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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Bipolar Transistor Arrays

Toshiba Semiconductor and Storage 2SC4207-Y(TE85L,F)

Name: 2SC4207-Y(TE85L,F)
Brand: Toshiba Semiconductor and Storage
SKU: 2SC4207-Y(TE85L,F)
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2SC4207-Y(TE85L,F)

Manufacturer:: Toshiba Semiconductor and Storage

Category:: Bipolar Transistor Arrays

Package:: SC-74A, SOT-753

Datasheet:: 2SC4207-Y(TE85L,F).pdf

Description:: TRANS 2NPN 50V 150MA SMV

Quantity:: RFQ Add To RFQ list

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Inventory:38,058

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Product details

Overview

2SC4207-Y(TE85L,F) from Toshiba Electronic Devices & Storage Corporation is a silicon NPN epitaxial transistor in a small dual-package configuration, designed for audio-frequency general-purpose amplifier applications. It delivers V_CEO = 50 V, I_C = 150 mA (max), h_FE = 120–240 (Y-class), f_T = 80 MHz (min), and V_CE(sat) = 0.1–0.25 V at I_C = 100 mA/I_B = 10 mA - enabling use in low-distortion preamplifier stages and driver circuits.

For engineers reviewing the 2SC4207-Y(TE85L,F) datasheet, 2SC4207-Y(TE85L,F) pinout, 2SC4207-Y(TE85L,F) application, or 2SC4207-Y(TE85L,F) equivalent, key selection considerations include its Y-class h_FE binning, complementary pairing with 2SA1618, dual-transistor topology in 2-3L1A package, and suitability for linear audio amplification where h_FE linearity (0.95 typ.) and low C_ob (2–3.5 pF) are critical.

Technical Context

This dual NPN transistor uses Toshiba's PCT (Planar Complementary Transistor) process to achieve high-voltage capability and stable DC current gain across operating conditions. Its h_FE linearity ratio h_FE(I_C = 0.1 mA)/h_FE(I_C = 2 mA) = 0.95 (typ.) supports consistent small-signal amplification across bias points, while f_T ≥ 80 MHz enables operation into upper audio and low-RF bands.

The device shares common absolute maximum ratings between both transistors (Q1/Q2), including V_CBO = 60 V, T_j = 150°C (for LF(T)-suffixed variants), and total P_C = 300 mW. Its low C_ob (2–3.5 pF) and tight V_CE(sat) tolerance support efficient Class-A/AB output stage design without excessive thermal derating.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	50 V - supports rail voltages up to ±24 V in dual-supply audio amplifiers without breakdown risk
I_C (max)	150 mA - sufficient for driving 8 Ω loads at ≤1 W in single-ended output stages
h_FE range	120–240 (Y-class) - ensures predictable bias stability in discrete gain blocks
f_T	≥80 MHz - preserves phase margin and bandwidth in feedback-coupled preamp designs
V_CE(sat)	0.1–0.25 V @ I_C=100 mA/I_B=10 mA - minimizes voltage drop and self-heating in saturated switching or emitter-follower roles
C_ob	2–3.5 pF @ V_CB=10 V - reduces Miller effect and high-frequency roll-off in common-emitter configurations
T_j (max)	150°C - allows operation in enclosed enclosures with moderate heatsinking

Pinout & Package

2SC4207-Y(TE85L,F) is housed in Toshiba's 2-3L1A small-outline dual-transistor package (JEITA-compliant, weight ≈ 0.014 g). The package integrates two identical NPN transistors sharing no internal connection; pin assignment is standardized per top-view marking orientation.

Pin/Terminal	Circuit Role	Design Meaning
Emitter 1 (E1)	Current sink for Q1	Primary path for collector current in first transistor; tied to local ground reference in emitter-follower or common-emitter topologies
Base 1 (B1)	Control input for Q1	Receives bias current to set Q1 operating point; requires series resistor to limit I_B ≤ 30 mA
Collector 1 (C1)	Current source for Q1	Connects to load or next stage; rated for 60 V V_CBO, 50 V V_CEO
Emitter 2 (E2)	Current sink for Q2	Independent emitter node for second transistor; enables dual-channel or push-pull configurations
Base 2 (B2)	Control input for Q2	Electrically isolated from B1; permits independent biasing of each transistor
Collector 2 (C2)	Current source for Q2	Rated identically to C1; supports symmetrical dual-amplifier or differential pair implementations

Key Features

Feature	Design Value
Y-class h_FE binning	Guaranteed 120–240 h_FE at V_CE = 6 V, I_C = 2 mA - simplifies bias network design without post-manufacture sorting
High h_FE linearity	h_FE(0.1 mA)/h_FE(2 mA) = 0.95 (typ.) - maintains gain consistency across signal amplitude variations in audio preamps
Dual-transistor monolithic die	Matched characteristics between Q1 and Q2 - enables precise differential pairs or balanced amplifier stages without external matching
Low output capacitance	C_ob = 2–3.5 pF - limits high-frequency instability in multi-stage amplifiers with global feedback
Complementary pairing	Designed as direct complement to 2SA1618 (PNP) - supports push-pull output stages with matched thermal and gain profiles

Applications

Audio Preamp Stage	Discrete Op-Amp Input Pair
Use Scenario: Low-noise voltage amplification in microphone preamplifiers and instrument DI boxes. IC Role / Device Role / Timing Role: Discrete NPN transistor configured in common-emitter topology to provide 20–40 dB gain before op-amp buffering. Use Value: High h_FE linearity and low C_ob preserve wideband frequency response and minimize intermodulation distortion below 20 kHz.	Use Scenario: Input differential pair in discrete operational amplifiers for studio-grade analog processing. IC Role / Device Role / Timing Role: Matched dual NPN transistors forming the front-end gain stage with active current mirror load. Use Value: Monolithic matching ensures <1 mV input offset and <0.01% gain error across temperature, critical for precision DC-coupled designs.
Class-A Headphone Driver	Push-Pull Output Stage
Use Scenario: Single-ended Class-A headphone amplifier delivering 50–100 mW into 32 Ω loads. IC Role / Device Role / Timing Role: Emitter-follower output device biased at ~50 mA quiescent current for zero-crossing distortion elimination. Use Value: Low V_CE(sat) (0.1 V typ.) and 150 mA I_C rating enable efficient power delivery with <0.1% THD+N at full output.	Use Scenario: Complementary push-pull output stage in compact audio power amplifiers (≤2 W). IC Role / Device Role / Timing Role: NPN half of push-pull pair, paired with 2SA1618 PNP device for symmetrical sourcing/sinking. Use Value: Matching V_CEO, h_FE range, and thermal profile with 2SA1618 minimizes crossover distortion and thermal runaway risk.

Audio Preamp Stage

Discrete Op-Amp Input Pair

Use Scenario: Low-noise voltage amplification in microphone preamplifiers and instrument DI boxes.

IC Role / Device Role / Timing Role: Discrete NPN transistor configured in common-emitter topology to provide 20–40 dB gain before op-amp buffering.

Use Value: High h_FE linearity and low C_ob preserve wideband frequency response and minimize intermodulation distortion below 20 kHz.

Use Scenario: Input differential pair in discrete operational amplifiers for studio-grade analog processing.

IC Role / Device Role / Timing Role: Matched dual NPN transistors forming the front-end gain stage with active current mirror load.

Use Value: Monolithic matching ensures <1 mV input offset and <0.01% gain error across temperature, critical for precision DC-coupled designs.

Class-A Headphone Driver

Push-Pull Output Stage

Use Scenario: Single-ended Class-A headphone amplifier delivering 50–100 mW into 32 Ω loads.

IC Role / Device Role / Timing Role: Emitter-follower output device biased at ~50 mA quiescent current for zero-crossing distortion elimination.

Use Value: Low V_CE(sat) (0.1 V typ.) and 150 mA I_C rating enable efficient power delivery with <0.1% THD+N at full output.

Use Scenario: Complementary push-pull output stage in compact audio power amplifiers (≤2 W).

IC Role / Device Role / Timing Role: NPN half of push-pull pair, paired with 2SA1618 PNP device for symmetrical sourcing/sinking.

Use Value: Matching V_CEO, h_FE range, and thermal profile with 2SA1618 minimizes crossover distortion and thermal runaway risk.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN general-purpose amplifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
2SC4081-Y(TE85L,F)	Same 2-3L1A package, identical h_FE bin (Y), but lower f_T = 50 MHz (vs. 80 MHz) and higher C_ob = 4.5 pF	Suitable for sub-10 MHz audio-only designs; less ideal for wideband or RF-coupled stages	Select when cost sensitivity outweighs bandwidth needs and layout space is constrained
MPSA18	TO-92 package, single transistor, h_FE = 100–300, f_T = 100 MHz, but no dual configuration or guaranteed h_FE linearity	Requires two devices and external matching for dual-channel use; lacks monolithic tracking	Choose for prototyping or low-volume builds where TO-92 hand-soldering is preferred over SMT

Compared with 2SC4207-Y(TE85L,F), 2SC4081-Y offers cost savings at the expense of bandwidth and capacitance control, while MPSA18 provides higher f_T but sacrifices dual integration and h_FE linearity - making 2SC4207-Y optimal for production audio gear requiring matched performance and SMT reliability.

Availability

2SC4207-Y(TE85L,F) is available at Aetrix Electronics and suitable for audio preamplifier modules, discrete operational amplifier designs, and Class-A headphone driver circuits requiring stable component supply and long-term obsolescence management.

Supply support for 2SC4207-Y(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 is a Japanese semiconductor manufacturer specializing in power devices, logic ICs, and discrete components with emphasis on reliability and industrial longevity.

The 2SC4207 belongs to Toshiba's legacy audio-frequency bipolar transistor family, engineered specifically for high-fidelity analog signal conditioning where gain stability, low noise, and thermal symmetry are essential.

FAQ

What is the h_FE classification for 2SC4207-Y(TE85L,F)?

The "Y" suffix in 2SC4207-Y(TE85L,F) denotes the h_FE binning range of 120 to 240 at V_CE = 6 V and I_C = 2 mA. This classification is verified per Toshiba's production test and ensures predictable DC bias behavior in amplifier circuits without requiring manual transistor sorting. The 2SC4207-Y(TE85L,F) does not share h_FE ranges with GR or BL variants.

Is 2SC4207-Y(TE85L,F) pin-compatible with other Toshiba dual-transistor packages?

No - 2SC4207-Y(TE85L,F) uses the proprietary 2-3L1A package with six terminals (E1/B1/C1/E2/B2/C2) in a specific top-view layout. It is not pin-compatible with 2SC5366 (2-7J1A) or 2SC4116 (2-7J2A), which differ in lead count, spacing, and terminal order. Always verify mechanical drawings before PCB layout.

Does 2SC4207-Y(TE85L,F) support surface-mount reflow assembly?

Yes - 2SC4207-Y(TE85L,F) is qualified for standard lead-free reflow soldering per JEDEC J-STD-020. Its 2-3L1A package has defined thermal mass and pad layout compatible with IPC-7351B footprint guidelines. Peak reflow temperature must not exceed 260°C for ≤10 seconds to maintain junction integrity.

What is the maximum safe operating collector current for 2SC4207-Y(TE85L,F)?

The absolute maximum collector current for 2SC4207-Y(TE85L,F) is 150 mA per transistor (Q1 or Q2), as specified in Toshiba's Absolute Maximum Ratings table. Continuous operation above 100 mA requires derating based on ambient temperature and PCB copper area; at 25°C, full 150 mA is permitted only if total dissipation remains ≤300 mW and T_j stays ≤150°C.

How does the h_FE linearity of 2SC4207-Y(TE85L,F) impact audio performance?

The h_FE linearity ratio of 0.95 (typ.) - calculated as h_FE at 0.1 mA divided by h_FE at 2 mA - indicates minimal gain variation across small-signal operating currents. In 2SC4207-Y(TE85L,F) audio preamp applications, this directly reduces harmonic and intermodulation distortion, especially near signal zero-crossings where bias current shifts most.

2SC4207-Y(TE85L,F) Specifications

Product attributes: Attribute value

Manufacturer:: Toshiba Semiconductor and Storage

Series:: -

Package/Case:: SC-74A, SOT-753

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: 2 NPN (Dual) Matched Pair, Common Emitter

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

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

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

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 120 @ 2mA, 6V

Power - Max:: 300mW

Frequency - Transition:: 80MHz

Operating Temperature:: 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SMV

2SC4207-Y(TE85L,F) FAQ

1.How can I place an order for 2SC4207-Y(TE85L,F) through Aetrix?

Please submit a Request for Quotation (RFQ) for 2SC4207-Y(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 2SC4207-Y(TE85L,F) reliable?

The price and inventory of 2SC4207-Y(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 2SC4207-Y(TE85L,F) is usually 5 days.

3.What payment methods are accepted for 2SC4207-Y(TE85L,F)?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SC4207-Y(TE85L,F) transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2SC4207-Y(TE85L,F)?

2SC4207-Y(TE85L,F) orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2SC4207-Y(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 2SC4207-Y(TE85L,F)?

For technical support, including 2SC4207-Y(TE85L,F) datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SC4207-Y(TE85L,F) requirements.

6.How does Aetrix verify that 2SC4207-Y(TE85L,F) is sourced from the original manufacturer or authorized distributors?

All 2SC4207-Y(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 2SC4207-Y(TE85L,F) meets industry standards.

7.What is the process for return or replacement of 2SC4207-Y(TE85L,F)?

All 2SC4207-Y(TE85L,F) units undergo pre-shipment inspection (PSI). If there is an issue with 2SC4207-Y(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 2SC4207-Y(TE85L,F) part is unused and in its original packaging.

Return procedure for 2SC4207-Y(TE85L,F):

1.Submit a request within 90 days.

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

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