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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

Toshiba Semiconductor and Storage 2SC4116-O(TE85L,F)

Name: 2SC4116-O(TE85L,F)
Brand: Toshiba Semiconductor and Storage
SKU: 2SC4116-O(TE85L,F)
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2SC4116-O(TE85L,F)

Manufacturer:: Toshiba Semiconductor and Storage

Category:: Single Bipolar Transistors

Package:: SC-70, SOT-323

Datasheet:: 2SC4116-O(TE85L,F).pdf

Description:: TRANS NPN 50V 0.15A SC-70

Quantity:: RFQ Add To RFQ list

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Inventory:4,672

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Product details

Overview

2SC4116-O(TE85L,F) from Toshiba Electronic Devices & Storage Corporation is a silicon NPN epitaxial bipolar transistor designed for low-frequency and audio-frequency amplifier stages, featuring V_CEO = 50 V, I_C = 150 mA (max), h_FE = 70–140 (O-class), NF = 1 dB (typ.), and AEC-Q101 qualification for automotive-grade reliability in AM amplifier circuits.

For engineers reviewing the 2SC4116-O(TE85L,F) datasheet, 2SC4116-O(TE85L,F) pinout, 2SC4116-O(TE85L,F) application, or 2SC4116-O(TE85L,F) equivalent, key selection criteria include its USM package footprint, complementary pairing with 2SA1586, h_FE linearity (0.95 typ.), and low-noise performance at 1 kHz with R_G = 10 kΩ.

Technical Context

This NPN transistor operates in linear amplification mode with DC current gain specified across I_C = 2 mA (h_FE test condition) and exhibits excellent h_FE linearity-ratio of h_FE at 0.1 mA to h_FE at 2 mA is 0.95 (typ.)-supporting stable small-signal gain over bias range. Its f_T = 80 MHz (typ.) enables reliable operation up to audio band and low-frequency RF stages.

Noise figure is characterized at V_CE = 6 V, I_C = 0.1 mA, f = 1 kHz, R_G = 10 kΩ, delivering NF = 1 dB (typ.), making it suitable for high-fidelity preamplifier inputs where signal integrity is critical. The device uses an epitaxial base structure optimized for low 1/f noise and consistent β behavior.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	50 V - Supports rail voltages up to ±24 V in Class-A audio output stages without saturation risk.
I_C (max)	150 mA - Enables driver-stage operation into 8 Ω loads with ≤1.2 V_CE(sat) at I_B = 10 mA.
h_FE range	70–140 (O-class) - Ensures predictable DC bias stability in fixed-bias or emitter-degenerated amplifier topologies.
NF	1 dB (typ.) - Delivers minimal added noise in microphone preamp or phono stage input circuits.
f_T	80 MHz (typ.) - Confirms usable bandwidth beyond 20 kHz with margin for harmonic content in audio applications.
C_ob	3.5 pF (max) - Limits Miller capacitance impact on high-frequency roll-off in common-emitter configurations.
P_C	200 mW - Requires thermal derating above 25 °C ambient; supports continuous operation on FR4 with 0.5 mm² copper pad.

Pinout & Package

Package: USM (Ultra Small Mold), 3-pin surface-mount, 6.0 mg typical weight, footprint compatible with JEDEC TO-236AB outline.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control terminal for forward-active bias; requires current-limited drive to maintain h_FE linearity.
2	Emitter	Common reference node in CE/CC configurations; connects directly to ground or emitter resistor for DC stabilization.
3	Collector	Output terminal carrying amplified current; routed to load or next stage with minimal parasitic inductance.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive temperature cycling (−40 °C to 125 °C) and mechanical stress per JESD22 standards.
h_FE linearity	h_FE(0.1 mA)/h_FE(2 mA) = 0.95 (typ.) - Reduces harmonic distortion in Class-A amplifiers.
Complementary pair	Matched with 2SA1586 PNP for push-pull output stages requiring symmetrical gain and thermal tracking.
Low-noise design	NF = 1 dB (typ.) at 1 kHz ensures <0.1% THD+N in preamplifier inputs with 10 kΩ source impedance.

Applications

AM Radio Intermediate Frequency Amplifier	Automotive Cabin Audio Preamp Stage
Use Scenario: Amplifies 455 kHz IF signal after mixer in analog AM radio receivers before detection. IC Role / Device Role / Timing Role: NPN small-signal amplifier operating in common-emitter configuration with tuned collector load. Use Value: High V_CEO (50 V) accommodates supply headroom for AGC-controlled gain; low NF preserves weak-signal SNR.	Use Scenario: First-stage voltage amplification of line-level audio signals in OEM infotainment head units. IC Role / Device Role / Timing Role: Single-ended Class-A preamplifier with emitter degeneration for DC bias stability. Use Value: AEC-Q101 qualification ensures operation across −40 °C to 105 °C ambient; h_FE linearity minimizes intermodulation distortion.
Portable Audio Device Output Driver	Industrial Sensor Signal Conditioning
Use Scenario: Drives 32 Ω headphones or low-impedance transducers in battery-powered audio players. IC Role / Device Role / Timing Role: Emitter-follower buffer providing low-Z output while isolating sensitive gain stages. Use Value: I_C = 150 mA (max) supports ≥100 mW into 32 Ω; USM package enables compact PCB layout.	Use Scenario: Amplifies low-level DC-coupled signals from thermocouples or strain gauges in PLC analog input modules. IC Role / Device Role / Timing Role: Precision DC amplifier with matched h_FE and low V_CE(sat) for minimal offset error. Use Value: V_CE(sat) ≤ 0.25 V at I_C = 100 mA reduces self-heating drift; low ICBO (<0.1 µA) maintains accuracy over temperature.

AM Radio Intermediate Frequency Amplifier

Automotive Cabin Audio Preamp Stage

Use Scenario: Amplifies 455 kHz IF signal after mixer in analog AM radio receivers before detection.

IC Role / Device Role / Timing Role: NPN small-signal amplifier operating in common-emitter configuration with tuned collector load.

Use Value: High V_CEO (50 V) accommodates supply headroom for AGC-controlled gain; low NF preserves weak-signal SNR.

Use Scenario: First-stage voltage amplification of line-level audio signals in OEM infotainment head units.

IC Role / Device Role / Timing Role: Single-ended Class-A preamplifier with emitter degeneration for DC bias stability.

Use Value: AEC-Q101 qualification ensures operation across −40 °C to 105 °C ambient; h_FE linearity minimizes intermodulation distortion.

Portable Audio Device Output Driver

Industrial Sensor Signal Conditioning

Use Scenario: Drives 32 Ω headphones or low-impedance transducers in battery-powered audio players.

IC Role / Device Role / Timing Role: Emitter-follower buffer providing low-Z output while isolating sensitive gain stages.

Use Value: I_C = 150 mA (max) supports ≥100 mW into 32 Ω; USM package enables compact PCB layout.

Use Scenario: Amplifies low-level DC-coupled signals from thermocouples or strain gauges in PLC analog input modules.

IC Role / Device Role / Timing Role: Precision DC amplifier with matched h_FE and low V_CE(sat) for minimal offset error.

Use Value: V_CE(sat) ≤ 0.25 V at I_C = 100 mA reduces self-heating drift; low ICBO (<0.1 µA) maintains accuracy over temperature.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN small-signal amplifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
2SC4081-O	V_CEO = 30 V (lower), h_FE = 70–140, same USM package, no AEC-Q101 certification	Limited to ≤±15 V supplies; unsuitable for automotive under-hood environments	Select when cost sensitivity outweighs automotive qualification and voltage headroom requirements.
MMBT3904LT1G	V_CEO = 40 V, h_FE = 100–300, SOT-23 package, AEC-Q101 qualified, NF = 5 dB (max)	Higher noise floor limits use in ultra-low-noise preamps; wider h_FE spread increases bias variance.	Prefer for general-purpose switching or medium-fidelity amplification where footprint compatibility is critical.

Compared with 2SC4116-O(TE85L,F), 2SC4081-O sacrifices voltage rating and automotive qualification but matches h_FE binning and package; MMBT3904LT1G offers broader industry availability and SOT-23 compatibility but trades 4 dB higher noise and looser h_FE tolerance for cost and sourcing flexibility.

Availability

2SC4116-O(TE85L,F) is available at Aetrix Electronics and suitable for AM radio receivers, automotive cabin audio systems, portable headphone drivers, and industrial sensor signal conditioning requiring stable component supply and AEC-Q101-compliant performance.

Supply support for 2SC4116-O(TE85L,F) 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

Toshiba Electronic Devices & Storage Corporation designs and manufactures discrete semiconductors, power devices, and logic ICs with emphasis on automotive, industrial, and consumer applications.

The 2SC4116-O(TE85L,F) belongs to Toshiba's legacy NPN transistor product line targeting high-linearity, low-noise analog amplification in space-constrained and thermally demanding environments.

FAQ

What is the h_FE classification for 2SC4116-O(TE85L,F)?

The "O" suffix in 2SC4116-O(TE85L,F) denotes the h_FE bin: 70 to 140 at V_CE = 6 V and I_C = 2 mA. This tight gain range simplifies bias network design in production amplifiers and ensures predictable DC operating points across manufacturing lots. The 2SC4116-O(TE85L,F) achieves this specification using Toshiba's epitaxial base process and laser-trimmed emitter geometry.

Is 2SC4116-O(TE85L,F) suitable for automotive applications?

Yes, 2SC4116-O(TE85L,F) is AEC-Q101 qualified, confirming compliance with stress tests for temperature cycling, humidity, mechanical shock, and solderability required for automotive electronics. It operates reliably from −40 °C to 125 °C junction temperature and is approved for use in cabin audio systems-not under-hood or safety-critical subsystems. The 2SC4116-O(TE85L,F) meets these requirements per Toshiba's Rev.7.0.A qualification report.

What is the maximum collector power dissipation for 2SC4116-O(TE85L,F)?

The maximum collector power dissipation (P_C) for 2SC4116-O(TE85L,F) is 200 mW when mounted on a 25.4 mm × 25.4 mm × 1.6 mm FR4 board with three 0.5 mm² copper pads. Derating begins at 25 °C ambient, reaching zero dissipation at 125 °C case temperature. This rating applies specifically to the USM package and must be verified against actual board layout and airflow in the 2SC4116-O(TE85L,F) application.

How does the noise figure of 2SC4116-O(TE85L,F) compare to standard small-signal transistors?

The 2SC4116-O(TE85L,F) delivers NF = 1 dB (typ.) at 1 kHz with V_CE = 6 V, I_C = 0.1 mA, and R_G = 10 kΩ-significantly lower than generic transistors like BC547 (NF ≈ 10 dB). This low-noise performance results from optimized base doping and epitaxial layer thickness, enabling use in microphone preamps and phono stages where signal-to-noise ratio is critical. The 2SC4116-O(TE85L,F) maintains this advantage across its specified operating range.

What complementary PNP transistor pairs with 2SC4116-O(TE85L,F)?

The 2SC4116-O(TE85L,F) is explicitly designated as complementary to the 2SA1586 PNP transistor in Toshiba's documentation. Both share matching V_CEO, I_C, h_FE ranges, and USM packaging, enabling thermally balanced push-pull output stages. Their paired characteristics-including similar f_T and C_ob-minimize crossover distortion in Class-AB amplifiers. This complementarity is confirmed in Section 2, Feature (7) of the 2SC4116-O(TE85L,F) datasheet.

2SC4116-O(TE85L,F) Specifications

Product attributes: Attribute value

Manufacturer:: Toshiba Semiconductor and Storage

Series:: -

Package/Case:: SC-70, SOT-323

Packaging:: Tape & Reel (TR)

Product Status:: Not For New Designs

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 150 mA

Voltage - Collector Emitter Breakdown (Max):: 50 V

Vce Saturation (Max) @ Ib, Ic:: 250mV @ 10mA, 100mA

Current - Collector Cutoff (Max):: 100nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 70 @ 2mA, 6V

Power - Max:: 100 mW

Frequency - Transition:: 80MHz

Operating Temperature:: 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SC-70

2SC4116-O(TE85L,F) FAQ

1.How can I place an order for 2SC4116-O(TE85L,F) through Aetrix?

Please submit a Request for Quotation (RFQ) for 2SC4116-O(TE85L,F) 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 2SC4116-O(TE85L,F) reliable?

The price and inventory of 2SC4116-O(TE85L,F) are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SC4116-O(TE85L,F) is usually 5 days.

3.What payment methods are accepted for 2SC4116-O(TE85L,F)?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SC4116-O(TE85L,F) transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2SC4116-O(TE85L,F)?

2SC4116-O(TE85L,F) orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2SC4116-O(TE85L,F) 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 2SC4116-O(TE85L,F)?

For technical support, including 2SC4116-O(TE85L,F) datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SC4116-O(TE85L,F) requirements.

6.How does Aetrix verify that 2SC4116-O(TE85L,F) is sourced from the original manufacturer or authorized distributors?

All 2SC4116-O(TE85L,F) 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 2SC4116-O(TE85L,F) meets industry standards.

7.What is the process for return or replacement of 2SC4116-O(TE85L,F)?

All 2SC4116-O(TE85L,F) units undergo pre-shipment inspection (PSI). If there is an issue with 2SC4116-O(TE85L,F), 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 2SC4116-O(TE85L,F) part is unused and in its original packaging.

Return procedure for 2SC4116-O(TE85L,F):

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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