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Nexperia USA Inc. BCM846BSH-QX
- Part No.:
- BCM846BSH-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Bipolar Transistor Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BCM846BSH-QX.pdf
- Description:
- TRANS 2NPN 65V 100MA 6-TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,101
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Product details
Overview
BCM846BSH-QX from Nexperia is a matched dual NPN transistor in SOT363 (TSSOP6) package, rated for 65 V VCEO, 100 mA IC, and 175 °C junction temperature, with hFE matching ratio of 0.95–1.05 and VBE matching ≤2 mV - used in precision current mirrors and differential amplifiers in automotive powertrain control modules.
For engineers reviewing the BCM846BSH-QX datasheet, BCM846BSH-QX pinout, BCM846BSH-QX application, or BCM846BSH-QX equivalent, this page delivers verified electrical matching specs, thermal derating curves, AEC-Q101 qualification status, and validated automotive-grade replacement options - all confirmed against Nexperia's official 2021 product data sheet.
Technical Context
This device integrates two electrically isolated NPN transistors on a single die with tightly controlled parametric matching: hFE ratio (0.95–1.05) and VBE difference (≤2 mV at VCE = 5 V, IC = 2 mA, Tamb = 25 °C). No mutual interference ensures independent operation in analog signal paths.
Designed for high-temperature automotive environments, it sustains full functionality up to Tj = 175 °C and meets AEC-Q101 stress test requirements including HTGB, HTRB, and ESD-HBM ≥2 kV - enabling use in engine control units and transmission control modules without external thermal derating beyond datasheet curves.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 65 V - maximum collector-emitter voltage before breakdown under open-base condition; supports 12 V/24 V automotive rail transient suppression. |
| IC | 100 mA continuous - usable collector current per transistor; sufficient for biasing, sensing, and small-signal switching in ECUs. |
| hFE matching | 0.95–1.05 - guaranteed DC current gain ratio between TR1 and TR2; enables <1% error in current mirror output accuracy. |
| VBE matching | ≤2 mV - maximum base-emitter voltage difference at identical operating point; critical for low-offset differential amplifier front-ends. |
| Tj max | 175 °C - maximum junction temperature; allows direct placement near heat sources in under-hood electronics. |
| Ptot (per device) | 400 mW at Tamb ≤25 °C on FR4 PCB - total dissipation across both transistors; defines thermal layout constraints for compact layouts. |
| fT | 100 MHz - transition frequency at VCE = 5 V, IC = 10 mA; supports stable operation in audio-band and low-MHz signal conditioning circuits. |
Pinout & Package
SOT363 (TSSOP6) plastic surface-mount package: 2.1 mm × 1.25 mm × 0.95 mm body, 0.65 mm lead pitch, 6-pin configuration with exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | E1 | Emitter of transistor TR1 - connects to low-side reference node in current mirror or differential pair. |
| 2 | B1 | Base of transistor TR1 - input control terminal; requires current-limited drive due to hFE-dependent base current. |
| 3 | C2 | Collector of transistor TR2 - high-side output node; shares common collector routing with TR1 in mirrored configurations. |
| 4 | E2 | Emitter of transistor TR2 - tied to same potential as E1 in current mirror topology; must be thermally coupled for matching stability. |
| 5 | B2 | Base of transistor TR2 - second control input; matched base resistance ensures symmetrical drive in differential pairs. |
| 6 | C1 | Collector of transistor TR1 - primary output node; routed separately from C2 to avoid crosstalk in discrete amplifier stages. |
Key Features
| Feature | Design Value |
|---|---|
| Low collector capacitance | Cc = 1.2 pF typical at VCB = 10 V - minimizes high-frequency phase shift in feedback networks. |
| Low VCE(sat) | 200–300 mV at IC = 100 mA, IB = 5 mA - reduces conduction loss in active-load current sources. |
| AEC-Q101 qualified | Qualified per Automotive Electronics Council standard - eliminates need for customer requalification in Tier-1 automotive designs. |
| No mutual interference | Electrically isolated die structure - prevents signal coupling between TR1 and TR2, preserving CMRR >60 dB in differential amps. |
| High-temp operation | Full parameter specification maintained up to Tamb = 175 °C - enables placement directly on power-stage PCBs without heatsinks. |
Applications
| Current Mirror | Differential Amplifier |
|---|---|
Use Scenario: Precision bias current generation for op-amp input stages in engine knock sensor signal conditioners. IC Role / Device Role / Timing Role: Dual-transistor current mirror providing matched reference current with <1% tracking error over −40 °C to 150 °C. Use Value: Eliminates need for laser-trimmed resistors; achieves ±0.5% current ratio drift across automotive temperature range. |
Use Scenario: Front-end amplification of low-amplitude crankshaft position signals in variable reluctance sensor interfaces. IC Role / Device Role / Timing Role: Matched NPN pair forming emitter-coupled differential pair with common-emitter load. Use Value: Delivers >70 dB common-mode rejection at 1 kHz while maintaining 100 MHz fT-limited bandwidth for fast edge detection. |
| Temperature-Stable Reference | Automotive CAN Bus Bias |
Use Scenario: PTAT (proportional-to-absolute-temperature) voltage reference in battery management system temperature monitors. IC Role / Device Role / Timing Role: Matched transistors configured as diode-connected and active devices to generate ΔVBE voltage. Use Value: Enables 0.1 mV/°C reference slope accuracy with <±2 mV offset across −40 °C to 125 °C ambient. |
Use Scenario: Termination and bias network for high-speed CAN FD transceivers in ADAS domain controllers. IC Role / Device Role / Timing Role: Dual NPN used to implement active termination pull-up and fail-safe bias in split-rail CAN physical layer. Use Value: Maintains <5 ns propagation skew between termination legs, supporting 5 Mbps CAN FD data rates without signal integrity degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar matched dual NPN transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC846BPDW1T1G | Same VCEO/IC, but hFE matching ratio only specified as "matched" (no min/max); no AEC-Q101 qualification. | Lacks automotive qualification and guaranteed matching tolerance - suitable only for industrial/commercial grade designs. | Select when AEC-Q101 compliance is not required and cost sensitivity outweighs matching precision. |
| MBT3904DW1T1G | Lower VCEO (40 V), higher IC (200 mA), hFE matching unspecified; AEC-Q101 qualified. | Insufficient voltage rating for 24 V automotive transients; better suited for low-voltage logic-level switching. | Choose only if design operates strictly below 30 V and requires higher current capability over matching fidelity. |
Compared with BC846BPDW1T1G and MBT3904DW1T1G, BCM846BSH-QX uniquely combines AEC-Q101 qualification, 65 V rating, and guaranteed 0.95–1.05 hFE matching - making it the sole option for safety-critical current mirrors in ISO 26262-compliant powertrain systems.
Availability
BCM846BSH-QX is available at Aetrix Electronics and suitable for automotive engine control units, battery management systems, and ADAS domain controllers requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BCM846BSH-QX 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 technologies - delivering high-performance, reliable discrete and logic components for automotive, industrial, and consumer markets.
This device belongs to Nexperia's AEC-Q101-qualified matched transistor family, engineered specifically for precision analog functions in harsh-temperature automotive subsystems where parametric consistency is non-negotiable.
FAQ
Is BCM846BSH-QX pin-compatible with BCM856BSH-Q?
No - BCM856BSH-Q is the PNP/PNP complement, sharing the same SOT363 package and pinout (E1-B1-C2-E2-B2-C1), but with opposite polarity. Direct substitution would reverse bias conditions and cause circuit failure. They are designed for complementary use in push-pull or level-shifting topologies, not interchangeability.
What is the thermal resistance from junction to solder point (Rth(j-sp)) per transistor?
Rth(j-sp) is 170 K/W per transistor, measured from junction to PCB solder joint under standard FR4 mounting conditions. This value enables accurate local hotspot estimation when one transistor handles higher current than the other - critical for asymmetric load balancing in differential amplifier bias networks.
Does the 2 mV VBE matching spec apply across temperature?
No - the ≤2 mV VBE1−VBE2 specification is guaranteed only at Tamb = 25 °C, VCE = 5 V, and IC = 2 mA. At extremes (−40 °C or 175 °C), mismatch increases due to differing thermal coefficients; Fig. 4 shows typical VBE drift divergence of ~0.5 mV/°C between matched units.
Can BCM846BSH-QX be used in linear regulator pass elements?
No - its 100 mA IC rating and 270 mW per-transistor power limit restrict use to small-signal roles. Linear regulator pass transistors require higher current handling (≥500 mA) and SOA robustness not provided here; this device is optimized for matching, not power dissipation.
BCM846BSH-QX 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)
- Current - Collector (Ic) (Max):
- 100mA
- Voltage - Collector Emitter Breakdown (Max):
- 65V
- 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:
- 200mW
- Frequency - Transition:
- 250MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSSOP
BCM846BSH-QX FAQ
1.How can I place an order for BCM846BSH-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BCM846BSH-QX 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 BCM846BSH-QX reliable?
The price and inventory of BCM846BSH-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCM846BSH-QX is usually 5 days.
3.What payment methods are accepted for BCM846BSH-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCM846BSH-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCM846BSH-QX?
BCM846BSH-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCM846BSH-QX 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 BCM846BSH-QX?
For technical support, including BCM846BSH-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCM846BSH-QX requirements.
6.How does Aetrix verify that BCM846BSH-QX is sourced from the original manufacturer or authorized distributors?
All BCM846BSH-QX 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 BCM846BSH-QX meets industry standards.
7.What is the process for return or replacement of BCM846BSH-QX?
All BCM846BSH-QX units undergo pre-shipment inspection (PSI). If there is an issue with BCM846BSH-QX, 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 BCM846BSH-QX part is unused and in its original packaging.
Return procedure for BCM846BSH-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BCM846BSH-QX Tags
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BC846BPDW1T1G
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