CNCHIPDEPOT Original Part
2SB1198
2SB1198 PNP BJT transistor with 80V VCEO, 500mA collector current, low VCE(sat) and SOT-23 package.
Transistor PolarityPNP
Collector-Emitter Voltage (VCEO)80 V
Collector Current (IC)500 mA
DC Current Gain (hFE)120–390 @ IC = 100 mA, VCE = -3 V
Power Dissipation (PD)200 mW
PackageSOT-23
Product Overview
The 2SB1198 is a PNP epitaxial silicon bipolar junction transistor designed for low-frequency switching and amplification. It features an 80V collector-emitter voltage rating, 500mA maximum collector current, and low collector-emitter saturation voltage, making it suitable for efficient discrete switching stages and general-purpose driver circuits.
Packaged in a compact SOT-23 surface-mount package, the 2SB1198 supports space-efficient PCB designs requiring higher voltage capability than typical low-voltage PNP transistors. Its DC current gain range and 180MHz transition frequency also make it useful in signal amplification, complementary stages, and low-frequency control applications.
Specifications
Key electrical, package, and sourcing parameters for quick engineering review.
| Part Number | 2SB1198 |
| Brand | CNCHIPDEPOT |
| Package | SOT-23 |
| Product Type | BJT |
| Transistor Polarity | PNP |
| Collector-Emitter Voltage (VCEO) | 80 V |
| Collector Current (IC) | 500 mA |
| DC Current Gain (hFE) | 120–390 @ IC = -100 mA, VCE = -3 V |
| Power Dissipation (PD) | 200 mW @ TA = 25°C |
| Collector-Emitter Saturation Voltage (VCE(sat)) | 0.5 V Max (Magnitude), 0.2 V Typ @ IC = -500 mA, IB = -50 mA |
| Transition Frequency (fT) | 180 MHz Typ @ VCE = -10 V, IE = 50 mA |
| Collector-Base Voltage (VCBO) | 80 V |
| Emitter-Base Voltage (VEBO) | 5 V |
| Junction Temperature (TJ) | 150°C Max |
| Storage Temperature | -40°C to +150°C |
| Mounting Type | Surface Mount |
| Collector Cutoff Current (ICBO) | 0.5 µA Max (Magnitude) @ VCB = -50 V |
Cross Reference & Replacement Information
The following part numbers are commonly reviewed for replacement or compatibility matching. Always verify datasheet, package, pinout, and operating conditions before bulk purchase.
| Target Brand | Target MPN | Replace Type | Notes |
|---|---|---|---|
| Toshiba | 2SB1200 | Direct Replacement | Similar PNP BJT characteristics, check package compatibility. |
| Rohm | 2SB1386 | Functional Alternative | Verify voltage and current ratings match application requirements. |
| NXP Semiconductors | BC557B | Possible Replacement | Lower power device, suitable for low-current applications only. |
| ON Semiconductor | PN2907A | General Purpose Substitute | Check hFE range and thermal dissipation for specific use cases. |
Datasheet
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PDF
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Typical Applications
- High-voltage PNP switching circuits
- Low-frequency transistor amplifier stages
- LED and indicator driver circuits
- Complementary transistor output stages
- Discrete load control circuits
- Compact surface-mount driver applications
Ordering & RFQ Information
- MOQ: Contact sales
- Lead Time: 3–7 working days for stock items
- Packaging: Reel / Tube / Tray depending on package
- Sample Availability: Available on request
- Mass Production Status: 50K+ pcs Stock / Mass Production
FAQ
Can this part replace my current model?
It may be suitable depending on your circuit requirements. Please verify datasheet, package, pinout, and test samples before bulk orders.
Can I request samples?
Yes. Please submit your RFQ with target quantity and application details.
Need this part or a compatible replacement?
Send us your target part number, BOM list, quantity, and technical requirements. CNCHIPDEPOT can help review replacement options and provide RFQ support.
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As a China electronic component factory , China Chip Depot supports component sourcing, production, testing and quality inspection for global B2B buyers. We also provide Cross Reference Alternative Parts matching services to help engineers and procurement teams identify suitable component alternatives.
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SMT Assembly Workshop
SMT production and assembly capabilities supporting electronic component and PCB-related manufacturing requirements.
Semiconductor Production
Controlled production environments supporting semiconductor and electronic component manufacturing processes.
Component Testing Equipment
Electrical testing and verification equipment used to support performance checks and product consistency.
Quality Inspection Lab
Quality inspection processes help verify component condition, specifications and production consistency before shipment.