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onsemi 2SD2203R
- Part No.:
- 2SD2203R
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-220-3 Full Pack
- Datasheet:
-
2SD2203R.pdf
- Description:
- TRANS NPN 80V 7A TO-220ML
- Quantity:
- Payment:
- Shipping:
Inventory:9,723
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Product details
Overview
2SD2203R from SANYO is an NPN epitaxial planar silicon power transistor in TO-220ML package, rated for 80 V VCEO, 7 A IC, and 20 W PC at Tc = 25°C, optimized for high-current switching in industrial motor drives and DC-DC converters.
For engineers reviewing the 2SD2203R datasheet, pinout, applications, or equivalent options, key selection criteria include VCE(sat) ≤ −0.4 V at IC = −4 A / IB = −0.4 A, fT = 20 MHz, hFE range of 70–200 at IC = −1 A, and thermal resistance RθJC = 1.2°C/W.
Technical Context
The 2SD2203R operates as a single NPN bipolar junction transistor with epitaxial planar construction, supporting DC and pulsed switching up to 12 A peak collector current (ICP) under 10 ms pulses. Its low saturation voltage enables efficient conduction in high-side switch configurations.
Designed for operation at junction temperatures up to +150°C, it features micaless TO-220ML packaging for direct heatsink mounting without insulating washers, and exhibits stable hFE across −40°C to +120°C ambient conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 80 V - Maximum collector-emitter voltage before breakdown with base open; defines safe operating voltage ceiling in switching applications. |
| IC | 7 A - Continuous DC collector current rating; supports sustained load switching in power supplies and motor control stages. |
| VCE(sat) | −0.4 V @ IC = −4 A, IB = −0.4 A - Low saturation voltage minimizes conduction loss and heat generation during on-state operation. |
| fT | 20 MHz - Transition frequency confirms suitability for medium-speed switching (≤100 kHz PWM) without excessive gain roll-off. |
| hFE | 70–200 @ VCE = −2 V, IC = −1 A - Wide DC current gain range allows flexible base drive design across production lots. |
| RθJC | 1.2°C/W - Junction-to-case thermal resistance enables predictable heatsink sizing when mounted directly to metal surfaces. |
Pinout & Package
2SD2203R uses the SANYO TO-220ML (micaless) package: a 3-lead, through-hole, thermally enhanced variant of TO-220 with uninsulated metal tab for direct heatsink contact. Mounting requires no insulating pad, reducing thermal impedance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Left) | Base | Control terminal; accepts forward-biased current to enable conduction between collector and emitter. |
| 2 (Center) | Collector | Main current input node; electrically connected to the metal tab for low-inductance, high-current path to heatsink. |
| 3 (Right) | Emitter | Main current output node; referenced to system ground or low-side return path in common-emitter configurations. |
Key Features
| Feature | Design Value |
|---|---|
| Low VCE(sat) | −0.4 V at IC = −4 A ensures <1.6 W conduction loss per device, critical for thermal management in compact enclosures. |
| Micaless TO-220ML | Direct metal-tab mounting eliminates insulator thermal barrier, improving RθJA by up to 30% vs standard TO-220 with mica. |
| High ICP | −12 A peak collector current (10 ms pulse) supports surge handling in motor startup and inductive load switching. |
| Wide hFE range | 70–200 at IC = −1 A enables robust base drive design across temperature and process variation without recalibration. |
Applications
| Industrial Motor Drives | DC-DC Converter Switches |
|---|---|
|
Use Scenario: Driving brushed DC motors in conveyor systems and automated valves requiring 5–10 A continuous current. IC Role / Device Role / Timing Role: NPN power switch in common-emitter configuration, controlled by microcontroller GPIO via base resistor network. Use Value: VCE(sat) ≤ −0.4 V limits power dissipation to <2.8 W at 7 A, enabling passive heatsinking in space-constrained cabinets. |
Use Scenario: High-efficiency buck converter primary switch in 24 V to 5 V/10 A industrial power modules. IC Role / Device Role / Timing Role: Main switching transistor operating at 50–100 kHz PWM, synchronized to controller IC timing signals. Use Value: fT = 20 MHz ensures sufficient gain margin for clean turn-on/turn-off transitions, minimizing switching losses. |
| AC/DC Power Supply Output Stages | Solenoid & Relay Drivers |
|
Use Scenario: Secondary-side synchronous rectification or linear pass element in regulated AC/DC supplies for factory equipment. IC Role / Device Role / Timing Role: Linear regulator pass transistor or switched-mode output stage switch, dissipating up to 20 W continuously. Use Value: RθJC = 1.2°C/W allows thermal design with ≤12.5°C/W heatsink to maintain Tj < 125°C at full load. |
Use Scenario: Driving 24 V DC solenoids (15–25 W) in pneumatic control manifolds and safety interlock circuits. IC Role / Device Role / Timing Role: High-current interface between logic-level controller and inductive load, protected by flyback diode. Use Value: ICP = −12 A accommodates 3× inrush current during solenoid pull-in, preventing premature failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN power switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 2SD2118 | Same VCEO (80 V), lower IC (3 A), higher VCE(sat) (−1.0 V @ IC = −2 A). | Limited to ≤3 A loads; unsuitable for 7 A motor drive but acceptable for low-power relay drivers. | Select 2SD2118 only when thermal budget permits higher conduction loss and peak current demand is ≤3 A. |
| MJD127G | Higher VCEO (100 V), same IC (7 A), TO-252 (DPAK) surface-mount package, RθJC = 2.5°C/W. | Requires PCB copper area for thermal management; not drop-in compatible due to SMT vs through-hole footprint. | Choose MJD127G for automated assembly and space-constrained layouts where heatsink mounting is impractical. |
Compared with 2SD2203R, 2SD2118 offers lower cost but reduced current capability and higher conduction loss, while MJD127G provides superior voltage margin and SMT compatibility at the expense of thermal performance and mechanical mounting flexibility.
Availability
2SD2203R is available at Aetrix Electronics and suitable for industrial motor drives, DC-DC converter switches, and AC/DC power supply output stages requiring stable component supply and long-term obsolescence planning.
Supply support for 2SD2203R 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.
The 2SD2203R belongs to SANYO's high-current bipolar transistor product line, engineered specifically for ruggedized industrial switching applications demanding reliability under thermal stress and repetitive surge conditions.
FAQ
What is the maximum junction temperature rating for the 2SD2203R?
The 2SD2203R has a maximum junction temperature (Tj) rating of +150°C, as specified in its Absolute Maximum Ratings table. This allows operation in high-ambient environments such as enclosed motor control cabinets or power supply enclosures, provided thermal design maintains Tj ≤ 150°C under worst-case load and ambient conditions. The 2SD2203R must not be operated beyond this limit to ensure reliability.
Is the 2SD2203R pin-compatible with the 2SB1455 PNP transistor?
No, the 2SD2203R and 2SB1455 are complementary NPN/PNP pairs with identical TO-220ML package pinout (1=Base, 2=Collector, 3=Emitter), but they are not functionally interchangeable due to opposite polarity. Using 2SD2203R in place of 2SB1455 would reverse current flow and disable circuit operation. The 2SD2203R is strictly an NPN device and must be used only in NPN-configured circuits.
Does the 2SD2203R require a heatsink for continuous 7 A operation?
Yes - at IC = 7 A and VCE(sat) ≈ −0.4 V, conduction loss is ~2.8 W. With RθJC = 1.2°C/W and typical RθCA > 10°C/W for unheatsinked mounting, junction temperature would exceed +150°C. A heatsink with RθSA ≤ 12.5°C/W is required to maintain Tj < 125°C at 25°C ambient. The 2SD2203R's micaless tab enables direct attachment to such heatsinks.
What is the typical DC current gain (hFE) of the 2SD2203R at 25°C?
The 2SD2203R exhibits hFE = 70–200 at VCE = −2 V and IC = −1 A, measured at Ta = 25°C. This wide range reflects manufacturing spread and necessitates base drive design accommodating the minimum value (70) to guarantee saturation across all units. The 2SD2203R's hFE remains usable down to −40°C and up to +120°C ambient.
Can the 2SD2203R be used in avalanche mode?
No - the 2SD2203R is not rated or characterized for repetitive avalanche operation. Its Absolute Maximum Ratings specify only VCEO = 80 V with base open, and no energy-rated avalanche specifications (EAS) are provided in the datasheet. Operating the 2SD2203R beyond VCEO, even transiently, risks irreversible damage. Snubber networks or clamping circuits must be used to limit VCE within rating during inductive switching.
2SD2203R 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):
- 7 A
- Voltage - Collector Emitter Breakdown (Max):
- 80 V
- Vce Saturation (Max) @ Ib, Ic:
- 400mV @ 400mA, 4A
- 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:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220ML
2SD2203R FAQ
1.How can I place an order for 2SD2203R through Aetrix?
Please submit a Request for Quotation (RFQ) for 2SD2203R 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 2SD2203R reliable?
The price and inventory of 2SD2203R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SD2203R is usually 5 days.
3.What payment methods are accepted for 2SD2203R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SD2203R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 2SD2203R?
2SD2203R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 2SD2203R 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 2SD2203R?
For technical support, including 2SD2203R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SD2203R requirements.
6.How does Aetrix verify that 2SD2203R is sourced from the original manufacturer or authorized distributors?
All 2SD2203R 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 2SD2203R meets industry standards.
7.What is the process for return or replacement of 2SD2203R?
All 2SD2203R units undergo pre-shipment inspection (PSI). If there is an issue with 2SD2203R, 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 2SD2203R part is unused and in its original packaging.
Return procedure for 2SD2203R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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