My Inquiry
My Account
Diodes Incorporated RL203-T
- Part No.:
- RL203-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
RL203-T.pdf
- Description:
- DIODE GEN PURP 200V 2A DO15
- Quantity:
- Payment:
- Shipping:
Inventory:8,862
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
RL203-T from Diodes Incorporated is a 2.0A, 200V general-purpose silicon rectifier diode in DO-15 package, featuring 1.0V max forward voltage at 2.0A DC, 70A non-repetitive surge current, and 5.0mA max reverse leakage at 25°C - used in AC/DC power supplies, adapter front-ends, and industrial control power stages.
For engineers reviewing the RL203-T datasheet, RL203-T pinout, RL203-T application, or RL203-T equivalent, key selection criteria include peak reverse voltage rating (200V), thermal resistance (40°C/W), junction capacitance (40pF @ 4V), derating behavior above 50°C ambient, and U/L 94V-0 flammability compliance for safety-critical power entry designs.
Technical Context
This axial-lead rectifier operates in single-phase, half-wave configurations with resistive or inductive loads at 60Hz. Its junction design delivers low forward voltage drop and controlled reverse recovery characteristics suitable for line-frequency rectification without snubbers in moderate-speed switching applications.
Rated for -65°C to +150°C operating temperature, it uses a color-banded cathode marking and achieves 40°C/W junction-to-case thermal resistance. The DO-15 molded plastic case meets UL 94V-0 flammability standards and supports manual or wave soldering per MIL-STD-202 Method 208.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive peak reverse voltage; defines safe blocking capability in AC line applications. |
| I(AV) | 2.0 A - Average forward rectified current at 50°C ambient with 9.5mm lead length; sets continuous power handling limit. |
| VF @ 2.0A | 1.0 V - Forward voltage drop at rated DC current; directly impacts conduction loss and thermal rise in power stage. |
| IFSM | 70 A - Non-repetitive surge current for 8.3ms half-sine; determines robustness against inrush or fault transients. |
| IR @ 25°C | 5.0 mA - Max DC reverse current at rated VDC; affects standby power loss and leakage-sensitive circuits. |
| RθJC | 40 °C/W - Junction-to-case thermal resistance; enables thermal modeling when mounted to heatsink or PCB copper. |
| CJ @ 4V | 40 pF - Typical junction capacitance at 4V reverse bias; influences EMI filtering and high-frequency noise coupling. |
Pinout & Package
DO-15 molded plastic axial-leaded package with cathode indicated by color band. Approximate weight: 0.4 g. Mountable in any orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to AC source or transformer secondary; must withstand full surge current and thermal stress. |
| Cathode | Forward current exit point | Marked with color band; connects to bulk capacitor or downstream regulator input; carries full load current. |
Key Features
| Feature | Design Value |
|---|---|
| Low VF at rated current | 1.0 V max at 2.0A ensures <1.2W conduction loss, reducing heatsink requirements in compact adapters. |
| High IFSM rating | 70A surge capacity handles cold-start inrush into large electrolytic capacitors without degradation. |
| UL 94V-0 plastic case | Flame-retardant housing satisfies safety agency requirements for Class II power supplies and industrial equipment. |
| Wide temperature range | -65°C to +150°C operation supports deployment in automotive under-hood, outdoor, or high-ambient industrial environments. |
Applications
| AC/DC Wall Adapters | Industrial PLC Power Inputs |
|---|---|
Use Scenario: Rectifying 50/60Hz transformer output in universal-input 5–24V AC/DC adapters. IC Role / Device Role / Timing Role: Primary-side unidirectional current converter; blocks reverse voltage while conducting forward current during positive half-cycles. Use Value: 1.0V VF minimizes heat generation in sealed enclosures; DO-15 form factor allows automated through-hole insertion and wave soldering. | Use Scenario: Input-stage rectification for 24VDC power rails in programmable logic controllers. IC Role / Device Role / Timing Role: Line-frequency AC-to-DC conversion feeding bulk capacitor and DC/DC converters. Use Value: 70A IFSM withstands motor contactor switching transients; -65°C to +150°C rating ensures reliability across factory floor temperature extremes. |
| LED Driver Front-Ends | Appliance Control Board Supplies |
Use Scenario: Bridge rectifier leg in constant-current LED drivers for commercial lighting fixtures. IC Role / Device Role / Timing Role: Half-wave rectification of low-voltage AC (e.g., 12VAC) before smoothing and regulation. Use Value: 40pF junction capacitance limits high-frequency noise injection into sensitive analog dimming circuits. | Use Scenario: Power supply input rectification in washing machine or HVAC control boards. IC Role / Device Role / Timing Role: Converts mains-derived low-voltage AC to DC for microcontroller and sensor subsystems. Use Value: UL 94V-0 case prevents flame propagation during overvoltage faults; 0.4g weight supports vibration-resistant mounting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar general-purpose rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 2A03G | Same 200V VRRM and 2A I(AV), but in DO-204AL (SMA) surface-mount package; VF = 1.1V @ 2A. | Requires SMT reflow instead of through-hole assembly; lower profile but no axial lead mechanical strain relief. | Select for space-constrained PCBs where automated pick-and-place is preferred over wave soldering. |
| RS203M | 200V VRRM, 2A I(AV), but faster recovery (trr ≈ 2.5μs vs. RL203-T's ~2μs unspecified); VF = 1.15V @ 2A. | Better suited for higher-frequency flyback or quasi-resonant converters where reverse recovery matters. | Choose only if operating above 10kHz switching or requiring reduced switching loss in hybrid topologies. |
Compared with RL203-T, 2A03G offers identical electrical ratings in a smaller SMT footprint but sacrifices mechanical robustness and thermal path flexibility, while RS203M trades slightly higher VF for improved dynamic performance - neither is pin-compatible, and both require layout and process adaptation.
Availability
RL203-T is available at Aetrix Electronics and suitable for AC/DC power supplies, industrial control systems, and appliance power inputs requiring stable component supply and long-term manufacturability assurance.
Supply support for RL203-T 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.
The RL series belongs to Diodes' general-purpose rectifier product line, engineered for cost-effective, reliable line-frequency AC/DC conversion in consumer, industrial, and infrastructure power applications.
FAQ
Is RL203-T suitable for use in new designs?
No - Diodes Incorporated explicitly marks RL203-T as "DISCONTINUED, NOT RECOMMENDED FOR NEW DESIGNS" in its official datasheet (DS28005 Rev. 7). It remains available for legacy repair and continuity, but new designs should migrate to the recommended replacement series: 2A01G–2A07G, which offer identical ratings in modern DO-204AL packages with enhanced manufacturability.
What is the maximum allowable lead temperature during soldering?
The RL203-T leads are specified as solderable per MIL-STD-202, Method 208. This permits a maximum soldering temperature of 260°C for up to 10 seconds during hand or wave soldering. Exceeding this may damage the internal die bond or compromise the hermeticity of the molded case.
Does RL203-T have a specified reverse recovery time (trr)?
No - the official DS28005 datasheet does not specify reverse recovery time for RL203-T. It is characterized as a general-purpose, slow-recovery rectifier intended for 50/60Hz line-frequency operation, not high-frequency switching. For trr-critical applications, Diodes recommends fast-recovery alternatives like RS203M or UF203.
Can RL203-T be used in parallel for higher current handling?
Not recommended without external balancing - RL203-T has no built-in current-sharing features. Forward voltage variation between units can cause uneven current distribution, leading to thermal runaway. For >2A average current, use a single higher-rated device (e.g., RL303, 3A) or consult Diodes' application guidance on forced-air-cooled parallel configurations with matched VF bins.
RL203-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-204AC, DO-15, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 2 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-15
- Operating Temperature - Junction:
- -65°C ~ 150°C
RL203-T FAQ
1.How can I place an order for RL203-T through Aetrix?
Please submit a Request for Quotation (RFQ) for RL203-T 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 RL203-T reliable?
The price and inventory of RL203-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RL203-T is usually 5 days.
3.What payment methods are accepted for RL203-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RL203-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RL203-T?
RL203-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RL203-T 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 RL203-T?
For technical support, including RL203-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RL203-T requirements.
6.How does Aetrix verify that RL203-T is sourced from the original manufacturer or authorized distributors?
All RL203-T 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 RL203-T meets industry standards.
7.What is the process for return or replacement of RL203-T?
All RL203-T units undergo pre-shipment inspection (PSI). If there is an issue with RL203-T, 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 RL203-T part is unused and in its original packaging.
Return procedure for RL203-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RL203-T Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
