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onsemi FJC2098QTF
- Part No.:
- FJC2098QTF
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
FJC2098QTF.pdf
- Description:
- TRANS NPN 20V 5A SOT-89-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,143
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Product details
Overview
FJC2098QTF from Fairchild Semiconductor is an NPN epitaxial silicon transistor optimized for camera strobe flash circuits, delivering 5 A DC collector current, 1.0 V collector-emitter saturation voltage at IC = 4 A/IB = 0.1 A, and 23 pF output capacitance at VCB = 20 V - enabling fast switching and high-current pulse generation in compact flash drivers.
For engineers reviewing the FJC2098QTF datasheet, pinout, applications, or equivalent options, key selection criteria include its SOT-89 package thermal performance, hFE range (120–270), low VCE(sat) under high pulse load, and complementary pairing with FJC1386 in dual-transistor flash control topologies.
Technical Context
The FJC2098QTF operates as a high-current, low-saturation-voltage NPN switch in pulsed power applications. Its 20 V VCEO rating and 50 V VCBO support safe operation in capacitor-charged flash discharge paths, while its 150 °C maximum junction temperature enables sustained reliability in thermally constrained camera modules.
Designed for discrete strobe driver stages, it features a 23 pF COB at 1 MHz and 20 V, minimizing switching losses during rapid turn-off, and exhibits hFE of 120–270 at VCE = 2 V and IC = 0.5 A - ensuring stable current gain across industrial temperature range (−40 °C to +125 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Collector Current (IC) | 5 A DC - supports high-energy flash pulses without derating in SOT-89 package |
| VCE(sat) @ IC=4A/IB=0.1A | 1.0 V - minimizes conduction loss and heat generation during flash discharge |
| hFE Range | 120–270 @ VCE=2V, IC=0.5A - ensures predictable base drive requirements across production lots |
| COB @ VCB=20V, f=1MHz | 23 pF - reduces Miller effect and improves turn-off speed in high-frequency strobe timing |
| Package | SOT-89 - surface-mount, thermally enhanced plastic package with exposed collector tab for PCB heat sinking |
| Junction Temp (TJ) | 150 °C - enables reliable operation in sealed camera housings with limited airflow |
Pinout & Package
SOT-89 package with molded plastic body, exposed collector pad on underside for thermal conduction to PCB copper. Pin 1 = Base, Pin 2 = Collector (tab-connected), Pin 3 = Emitter.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Base | Control input requiring ~0.1 A drive current to saturate at 4 A collector load |
| Pin 2 | Collector | Main high-current output node; electrically connected to exposed metal tab for thermal dissipation |
| Pin 3 | Emitter | Reference return path; tied to ground or low-side current sense in typical strobe configurations |
Key Features
| Feature | Design Value |
|---|---|
| Low VCE(sat) | 1.0 V at IC = 4 A - reduces I²R losses and thermal stress during flash pulse |
| High IC Rating | 5 A DC - accommodates peak currents in xenon and high-brightness LED strobes |
| Complementary Pairing | Explicitly designed as complement to FJC1386 - enables matched dual-transistor flash trigger designs |
| Thermal Robustness | 150 °C TJ max + SOT-89 thermal pad - supports continuous duty cycling in portable imaging systems |
Applications
| Camera Strobe Driver | Xenon Flash Discharge Control |
|---|---|
Use Scenario: High-intensity illumination pulse in smartphone or digital camera modules. IC Role / Device Role / Timing Role: Primary switching transistor controlling capacitor bank discharge into xenon tube. Use Value: 1.0 V VCE(sat) limits power loss to <4 W during 4 A pulse, reducing thermal rise in space-constrained PCB layouts. | Use Scenario: Triggered high-voltage flash circuit requiring precise current control and fast turn-off. IC Role / Device Role / Timing Role: Low-saturation switch in series with flash tube cathode, enabling clean current cutoff. Use Value: 23 pF COB minimizes gate-drive coupling and ensures stable timing in sub-millisecond flash durations. |
| LED Strobe Power Stage | Portable Imaging Power Switch |
Use Scenario: High-current pulse driver for multi-LED arrays in action cameras or AR glasses. IC Role / Device Role / Timing Role: Main current-handling transistor in constant-current pulse generator stage. Use Value: 5 A IC rating supports >1000 lm flash output from RGB LED stacks without external heatsinking. | Use Scenario: Compact, battery-powered imaging device requiring robust overcurrent tolerance. IC Role / Device Role / Timing Role: Primary power switch in flash subsystem with integrated thermal protection. Use Value: 150 °C TJ rating allows operation at full load in ambient temperatures up to 85 °C without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN high-current switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBT2222ALT1G | Lower IC (600 mA), higher VCE(sat) (1.2 V @ 150 mA), SOT-23 package | Not suitable for >1 A strobe loads; limited thermal capacity | Select only for low-power indicator flashes or signal-level switching |
| ZTX851 | Higher VCEO (60 V), same SOT-89 package, hFE 100–300, VCE(sat) 1.2 V @ 3 A | Better voltage margin but higher saturation loss; less optimized for flash timing | Prefer when system requires >20 V flash bus voltage or wider hFE distribution |
Compared with FJC2098QTF, MMBT2222ALT1G lacks sufficient current handling and thermal capability for strobe use, while ZTX851 trades lower switching efficiency for higher voltage headroom - making FJC2098QTF the optimal choice for 20 V, 4–5 A camera flash drivers where low VCE(sat) and thermal reliability are critical.
Availability
FJC2098QTF is available at Aetrix Electronics and suitable for camera strobe drivers, xenon flash discharge circuits, and portable imaging power switches requiring stable component supply, consistent hFE grading, and SOT-89 thermal performance.
Supply support for FJC2098QTF 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
Fairchild Semiconductor was a U.S.-based analog and discrete semiconductor manufacturer, acquired by ON Semiconductor in 2016; known for high-performance power transistors and robust process technologies.
The FJC2098QTF belongs to Fairchild's high-current NPN transistor family targeting compact, high-efficiency flash and pulse-power applications in consumer imaging systems.
FAQ
What is the pin configuration of the FJC2098QTF?
The FJC2098QTF uses the SOT-89 package with Pin 1 = Base, Pin 2 = Collector (connected to exposed metal tab), and Pin 3 = Emitter. This layout enables direct thermal coupling of the collector to the PCB and simplifies high-current routing in flash driver PCBs. The FJC2098QTF marking "2098" appears on the top surface adjacent to Pin 1.
What does the 'Q' in FJC2098QTF signify?
The 'Q' in FJC2098QTF denotes the hFE classification grade per Fairchild's ordering matrix: Q-grade devices have a DC current gain range of 120–270 at VCE = 2 V and IC = 0.5 A. This binning ensures predictable base drive design for FJC2098QTF in production strobe circuits without gain-related timing variation.
Can FJC2098QTF replace FJC1386 in a circuit?
No - FJC2098QTF is explicitly described as a complement to FJC1386, not a replacement. FJC1386 is a PNP transistor, while FJC2098QTF is NPN; they serve opposite polarity roles in push-pull or complementary strobe driver topologies. Swapping them would invert logic and prevent proper flash triggering in circuits designed for FJC2098QTF.
What is the maximum allowable power dissipation for FJC2098QTF?
The FJC2098QTF has a rated power dissipation of 0.5 W at TC = 25 °C. However, due to its SOT-89 thermal pad, actual usable power depends on PCB copper area: with ≥1 cm² of 2-oz copper connected to the collector tab, FJC2098QTF can sustain short-duration 4 A pulses with average power below 0.5 W. Continuous operation above 0.3 W requires thermal design validation.
Is FJC2098QTF suitable for automotive camera applications?
FJC2098QTF meets industrial temperature range (−40 °C to +125 °C) and has no AEC-Q200 qualification. It may be used in non-safety-critical automotive camera modules if validated per system-level requirements, but is not approved for ASIL-B or higher functions. For automotive-grade alternatives, consult ON Semiconductor's AEC-Q200-qualified NPN transistors with equivalent SOT-89 ratings.
FJC2098QTF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 5 A
- Voltage - Collector Emitter Breakdown (Max):
- 20 V
- Vce Saturation (Max) @ Ib, Ic:
- 1V @ 100mA, 4A
- Current - Collector Cutoff (Max):
- 500nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 120 @ 500mA, 2V
- Power - Max:
- 500 mW
- Frequency - Transition:
- -
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89-3
FJC2098QTF FAQ
1.How can I place an order for FJC2098QTF through Aetrix?
Please submit a Request for Quotation (RFQ) for FJC2098QTF 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 FJC2098QTF reliable?
The price and inventory of FJC2098QTF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FJC2098QTF is usually 5 days.
3.What payment methods are accepted for FJC2098QTF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FJC2098QTF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FJC2098QTF?
FJC2098QTF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FJC2098QTF 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 FJC2098QTF?
For technical support, including FJC2098QTF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FJC2098QTF requirements.
6.How does Aetrix verify that FJC2098QTF is sourced from the original manufacturer or authorized distributors?
All FJC2098QTF 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 FJC2098QTF meets industry standards.
7.What is the process for return or replacement of FJC2098QTF?
All FJC2098QTF units undergo pre-shipment inspection (PSI). If there is an issue with FJC2098QTF, 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 FJC2098QTF part is unused and in its original packaging.
Return procedure for FJC2098QTF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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