My Inquiry
My Account
onsemi KSC2310YNBU
- Part No.:
- KSC2310YNBU
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-226-3, TO-92-3 Long Body
- Datasheet:
-
KSC2310YNBU.pdf
- Description:
- TRANS NPN 150V 0.05A TO-92-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,152
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
KSC2310YNBU from ON Semiconductor (formerly Fairchild) is an NPN epitaxial silicon transistor designed for high-voltage power amplifier and switching applications, featuring VCBO = 200 V, VCEO = 150 V, IC = 50 mA, fT = 100 MHz, and hFE = 120–240 (Y-class), commonly used in horizontal deflection circuits and CRT monitor output stages.
For engineers reviewing the KSC2310YNBU datasheet, pinout, applications, or equivalent options, key selection criteria include breakdown voltage margin, DC current gain consistency at 10 mA, saturation voltage under 1 mA base drive, safe operating area at elevated ambient temperatures, and TO-92L package thermal derating behavior.
Technical Context
This transistor employs an epitaxial base structure optimized for high-voltage operation and stable gain across temperature. Its 200 V collector-base rating enables use in flyback and line-output switching topologies where voltage transients exceed 150 V.
The Y-class hFE bin (120–240 at VCE = 5 V, IC = 10 mA) ensures predictable current amplification in linear amplifier stages, while the 100 MHz fT supports signal amplification up to low-VHF frequencies with minimal phase shift.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCBO | 200 V - Withstands 200 V reverse bias between collector and base, enabling use in high-voltage switching nodes without avalanche stress. |
| VCEO | 150 V - Maximum collector-emitter voltage before breakdown under open-base condition; defines safe operating ceiling in amplifier saturation. |
| hFE (Y-class) | 120–240 - Confirmed DC current gain range at VCE = 5 V, IC = 10 mA; supports consistent biasing in Class-A/B amplifier designs. |
| fT | 100 MHz - Current gain bandwidth product measured at VCE = 30 V, IC = 10 mA; validates suitability for RF driver and video amplifier stages. |
| VCE(sat) | 0.5 V max - Collector-emitter saturation voltage at IC = 10 mA, IB = 1 mA; ensures low conduction loss in switching applications. |
| Cob | 3.5–5 pF - Output capacitance at VCB = 10 V, f = 1 MHz; impacts high-frequency stability and switching speed in tuned circuits. |
Pinout & Package
Package: TO-92L - 3-lead through-hole plastic package with 2.54 mm lead pitch, 13.5 mm body length, and 1.7 mm width; optimized for vertical mounting and heat dissipation in compact power stages.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Current sink terminal | Connected to ground or low-impedance return path; determines emitter-follower configuration and bias network reference. |
| 2 (Collector) | High-voltage output node | Interfaces with load, transformer primary, or supply rail; must withstand 150 V transient spikes in horizontal deflection applications. |
| 3 (Base) | Control input | Receives current-limited drive signal; requires ≥1 mA for full saturation in switching mode per datasheet test condition. |
Key Features
| Feature | Design Value |
|---|---|
| High VCBO rating | 200 V - Enables reliable operation in CRT horizontal output stages where collector swings exceed 120 V peak-to-peak. |
| Y-class hFE binning | 120–240 - Reduces unit-to-unit gain variation in production amplifier modules, minimizing need for post-assembly gain trimming. |
| 100 MHz fT | Validated at VCE = 30 V, IC = 10 mA - Supports stable small-signal amplification up to 30 MHz with ≤3 dB gain roll-off. |
| Low VCE(sat) | ≤0.5 V at IC = 10 mA, IB = 1 mA - Limits power dissipation to <5 mW in saturated switching, improving efficiency in pulse-width modulated drivers. |
Applications
| Horizontal Deflection Amplifier | Video Output Driver |
|---|---|
Use Scenario: Driving horizontal deflection yoke in CRT monitors and TVs, handling repetitive 15.734 kHz sawtooth current waveforms with 150 V collector swing. IC Role / Device Role / Timing Role: NPN switching amplifier operating in Class-C or quasi-saturated mode, providing high peak current into inductive load. Use Value: 200 V VCBO prevents breakdown during flyback recovery; 100 MHz fT ensures faithful reproduction of sharp leading edges in retrace pulses. | Use Scenario: Final-stage amplification of composite video signals prior to RGB or YUV output buffers in analog display systems. IC Role / Device Role / Timing Role: Linear Class-A/B amplifier biased at IC ≈ 5–10 mA, delivering 1–2 Vpp into 75 Ω loads. Use Value: Y-class hFE (120–240) maintains consistent gain across units; low Cob (≤5 pF) preserves high-frequency response beyond 5 MHz. |
| DC-DC Converter Switch | Audio Pre-amplifier Stage |
Use Scenario: Low-power isolated flyback converter primary-side switch in auxiliary power supplies (<5 W), operating at 50–100 kHz. IC Role / Device Role / Timing Role: Saturated switch controlling energy transfer to transformer primary; driven by PWM controller with base current limiting. Use Value: VCE(sat) ≤ 0.5 V minimizes conduction loss; 150 °C junction rating allows operation in enclosed enclosures without forced cooling. | Use Scenario: First gain stage in low-noise audio preamplifiers for microphone or phono inputs, requiring stable DC bias and low distortion. IC Role / Device Role / Timing Role: Common-emitter amplifier biased at IC = 1–2 mA, VCE = 6–12 V, with emitter degeneration resistor. Use Value: High hFE (≥120) reduces required base drive current; low ICBO (≤0.1 µA) prevents thermal runaway at elevated ambient temperatures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN high-voltage amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| KSC2383YTA | Same TO-92L package; VCBO = 200 V, VCEO = 160 V, hFE = 120–240, fT = 100 MHz - identical electrical specs except +10 V higher VCEO. | Suitable for same CRT deflection and video driver roles; marginally improved headroom in high-voltage transient conditions. | Select KSC2383YTA when VCEO > 150 V is required for long-term reliability in high-slew-rate circuits. |
| MPSA42 | TO-92 package; VCBO = 300 V, VCEO = 300 V, hFE = 40–250 (unbinned), fT = 50 MHz - higher voltage rating but lower bandwidth and wider hFE spread. | Better suited for general-purpose high-voltage switching (e.g., relay drivers), less ideal for video-frequency amplification due to 50 MHz fT limit. | Choose MPSA42 only when absolute VCBO > 200 V is mandatory and bandwidth < 50 MHz is acceptable. |
Compared with KSC2310YNBU, KSC2383YTA offers identical performance with enhanced VCEO margin, while MPSA42 trades bandwidth and hFE consistency for higher absolute voltage capability-making KSC2310YNBU optimal for cost-sensitive, frequency-critical CRT and video applications.
Availability
KSC2310YNBU is available at Aetrix Electronics and suitable for CRT display systems, analog video signal chains, and low-power flyback converters requiring stable component supply, consistent Y-class hFE binning, and proven TO-92L thermal performance.
Supply support for KSC2310YNBU 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
ON Semiconductor (acquired Fairchild Semiconductor in 2016) is a global supplier of energy-efficient semiconductor components for automotive, industrial, cloud computing, and consumer electronics.
The KSC2310YNBU belongs to Fairchild's legacy high-voltage bipolar transistor family, engineered specifically for horizontal deflection and analog video amplification in CRT-based display systems.
FAQ
What is the hFE classification for KSC2310YNBU?
The KSC2310YNBU is Y-class binned, with confirmed DC current gain (hFE) ranging from 120 to 240 when measured at VCE = 5 V and IC = 10 mA. This tighter gain spread improves predictability in amplifier bias design and reduces calibration effort in production CRT monitor assemblies using the KSC2310YNBU.
Is KSC2310YNBU suitable for switching applications?
Yes, KSC2310YNBU supports switching operation with VCE(sat) ≤ 0.5 V at IC = 10 mA and IB = 1 mA, and a maximum collector current of 50 mA. Its 200 V VCBO and 150 V VCEO ratings allow reliable use in low-frequency (<100 kHz) flyback and deflection switching circuits where the KSC2310YNBU remains within its safe operating area.
What package type does KSC2310YNBU use?
KSC2310YNBU uses the TO-92L package - a 3-lead through-hole variant with 2.54 mm lead spacing, 13.5 mm body length, and 1.7 mm width. Pinout is Emitter (1), Collector (2), Base (3), and the package is rated for 800 mW power dissipation at 25 °C ambient, with linear derating above that temperature.
How does KSC2310YNBU compare to standard KSC2310 variants?
The "YNBU" suffix denotes Y-class hFE (120–240) and TO-92L packaging, distinguishing it from R-class (40–80) or O-class (70–140) versions and non-L variants. All KSC2310 variants share identical absolute maximum ratings and electrical characteristics, but only the KSC2310YNBU guarantees the high-gain Y bin and the longer TO-92L body for improved mechanical stability in vertical-mount applications.
Can KSC2310YNBU replace MPSA42 in high-voltage circuits?
KSC2310YNBU is not a direct replacement for MPSA42 due to lower VCBO (200 V vs. 300 V) and higher fT (100 MHz vs. 50 MHz). While both are NPN transistors in TO-92 packages, the KSC2310YNBU should only be substituted where circuit voltage stress stays below 200 V and bandwidth requirements exceed 50 MHz - otherwise, the MPSA42 remains necessary for higher-voltage robustness, and the KSC2310YNBU retains advantage in frequency-critical roles.
KSC2310YNBU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-226-3, TO-92-3 Long Body
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 50 mA
- Voltage - Collector Emitter Breakdown (Max):
- 150 V
- Vce Saturation (Max) @ Ib, Ic:
- 500mV @ 1mA, 10mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 120 @ 10mA, 5V
- Power - Max:
- 800 mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-92-3
KSC2310YNBU FAQ
1.How can I place an order for KSC2310YNBU through Aetrix?
Please submit a Request for Quotation (RFQ) for KSC2310YNBU 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 KSC2310YNBU reliable?
The price and inventory of KSC2310YNBU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KSC2310YNBU is usually 5 days.
3.What payment methods are accepted for KSC2310YNBU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KSC2310YNBU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KSC2310YNBU?
KSC2310YNBU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KSC2310YNBU 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 KSC2310YNBU?
For technical support, including KSC2310YNBU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KSC2310YNBU requirements.
6.How does Aetrix verify that KSC2310YNBU is sourced from the original manufacturer or authorized distributors?
All KSC2310YNBU 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 KSC2310YNBU meets industry standards.
7.What is the process for return or replacement of KSC2310YNBU?
All KSC2310YNBU units undergo pre-shipment inspection (PSI). If there is an issue with KSC2310YNBU, 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 KSC2310YNBU part is unused and in its original packaging.
Return procedure for KSC2310YNBU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
KSC2310YNBU Tags
-
MMBT3906LT1G
onsemi
-
MMBT3904-7-F
Diodes Incorporated
-
MMBT3904LT1G
onsemi
-
MMBT3906-7-F
Diodes Incorporated
-
MMBT3904-TP
Micro Commercial Co
-
MMBT2222A-7-F
Diodes Incorporated
-
BC846BLT1G
onsemi
-
BC847B,215
Nexperia USA Inc.
-
SMMBT3904LT1G
onsemi
-
MMBT2222A-TP
Micro Commercial Co
-
MMBTA06LT1G
onsemi
-
MMBT2222ALT1G
onsemi
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
