onsemi 2SC6091
- Part No.:
- 2SC6091
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-3P-3 Full Pack
- Datasheet:
-
2SC6091.pdf
- Description:
- TRANS NPN 700V 8A TO-3PMLH
- Quantity:
- Payment:

- Shipping:

Inventory:63,800
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
2SC6091 from SANYO Semiconductor is an NPN triple-diffused planar silicon transistor designed for horizontal deflection output in color TV systems, featuring VCBO=1500 V, VCEO=700 V, IC=8 A (DC), PC=65 W at Tc=25°C, and tf=0.2 µs under specified switching conditions.
For engineers reviewing the 2SC6091 datasheet, pinout, applications, or equivalent options, key selection criteria include high-voltage sustain capability (VCEO(sus)=700 V), fast fall time (tf=0.2 µs), low VCE(sat)1=0.1–0.3 V at IC=2.25 A/IB=0.45 A, and TO-3PMLH package thermal performance up to 65 W at case temperature.
Technical Context
The 2SC6091 employs SANYO's HVP (High Voltage Process) and MBIT (Mesa Base Injection Transistor) technologies to achieve robust high-voltage blocking and stable switching in horizontal deflection circuits. Its triple-diffused planar structure ensures controlled carrier distribution and reduced secondary breakdown risk.
Designed specifically for flyback transformer drive in CRT TV horizontal output stages, it operates with base-driven switching (IB1/IB2 control), supports pulse currents up to ICP=20 A, and maintains VCE(sat)2 ≤ 2 V at IC=4.5 A/IB=0.9 A - critical for minimizing conduction loss during retrace intervals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCBO | 1500 V - Enables safe operation with high-voltage flyback spikes in CRT horizontal deflection circuits. |
| VCEO(sus) | 700 V - Sustains full horizontal retrace voltage without avalanche or breakdown under zero-bias conditions. |
| IC (DC) | 8 A - Supports continuous horizontal scan current in standard 21–32 inch color TV designs. |
| tf | 0.2 µs - Ensures rapid turn-off to minimize switching loss and prevent transformer core saturation during retrace. |
| VCE(sat)1 | 0.1–0.3 V @ IC=2.25 A/IB=0.45 A - Reduces conduction loss and junction heating during active scan period. |
| PC @ Tc=25°C | 65 W - Delivers high power handling in TO-3PMLH package with external heatsink mounting. |
| hFE2 | 5.3–7.5 @ VCE=5 V/IC=5 A - Provides predictable base drive requirements for stable gain-controlled switching. |
Pinout & Package
Package: TO-3PMLH (SANYO designation), metal-can isolated tab, vertical mounting, screw-hole compatible, thermally optimized for high-power dissipation with heatsink interface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Base) | Control input terminal | Receives base drive current (IB1/IB2) to switch collector current; requires low-impedance driver for fast edge control. |
| 2 (Collector) | High-voltage power output | Connected to flyback transformer primary; rated for 1500 V reverse bias and 65 W dissipation at case. |
| 3 (Emitter) | Power return / reference node | Common emitter configuration; tied to ground or low-side shunt; carries full load current (up to 8 A DC). |
Key Features
| Feature | Design Value |
|---|---|
| HVP process integration | Enables reliable 1500 V VCBO rating with controlled depletion layer extension and reduced leakage (ICBO ≤ 10 µA @ VCB=800 V). |
| MBIT structure | Improves base injection efficiency and current gain linearity at high IC, supporting stable hFE2=5.3–7.5 up to 5 A. |
| Fast fall time (tf) | 0.2 µs @ IC=3 A/IB1=0.6 A/IB2=−1.2 A - minimizes overlap loss and enables >15.7 kHz horizontal scanning without thermal runaway. |
| High pulse current rating | ICP=20 A - accommodates transient surge during flyback reset and CRT beam retrace without second breakdown. |
Applications
| Color TV Horizontal Deflection | Monitor Horizontal Output Stage |
|---|---|
Use Scenario: Driving flyback transformer primary in analog CRT-based color television sets operating at 15.734 kHz horizontal frequency. IC Role / Device Role / Timing Role: Main switching transistor in self-oscillating or synchronized horizontal output stage; conducts during trace, blocks during retrace. Use Value: 700 V VCEO(sus) sustains retrace voltage; 0.2 µs tf ensures clean turn-off and prevents transformer saturation. | Use Scenario: High-voltage horizontal deflection in professional/commercial CRT monitors with extended brightness and resolution requirements. IC Role / Device Role / Timing Role: Primary power switch controlling energy transfer to linearity correction and EHT generation circuits. Use Value: 65 W PC rating at Tc=25°C supports sustained high-brightness operation; TO-3PMLH package enables mechanical stability under vibration. |
| Legacy Broadcast Equipment | Video Signal Generator Output |
Use Scenario: Horizontal sweep generation in studio-grade analog video test equipment requiring waveform fidelity and timing stability. IC Role / Device Role / Timing Role: Precision-switching element in calibrated deflection amplifier with regulated base drive. Use Value: Tight hFE2 tolerance (5.3–7.5) enables repeatable gain setting; low ICBO (≤10 µA) ensures minimal drift over temperature. | Use Scenario: Output stage of benchtop video signal generators producing composite NTSC/PAL waveforms. IC Role / Device Role / Timing Role: Final amplification and pulse shaping device delivering sync-locked horizontal drive to external CRT loads. Use Value: 1500 V VCBO allows safe margin against overshoot in open-circuit or mismatched load conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage horizontal deflection transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 2SC5027 | VCBO=1500 V, VCEO=700 V, tf=0.25 µs, PC=65 W, same TO-3PMLH package | Slightly slower fall time; identical pinout and voltage ratings | Acceptable drop-in replacement where 0.05 µs longer tf is tolerable in legacy design margins. |
| BU2520DX | VCBO=1500 V, VCEO=700 V, tf=0.18 µs, PC=65 W, TO-3P package (non-isolated tab) | Faster switching but non-isolated collector tab requires insulated mounting hardware | Preferred when faster switching is needed and board layout allows isolation adaptation. |
Compared with 2SC6091, 2SC5027 offers identical voltage/current specs but slightly degraded switching speed, while BU2520DX improves tf by 10% but requires mechanical redesign for collector isolation - both serve as functional alternatives in CRT horizontal output, not pin-to-pin replacements without validation.
Availability
2SC6091 is available at Aetrix Electronics and suitable for color TV repair, CRT monitor refurbishment, broadcast equipment maintenance, and analog video signal generator production requiring stable component supply and long-lifecycle support.
Supply support for 2SC6091 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
SANYO Semiconductor Co., Ltd. was a Japanese semiconductor manufacturer specializing in analog, power, and display-related ICs and discrete devices before its acquisition by ON Semiconductor in 2011.
The 2SC6091 belongs to SANYO's high-voltage bipolar transistor product line, engineered specifically for CRT horizontal deflection output stages where high breakdown voltage, fast switching, and thermal robustness are mandatory.
FAQ
What is the maximum collector-emitter voltage the 2SC6091 can sustain in switching operation?
The 2SC6091 has a guaranteed collector-to-emitter sustaining voltage VCEO(sus) of 700 V at IC = 100 mA and IB = 0 A. This rating reflects its ability to block voltage during the horizontal retrace interval in CRT deflection circuits without breakdown, and is distinct from its DC-rated VCEO of 700 V. Operation above this value risks avalanche failure.
Does the 2SC6091 require a heatsink in typical color TV applications?
Yes - the 2SC6091 dissipates up to 65 W at Tc = 25°C, which necessitates a properly mounted heatsink in all operational modes. Without forced cooling or heatsinking, junction temperature exceeds 150°C rapidly. The TO-3PMLH package features an isolated metal tab designed for direct thermal interface to external heatsinks using insulating washers and thermal compound.
What is the base-emitter saturation voltage of the 2SC6091 under full-load conditions?
The 2SC6091 exhibits a base-to-emitter saturation voltage VBE(sat) of 1.5 V at IC = 4.5 A and IB = 0.9 A. This value determines required base drive voltage headroom and impacts driver transistor selection - for example, a Darlington pre-driver must supply ≥2.0 V to ensure full saturation across temperature and unit variation.
Can the 2SC6091 be used in modern LCD or LED TV power supplies?
No - the 2SC6091 is purpose-built for CRT horizontal deflection output stages and is not suited for modern switch-mode power supplies (SMPS) in LCD/LED TVs. Its gain profile, switching characteristics, and safe operating area are optimized for 15.7 kHz quasi-resonant flyback operation, not high-frequency (≥50 kHz) PWM topologies used in contemporary AC-DC converters.
Is the 2SC6091 pin-compatible with the 2SC5027?
Yes - the 2SC6091 and 2SC5027 share identical TO-3PMLH packaging, pin assignment (Base=1, Collector=2, Emitter=3), and mechanical footprint. However, differences in fall time (0.2 µs vs. 0.25 µs) and hFE dispersion mean electrical validation is required before substitution in production systems.
2SC6091 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-3P-3 Full Pack
- Packaging:
- Bulk
- Product Status:
- Active
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 8 A
- Voltage - Collector Emitter Breakdown (Max):
- 700 V
- Vce Saturation (Max) @ Ib, Ic:
- 2V @ 900mA, 4.5A
- Current - Collector Cutoff (Max):
- 10mA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 10 @ 1A, 5V
- Power - Max:
- 3 W
- Frequency - Transition:
- -
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-3PMLH
2SC6091 FAQ
1.How can I place an order for 2SC6091 through Aetrix?
Please submit a Request for Quotation (RFQ) for 2SC6091 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 2SC6091 reliable?
The price and inventory of 2SC6091 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SC6091 is usually 5 days.
3.What payment methods are accepted for 2SC6091?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SC6091 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 2SC6091?
2SC6091 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 2SC6091 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 2SC6091?
For technical support, including 2SC6091 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SC6091 requirements.
6.How does Aetrix verify that 2SC6091 is sourced from the original manufacturer or authorized distributors?
All 2SC6091 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 2SC6091 meets industry standards.
7.What is the process for return or replacement of 2SC6091?
All 2SC6091 units undergo pre-shipment inspection (PSI). If there is an issue with 2SC6091, 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 2SC6091 part is unused and in its original packaging.
Return procedure for 2SC6091:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
2SC6091 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…

