuit function differ; direct substitution requires PCB redesign.
What is the maximum allowable peak current per transistor?
The peak collector current is 200 mA for tp ≤ 1 ms under single-pulse conditions, as defined in IEC 60134 limiting values. This supports short-duration overload handling in fault-detection circuits but must be derated for repetitive pulses per thermal limits.
Does BCM847BS support wave soldering?
No - the datasheet explicitly states reflow soldering is the only recommended method. Wave soldering is not qualified due to thermal stress risks on the thin TSSOP6 leads and internal die attach; use only reflow profiles compliant with J-STD-020.
How is hFE matching measured and guaranteed?
hFE matching is measured per device at VCE = 5 V, IC = 2 mA, Tamb = 25 °C, with ratio calculated as min(hFE₁,hFE₂)/max(hFE₁,hFE₂). The ≥0.9 guarantee is 100% tested during final electrical test - not binned or sampled - ensuring every unit meets spec.
BCM847BS,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- 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:
- 300mW
- Frequency - Transition:
- 250MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSSOP
BCM847BS,115 FAQ
1.How can I place an order for BCM847BS,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BCM847BS,115 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,115 reliable?
The price and inventory of BCM847BS,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCM847BS,115 is usually 5 days.
3.What payment methods are accepted for BCM847BS,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCM847BS,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCM847BS,115?
BCM847BS,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCM847BS,115 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,115?
For technical support, including BCM847BS,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCM847BS,115 requirements.
6.How does Aetrix verify that BCM847BS,115 is sourced from the original manufacturer or authorized distributors?
All BCM847BS,115 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,115 meets industry standards.
7.What is the process for return or replacement of BCM847BS,115?
All BCM847BS,115 units undergo pre-shipment inspection (PSI). If there is an issue with BCM847BS,115, 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,115 part is unused and in its original packaging.
Return procedure for BCM847BS,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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