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NXP Semiconductors BC847T,115
- Part No.:
- BC847T,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Bipolar Transistors
- Package:
- SC-75, SOT-416
- Datasheet:
-
BC847T,115.pdf
- Description:
- TRANS NPN 45V 0.1A SC-75
- Quantity:
- Payment:
- Shipping:
Inventory:86,205
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Product details
Overview
BC847T,115 from NXP Semiconductors is an NPN general-purpose transistor in SOT416 (SC-75) surface-mount plastic package, rated for 45 V VCEO, 100 mA IC, and DC current gain (hFE) of 110–800 depending on group. It serves as a compact, low-power switching and amplification device in space-constrained consumer and industrial PCBs.
For engineers reviewing the BC847T,115 datasheet, BC847T,115 pinout, BC847T,115 application, or BC847T,115 equivalent, key selection considerations include its SC-75 footprint compatibility, thermal resistance of 833 K/W, collector-emitter saturation voltage ≤400 mV at 100 mA/5 mA drive, and hFE group identification via marking code "1N".
Technical Context
The BC847T,115 operates as a discrete bipolar junction transistor with fixed NPN polarity, requiring external base current control to regulate collector current flow. Its operation adheres to standard BJT forward-active and saturation region behavior under VCE ≤45 V and IC ≤100 mA conditions.
It exhibits typical transition frequency (fT) of 100 MHz at VCE = 5 V, IC = 10 mA, and collector capacitance (Cc) ≤1.5 pF at VCB = 10 V - confirming suitability for low-to-moderate frequency signal switching and analog amplification up to several tens of MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum allowable collector-emitter voltage before breakdown; defines safe operating voltage headroom in low-voltage logic-level switching. |
| IC | 100 mA - Continuous collector current rating; sets upper limit for load-driving capability in relay drivers or LED interfaces. |
| hFE | 110–800 - DC current gain range across A/B/C groups; determines required base drive current for target collector current (e.g., ~5 mA base for 100 mA collector with hFE = 200). |
| VCE(sat) | ≤400 mV at IC = 100 mA, IB = 5 mA - Low saturation voltage minimizes power loss and heating in switching applications. |
| Ptot | 150 mW - Total power dissipation at Tamb ≤25 °C; constrains usable current/voltage combinations in still-air environments. |
| Rth(j-a) | 833 K/W - Junction-to-ambient thermal resistance in free air; indicates significant self-heating at full rated current without heatsinking. |
| fT | 100 MHz - Transition frequency; supports small-signal amplification and switching up to ~10–20 MHz with acceptable gain margin. |
Pinout & Package
SOT416 (SC-75) is a 3-lead ultra-small surface-mount plastic package measuring 1.75 mm × 0.9 mm × 0.45 mm, optimized for high-density PCB layouts and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Current-controlled input terminal; requires series resistor to limit IB and ensure proper biasing per hFE and load requirements. |
| 2 | Emiter | Common reference node for NPN configuration; connected to ground or low-side return path in most switching topologies. |
| 3 | Collector | Output current terminal; sinks load current when transistor is saturated; must be routed with adequate copper area for thermal management. |
Key Features
| Feature | Design Value |
|---|---|
| Three hFE gain groups (A/B/C) | Enables precise current gain matching in production batches - e.g., BC847AT (1E), BC847BT (1F), BC847CT (1G) - supporting consistent circuit performance across volume builds. |
| SOT416 (SC-75) package | Reduces board area by ~40% vs. SOT23; enables routing in tight pitch layouts while maintaining manufacturability with standard 4 mm tape-and-reel handling. |
| Low VCE(sat) | Ensures <100 mW conduction loss at 10 mA/0.5 mA drive and <400 mW at 100 mA/5 mA - critical for battery-powered sensor nodes and portable logic interfaces. |
| 100 MHz fT | Supports stable small-signal amplification in audio preamps and RF front-end bias networks without requiring external compensation. |
| JEDEC-compliant SC-75 outline | Guarantees mechanical interoperability with automated pick-and-place equipment and reflow profiles defined in IPC-7351B. |
Applications
| LED Driver Circuit | Microcontroller GPIO Expander |
|---|---|
Use Scenario: Driving 20 mA indicator LEDs from 3.3 V MCU outputs with current limiting via base resistor. IC Role / Device Role / Timing Role: NPN switch controlling LED anode-to-VCC path; operates in saturation with <200 mV drop at nominal current. Use Value: Enables direct interface without level-shifting; low VCE(sat) preserves LED brightness and reduces thermal stress on MCU pins. |
Use Scenario: Amplifying weak sensor signals (e.g., thermistor divider output) into clean digital thresholds for MCU ADC input. IC Role / Device Role / Timing Role: Common-emitter amplifier stage providing ~10× voltage gain with bandwidth sufficient for DC–10 kHz signals. Use Value: Improves signal-to-noise ratio before digitization; hFE consistency ensures repeatable gain calibration across units. |
| Power Supply Enable Switch | Level Translation Interface |
Use Scenario: Enabling/disabling a 5 V rail using a 1.8 V logic signal from an FPGA or low-voltage controller. IC Role / Device Role / Timing Role: Low-side switch controlling ground path of downstream LDO or DC-DC converter enable pin. Use Value: Eliminates need for dedicated level translators; fast turn-on/off (<100 ns) supports dynamic power sequencing in multi-rail systems. |
Use Scenario: Converting 1.2 V I²C bus signals to 3.3 V levels for legacy peripherals in mixed-voltage SoC designs. IC Role / Device Role / Timing Role: Bidirectional open-collector translator using two BC847T devices per line (pull-up on each side). Use Value: Maintains I²C timing compliance (rise/fall times <300 ns); SC-75 footprint allows placement adjacent to bus connectors without trace stubs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN general-purpose transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC847BW,115 | SOT323 (SC-70) package; larger footprint (2.2 mm × 1.35 mm) and higher Ptot (200 mW); identical electrical specs and marking ("1F"). | Better thermal performance and easier hand-soldering; less suitable for ultra-dense layouts where SC-75 is mandated. | Select BC847BW,115 when thermal margin >50 mW is required or when assembly process favors SC-70 reliability over SC-75 miniaturization. |
| MMBT3904LT1G | Same SOT23-3 package but different gain distribution (hFE = 100–300); higher VCEO (40 V), lower Rth(j-a) (500 K/W), and industry-standard marking ("1AM"). | Widely available alternative with broader distributor stock; not pin-compatible with SOT416 - requires PCB redesign. | Choose MMBT3904LT1G only if SOT23 layout is already established and SC-75 footprint cannot be accommodated. |
Compared with BC847BW,115, the BC847T,115 trades thermal margin and ease of assembly for 35% smaller board area; versus MMBT3904LT1G, it offers superior miniaturization and JEDEC SC-75 compliance but requires new footprint validation and has no direct pinout match.
Availability
BC847T,115 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller GPIO expansion, power supply enable switches, and level translation interfaces requiring stable component supply and long-term obsolescence management.
Supply support for BC847T,115 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The BC847 series was designed as a family of standardized, cost-optimized general-purpose transistors targeting high-volume consumer electronics, industrial controls, and portable equipment where reliability, consistency, and SMD manufacturability are essential.
FAQ
What is the package type and marking code for BC847T,115?
The BC847T,115 uses the SOT416 (SC-75) surface-mount package and is marked with the code "1N" on its top surface. This marking identifies it as the standard-gain variant within the BC847T family and confirms its JEDEC SC-75 mechanical outline per NXP's ordering information table.
Does BC847T,115 have a specified hFE group, and how is it determined?
Yes - the BC847T,115 corresponds to the standard-gain version of the BC847 series, with hFE ranging from 110 to 800 depending on test conditions. Its exact group (A/B/C) is not encoded in the "1N" marking; instead, variants like BC847AT, BC847BT, and BC847CT use "1E", "1F", and "1G" respectively. The BC847T,115 itself is ungrouped unless specified otherwise in order codes.
What is the maximum power dissipation of BC847T,115 at room temperature?
The BC847T,115 has a total power dissipation (Ptot) rating of 150 mW at ambient temperature ≤25 °C, as defined in Table 6 of the NXP datasheet. This value assumes mounting on an FR4 PCB with standard footprint and single-sided copper; derating is required above 25 °C based on its 833 K/W thermal resistance.
Can BC847T,115 be used in linear amplification applications?
Yes - the BC847T,115 supports linear operation with typical noise figure of 2–10 dB at 1 kHz and transition frequency (fT) of 100 MHz. Its VBE of 580–700 mV at IC = 2 mA and low Cc (≤1.5 pF) make it suitable for low-noise preamplifiers and signal conditioning stages where moderate gain and bandwidth are required.
Is BC847T,115 automotive qualified?
No - the BC847T,115 is not automotive qualified. Per NXP's legal disclaimers in Section 12.3, non-automotive qualified products like BC847T,115 are neither tested nor warranted for use in safety-critical, life-support, or automotive applications. Its qualification status remains industrial/consumer grade only.
BC847T,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SC-75, SOT-416
- Packaging:
- Bulk
- Product Status:
- Active
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 45 V
- Vce Saturation (Max) @ Ib, Ic:
- 400mV @ 5mA, 100mA
- Current - Collector Cutoff (Max):
- 15nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 110 @ 2mA, 5V
- Power - Max:
- 150 mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-75
BC847T,115 FAQ
1.How can I place an order for BC847T,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BC847T,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 BC847T,115 reliable?
The price and inventory of BC847T,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC847T,115 is usually 5 days.
3.What payment methods are accepted for BC847T,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC847T,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC847T,115?
BC847T,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC847T,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 BC847T,115?
For technical support, including BC847T,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC847T,115 requirements.
6.How does Aetrix verify that BC847T,115 is sourced from the original manufacturer or authorized distributors?
All BC847T,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 BC847T,115 meets industry standards.
7.What is the process for return or replacement of BC847T,115?
All BC847T,115 units undergo pre-shipment inspection (PSI). If there is an issue with BC847T,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 BC847T,115 part is unused and in its original packaging.
Return procedure for BC847T,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC847T,115 Tags
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MMBT3906LT1G
onsemi
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MMBT3904-7-F
Diodes Incorporated
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MMBT3904LT1G
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MMBT3906-7-F
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MMBT3904-TP
Micro Commercial Co
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MMBT2222A-7-F
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BC846BLT1G
onsemi
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BC847B,215
Nexperia USA Inc.
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Micro Commercial Co
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MMBTA06LT1G
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MMBT2222ALT1G
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