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

onsemi TIP30C

Name: TIP30C
Brand: onsemi
SKU: TIP30C
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TIP30C

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-220-3

Datasheet:: TIP30C.pdf

Description:: TRANS PNP 100V 1A TO-220-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TIP30C from STMicroelectronics is a low-voltage PNP power transistor designed for general-purpose switching and amplification in discrete power stages. It features V_CEO = −100 V, I_C = −1 A, V_CE(sat) = −0.7 V at I_C = −1 A / I_B = −125 mA, h_FE = 40–75 (at I_C = −200 mA), and TO-220 package. It is commonly used in linear power supplies and relay drivers.

For engineers reviewing the TIP30C datasheet, TIP30C pinout, TIP30C application, or TIP30C equivalent, key selection criteria include saturation voltage under load, DC current gain consistency across operating current, safe operating area limits, and thermal derating behavior in TO-220 mounting configurations.

Technical Context

The TIP30C employs planar "Base Island" technology to achieve high h_FE and low V_CE(sat), enabling efficient operation in Class-A amplifier stages and saturated-switching circuits. Its −100 V V_CEO and −100 V V_CBO support use in medium-voltage DC rails up to −80 V with margin.

It is electrically complementary to the NPN TIP29C, sharing identical package, thermal profile, and absolute maximum ratings-enabling matched-pair design in push-pull output stages and dual-rail power control circuits.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−100 V: Maximum collector-emitter blocking voltage with base open; defines usable DC rail range in switching applications.
I_C	−1 A continuous: Rated collector current at T_case = 25°C; derates linearly above 25°C per Figure 8.
V_CE(sat)	−0.7 V @ I_C = −1 A / I_B = −125 mA: Low saturation drop enables <1 W conduction loss at full rated current.
h_FE	40–75 @ I_C = −200 mA: Sufficient gain for direct TTL/CMOS drive without additional pre-biasing.
P_TOT	30 W @ T_case = 25°C: Requires heatsink for sustained >1 W dissipation; thermal resistance R_θJC ≈ 0.83°C/W.
V_EBO	−5 V: Limits allowable base drive swing; necessitates current-limiting resistor when driven from ≥5 V logic.

Pinout & Package

Package: TO-220 (3-lead, straight lead, insulated tab). Standard mechanical dimensions per ST's TO-220 mechanical data sheet (D = 15.25–15.75 mm, L = 13–14 mm, tab height H1 = 6.20–6.60 mm).

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Current source terminal	Connected to most positive supply node in PNP switch; carries full load current and must be routed with low-inductance path.
2 (Base)	Control input	Receives negative-going drive signal; requires series resistor to limit I_B ≤ −0.4 A and ensure saturation at target I_C.
3 (Collector)	Current sink terminal	Connected to load return path; voltage swing referenced to emitter; exposed metal tab is electrically connected to collector.

Key Features

Feature	Design Value
Planar "Base Island" construction	Enables tight h_FE distribution and stable gain over temperature vs. older epitaxial processes.
Low V_CE(sat)	Reduces conduction loss and self-heating in linear regulators and motor driver half-bridges.
TO-220 mechanical standardization	Ensures compatibility with off-the-shelf heatsinks, mounting hardware, and automated assembly tooling.
ECOPACK® lead-free finish	Meets RoHS Directive 2011/65/EU; second-level interconnect marked per JESD97 for process traceability.

Applications

Linear Power Supply Regulator

DC Motor Direction Control

Use Scenario: Used as pass transistor in adjustable negative-voltage linear regulators (e.g., −5 V to −15 V outputs).

IC Role / Device Role / Timing Role: PNP series pass element controlling output voltage via feedback loop to base.

Use Value: V_CE(sat) ≤ −0.7 V minimizes dropout voltage and improves efficiency at 1 A load.

Use Scenario: Paired with TIP29C in H-bridge driver for bidirectional 12 V DC motors in industrial actuators.

IC Role / Device Role / Timing Role: High-side PNP switch sourcing current to motor terminal during forward rotation.

Use Value: Matched V_CEO and h_FE with TIP29C ensures symmetrical turn-on/turn-off timing and reduces shoot-through risk.

Relay Driver Stage

Audio Power Amplifier Output

Use Scenario: Driving 24 V, 100 mA coil relays from microcontroller GPIO pins.

IC Role / Device Role / Timing Role: Saturated switch turning relay on/off with minimal base drive overhead.

Use Value: h_FE ≥ 40 allows direct drive from 3.3 V MCU with ≤10 kΩ base resistor, eliminating extra buffer stage.

Use Scenario: Complementary emitter-follower output stage in 5 W Class-AB audio amplifier.

IC Role / Device Role / Timing Role: PNP output device delivering negative half-cycle current to 8 Ω speaker load.

Use Value: Low V_CE(sat) preserves dynamic headroom and reduces crossover distortion near zero-crossing.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MJD30C	Surface-mount DPAK package; same V_CEO/I_C/h_FE specs but lower P_TOT (20 W) and higher R_θJA.	Used where board space is constrained and thermal management uses PCB copper instead of external heatsink.	Select when automated SMT assembly is required and power dissipation stays below 12 W.
BD241C	Higher V_CEO (−100 V same), but lower h_FE (min 20) and higher V_CE(sat) (−1.2 V @ I_C = −1 A).	Suitable for less critical switching where gain tolerance and saturation loss are less sensitive.	Choose only if cost is primary constraint and circuit can tolerate 70% higher conduction loss.

Compared with MJD30C and BD241C, the TIP30C offers superior thermal performance in through-hole systems, tighter h_FE control for predictable base drive, and proven reliability in legacy industrial power designs-making it preferred for service replacement and repair scenarios.

Availability

TIP30C is available at Aetrix Electronics and suitable for linear power supplies, relay drivers, H-bridge motor controls, and audio amplifier outputs requiring stable component supply and long-term BOM continuity.

Supply support for TIP30C 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, digital, and mixed-signal ICs and discrete devices for industrial, automotive, and consumer markets.

The TIP30C belongs to ST's legacy bipolar power transistor family, developed for robust, cost-effective discrete power control in non-automotive industrial equipment and legacy power systems.

FAQ

Is the TIP30C still in active production?

No-the TIP30C is marked "Obsolete Product(s)" in ST's official documentation (Rev 1, October 2007). However, Aetrix Electronics maintains legacy inventory and supports continued use in repair, maintenance, and long-lifecycle industrial applications where redesign is not feasible.

Can the TIP30C be used as a direct replacement for the TIP30B or TIP30A?

Yes, but with voltage margin trade-offs: TIP30A has V_CEO = −60 V, TIP30B has −80 V, while TIP30C's −100 V rating allows safe operation in all three cases. Derating curves and h_FE min/max values differ, so verify gain and thermal performance in the target circuit.

What is the electrical connection of the TO-220 metal tab?

The metal tab on the TIP30C is internally connected to the collector (Pin 3). When mounted to a heatsink, the heatsink becomes part of the collector circuit-requiring electrical isolation unless the heatsink is referenced to collector potential.

Does the TIP30C require a base resistor when driven by a microcontroller?

Yes-driving the base directly from an MCU GPIO risks exceeding I_B(max) = −0.4 A and damaging the transistor or MCU. A series base resistor (e.g., 1.5 kΩ for 5 V logic driving −1 A load at h_FE = 50) ensures safe saturation and prevents thermal runaway.

TIP30C Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-220-3

Packaging:: Bulk

Product Status:: Obsolete

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 1 A

Voltage - Collector Emitter Breakdown (Max):: 100 V

Vce Saturation (Max) @ Ib, Ic:: 700mV @ 125mA, 1A

Current - Collector Cutoff (Max):: 200µA

DC Current Gain (hFE) (Min) @ Ic, Vce:: 15 @ 1A, 4V

Power - Max:: 2 W

Frequency - Transition:: 3MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220-3

TIP30C FAQ

1.How can I place an order for TIP30C through Aetrix?

Please submit a Request for Quotation (RFQ) for TIP30C 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 TIP30C reliable?

The price and inventory of TIP30C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TIP30C is usually 5 days.

3.What payment methods are accepted for TIP30C?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TIP30C transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TIP30C?

TIP30C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TIP30C 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 TIP30C?

For technical support, including TIP30C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TIP30C requirements.

6.How does Aetrix verify that TIP30C is sourced from the original manufacturer or authorized distributors?

All TIP30C 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 TIP30C meets industry standards.

7.What is the process for return or replacement of TIP30C?

All TIP30C units undergo pre-shipment inspection (PSI). If there is an issue with TIP30C, 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 TIP30C part is unused and in its original packaging.

Return procedure for TIP30C:

1.Submit a request within 90 days.

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

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