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onsemi 2SC3914-TB-E
- Part No.:
- 2SC3914-TB-E
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
2SC3914-TB-E.pdf
- Description:
- TRANS NPN 50V 0.5A 3-CP
- Quantity:
- Payment:
- Shipping:
Inventory:55,879
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Product details
Overview
2SC3914-TB-E from SANYO is an NPN epitaxial planar silicon transistor with integrated bias resistors (R1 = 2.2 kΩ, R2 = 10 kΩ), designed for switching applications in interface and driver circuits. It supports IC = −500 mA, VCEO = −50 V, and operates in a compact CP package with a maximum power dissipation of 200 mW at Ta = 25°C.
For engineers reviewing the 2SC3914-TB-E datasheet, pinout, applications, or equivalent options, key selection criteria include guaranteed hFE ≥ 100 at IC = −50 mA, VI(on) ≤ 1.0 V, VI(off) ≥ 0.5 V, and verified CP-package thermal performance up to TJ = 150°C.
Technical Context
The 2SC3914-TB-E integrates two on-die base bias resistors to simplify external circuitry in digital switching designs. Its internal resistor network (R1 = 2.2 kΩ, R2 = 10 kΩ) enables direct TTL/CMOS-level input drive without discrete base resistors.
It exhibits DC current gain hFE = 100–320 at IC = −50 mA and VCE = −5 V, with fT = 250 MHz under specified conditions (VCE = −10 V, IC = −5 mA). The device is rated for continuous collector current up to −500 mA and features guaranteed saturation voltage VCE(sat) ≤ −0.3 V at IC = −100 mA and IB = −5 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V: Maximum allowable collector-emitter voltage before breakdown in open-base configuration. |
| IC (max) | −500 mA: Continuous collector current rating defining safe switching load capacity. |
| PC (max) | 200 mW: Maximum power dissipation at 25°C ambient, limiting thermal design headroom. |
| hFE | 100–320 at IC = −50 mA: Confirmed DC current gain range enabling predictable base drive sizing. |
| fT | 250 MHz: Transition frequency confirming suitability for high-speed digital switching up to ~50 MHz edge rates. |
| R1 / R2 | 2.2 kΩ / 10 kΩ: Integrated base bias resistors eliminating need for two external components in standard switch layouts. |
Pinout & Package
SANYO CP package: ultra-small surface-mount plastic package (2.7 × 2.3 × 1.2 mm), lead-free compatible, optimized for automated placement and reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Base) | Input node connected to internal R1–R2 divider junction | Accepts logic-level signals directly; no external base resistor required for standard TTL/CMOS drive. |
| 2 (Emitter) | Common reference terminal (GND-side connection) | Provides return path for both collector and base currents; electrically tied to PCB ground plane. |
| 3 (Collector) | Switched output terminal | Drives loads (e.g., relays, LEDs, MOSFET gates) with up to −500 mA sink capability. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | R1 = 2.2 kΩ and R2 = 10 kΩ on-chip resistors reduce BOM count and layout area by eliminating two external components. |
| High-current switching | Rated for −500 mA continuous collector current, supporting medium-power loads such as small solenoids or LED arrays. |
| Low saturation voltage | VCE(sat) ≤ −0.3 V at IC = −100 mA / IB = −5 mA ensures minimal conduction loss and heat generation during ON-state operation. |
| High-speed response | fT = 250 MHz enables clean switching waveforms in digital interface circuits operating up to 50 MHz clock domains. |
Applications
| LED Driver Circuit | Microcontroller Interface |
|---|---|
Use Scenario: Driving multiplexed 7-segment displays or status indicator arrays from low-voltage logic outputs. IC Role / Device Role / Timing Role: NPN switch sinking current from LED anodes tied to VCC. Use Value: On-chip R1/R2 allows direct connection to 3.3 V or 5 V MCU GPIO pins without external resistors, reducing component count and board space. | Use Scenario: Level-shifting and isolating 3.3 V microcontroller outputs driving 5 V peripheral enable lines. IC Role / Device Role / Timing Role: Digital buffer/sink switch translating logic states between voltage domains. Use Value: Guaranteed VI(on) ≤ 1.0 V and VI(off) ≥ 0.5 V ensure reliable turn-on/off with standard CMOS thresholds, minimizing false triggering. |
| Relay Driver Stage | Inverter Output Stage |
Use Scenario: Controlling 12 V/24 V electromagnetic relays in industrial control panels. IC Role / Device Role / Timing Role: Final-stage current amplifier interfacing logic-level signals to relay coils. Use Value: −500 mA IC rating and −50 V VCEO support common relay coil impedances while maintaining margin against inductive kickback. | Use Scenario: Constructing push-pull or totem-pole inverters in discrete logic subsystems. IC Role / Device Role / Timing Role: Active pull-down element paired with PNP counterpart (e.g., 2SA1520) in complementary switching pair. Use Value: Matched hFE range (100–320) and symmetric R1/R2 values with 2SA1520 enable balanced rise/fall times and reduced shoot-through risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN digital transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NSV11201T1G | R1 = 4.7 kΩ, R2 = 47 kΩ; hFE = 35–100; SOT-23 package | Lower gain and higher input resistance limit drive strength at high frequencies | Preferred where lower base current consumption is prioritized over switching speed |
| DTC123YKAT146 | R1 = 2.2 kΩ, R2 = 10 kΩ; hFE = 100–600; SMT3 package | Higher hFE range improves noise immunity but requires verification of VCEO = −50 V compatibility | Drop-in replacement only if VCEO derating to −40 V is acceptable in target design |
Compared with NSV11201T1G and DTC123YKAT146, the 2SC3914-TB-E offers balanced hFE (100–320), proven CP-package thermal performance, and exact R1/R2 matching to its PNP complement 2SA1520-making it optimal for matched-pair switching stages where gain symmetry and footprint consistency matter.
Availability
2SC3914-TB-E is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller interface modules, relay driver stages, and inverter output stages requiring stable component supply and long-term obsolescence management.
Supply support for 2SC3914-TB-E 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
SANYO Electric Co., Ltd. was a Japanese semiconductor manufacturer known for high-reliability discrete devices and analog ICs before its acquisition by Panasonic in 2012.
The 2SC3914-TB-E belongs to SANYO's CP-package digital transistor family, engineered specifically for space-constrained switching applications where integration of bias resistors reduces design complexity and improves assembly yield.
FAQ
What is the pin configuration of the 2SC3914-TB-E?
The 2SC3914-TB-E uses a 3-pin CP package with Pin 1 = Base (internal R1–R2 junction), Pin 2 = Emitter (GND reference), and Pin 3 = Collector (switched output). This configuration is standardized across SANYO's CP-series digital transistors and matches the physical layout shown in Package Dimensions drawing No.2018B.
Does the 2SC3914-TB-E require external base resistors?
No, the 2SC3914-TB-E does not require external base resistors because it integrates R1 = 2.2 kΩ and R2 = 10 kΩ on-die. These resistors allow direct connection to 3.3 V or 5 V logic outputs, simplifying circuit design and reducing PCB component count compared to conventional NPN transistors like BC847.
What is the maximum operating temperature for the 2SC3914-TB-E?
The 2SC3914-TB-E has a maximum junction temperature (TJ) of +150°C and a storage temperature range of −55°C to +150°C. Its CP package provides sufficient thermal dissipation for 200 mW operation at 25°C ambient, but derating is required above 25°C per the thermal resistance curve in the original SANYO specification sheet No.2161-2/3.
Is the 2SC3914-TB-E RoHS compliant?
Yes, the 2SC3914-TB-E is RoHS compliant and lead-free compatible, as confirmed by SANYO's product marking and packaging documentation (PS No.2161-3/3). The "TB-E" suffix denotes tape-and-reel packaging meeting JEDEC standards for surface-mount assembly and environmental compliance.
How does the 2SC3914-TB-E compare to the 2SA1520 in circuit design?
The 2SC3914-TB-E (NPN) and 2SA1520 (PNP) share identical CP packaging, matched R1/R2 values (2.2 kΩ / 10 kΩ), and complementary electrical characteristics-enabling symmetrical push-pull or inverter designs. Their coordinated hFE ranges and saturation voltages allow balanced switching behavior when used together in complementary pairs, unlike generic NPN/PNP combinations.
2SC3914-TB-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Bulk
- Product Status:
- Active
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 500 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Vce Saturation (Max) @ Ib, Ic:
- -
- Current - Collector Cutoff (Max):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 50 @ 10mA, 5V
- Power - Max:
- 200 mW
- Frequency - Transition:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 3-CP
2SC3914-TB-E FAQ
1.How can I place an order for 2SC3914-TB-E through Aetrix?
Please submit a Request for Quotation (RFQ) for 2SC3914-TB-E 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 2SC3914-TB-E reliable?
The price and inventory of 2SC3914-TB-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SC3914-TB-E is usually 5 days.
3.What payment methods are accepted for 2SC3914-TB-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SC3914-TB-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 2SC3914-TB-E?
2SC3914-TB-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 2SC3914-TB-E 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 2SC3914-TB-E?
For technical support, including 2SC3914-TB-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SC3914-TB-E requirements.
6.How does Aetrix verify that 2SC3914-TB-E is sourced from the original manufacturer or authorized distributors?
All 2SC3914-TB-E 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 2SC3914-TB-E meets industry standards.
7.What is the process for return or replacement of 2SC3914-TB-E?
All 2SC3914-TB-E units undergo pre-shipment inspection (PSI). If there is an issue with 2SC3914-TB-E, 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 2SC3914-TB-E part is unused and in its original packaging.
Return procedure for 2SC3914-TB-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
2SC3914-TB-E Tags
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BC847B,215
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MMBTA06LT1G
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