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Nexperia USA Inc. BCM857BSH-QF
- Part No.:
- BCM857BSH-QF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Bipolar Transistor Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BCM857BSH-QF.pdf
- Description:
- TRANS 2PNP 45V 100MA 6-TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,209
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Product details
Overview
BCM857BSH-QF from Nexperia is a PNP/PNP matched double transistor in SOT363 (SC-88) package, rated for −45 V VCEO, −100 mA IC, and 200–450 hFE per transistor. It delivers precise current gain matching (0.95–1.05) and base-emitter voltage matching (≤2 mV), enabling high-accuracy current mirroring and differential amplification in automotive signal conditioning circuits.
For engineers reviewing the BCM857BSH-QF datasheet, BCM857BSH-QF pinout, BCM857BSH-QF application, or BCM857BSH-QF equivalent, this device supports AEC-Q101-compliant designs requiring matched PNP pairs with low VCE(sat) (−200 mV typ. at −100 mA), low Cc (1.8 pF), and operation up to 175 °C junction temperature.
Technical Context
This dual PNP transistor integrates two electrically isolated, thermally coupled transistors in a single TSSOP6 package. Each transistor exhibits identical DC characteristics-hFE matching within ±5 % and VBE matching ≤2 mV-ensuring stable performance in feedback and balancing topologies without mutual interference.
Its design targets high-reliability analog functions where thermal tracking and parameter symmetry are critical: VCE(sat) remains stable across −40 °C to +175 °C, and Rth(j-sp) is 170 K/W per transistor, supporting compact automotive PCB layouts with minimal thermal derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −45 V - Maximum safe collector-emitter voltage under open-base condition; defines breakdown margin in high-side switching or mirror bias networks. |
| IC | −100 mA - Continuous collector current rating; supports medium-current analog stages without forced cooling. |
| hFE | 200–450 @ VCE = −5 V, IC = −2 mA - High DC gain enables low-base-drive circuits in precision current sources. |
| hFE1/hFE2 | 0.95–1.05 - Tight current gain matching ensures <±5 % error in current mirror ratio over temperature and process variation. |
| VBE1−VBE2 | ≤2 mV @ VCE = −5 V, IC = −2 mA - Sub-millivolt base-emitter voltage mismatch minimizes offset in differential pair inputs. |
| Cc | 1.8 pF @ VCB = −10 V - Low collector capacitance preserves bandwidth in high-frequency amplifier and oscillator bias networks. |
| Tj(max) | 175 °C - Junction temperature rating qualified per AEC-Q101; enables under-hood deployment without thermal throttling. |
Pinout & Package
Package: SOT363 (TSSOP6), 2.1 mm × 1.25 mm × 0.95 mm body, 0.65 mm lead pitch, surface-mount plastic package qualified for automotive reflow and wave soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | E1 | Emitter of Transistor 1 - Connected to reference node or current sink in mirror configuration. |
| 2 | B1 | Base of Transistor 1 - Input control terminal for biasing TR1; shares thermal environment with TR2 for tracking. |
| 3 | C2 | Collector of Transistor 2 - Output node for matched current sourcing in differential pair or active load. |
| 4 | E2 | Emitter of Transistor 2 - Common emitter connection point enabling shared bias in complementary configurations. |
| 5 | B2 | Base of Transistor 2 - Independent control input; matched to B1 for symmetrical drive in balanced circuits. |
| 6 | C1 | Collector of Transistor 1 - Primary output for current mirror reference leg or first-stage amplification. |
Key Features
| Feature | Design Value |
|---|---|
| Current gain matching | hFE1/hFE2 = 0.95–1.05 - Enables <±5 % current ratio accuracy in mirror-based biasing without trimming. |
| Base-emitter voltage matching | VBE1−VBE2 ≤ 2 mV - Reduces input offset by >50 % versus discrete unmatched PNP pairs in op-amp input stages. |
| No mutual interference | Electrically isolated collectors/emitters - Prevents crosstalk between channels in mixed-signal sensor front-ends. |
| AEC-Q101 qualification | Qualified for automotive applications - Meets stress test requirements for temperature cycling, HTRB, and ESD robustness. |
| High-temperature operation | Tamb = −55 °C to +175 °C - Supports placement near powertrain ECUs without external heatsinking. |
Applications
| Current Mirror | Differential Amplifier |
|---|---|
Use Scenario: Precision current source for sensor excitation in automotive pressure or temperature modules. IC Role / Device Role / Timing Role: Dual PNP pair provides matched reference and output legs with thermal tracking to maintain constant current over temperature. Use Value: Achieves <±1 % current ratio drift from −40 °C to +150 °C due to integrated die matching and low VBE mismatch. |
Use Scenario: Input stage of engine control unit (ECU) analog front-end for throttle position signal conditioning. IC Role / Device Role / Timing Role: Matched PNP pair forms high-common-mode-rejection differential pair rejecting battery ripple and ignition noise. Use Value: Delivers >70 dB CMRR at 1 kHz due to sub-2 mV VBE mismatch and identical hFE across devices. |
| Active Load | Level Shifter |
Use Scenario: Active load in rail-to-rail operational amplifier output stage for electric power steering motor drivers. IC Role / Device Role / Timing Role: TR2 acts as programmable current sink load for TR1-based gain stage, improving linearity and slew rate. Use Value: Enables 12 V supply operation with <100 mV headroom via low −200 mV VCE(sat) at full load current. |
Use Scenario: Logic-level translation between 3.3 V microcontroller I/O and 5 V analog subsystem in ADAS camera modules. IC Role / Device Role / Timing Role: One transistor operates as saturated switch; second provides matched base drive for fast, low-glitch transitions. Use Value: Supports <100 ns propagation delay with matched turn-on/turn-off timing due to identical hFE and Cc. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar matched PNP transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BCM857BS,115 | Same silicon, non-automotive grade; no AEC-Q101 qualification; Tj(max) = 150 °C. | Limited to industrial or consumer use; not approved for under-hood automotive deployment. | Select only if AEC-Q101 compliance is unnecessary and cost sensitivity outweighs reliability requirements. |
| BC847BS,115 | NPN/NPN matched pair; complementary topology; VCEO = 45 V, IC = 100 mA, same package. | Suitable for NPN-biased circuits (e.g., common-emitter amplifiers), not direct replacement in PNP mirror topologies. | Use when circuit architecture requires NPN polarity; verify bias network compatibility before substitution. |
Compared with BCM857BSH-QF, BCM857BS,115 lacks automotive qualification and thermal margin, while BC847BS,115 offers opposite polarity-neither serves as drop-in replacement but provides functional alternatives for non-PNP or non-automotive contexts.
Availability
BCM857BSH-QF is available at Aetrix Electronics and suitable for automotive sensor signal conditioning, engine control unit (ECU) analog front-ends, and ADAS camera module level-shifting applications requiring stable component supply and AEC-Q101 compliance.
Supply support for BCM857BSH-QF 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 specializing in high-performance, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging.
This device belongs to Nexperia's AEC-Q101-qualified matched transistor family, engineered specifically for precision analog functions in harsh automotive environments where parameter matching and thermal stability are critical.
FAQ
What is the maximum continuous collector current per transistor in BCM857BSH-QF?
The maximum continuous collector current per transistor is −100 mA at Tamb ≤ 25 °C, derated linearly above that ambient temperature per the 375 K/W per-device Rth(j-a). At 100 °C ambient, usable IC drops to approximately −65 mA to maintain Tj ≤ 175 °C.
Does BCM857BSH-QF support reflow soldering, and what profile is recommended?
Yes, BCM857BSH-QF is qualified for lead-free reflow soldering per J-STD-020. The recommended peak temperature is 260 °C for ≤30 seconds, with ramp-up rate ≤3 °C/s and ramp-down rate ≤6 °C/s. Figure 12 in the datasheet specifies the exact solder land pattern for optimal thermal transfer.
How does the hFE matching tolerance affect current mirror accuracy?
With hFE1/hFE2 = 0.95–1.05, the current mirror ratio error is bounded to ±5 % under matched VCE and temperature conditions. This eliminates need for external trimming in most automotive sensor bias circuits, reducing BOM count and calibration steps.
Can BCM857BSH-QF replace discrete PNP transistors in existing designs?
Yes, it serves as a drop-in replacement for standard double-transistor packages like SOT363-mounted PNP pairs, provided pin 1 (E1) to pin 6 (C1) layout matches. Its matched characteristics improve performance over discrete solutions, but layout must preserve thermal coupling between transistors for optimal tracking.
BCM857BSH-QF 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 PNP (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:
- 270mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSSOP
BCM857BSH-QF FAQ
1.How can I place an order for BCM857BSH-QF through Aetrix?
Please submit a Request for Quotation (RFQ) for BCM857BSH-QF 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 BCM857BSH-QF reliable?
The price and inventory of BCM857BSH-QF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCM857BSH-QF is usually 5 days.
3.What payment methods are accepted for BCM857BSH-QF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCM857BSH-QF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCM857BSH-QF?
BCM857BSH-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCM857BSH-QF 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 BCM857BSH-QF?
For technical support, including BCM857BSH-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCM857BSH-QF requirements.
6.How does Aetrix verify that BCM857BSH-QF is sourced from the original manufacturer or authorized distributors?
All BCM857BSH-QF 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 BCM857BSH-QF meets industry standards.
7.What is the process for return or replacement of BCM857BSH-QF?
All BCM857BSH-QF units undergo pre-shipment inspection (PSI). If there is an issue with BCM857BSH-QF, 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 BCM857BSH-QF part is unused and in its original packaging.
Return procedure for BCM857BSH-QF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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