My Inquiry
My Account
Diodes Incorporated 1N4003L-T
- Part No.:
- 1N4003L-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4003L-T.pdf
- Description:
- DIODE GEN PURP 200V 1A DO41
- Quantity:
- Payment:
- Shipping:
Inventory:9,757
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N4003L-T from Diodes Incorporated is a general-purpose silicon rectifier diode in DO-41 package, rated for 200 V peak repetitive reverse voltage, 1.0 A average forward current at +75°C, and 30 A non-repetitive surge current. It features low forward voltage drop (1.0 V @ 1.0 A), low reverse leakage (5.0 µA @ 25°C), and molded plastic case with cathode band polarity marking.
For engineers reviewing the 1N4003L-T datasheet, 1N4003L-T pinout, 1N4003L-T application, or 1N4003L-T equivalent, key selection criteria include DC blocking voltage rating, thermal resistance (100 K/W), junction capacitance (15 pF @ 4 V), surge capability, and RoHS-compliant tin-plated leads suitable for automated tape-and-reel assembly.
Technical Context
This axial-leaded rectifier operates in single-phase half-wave configurations with resistive or inductive loads at 60 Hz. Its diffused PN junction enables stable conduction under transient overloads, while the 94V-0 flammability-rated plastic case ensures mechanical robustness in industrial power supplies.
Thermal performance is defined by junction-to-ambient resistance of 100 K/W under standard lead conditions (9.5 mm from case), and junction temperature must remain within −65°C to +150°C for reliable operation across ambient environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum peak reverse voltage the diode blocks without breakdown |
| IO @ TA=+75°C | 1.0 A - Continuous average forward current derated for safe thermal operation |
| IFSM | 30 A - Non-repetitive surge current tolerance for 8.3 ms half-sine waveform |
| VFM @ IF=1.0A | 1.0 V - Forward voltage drop determining conduction loss in power path |
| IRM @ 25°C | 5.0 µA - Reverse leakage current affecting standby power and high-impedance circuits |
| RθJA | 100 K/W - Thermal resistance defining junction temperature rise per watt dissipated |
| Cj @ 4V, 1MHz | 15 pF - Junction capacitance influencing high-frequency switching behavior and noise coupling |
Pinout & Package
Package: DO-41 molded plastic case, axial lead configuration, cathode indicated by band. Weight ≈ 0.30 g. UL 94V-0 flammability rating, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to AC input or lower-potential side in rectification path |
| Cathode | Forward current exit point | Marked with band; connects to load or filter capacitor positive terminal |
Key Features
| Feature | Design Value |
|---|---|
| Diffused junction construction | Enables uniform current distribution and stable surge handling without localized hot spots |
| 30 A surge rating | Supports inrush current during power-up in transformer-based AC/DC supplies |
| Bright tin-plated leads | Ensures solderability per MIL-STD-202 Method 208 and compatibility with lead-free reflow |
| RoHS-compliant finish | Fulfills EU Directive 2002/95/EC requirements with applicable exemptions documented |
Applications
| AC/DC Power Adapter Input Stage | Industrial Control Board Rectification |
|---|---|
Use Scenario: Converts 120/230 VAC mains to pulsating DC before filtering and regulation in wall adapters. IC Role / Device Role / Timing Role: General-purpose rectifier performing half-wave or full-wave bridge function. Use Value: 200 V VRRM safely withstands peak line voltage (≈170 V for 120 VAC, ≈325 V for 230 VAC) with margin. | Use Scenario: Provides DC bias for relay coils, optocouplers, and logic-level interface circuitry on PLC I/O modules. IC Role / Device Role / Timing Role: Discrete rectifier converting auxiliary AC sensing signals to unidirectional DC. Use Value: 1.0 A IO rating supports sustained coil drive; 100 K/W RθJA allows operation without heatsinking at moderate loads. |
| LED Driver Bulk Rectification | Automotive Aftermarket Lighting Supply |
Use Scenario: Rectifies transformer output in constant-current LED drivers for commercial lighting. IC Role / Device Role / Timing Role: Primary-side rectifier in isolated flyback or forward converter secondary stage. Use Value: Low 1.0 V VFM minimizes conduction loss and thermal stress in thermally constrained LED housing. | Use Scenario: Converts alternator output or battery-charged AC sources in vehicle-mounted lighting systems. IC Role / Device Role / Timing Role: Discrete rectifier in low-cost, non-safety-critical auxiliary power rails. Use Value: 30 A IFSM handles engine cranking transients; −65°C to +150°C operating range matches under-hood thermal envelope. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4003G-T | Same electrical specs; green molding compound per Diodes Inc. environmental policy | No functional difference; used where halogen-free material compliance is required | Select when RoHS + halogen-free certification is mandated |
| S1M-T | Higher surge rating (50 A), lower RθJA (75 K/W), same VRRM and IO | Better thermal performance and transient resilience in high-reliability designs | Prefer for new designs requiring improved surge margin or thermal headroom |
Compared with 1N4003L-T, S1M-T offers superior surge and thermal performance but requires layout verification for lead spacing; 1N4003G-T is a direct material-substitution variant with identical electrical behavior and enhanced environmental compliance.
Availability
1N4003L-T is available at Aetrix Electronics and suitable for AC/DC power adapters, industrial control boards, LED driver bulk rectification, and automotive aftermarket lighting supplies requiring stable component supply and tape-and-reel packaging for automated assembly.
Supply support for 1N4003L-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 1N400x series belongs to Diodes' general-purpose rectifier product line, engineered for cost-sensitive, high-volume AC/DC conversion in consumer, industrial, and automotive auxiliary power applications.
FAQ
What is the maximum junction temperature for continuous operation of the 1N4003L-T?
The 1N4003L-T has a maximum junction temperature of +150°C, with an operating and storage temperature range spanning −65°C to +150°C. This rating assumes proper thermal management and adherence to the derated forward current curve, especially above +75°C ambient.
Is the 1N4003L-T suitable for capacitive-load applications?
No - the datasheet explicitly states that for capacitive loads, the average rectified output current must be derated by 20%. This accounts for higher peak currents and increased thermal stress caused by capacitor charging transients in smoothing filter stages.
How does the 1N4003L-T differ from the 1N4007L-T in terms of reverse voltage capability?
The 1N4003L-T is rated for 200 V peak repetitive reverse voltage (VRRM), whereas the 1N4007L-T is rated for 1000 V VRRM. Both share identical forward characteristics (1.0 A IO, 1.0 V VFM, 30 A IFSM), but the 1N4007L-T is selected for higher-voltage AC line inputs or isolation barriers.
Does the 1N4003L-T have a specified junction capacitance, and how is it measured?
Yes - typical junction capacitance is 15 pF, measured at 1.0 MHz with 4.0 V DC reverse bias applied. This value impacts high-frequency noise coupling and switching behavior in fast-switching or RF-adjacent circuits, though the device is not intended for such use cases.
1N4003L-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 1 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-41
- Operating Temperature - Junction:
- -65°C ~ 150°C
1N4003L-T FAQ
1.How can I place an order for 1N4003L-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4003L-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 1N4003L-T reliable?
The price and inventory of 1N4003L-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4003L-T is usually 5 days.
3.What payment methods are accepted for 1N4003L-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4003L-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4003L-T?
1N4003L-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4003L-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 1N4003L-T?
For technical support, including 1N4003L-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4003L-T requirements.
6.How does Aetrix verify that 1N4003L-T is sourced from the original manufacturer or authorized distributors?
All 1N4003L-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 1N4003L-T meets industry standards.
7.What is the process for return or replacement of 1N4003L-T?
All 1N4003L-T units undergo pre-shipment inspection (PSI). If there is an issue with 1N4003L-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 1N4003L-T part is unused and in its original packaging.
Return procedure for 1N4003L-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4003L-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…
