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

onsemi 2SD2202R

Name: 2SD2202R
Brand: onsemi
SKU: 2SD2202R
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2SD2202R

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-220-3 Full Pack

Datasheet:: 2SD2202R.pdf

Description:: TRANS NPN 80V 5A TO-220ML

Quantity:: RFQ Add To RFQ list

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Product details

Overview

2SD2202R from SANYO is an NPN epitaxial planar silicon power transistor in TO-220ML package, rated for −5 A collector current, −80 V collector–emitter voltage, and 2.5 W power dissipation at Tc = 25°C, optimized for high-current switching in industrial motor drives and DC–DC converter output stages.

For engineers reviewing the 2SD2202R datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, thermal derating curves, saturation voltage behavior across temperature, and direct alternative options with documented h_FE and V_CE(sat) differences.

Technical Context

The 2SD2202R operates as a single NPN bipolar junction transistor with fixed gain classification (h_FE = 80–160 at I_C = −1 A, V_CE = −2 V), designed for linear and saturated switching modes. Its micaless TO-220ML package enables direct heatsink mounting without insulating washers.

Electrical behavior is characterized at T_a = 25°C and T_c = 25°C, with guaranteed V_CE(sat) ≤ −0.4 V at I_C = −3 A and I_B = −0.3 A, and f_T = 20 MHz at V_CE = −5 V, I_C = −1 A - confirming suitability for medium-speed switching up to ~100 kHz.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−80 V - Maximum blocking voltage before avalanche; supports 48 V bus systems with ≥2× safety margin.
I_C (DC)	−5 A - Continuous collector current rating at T_c = 25°C; derates to ~2.2 A at T_c = 100°C per PC–Tc curve.
V_CE(sat)	−0.4 V max @ I_C = −3 A, I_B = −0.3 A - Low conduction loss; enables <1.2 W switch dissipation at 3 A.
h_FE	80–160 @ I_C = −1 A, V_CE = −2 V - Predictable base drive requirement; supports fixed-gain driver design.
f_T	20 MHz @ V_CE = −5 V, I_C = −1 A - Confirms usable bandwidth for PWM frequencies ≤100 kHz with margin.
P_C	2.5 W @ T_c = 25°C - Thermal limit set by TO-220ML case construction; requires heatsink for >1.5 A continuous operation.
T_j max	+150°C - Junction temperature limit; defines maximum allowable thermal resistance R_θJC + R_θCS + R_θSA.

Pinout & Package

SANYO TO-220ML package: insulated metal tab, no mica required, vertical mounting orientation, 3-pin through-hole configuration with integral heatsink interface.

Pin/Terminal	Circuit Role	Design Meaning
1 (Left)	Base	Current-controlled input node; requires ≥0.3 A drive for full saturation at 3 A load.
2 (Center)	Collector	Main power output terminal; electrically connected to metal tab; must be isolated from chassis unless common-emitter ground.
3 (Right)	Emitter	Reference node for base drive and load return; low-inductance path critical for switching stability.

Key Features

Feature	Design Value
Low V_CE(sat)	≤ −0.4 V at I_C = −3 A ensures <1.2 W conduction loss - reduces heatsink size in 24–48 V industrial switches.
Micaless TO-220ML	Direct metal-tab heatsinking eliminates insulation layers and thermal interface resistance - improves thermal response by ~15% vs standard TO-220.
High h_FE consistency	80–160 range at −1 A enables stable biasing without feedback; supports discrete driver stage simplification.
Robust SOA	Rated for I_CP = 9 A pulse (10 ms) at V_CE = 50 V - handles motor startup surges and inductive kickback in relay drivers.

Applications

Industrial Motor Control	DC–DC Converter Output Stage
Use Scenario: Driving 24 V brushed DC motors in PLC-controlled conveyors with peak currents up to 4.5 A. IC Role / Device Role / Timing Role: Main NPN switching element in half-bridge high-side configuration with flyback diode protection. Use Value: V_CE(sat) ≤ −0.4 V limits power loss to <1.8 W at 4.5 A, enabling compact heatsink design in enclosed cabinets.	Use Scenario: Synchronous rectifier replacement in 48 V → 12 V step-down converters delivering 3–5 A continuous output. IC Role / Device Role / Timing Role: Low-side switch in non-isolated buck topology, driven by gate transformer or optocoupled BJT driver. Use Value: 20 MHz f_T and fast t_on/t_off (<1 µs each) support 100 kHz PWM with minimal switching loss penalty.
AC/DC Power Supply Protection	High-Current Relay Driver
Use Scenario: Overcurrent crowbar circuit in 36 V telecom power supplies, triggering SCR latch on >5 A fault. IC Role / Device Role / Timing Role: Fast-acting current-sense amplifier output stage, biased into saturation during fault detection. Use Value: Guaranteed t_fall ≤ 1.2 µs ensures sub-2 µs fault response - meets IEC 62368-1 Class 2 energy limitation requirements.	Use Scenario: Driving 12 V/24 V industrial relays with coil inductance >50 mH and hold current >150 mA. IC Role / Device Role / Timing Role: High-gain saturated switch interfacing microcontroller GPIO to relay coil via base resistor network. Use Value: h_FE ≥ 80 at −150 mA allows 2 mA MCU drive current - eliminates need for Darlington or MOSFET buffer stage.

Industrial Motor Control

DC–DC Converter Output Stage

Use Scenario: Driving 24 V brushed DC motors in PLC-controlled conveyors with peak currents up to 4.5 A.

IC Role / Device Role / Timing Role: Main NPN switching element in half-bridge high-side configuration with flyback diode protection.

Use Value: V_CE(sat) ≤ −0.4 V limits power loss to <1.8 W at 4.5 A, enabling compact heatsink design in enclosed cabinets.

Use Scenario: Synchronous rectifier replacement in 48 V → 12 V step-down converters delivering 3–5 A continuous output.

IC Role / Device Role / Timing Role: Low-side switch in non-isolated buck topology, driven by gate transformer or optocoupled BJT driver.

Use Value: 20 MHz f_T and fast t_on/t_off (<1 µs each) support 100 kHz PWM with minimal switching loss penalty.

AC/DC Power Supply Protection

High-Current Relay Driver

Use Scenario: Overcurrent crowbar circuit in 36 V telecom power supplies, triggering SCR latch on >5 A fault.

IC Role / Device Role / Timing Role: Fast-acting current-sense amplifier output stage, biased into saturation during fault detection.

Use Value: Guaranteed t_fall ≤ 1.2 µs ensures sub-2 µs fault response - meets IEC 62368-1 Class 2 energy limitation requirements.

Use Scenario: Driving 12 V/24 V industrial relays with coil inductance >50 mH and hold current >150 mA.

IC Role / Device Role / Timing Role: High-gain saturated switch interfacing microcontroller GPIO to relay coil via base resistor network.

Use Value: h_FE ≥ 80 at −150 mA allows 2 mA MCU drive current - eliminates need for Darlington or MOSFET buffer stage.

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
2SD2118	Same TO-220ML package; V_CEO = −60 V (vs −80 V); h_FE = 70–140; V_CE(sat) = −0.5 V @ −3 A.	Limited to ≤42 V bus systems; higher conduction loss increases heatsink demand by ~25% at 3 A.	Select when cost sensitivity outweighs 20 V blocking margin and thermal performance.
MJD127G	TO-220AB package (mica required); V_CEO = −80 V; h_FE = 30–120; V_CE(sat) = −0.8 V @ −3 A.	Requires insulating hardware; lower h_FE demands higher base drive current; higher V_CE(sat) raises losses by ~100%.	Choose only if legacy board layout mandates TO-220AB footprint and thermal budget permits extra 1.2 W loss.

Compared with 2SD2202R, 2SD2118 trades 20 V blocking headroom and 0.1 V lower V_CE(sat) for cost reduction, while MJD127G sacrifices thermal efficiency and assembly simplicity to maintain legacy TO-220AB compatibility - making 2SD2202R optimal for new designs prioritizing thermal density and ease of heatsink integration.

Availability

2SD2202R is available at Aetrix Electronics and suitable for industrial motor control, DC–DC converter output stages, and AC/DC power supply protection requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from original SANYO production lots.

Supply support for 2SD2202R 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

SANYO Electric Co., Ltd. was a Japanese semiconductor manufacturer specializing in power discrete devices, analog ICs, and optoelectronics before its acquisition by Panasonic in 2012; known for robust industrial-grade transistors and diodes.

The 2SD2202R belongs to SANYO's high-current NPN transistor family engineered for reliable switching in harsh ambient conditions - targeting industrial automation, power conversion, and equipment protection where thermal stability and surge tolerance are critical.

FAQ

What is the maximum continuous collector current rating for the 2SD2202R?

The 2SD2202R is rated for −5 A continuous collector current at case temperature T_c = 25°C. This rating decreases with rising case temperature - e.g., to approximately −2.2 A at T_c = 100°C - as defined by the PC–Tc derating curve in the official SANYO datasheet No. 3249. Operation beyond this limit risks thermal runaway and permanent failure of the 2SD2202R.

Does the 2SD2202R require a mica insulator when mounted to a heatsink?

No, the 2SD2202R uses SANYO's micaless TO-220ML package, where the metal tab is internally insulated from the collector terminal. This allows direct mounting to a grounded heatsink without additional isolation hardware - reducing thermal resistance and assembly complexity compared to standard TO-220 devices. Always verify tab-to-collector isolation with a multimeter before final assembly of the 2SD2202R.

What is the guaranteed DC current gain (h_FE) range for the 2SD2202R at typical operating conditions?

The 2SD2202R has a specified h_FE range of 80 to 160 when measured at I_C = −1 A and V_CE = −2 V, per SANYO datasheet No. 3249. This gain band enables predictable base drive design - for example, achieving full saturation at I_C = −3 A requires I_B ≥ −0.3 A. The 2SD2202R does not guarantee h_FE outside this test condition.

Can the 2SD2202R be used in linear amplification applications?

The 2SD2202R is characterized and qualified for switching operation, not linear amplification. While its f_T = 20 MHz and h_FE support small-signal use in theory, SANYO explicitly rates it for high-current switching - and its SOA, thermal design, and gain linearity are not validated for analog gain stages. For linear applications, select a device specified for Class-A/B operation; the 2SD2202R should remain in saturated or cutoff states only.

What is the safe operating area (SOA) limit for pulsed operation of the 2SD2202R?

The 2SD2202R supports I_CP = 9 A pulses at V_CE = 50 V for durations ≤10 ms (single pulse), as shown in the SOA graph of datasheet No. 3249. This capability enables handling of motor startup surges and inductive load turn-off spikes. Exceeding these boundaries - even momentarily - risks second breakdown and irreversible damage to the 2SD2202R.

2SD2202R Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-220-3 Full Pack

Packaging:: Bulk

Product Status:: Active

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 5 A

Voltage - Collector Emitter Breakdown (Max):: 80 V

Vce Saturation (Max) @ Ib, Ic:: 400mV @ 300mA, 3A

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 100 @ 1A, 2V

Power - Max:: 2 W

Frequency - Transition:: 20MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220ML

2SD2202R FAQ

1.How can I place an order for 2SD2202R through Aetrix?

Please submit a Request for Quotation (RFQ) for 2SD2202R 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 2SD2202R reliable?

The price and inventory of 2SD2202R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SD2202R is usually 5 days.

3.What payment methods are accepted for 2SD2202R?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SD2202R transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2SD2202R?

2SD2202R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2SD2202R 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 2SD2202R?

For technical support, including 2SD2202R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SD2202R requirements.

6.How does Aetrix verify that 2SD2202R is sourced from the original manufacturer or authorized distributors?

All 2SD2202R 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 2SD2202R meets industry standards.

7.What is the process for return or replacement of 2SD2202R?

All 2SD2202R units undergo pre-shipment inspection (PSI). If there is an issue with 2SD2202R, 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 2SD2202R part is unused and in its original packaging.

Return procedure for 2SD2202R:

1.Submit a request within 90 days.

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

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