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Toshiba Semiconductor and Storage 2SC2712-BL,LF
- Part No.:
- 2SC2712-BL,LF
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
2SC2712-BL,LF.pdf
- Description:
- TRANS NPN 50V 0.15A S-MINI
- Quantity:
- Payment:
- Shipping:
Inventory:2,335
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Product details
Overview
2SC2712-BL,LF from Toshiba Electronic Devices & Storage Corporation is a silicon NPN epitaxial bipolar transistor designed for low-frequency and audio-frequency amplification. It delivers VCEO = 50 V, IC(max) = 150 mA, hFE = 350–700 (BL grade), NF = 1 dB (typ.), and operates in S-Mini package. It serves as a general-purpose amplifier in AM radio front-ends and portable audio preamplifier stages.
For engineers reviewing the 2SC2712-BL,LF datasheet, 2SC2712-BL,LF pinout, 2SC2712-BL,LF application, or 2SC2712-BL,LF equivalent, key selection criteria include hFE linearity (0.95 typ.), low-noise performance at 1 kHz, AEC-Q101 qualification for automotive-grade reliability, and S-Mini footprint compatibility with space-constrained analog signal paths.
Technical Context
This transistor employs epitaxial base construction to achieve high hFE linearity and low noise across its operating range. Its DC current gain spans 350–700 at VCE = 6 V, IC = 2 mA, and maintains stable fT ≥ 80 MHz (typ.) while supporting collector currents up to 150 mA under continuous DC conditions.
The device meets AEC-Q101 stress test requirements for automotive applications and exhibits robust thermal performance with Tj(max) = 150 °C. Its S-Mini package (12 mg typ. weight) supports surface-mount assembly on FR4 boards with defined thermal derating per PC–Ta curves.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Supports rail voltages up to ±24 V in single-supply audio stages without saturation risk. |
| IC(max) | 150 mA - Enables driver-stage operation into 32 Ω headphones or low-Z speaker loads. |
| hFE Range | 350–700 (BL grade) - Ensures consistent bias stability across production batches in linear amplifier designs. |
| NF | 1 dB (typ.) at 1 kHz, RG = 10 kΩ - Minimizes audible hiss in microphone preamp and line-level gain blocks. |
| fT | ≥80 MHz (typ.) - Maintains adequate gain margin beyond audio band, supporting wideband feedback stability. |
| VCBO | 60 V - Provides headroom for transient voltage spikes in unregulated power supply interfaces. |
| Cob | 3.5 pF (max.) at VCB = 10 V - Limits Miller capacitance impact on high-frequency roll-off in common-emitter configurations. |
Pinout & Package
S-Mini package: ultra-compact surface-mount plastic package (12 mg typ. weight), lead-free (LF) finish, JEDEC-compliant footprint with 0.95 mm pitch. Dimensions per Toshiba spec Rev.8.0.A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Current-controlled input node; requires series resistor for stable biasing in Class-A amplifiers. |
| 2 | Emitter | Common reference terminal; connects to ground or emitter degeneration resistor for linearity control. |
| 3 | Collector | Output current sink; routes amplified signal to load or next stage via collector resistor or transformer coupling. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive ambient temperature cycling, humidity, and mechanical shock per JESD22 standards. |
| High hFE linearity | hFE(IC=0.1 mA)/hFE(IC=2 mA) = 0.95 (typ.) - Reduces harmonic distortion in small-signal amplification. |
| Low noise figure | NF = 1 dB (typ.) at 1 kHz - Critical for preserving SNR in battery-powered audio front-ends. |
| Complementary pairing | Matched with 2SA1162 PNP for push-pull output stages and differential amplifier inputs. |
Applications
| AM Radio Front-End Amplifier | Portable Audio Preamp |
|---|---|
Use Scenario: Signal amplification of 530–1710 kHz AM carrier before envelope detection in compact receivers. IC Role / Device Role / Timing Role: NPN small-signal amplifier in common-emitter configuration with tuned LC collector load. Use Value: High hFE and low NF preserve weak-signal sensitivity; VCEO = 50 V accommodates variable AGC voltage swings. | Use Scenario: First-stage gain block for electret microphone signals in Bluetooth earbuds or voice recorders. IC Role / Device Role / Timing Role: Low-noise voltage amplifier with emitter degeneration for DC bias stability. Use Value: 1 dB NF minimizes self-noise floor; S-Mini footprint enables integration near MEMS mic elements. |
| Automotive Cabin Audio Mixer | Industrial Sensor Signal Conditioning |
Use Scenario: Summing and buffering multiple audio sources (USB, AUX, Bluetooth) in vehicle infotainment head units. IC Role / Device Role / Timing Role: Linear gain stage with AEC-Q101 reliability for extended temperature operation (−40°C to +125°C). Use Value: Qualified automotive grade ensures uninterrupted function during thermal cycling; hFE consistency simplifies calibration. | Use Scenario: Amplifying low-level mV-range outputs from thermocouples or strain gauges in PLC I/O modules. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with low input bias current and stable hFE over temperature. Use Value: Excellent hFE linearity reduces gain error across 0–100°C ambient range; low Cob avoids capacitive loading on sensor lines. |
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 |
|---|---|---|---|
| 2SC2712-Y,LF | hFE = 120–240 (lower gain range); identical package, pinout, and AEC-Q101 rating. | Better suited for medium-gain, high-linearity feedback loops where tighter hFE distribution reduces compensation complexity. | Select when design prioritizes hFE uniformity over maximum gain, especially in production-critical analog filters. |
| MPSA18,LF | VCEO = 45 V (5 V lower); hFE = 100–300; not AEC-Q101 qualified; TO-92 package (larger footprint). | Limited to non-automotive consumer electronics; unsuitable for automotive ambient or space-constrained PCBs. | Choose only for cost-sensitive, non-automotive prototypes where S-Mini footprint is not required and 45 V rating suffices. |
Compared with 2SC2712-Y,LF and MPSA18,LF, the 2SC2712-BL,LF uniquely combines highest hFE range (350–700), AEC-Q101 qualification, and S-Mini packaging-making it optimal for miniaturized, automotive-grade audio amplification where gain headroom and reliability are jointly critical.
Availability
2SC2712-BL,LF is available at Aetrix Electronics and suitable for AM radio front-ends, portable audio preamplifiers, and automotive cabin audio systems requiring stable component supply across long-lifecycle industrial programs.
Supply support for 2SC2712-BL,LF 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 automotive-grade compliance.
The 2SC2712-BL,LF belongs to Toshiba's legacy S-Mini bipolar transistor family, engineered specifically for low-noise, high-linearity analog signal amplification in space-constrained and thermally demanding environments.
FAQ
What is the hFE classification for 2SC2712-BL,LF?
The "BL" suffix denotes hFE = 350–700 at VCE = 6 V and IC = 2 mA, per Toshiba's official specification Rev.8.0.A. This high-gain bin enables stable biasing in low-current amplifier topologies without external gain-setting resistors, and is verified by production test screening-not typical-only data.
Is 2SC2712-BL,LF qualified for automotive applications?
Yes, 2SC2712-BL,LF is explicitly AEC-Q101 qualified, as confirmed in Toshiba's orderable part number table (Rev.8.0.A). It undergoes stress testing for temperature cycling, humidity, and mechanical shock per JESD22 standards, making it suitable for cabin audio and body-control modules within automotive ECUs.
What is the pin configuration of 2SC2712-BL,LF in the S-Mini package?
2SC2712-BL,LF uses standard S-Mini pinout: Pin 1 = Base, Pin 2 = Emitter, Pin 3 = Collector. This matches Toshiba's official package drawing and is consistent across all 2SC2712 variants including 2SC2712-BL,LF, 2SC2712-Y,LF, and 2SC2712-O,LF.
How does the noise figure of 2SC2712-BL,LF compare to other small-signal transistors?
2SC2712-BL,LF achieves NF = 1 dB (typ.) at 1 kHz with RG = 10 kΩ, which is among the lowest in its VCEO/IC class. This outperforms standard MPSA18 (NF ≈ 5 dB) and matches high-linearity transistors like BC549C, enabling cleaner audio signal chains without additional noise-reduction circuitry.
Can 2SC2712-BL,LF be used as a direct replacement for 2SC2712-GR,LF?
No-while both share the same S-Mini package and AEC-Q101 rating, 2SC2712-BL,LF has hFE = 350–700 versus 2SC2712-GR,LF's hFE = 200–400. Substituting without circuit re-biasing may cause saturation or reduced gain margin; verify operating point using VCE(sat) and hFE curves from the 2SC2712-BL,LF datasheet.
2SC2712-BL,LF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 150 mW
- Frequency - Transition:
- 80MHz
- Operating Temperature:
- 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- S-Mini
2SC2712-BL,LF FAQ
1.How can I place an order for 2SC2712-BL,LF through Aetrix?
Please submit a Request for Quotation (RFQ) for 2SC2712-BL,LF 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 2SC2712-BL,LF reliable?
The price and inventory of 2SC2712-BL,LF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SC2712-BL,LF is usually 5 days.
3.What payment methods are accepted for 2SC2712-BL,LF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SC2712-BL,LF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 2SC2712-BL,LF?
2SC2712-BL,LF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 2SC2712-BL,LF 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 2SC2712-BL,LF?
For technical support, including 2SC2712-BL,LF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SC2712-BL,LF requirements.
6.How does Aetrix verify that 2SC2712-BL,LF is sourced from the original manufacturer or authorized distributors?
All 2SC2712-BL,LF 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 2SC2712-BL,LF meets industry standards.
7.What is the process for return or replacement of 2SC2712-BL,LF?
All 2SC2712-BL,LF units undergo pre-shipment inspection (PSI). If there is an issue with 2SC2712-BL,LF, 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 2SC2712-BL,LF part is unused and in its original packaging.
Return procedure for 2SC2712-BL,LF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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