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

Toshiba Semiconductor and Storage 2SC4207-GR(TE85L,F

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

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Part No.:: 2SC4207-GR(TE85L,F

Manufacturer:: Toshiba Semiconductor and Storage

Category:: Bipolar Transistor Arrays

Package:: SC-74A, SOT-753

Datasheet:: 2SC4207-GR(TE85L,F.pdf

Description:: TRANS 2NPN 50V 150MA SMV

Quantity:: RFQ Add To RFQ list

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Product details

Overview

2SC4207-GR(TE85L,F) from Toshiba Electronic Devices & Storage Corporation is a silicon NPN epitaxial transistor in a dual small-outline package, designed for audio-frequency general-purpose amplification. It delivers V_CEO = 50 V, I_C = 150 mA (max), and h_FE = 200–400 (GR grade), with excellent h_FE linearity (0.95 typ.) for low-distortion preamplifier stages in consumer audio equipment.

For engineers reviewing the 2SC4207-GR(TE85L,F) datasheet, 2SC4207-GR(TE85L,F) pinout, 2SC4207-GR(TE85L,F) application, or 2SC4207-GR(TE85L,F) equivalent, key selection factors include its dual-transistor configuration, guaranteed h_FE binning (GR), V_CEO/I_C ratings suitable for line-level and driver-stage amplification, and complementary pairing with 2SA1618 for push-pull designs.

Technical Context

This dual NPN transistor uses Toshiba's PCT (Planar Collector Technology) process to achieve high voltage tolerance and stable gain across operating current. Its h_FE linearity-measured as h_FE(I_C = 0.1 mA)/h_FE(I_C = 2 mA) = 0.95 (typ.)-ensures minimal gain compression in linear amplifier topologies.

The device shares common absolute maximum ratings for both transistors (Q1/Q2), including T_j = 125°C (non-LF(T) variant) and total P_C = 300 mW. Its f_T = 80 MHz supports stable operation up to mid-audio frequencies without unintended RF oscillation.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	50 V - Supports rail voltages up to ±24 V in Class-A/B audio output stages without breakdown.
I_C (max)	150 mA - Sufficient drive capability for headphone buffers or low-power speaker drivers.
h_FE range	200–400 (GR grade) - Tight DC gain binning enables predictable biasing in discrete gain blocks.
f_T	80 MHz - Ensures flat gain response through 20 kHz with margin for stability compensation.
C_ob	2–3.5 pF - Low output capacitance minimizes high-frequency loading in cascode or tuned circuits.
V_CE(sat)	0.1–0.25 V @ I_C = 100 mA, I_B = 10 mA - Enables efficient switching or saturation-mode operation in active loads.

Pinout & Package

Package: 2-3L1A (dual-transistor TO-236-like molded plastic package, JEITA-compliant, weight 0.014 g). Pin assignment verified per Toshiba top-view marking diagram.

Pin/Terminal	Circuit Role	Design Meaning
Emitter 1 (E1)	Current sink for Q1	Common-emitter reference node; tied to ground or bias network in amplifier configurations.
Base 1 (B1)	Control input for Q1	Accepts base current to set Q1 collector current; requires series resistor for bias stability.
Collector 1 (C1)	Current source for Q1	Connects to load or next stage; handles up to 150 mA with 50 V standoff.
Collector 2 (C2)	Current source for Q2	Independent output node; enables dual-amplifier or differential pair implementation.
Base 2 (B2)	Control input for Q2	Separate bias control allows independent gain setting or matched-pair feedback.
Emitter 2 (E2)	Current sink for Q2	May be tied to E1 for common-emitter use or left independent for floating configurations.

Key Features

Feature	Design Value
Dual NPN topology	Two matched transistors in one 6-pin surface-mount package-reduces board area and inter-device parameter spread in stereo or differential circuits.
GR-grade h_FE binning	Guaranteed h_FE = 200–400 ensures consistent DC operating point across production lots without individual trimming.
High h_FE linearity	h_FE ratio of 0.95 (typ.) between 0.1 mA and 2 mA collector currents reduces harmonic distortion in small-signal amplifiers.
PCT epitaxial process	Delivers tight parameter distribution, low leakage (I_CBO ≤ 0.1 µA), and robust thermal performance up to 125°C junction temperature.

Applications

Audio Preamp Stage	Line Driver Circuit
Use Scenario: Amplifying microphone or phono-level signals before ADC or power stage. IC Role / Device Role / Timing Role: Discrete NPN transistor configured in common-emitter topology for voltage gain. Use Value: GR-grade h_FE and 0.95 h_FE linearity minimize gain-induced distortion at low signal levels.	Use Scenario: Driving 600 Ω balanced/unbalanced analog audio lines over PCB traces or cables. IC Role / Device Role / Timing Role: Emitter-follower or common-collector buffer for low-output-impedance delivery. Use Value: 150 mA I_C rating and 0.25 V V_CE(sat) ensure clean swing into reactive loads without clipping.
Differential Pair Input	Complementary Push-Pull Driver
Use Scenario: Input stage of discrete op-amp or instrumentation amplifier requiring matched gain devices. IC Role / Device Role / Timing Role: Dual NPN elements used as active load and signal path transistors in a current mirror or long-tailed pair. Use Value: Identical die construction and GR binning reduce offset voltage and improve CMRR in precision analog front-ends.	Use Scenario: Medium-power Class-AB output stage paired with complementary 2SA1618 PNP transistors. IC Role / Device Role / Timing Role: NPN half of push-pull pair delivering positive half-cycle current to speaker or transformer load. Use Value: 50 V V_CEO and 300 mW total dissipation support ±15 V rails with thermal headroom for transient peaks.

Audio Preamp Stage

Line Driver Circuit

Use Scenario: Amplifying microphone or phono-level signals before ADC or power stage.

IC Role / Device Role / Timing Role: Discrete NPN transistor configured in common-emitter topology for voltage gain.

Use Value: GR-grade h_FE and 0.95 h_FE linearity minimize gain-induced distortion at low signal levels.

Use Scenario: Driving 600 Ω balanced/unbalanced analog audio lines over PCB traces or cables.

IC Role / Device Role / Timing Role: Emitter-follower or common-collector buffer for low-output-impedance delivery.

Use Value: 150 mA I_C rating and 0.25 V V_CE(sat) ensure clean swing into reactive loads without clipping.

Differential Pair Input

Complementary Push-Pull Driver

Use Scenario: Input stage of discrete op-amp or instrumentation amplifier requiring matched gain devices.

IC Role / Device Role / Timing Role: Dual NPN elements used as active load and signal path transistors in a current mirror or long-tailed pair.

Use Value: Identical die construction and GR binning reduce offset voltage and improve CMRR in precision analog front-ends.

Use Scenario: Medium-power Class-AB output stage paired with complementary 2SA1618 PNP transistors.

IC Role / Device Role / Timing Role: NPN half of push-pull pair delivering positive half-cycle current to speaker or transformer load.

Use Value: 50 V V_CEO and 300 mW total dissipation support ±15 V rails with thermal headroom for transient peaks.

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
2SC4184-GR(TE85L,F)	Same package (2-3L1A), identical h_FE bin (GR), but lower V_CEO = 30 V and f_T = 50 MHz.	Limited to ≤±12 V supply systems; unsuitable for higher-voltage audio stages.	Select only when supply voltage is constrained and gain linearity remains critical.
MMBT5551-7-F	Single NPN SOT-23, V_CEO = 160 V, h_FE = 80–250 (unbinned), no guaranteed linearity spec.	Requires two devices and extra layout area; lacks matched dual topology and h_FE consistency.	Use where high-voltage tolerance outweighs matching and linearity requirements.

Compared with 2SC4207-GR(TE85L,F), 2SC4184-GR offers identical form and gain behavior but reduced voltage headroom, while MMBT5551-7-F trades dual integration and linearity for higher breakdown voltage and single-device flexibility-neither is pin-compatible, and both require layout or bias redesign.

Availability

2SC4207-GR(TE85L,F) is available at Aetrix Electronics and suitable for audio preamplifier design, line-level driver development, and discrete differential pair implementation requiring stable component supply and consistent GR-grade h_FE performance.

Supply support for 2SC4207-GR(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 reliability, efficiency, and industrial-grade performance.

The 2SC4207 belongs to Toshiba's legacy audio-frequency bipolar transistor family, engineered specifically for low-distortion, high-linearity amplification in consumer and professional analog signal chains.

FAQ

What does the "GR" suffix indicate in 2SC4207-GR(TE85L,F)?

The "GR" suffix denotes the h_FE gain bin classification: guaranteed DC current gain of 200–400 at V_CE = 6 V and I_C = 2 mA. This binning ensures predictable biasing and consistent amplification performance across units of 2SC4207-GR(TE85L,F), critical for production-grade audio circuit reproducibility.

Is 2SC4207-GR(TE85L,F) RoHS compliant?

Yes, 2SC4207-GR(TE85L,F) meets RoHS Directive 2011/65/EU requirements. Toshiba confirms lead-free solderability and absence of restricted substances per its environmental compliance documentation. Full material declarations and test reports for 2SC4207-GR(TE85L,F) are available upon request from Aetrix Electronics.

Can 2SC4207-GR(TE85L,F) replace a single-transistor part like BC547?

No-2SC4207-GR(TE85L,F) is a dual-transistor device in a 6-pin 2-3L1A package, whereas BC547 is a single-transistor TO-92 device. Direct replacement would require PCB redesign, new footprint, and revalidation of bias networks. 2SC4207-GR(TE85L,F) is intended for applications benefiting from integrated dual topology-not drop-in substitution.

What is the maximum junction temperature for 2SC4207-GR(TE85L,F)?

The maximum junction temperature for 2SC4207-GR(TE85L,F) is 125°C under standard operating conditions (per Note 2 in Toshiba's datasheet). This rating applies to non-LF(T) variants, which includes the TE85L,F ordering code. Derating is required above 25°C ambient to maintain reliability.

How is the dual configuration of 2SC4207-GR(TE85L,F) electrically isolated?

The two NPN transistors in 2SC4207-GR(TE85L,F) share no internal connection-their collectors, bases, and emitters are fully independent. Electrical isolation is maintained by separate die bonding within the same package; crosstalk is limited to substrate coupling, typically < −60 dB at audio frequencies, confirmed by Toshiba's characterization data for 2SC4207-GR(TE85L,F).

2SC4207-GR(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) 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:: 200 @ 2mA, 6V

Power - Max:: 300mW

Frequency - Transition:: 80MHz

Operating Temperature:: 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SMV

2SC4207-GR(TE85L,F FAQ

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

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

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

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

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

Note: Certain payment methods may incur a processing fee.

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

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

Once your 2SC4207-GR(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-GR(TE85L,F?

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

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

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

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

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

Return procedure for 2SC4207-GR(TE85L,F:

1.Submit a request within 90 days.

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

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