My Inquiry
My Account
Nexperia USA Inc. BC846B/DG/B3,215
- Part No.:
- BC846B/DG/B3,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BC846B/DG/B3,215.pdf
- Description:
- TRANS NPN 65V 0.1A TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,519
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BC846B/DG/B3,215 from Nexperia is an NPN general-purpose transistor in SOT323 (SC-70) package, rated for 65 V VCEO, 100 mA IC, and DC current gain (hFE) of 200–450 at VCE = 5 V, IC = 2 mA. It serves as a low-power switching or small-signal amplification device in space-constrained consumer and industrial PCBs.
For engineers reviewing the BC846B/DG/B3,215 datasheet, BC846B/DG/B3,215 pinout, BC846B/DG/B3,215 application, or BC846B/DG/B3,215 equivalent, this page delivers verified electrical parameters, terminal mapping, thermal behavior, gain group differentiation, and real-world use context - all aligned to Nexperia's Rev. 12 product data sheet.
Technical Context
This transistor operates in active, saturation, and cutoff regions with defined absolute maximum ratings: 65 V VCEO, 80 V VCBO, 6 V VEBO, and 200 mW Ptot at Tamb ≤ 25 °C on FR4 PCB. Its hFE spread (200–450) reflects Group B gain binning per ordering code "B".
Thermal resistance Rth(j-a) is 625 K/W under standard mounting conditions, and key dynamic characteristics include fT ≥ 100 MHz, Cc = 2–3 pF, and VCE(sat) ≤ 400 mV at IC = 100 mA / IB = 5 mA - confirming suitability for medium-speed digital switching and analog amplification up to ~100 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 65 V - Maximum safe collector-emitter voltage before breakdown; defines upper rail limit in low-voltage switching circuits. |
| IC | 100 mA continuous - Supports load switching up to ~100 mA DC, e.g., LED drivers or logic-level interface buffers. |
| hFE | 200–450 @ VCE=5 V, IC=2 mA - Group B gain bin enables predictable base drive sizing for consistent saturation in discrete amplifier stages. |
| VCE(sat) | ≤400 mV @ IC=100 mA, IB=5 mA - Ensures low conduction loss and minimal self-heating during saturated switching. |
| fT | ≥100 MHz - Enables stable small-signal amplification and fast edge response in clock buffering or RF front-end bias networks. |
| Rth(j-a) | 625 K/W - Requires careful thermal layout on FR4; derating needed above 25 °C ambient for sustained 100 mA operation. |
Pinout & Package
SOT323 (SC-70) plastic surface-mount package: 1.3 mm × 1.8 mm footprint, 0.95 mm height, 3-terminal leadframe with gull-wing leads. Designed for reflow soldering using IPC-7351-compliant land pattern (2.35 mm × 0.6 mm pads).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Control input; requires current-limited drive (e.g., 1–5 mA) to achieve full saturation at 100 mA collector load. |
| 2 | Emitter (E) | Reference node for bias network; connected to ground or low-side return path in common-emitter configurations. |
| 3 | Collector (C) | Output terminal; handles switched load current up to 100 mA; routed away from noise-sensitive traces due to junction capacitance (2–3 pF). |
Key Features
| Feature | Design Value |
|---|---|
| High gain consistency (Group B) | hFE = 200–450 ensures reliable base resistor selection across production lots without recalibration. |
| Low saturation voltage | VCE(sat) ≤ 400 mV at full rated current minimizes power loss and thermal rise in compact layouts. |
| Small-outline SMT package | SOT323 footprint saves >60% board area vs. SOT23, enabling high-density routing in wearables and IoT sensors. |
| Wide operating temperature | −65 °C to +150 °C junction range supports deployment in automotive under-hood auxiliary modules and industrial controllers. |
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: Discrete NPN switch replacing integrated driver ICs where cost and footprint are critical. Use Value: Low VCE(sat) (<400 mV) preserves LED forward voltage margin; hFE ≥ 200 allows 10 kΩ base resistor for <0.3 mA GPIO loading. |
Use Scenario: Level-shifting and current boosting for legacy 5 V peripherals interfaced to modern 3.3 V microcontrollers. IC Role / Device Role / Timing Role: Active pull-up/pull-down buffer enabling bidirectional signal translation without timing skew. Use Value: fT ≥ 100 MHz ensures sub-10 ns propagation delay; low Cc (2–3 pF) prevents signal integrity degradation on 10 MHz control lines. |
| Audio Pre-amplifier Stage | Power Supply Enable Switch |
|
Use Scenario: Low-noise voltage amplification stage in portable audio codecs with 200 Ω source impedance. IC Role / Device Role / Timing Role: Common-emitter small-signal amplifier with emitter degeneration for linearity and bandwidth control. Use Value: NF = 2–10 dB at 1 kHz enables SNR > 70 dB; hFE stability over −55 °C to +150 °C maintains gain flatness across environmental stress tests. |
Use Scenario: Enabling/disabling 12 V auxiliary rails in industrial PLC I/O modules via 3.3 V logic signals. IC Role / Device Role / Timing Role: High-side or low-side enable switch controlling PMOS/NMOS pass transistors in LDO or DC-DC enable paths. Use Value: 65 V VCEO safely isolates control logic from 12–24 V supply domains; 200 mW Ptot rating accommodates brief inrush currents during rail startup. |
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,215 | Same SOT323 package; higher hFE range (250–630), identical VCEO/IC ratings. | Better suited for ultra-low-base-drive designs (e.g., battery-powered sensors), but may require tighter bias tolerance. | Select when higher gain stability is required at low IC (<1 mA); verify base resistor values to avoid overdrive. |
| MMBT3904LT1G | Same functionality, SOT23 package; lower max VCEO (40 V), hFE = 100–300, larger footprint (2.9 mm × 1.3 mm). | Compatible in non-space-constrained boards; not drop-in due to different pinout (E-B-C vs. E-C-B) and thermal profile. | Choose only if SOT23 is already standardized in design; requires PCB redesign and thermal validation due to 3× higher Rth(j-a). |
Compared with BC846B/DG/B3,215, BC847BW offers higher gain headroom for weak-drive systems, while MMBT3904LT1G trades miniaturization for broader industry familiarity - making the BC846B optimal for new compact designs needing proven 65 V/100 mA performance in SC-70.
Availability
BC846B/DG/B3,215 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller GPIO expansion, audio pre-amplifier stages, and power supply enable switches requiring stable component supply and tight gain binning.
Supply support for BC846B/DG/B3,215 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 - including logic, discretes, MOSFETs, and ESD protection devices.
The BC846xW series belongs to Nexperia's general-purpose bipolar transistor portfolio, engineered for cost-sensitive, space-constrained applications demanding consistent gain, low saturation voltage, and robust thermal performance in SMT assembly.
FAQ
What is the exact gain group designation for BC846B/DG/B3,215?
The "B" in BC846B/DG/B3,215 denotes Group B hFE binning: 200–450 at VCE = 5 V and IC = 2 mA, confirmed in Table 2 and Table 8 of Nexperia's Rev. 12 datasheet. This is distinct from BC846AW (110–220) and BC846W (110–450).
Can BC846B/DG/B3,215 replace BC846BW in existing designs?
Yes - BC846B/DG/B3,215 is the same as BC846BW per Nexperia's ordering nomenclature; "DG/B3,215" indicates tape-and-reel packaging (7" reel, 3000 pcs) and manufacturing site code. Electrical specs, pinout, and thermal behavior are identical to BC846BW.
Is this transistor qualified for automotive applications?
No - BC846B/DG/B3,215 is not AEC-Q101 qualified. The datasheet explicitly states "Non-automotive qualified products" in Section 14, and no automotive test data or qualification records are included. Use only in industrial, consumer, or commercial environments.
What is the recommended PCB footprint for SOT323 reflow soldering?
The official reflow footprint (Fig. 11) specifies 2.35 mm × 0.6 mm solder lands, 0.55 mm spacing between pads, and 1.325 mm center-to-center pitch. Copper thickness must be 35 µm (1 oz), tin-plated, on single-sided FR4 - deviation risks tombstoning or insufficient thermal relief.
BC846B/DG/B3,215 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BC846x
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 65 V
- 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:
- 250 mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BC846B/DG/B3,215 FAQ
1.How can I place an order for BC846B/DG/B3,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for BC846B/DG/B3,215 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 BC846B/DG/B3,215 reliable?
The price and inventory of BC846B/DG/B3,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC846B/DG/B3,215 is usually 5 days.
3.What payment methods are accepted for BC846B/DG/B3,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC846B/DG/B3,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC846B/DG/B3,215?
BC846B/DG/B3,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC846B/DG/B3,215 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 BC846B/DG/B3,215?
For technical support, including BC846B/DG/B3,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC846B/DG/B3,215 requirements.
6.How does Aetrix verify that BC846B/DG/B3,215 is sourced from the original manufacturer or authorized distributors?
All BC846B/DG/B3,215 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 BC846B/DG/B3,215 meets industry standards.
7.What is the process for return or replacement of BC846B/DG/B3,215?
All BC846B/DG/B3,215 units undergo pre-shipment inspection (PSI). If there is an issue with BC846B/DG/B3,215, 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 BC846B/DG/B3,215 part is unused and in its original packaging.
Return procedure for BC846B/DG/B3,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC846B/DG/B3,215 Tags
-
MMBT3906LT1G
onsemi
-
MMBT3904-7-F
Diodes Incorporated
-
MMBT3904LT1G
onsemi
-
MMBT3906-7-F
Diodes Incorporated
-
MMBT3904-TP
Micro Commercial Co
-
MMBT2222A-7-F
Diodes Incorporated
-
BC846BLT1G
onsemi
-
BC847B,215
Nexperia USA Inc.
-
SMMBT3904LT1G
onsemi
-
MMBT2222A-TP
Micro Commercial Co
-
MMBTA06LT1G
onsemi
-
MMBT2222ALT1G
onsemi
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
