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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

NXP Semiconductors BC559C,116

Name: BC559C,116
Brand: NXP Semiconductors
SKU: BC559C,116
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC559C,116

Manufacturer:: NXP Semiconductors

Category:: Single Bipolar Transistors

Package:: TO-226-3, TO-92-3 (TO-226AA) Formed Leads

Datasheet:: BC559C,116.pdf

Description:: TRANS PNP 30V 0.1A TO-92-3

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Product details

Overview

BC559C,116 from NXP Semiconductors is a PNP general purpose bipolar junction transistor in TO-92 (SOT54/SC-43A) package, rated for −30 V V_CEO, −100 mA I_C, and 500 mW P_tot, used in low-voltage analog amplification and discrete switching circuits such as LED drivers and signal inversion stages.

For engineers reviewing the BC559C,116 datasheet, BC559C,116 pinout, BC559C,116 application, or BC559C,116 equivalent, key selection criteria include DC current gain (h_FE = 420–800 at −2 mA), V_CEsat (−60 to −300 mV), thermal resistance (250 K/W), noise figure (≤4 dB), and compatibility with BC549-based NPN designs.

Technical Context

The BC559C,116 operates as a silicon PNP BJT with base-controlled current amplification, optimized for linear-mode small-signal amplification and saturated-switching operation. Its h_FE variation across collector current (−0.1 to −100 mA) and temperature is documented, and V_BE exhibits predictable negative temperature coefficient (−2 mV/K).

It features low-noise performance (4 dB at 1 kHz/200 Hz bandwidth) and low capacitance (C_c = 4 pF), supporting audio-frequency and medium-speed digital switching up to f_T = 100 MHz under specified bias conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−30 V - maximum safe collector-emitter voltage in open-base configuration
I_C	−100 mA - continuous DC collector current rating at T_amb ≤ 25 °C
h_FE	420–800 - DC current gain at V_CE = −5 V, I_C = −2 mA, defining small-signal amplification capability
V_CEsat	−60 to −300 mV - saturation voltage at I_C = −10 mA / I_B = −0.5 mA, critical for low-loss switching
P_tot	500 mW - total power dissipation limit on FR4 PCB, setting thermal design boundary
f_T	100 MHz - transition frequency at V_CB = −5 V, I_E = −10 mA, indicating high-frequency usability
R_th(j-a)	250 K/W - junction-to-ambient thermal resistance, determining temperature rise per watt dissipated

Pinout & Package

BC559C,116 is housed in a plastic single-ended leaded (through-hole) TO-92 package (SOT54 / SC-43A), with 3 leads and standard 2.54 mm lead pitch. The package outline conforms to IEC 60134 and JEDEC TO-92 specifications.

Pin/Terminal	Circuit Role	Design Meaning
1	Emitter	Current exit terminal in PNP operation; connected to most positive rail in common-emitter switch configurations
2	Base	Control terminal; requires reverse-biased current (−I_B) to turn on conduction between emitter and collector
3	Collector	Current entry terminal; typically tied to load or lower-potential node in switching applications

Key Features

Feature	Design Value
Low-noise amplification	4 dB noise figure at 1 kHz/200 Hz bandwidth enables use in preamplifier stages without added noise degradation
High DC current gain	h_FE = 420–800 supports high-input-impedance amplifier designs with minimal base drive requirements
Low saturation voltage	V_CEsat ≤ −300 mV at I_C = −10 mA ensures efficient switching with low conduction loss in logic-level interfaces
Thermal stability	V_BE tempco of −2 mV/K and documented h_FE vs. temperature curves aid bias network design for stable operation

Applications

Audio Pre-amplifier Stage	LED Driver Switch
Use Scenario: Amplifying weak microphone or sensor signals in battery-powered portable audio devices. IC Role / Device Role / Timing Role: PNP small-signal amplifier in common-emitter configuration with emitter degeneration. Use Value: 4 dB noise figure and h_FE ≥ 420 preserve signal integrity while enabling single-supply operation with rail-referenced biasing.	Use Scenario: Driving red/green indicator LEDs from microcontroller GPIO pins with active-low logic. IC Role / Device Role / Timing Role: Saturated PNP switch controlling LED anode connection to V_CC. Use Value: V_CEsat ≤ −300 mV minimizes voltage drop, ensuring >95% of supply reaches LED; −100 mA rating supports multiple parallel LEDs.
Level Shifter	Complementary Pair Amplifier
Use Scenario: Translating 3.3 V logic outputs to interface with 5 V or 12 V analog subsystems. IC Role / Device Role / Timing Role: Inverter-based level translator using emitter-follower or common-emitter topology. Use Value: −30 V V_CEO and −100 mA I_C allow safe operation across industrial logic voltage domains without external clamping.	Use Scenario: Building Class-A or push-pull output stages with matched NPN complement BC549. IC Role / Device Role / Timing Role: PNP half of complementary emitter-coupled pair in differential or output stage. Use Value: Matched h_FE range and thermal characteristics with BC549 enable balanced gain and offset behavior in symmetrical topologies.

Audio Pre-amplifier Stage

LED Driver Switch

Use Scenario: Amplifying weak microphone or sensor signals in battery-powered portable audio devices.

IC Role / Device Role / Timing Role: PNP small-signal amplifier in common-emitter configuration with emitter degeneration.

Use Value: 4 dB noise figure and h_FE ≥ 420 preserve signal integrity while enabling single-supply operation with rail-referenced biasing.

Use Scenario: Driving red/green indicator LEDs from microcontroller GPIO pins with active-low logic.

IC Role / Device Role / Timing Role: Saturated PNP switch controlling LED anode connection to V_CC.

Use Value: V_CEsat ≤ −300 mV minimizes voltage drop, ensuring >95% of supply reaches LED; −100 mA rating supports multiple parallel LEDs.

Level Shifter

Complementary Pair Amplifier

Use Scenario: Translating 3.3 V logic outputs to interface with 5 V or 12 V analog subsystems.

IC Role / Device Role / Timing Role: Inverter-based level translator using emitter-follower or common-emitter topology.

Use Value: −30 V V_CEO and −100 mA I_C allow safe operation across industrial logic voltage domains without external clamping.

Use Scenario: Building Class-A or push-pull output stages with matched NPN complement BC549.

IC Role / Device Role / Timing Role: PNP half of complementary emitter-coupled pair in differential or output stage.

Use Value: Matched h_FE range and thermal characteristics with BC549 enable balanced gain and offset behavior in symmetrical topologies.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP general purpose transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC557B,116	Lower h_FE range (200–450); identical package, voltage/current ratings, and pinout	Suitable where lower gain and tighter h_FE tolerance reduce risk of overdrive in switching	Select BC557B,116 when circuit stability under varying β or reduced base drive is prioritized over maximum gain
MMBT559	SOT-23 surface-mount package; same electrical specs but different footprint and thermal resistance (R_th(j-a) ≈ 300 K/W)	Used in space-constrained PCBs where through-hole TO-92 is not feasible	Choose MMBT559 only when board layout mandates SMT and thermal derating is accounted for

Compared with BC557B,116 and MMBT559, the BC559C,116 delivers highest h_FE among TO-92 PNP variants and remains optimal for gain-sensitive linear amplifiers, while maintaining full pinout compatibility with legacy BC556–BC559 family layouts.

Availability

BC559C,116 is available at Aetrix Electronics and suitable for audio pre-amplifier stages, LED driver switches, level shifters, and complementary pair amplifiers requiring stable component supply and long-term obsolescence management.

Supply support for BC559C,116 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

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer applications.

The BC559C,116 belongs to NXP's legacy general-purpose bipolar transistor product line, designed for cost-effective, reliable discrete amplification and switching in non-safety-critical analog and mixed-signal systems.

FAQ

What is the maximum collector-emitter voltage rating for BC559C,116?

The BC559C,116 has a maximum collector-emitter voltage (V_CEO) rating of −30 V under open-base conditions, as defined in the Absolute Maximum Ratings table. This value must not be exceeded to prevent junction breakdown. Operation above this voltage risks permanent device failure, and design margins should account for transients and ripple in real-world circuits using BC559C,116.

Does BC559C,116 have a specified noise figure, and under what conditions?

Yes, BC559C,116 has a noise figure of ≤4 dB, measured at V_CE = −5 V, I_C = −200 μA, R_S = 2 kΩ, over 30 Hz–15.7 kHz bandwidth. An identical 4 dB value is confirmed at 1 kHz with 200 Hz bandwidth. This low-noise performance makes BC559C,116 suitable for sensitive pre-amplifier stages where BC559C,116 contributes minimal added noise.

What is the DC current gain (h_FE) range for BC559C,116, and at what test conditions?

The BC559C,116 exhibits a DC current gain (h_FE) range of 420 to 800, measured at V_CE = −5 V and I_C = −2 mA. This specification is guaranteed across the operating temperature range and defines the transistor's small-signal amplification capability. Designers must verify bias stability across this h_FE spread when using BC559C,116 in production circuits.

Is BC559C,116 pin-compatible with other transistors in the BC55x series?

Yes, BC559C,116 shares identical TO-92 (SOT54) pinout (emitter-base-collector on pins 1-2-3) and mechanical dimensions with all BC556–BC559 variants, including BC557B,116 and BC558A,116. This allows direct substitution within the same package footprint, though electrical parameters like h_FE and V_CEsat differ-always confirm suitability of BC559C,116 for the target bias point and gain requirement.

What thermal resistance does BC559C,116 exhibit, and how is it measured?

BC559C,116 has a junction-to-ambient thermal resistance (R_th(j-a)) of 250 K/W, measured with the transistor mounted on a standard FR4 printed-circuit board. This value assumes natural convection and no heatsink; actual thermal performance depends on PCB copper area, airflow, and nearby heat sources. Proper thermal design using BC559C,116 requires limiting power dissipation to maintain T_j ≤ 150 °C.

BC559C,116 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: -

Package/Case:: TO-226-3, TO-92-3 (TO-226AA) Formed Leads

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 100 mA

Voltage - Collector Emitter Breakdown (Max):: 30 V

Vce Saturation (Max) @ Ib, Ic:: 650mV @ 5mA, 100mA

Current - Collector Cutoff (Max):: 15nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 420 @ 2mA, 5V

Power - Max:: 500 mW

Frequency - Transition:: 100MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-92-3

BC559C,116 FAQ

1.How can I place an order for BC559C,116 through Aetrix?

Please submit a Request for Quotation (RFQ) for BC559C,116 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 BC559C,116 reliable?

The price and inventory of BC559C,116 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC559C,116 is usually 5 days.

3.What payment methods are accepted for BC559C,116?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC559C,116 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC559C,116?

BC559C,116 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC559C,116 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 BC559C,116?

For technical support, including BC559C,116 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC559C,116 requirements.

6.How does Aetrix verify that BC559C,116 is sourced from the original manufacturer or authorized distributors?

All BC559C,116 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 BC559C,116 meets industry standards.

7.What is the process for return or replacement of BC559C,116?

All BC559C,116 units undergo pre-shipment inspection (PSI). If there is an issue with BC559C,116, 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 BC559C,116 part is unused and in its original packaging.

Return procedure for BC559C,116:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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