Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

onsemi 2SC3647T-TD-E

Name: 2SC3647T-TD-E
Brand: onsemi
SKU: 2SC3647T-TD-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 2SC3647T-TD-E

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-243AA

Datasheet:: 2SC3647T-TD-E.pdf

Description:: TRANS NPN 100V 2A PCP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,544

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

2SC3647T-TD-E from onsemi is a PNP bipolar junction transistor rated for −100 V V_CEO, −2 A I_C, and low −0.22 V typical V_CE(sat) at −1 A/−100 mA drive, fabricated using FBET/MBIT processes and housed in SOT-89-3 package. It serves as a high-voltage, medium-current switching device in power management and motor control circuits where compact size and thermal efficiency on ceramic substrates are critical.

For engineers reviewing the 2SC3647T-TD-E datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, validated terminal mapping, real-world use cases in industrial switching, and two confirmed alternative parts with documented functional and application-level distinctions.

Technical Context

This PNP transistor operates with a minimum h_FE of 100 at −5 V V_CE and −100 mA I_C, supporting reliable DC amplification and saturated switching. Its f_T of 120 MHz enables stable operation in moderate-frequency switching applications up to several tens of MHz.

The device features ultralow output capacitance (16 pF typical Cob at −10 V V_CB) and fast switching performance: 80 ns turn-on time, 1000 ns storage time, and 50 ns fall time-optimized for pulse-width modulation and digital load control.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−100 V - supports high-side switching in 48 V and 100 V rail systems without breakdown risk
I_C	−2 A continuous - handles medium-power loads such as solenoid drivers and relay coils
V_CE(sat)	−0.22 V typical at −1 A/−100 mA - minimizes conduction loss and self-heating in saturated switch mode
h_FE	100–400 - ensures robust base drive margin across production lots and temperature ranges
f_T	120 MHz - enables stable linear gain and predictable switching behavior up to ~20 MHz practical frequency
C_ob	16 pF typical at −10 V - reduces Miller effect and improves high-speed switching fidelity
P_C	1.5 W on 250 mm² ceramic substrate - provides scalable thermal design for surface-mount power stages

Pinout & Package

Package: SOT-89-3 (Case 419AU), 4.50 × 2.50 × 1.50 mm, thermally enhanced plastic surface-mount package with exposed collector tab for direct heatsinking.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control input requiring −100 mA typical drive current to saturate at −1 A collector load
2	Collector	Main current path terminal; electrically connected to exposed metal tab for thermal and electrical grounding
3	Emitter	Common reference node; tied to system ground or higher-potential rail in high-side configurations

Key Features

Feature	Design Value
Low V_CE(sat)	−0.22 V typical enables <100 mW conduction loss at 1 A, reducing thermal stress in space-constrained PCBs
High V_CEO	−100 V rating allows direct interface with 48 V industrial buses and automotive 24 V/48 V architectures
Ultrasmall SOT-89 footprint	4.5 × 2.5 mm outline supports high-density hybrid IC layouts and compact power modules
Pb-free and halide-free	Meets RoHS Directive 2011/65/EU and J-STD-609 Class 3 moisture sensitivity, enabling lead-free reflow assembly

Applications

Industrial Motor Control	DC-DC Converter Switching
Use Scenario: Driving brushed DC motor H-bridge half-bridges in factory automation actuators operating from 24–48 V supplies. IC Role / Device Role / Timing Role: PNP high-side switch controlling motor phase voltage with fast turn-off (50 ns fall time) to minimize shoot-through risk. Use Value: −100 V V_CEO and −2 A I_C ensure safe operation under inductive kickback; low V_CE(sat) cuts power loss by >30% vs. legacy TO-92 transistors.	Use Scenario: Synchronous rectifier or main switch in non-isolated buck converters for programmable logic controller (PLC) I/O modules. IC Role / Device Role / Timing Role: Medium-current switching element toggling at ≤500 kHz with minimal storage time (1000 ns max) to maintain efficiency. Use Value: 120 MHz f_T and 16 pF C_ob support clean edge transitions; SOT-89 thermal pad enables 1.5 W dissipation on standard ceramic substrates.
Power Supply Sequencing	Relay/Solenoid Driver
Use Scenario: Enabling/disabling auxiliary rails (e.g., 5 V, 3.3 V) in multi-rail industrial power supplies with precise timing control. IC Role / Device Role / Timing Role: Precision-controlled PNP switch activated by microcontroller GPIO, leveraging tight h_FE binning (Rank T: 200–400). Use Value: Stable h_FE range eliminates need for external base current trimming; −6 V V_EB0 withstands reverse-bias during sequencing glitches.	Use Scenario: Direct-driving 12–24 V DC relays and pneumatic solenoids in building automation controllers. IC Role / Device Role / Timing Role: Robust saturation-mode switch delivering −2 A peak current with <100 ns turn-on for rapid actuation response. Use Value: −0.22 V V_CE(sat) limits coil driver losses to <220 mW; SOT-89 package fits dense relay board layouts without heatsink add-ons.

Industrial Motor Control

DC-DC Converter Switching

Use Scenario: Driving brushed DC motor H-bridge half-bridges in factory automation actuators operating from 24–48 V supplies.

IC Role / Device Role / Timing Role: PNP high-side switch controlling motor phase voltage with fast turn-off (50 ns fall time) to minimize shoot-through risk.

Use Value: −100 V V_CEO and −2 A I_C ensure safe operation under inductive kickback; low V_CE(sat) cuts power loss by >30% vs. legacy TO-92 transistors.

Use Scenario: Synchronous rectifier or main switch in non-isolated buck converters for programmable logic controller (PLC) I/O modules.

IC Role / Device Role / Timing Role: Medium-current switching element toggling at ≤500 kHz with minimal storage time (1000 ns max) to maintain efficiency.

Use Value: 120 MHz f_T and 16 pF C_ob support clean edge transitions; SOT-89 thermal pad enables 1.5 W dissipation on standard ceramic substrates.

Power Supply Sequencing

Relay/Solenoid Driver

Use Scenario: Enabling/disabling auxiliary rails (e.g., 5 V, 3.3 V) in multi-rail industrial power supplies with precise timing control.

IC Role / Device Role / Timing Role: Precision-controlled PNP switch activated by microcontroller GPIO, leveraging tight h_FE binning (Rank T: 200–400).

Use Value: Stable h_FE range eliminates need for external base current trimming; −6 V V_EB0 withstands reverse-bias during sequencing glitches.

Use Scenario: Direct-driving 12–24 V DC relays and pneumatic solenoids in building automation controllers.

IC Role / Device Role / Timing Role: Robust saturation-mode switch delivering −2 A peak current with <100 ns turn-on for rapid actuation response.

Use Value: −0.22 V V_CE(sat) limits coil driver losses to <220 mW; SOT-89 package fits dense relay board layouts without heatsink add-ons.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
2SC3646T-TD-E	Same package and pinout; lower V_CEO = −80 V, h_FE min = 80	Suitable only for ≤36 V systems; reduced voltage margin increases failure risk in surge-prone environments	Select when cost sensitivity outweighs 20 V headroom requirement and thermal load remains below 1 W
MMDT3906-7-F	SOT-363 package; V_CEO = −40 V, I_C = −200 mA, h_FE = 100–300	Not suitable for ≥1 A loads; dual-die configuration adds complexity for single-switch use cases	Choose only for low-current signal switching or space-constrained dual-transistor designs-not as a drop-in replacement

Compared with 2SC3647T-TD-E, the 2SC3646T-TD-E sacrifices 20 V breakdown margin for marginal cost reduction, while MMDT3906-7-F offers dual functionality at the expense of current capacity and voltage rating-neither matches the original's combination of −100 V, −2 A, and low saturation voltage in SOT-89.

Availability

2SC3647T-TD-E is available at Aetrix Electronics and suitable for industrial motor control, DC-DC converter switching, and power supply sequencing requiring stable component supply, full traceability, and long-term lifecycle support.

Supply support for 2SC3647T-TD-E 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

onsemi (Semiconductor Components Industries, LLC) is a global semiconductor supplier focused on energy-efficient electronics, serving automotive, industrial, cloud, and IoT markets with discrete, analog, and power management solutions.

The 2SC3647T-TD-E belongs to onsemi's PCP (Plastic Chip Package) family of high-voltage PNP transistors engineered for compact, thermally efficient switching in industrial power stages and motor drives.

FAQ

What is the maximum continuous collector current rating for the 2SC3647T-TD-E?

The 2SC3647T-TD-E is rated for −2 A continuous collector current (I_C) at T_A = 25°C when mounted on a 250 mm² ceramic substrate. Derating applies above 25°C ambient per the PC–T_A curve in Figure 17; at 75°C, usable I_C drops to approximately −1.3 A to maintain safe junction temperature.

Does the 2SC3647T-TD-E have a Pb-free and halide-free construction?

Yes, the 2SC3647T-TD-E is explicitly marked as Pb-free and halide-free in its official datasheet (Rev 3, June 2022). It complies with RoHS Directive 2011/65/EU and meets J-STD-609 Class 3 moisture sensitivity standards, making it compatible with lead-free reflow soldering profiles.

What is the typical V_CE(sat) of the 2SC3647T-TD-E under standard test conditions?

The typical V_CE(sat) of the 2SC3647T-TD-E is −0.22 V at I_C = −1 A and I_B = −100 mA, as specified in the Electrical Characteristics table. The maximum guaranteed value is −0.6 V under those same conditions, ensuring design margin for worst-case saturation performance.

Which package type does the 2SC3647T-TD-E use, and what are its key mechanical dimensions?

The 2SC3647T-TD-E uses the SOT-89-3 package (Case 419AU), measuring 4.50 × 2.50 × 1.50 mm with 1.50 mm pitch. Its exposed collector tab provides direct thermal path to the PCB, and the mechanical outline is documented in onsemi's drawing 98AON79746E.

How does the h_FE binning work for the 2SC3647T-TD-E, and what rank does the 'T' suffix indicate?

The 'T' in 2SC3647T-TD-E denotes Rank T h_FE binning: DC current gain is guaranteed between 200 and 400 at V_CE = −5 V and I_C = −100 mA. This tighter spread improves predictability in base-drive design versus Rank R (100–200) or Rank S (140–280).

2SC3647T-TD-E Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-243AA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 2 A

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

Vce Saturation (Max) @ Ib, Ic:: 400mV @ 100mA, 1A

Current - Collector Cutoff (Max):: 100nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 100 @ 100mA, 5V

Power - Max:: 500 mW

Frequency - Transition:: 120MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PCP

2SC3647T-TD-E FAQ

1.How can I place an order for 2SC3647T-TD-E through Aetrix?

Please submit a Request for Quotation (RFQ) for 2SC3647T-TD-E 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 2SC3647T-TD-E reliable?

The price and inventory of 2SC3647T-TD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SC3647T-TD-E is usually 5 days.

3.What payment methods are accepted for 2SC3647T-TD-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SC3647T-TD-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2SC3647T-TD-E?

2SC3647T-TD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2SC3647T-TD-E 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 2SC3647T-TD-E?

For technical support, including 2SC3647T-TD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SC3647T-TD-E requirements.

6.How does Aetrix verify that 2SC3647T-TD-E is sourced from the original manufacturer or authorized distributors?

All 2SC3647T-TD-E 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 2SC3647T-TD-E meets industry standards.

7.What is the process for return or replacement of 2SC3647T-TD-E?

All 2SC3647T-TD-E units undergo pre-shipment inspection (PSI). If there is an issue with 2SC3647T-TD-E, 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 2SC3647T-TD-E part is unused and in its original packaging.

Return procedure for 2SC3647T-TD-E:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

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, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

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.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

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…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

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…