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Taiwan Semiconductor Corporation 1N5400G
- Part No.:
- 1N5400G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1N5400G.pdf
- Description:
- DIODE GEN PURP 50V 3A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:5,129
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Product details
Overview
1N5400G from Taiwan Semiconductor is a glass-passivated standard silicon rectifier diode rated for 3 A average forward current, 50 V repetitive peak reverse voltage (VRRM), and 125 A non-repetitive surge current (IFSM). It features low forward voltage drop (≤1.1 V at 3 A, 25°C), high thermal reliability (TJ up to 150°C), and is used in DC-DC converters and switching-mode power supplies.
For engineers reviewing the 1N5400G datasheet, 1N5400G pinout, 1N5400G application, or 1N5400G equivalent, key selection factors include its DO-201AD package, cathode-band polarity marking, 45°C/W junction-to-ambient thermal resistance, and AEC-Q101 qualification availability (1N5400GH variant).
Technical Context
The 1N5400G is a single-die, axial-leaded, standard recovery rectifier with a PN junction fabricated using glass passivation for enhanced moisture and contamination resistance. Its 50 V VRRM rating targets low-voltage DC input stages in offline and isolated power supplies.
Thermal performance is defined by RθJA = 45°C/W and RθJC = 15°C/W, enabling reliable operation at full 3 A load under natural convection in typical PCB layouts. Reverse leakage remains ≤5 µA at 25°C and ≤100 µA at 125°C, supporting stable blocking in warm environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse voltage before breakdown; sets upper limit for DC bus or transformer secondary voltage handling |
| IF | 3 A - Continuous average forward current; defines steady-state power dissipation capability (PD ≈ 3.3 W at VF = 1.1 V) |
| IFSM | 125 A - Peak non-repetitive surge current (8.3 ms half-sine); supports inrush and fault-current tolerance in SMPS input stages |
| VF | ≤1.1 V @ 3 A, 25°C - Low conduction loss improves efficiency and reduces heatsink requirements in 5–24 V output converters |
| TJ max | 150°C - Maximum junction temperature; enables operation in sealed enclosures or high-ambient industrial environments |
| RθJA | 45°C/W - Thermal resistance from junction to ambient; determines required PCB copper area or airflow for thermal management |
| CJ | 25 pF @ 4 V, 1 MHz - Junction capacitance affects high-frequency switching noise and EMI filter design in flyback/snubber circuits |
Pinout & Package
Package: DO-201AD - Axial-leaded, molded plastic case with tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance. Cathode indicated by a single band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward current entry point | Connected to lower-potential side (e.g., transformer secondary center-tap or bridge input); must withstand surge and thermal stress |
| Cathode (banded end) | Forward current exit / reverse blocking terminal | Connected to output rail or filter capacitor; polarity marking ensures correct orientation in series/parallel configurations |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Prevents moisture ingress and surface leakage, improving long-term reliability in humid or contaminated environments |
| AEC-Q101 qualified option (1N5400GH) | Validated for automotive under-hood applications including engine control modules and body electronics |
| UL 94V-0 molding compound | Self-extinguishing encapsulation meets safety standards for industrial and consumer power supplies |
| 1.20 g mass | Enables consistent automated placement and reflow profiling without lead deformation or tombstoning |
Applications
| DC-DC Converter Input Stage | Switching Mode Inverter Output Rectification |
|---|---|
Use Scenario: Rectifying unregulated DC from boost or buck-boost pre-regulators in telecom power modules. IC Role / Device Role / Timing Role: Standard recovery rectifier providing unidirectional current flow and voltage step-down via conduction loss. Use Value: 1.1 V VF minimizes conduction loss at 3 A, sustaining >92% efficiency in 12 V input, 5 V output designs. | Use Scenario: Output-side AC-to-DC conversion in single-phase H-bridge inverters for motor drives. IC Role / Device Role / Timing Role: Freewheeling and commutation path for inductive loads during PWM dead-time intervals. Use Value: 125 A IFSM handles motor stall currents without failure, ensuring robustness during transient overloads. |
| General-Purpose Power Supply Bridge | Industrial Control System Auxiliary Rail |
Use Scenario: Discrete diode in 4-diode full-wave bridge for 24 VAC-to-DC wall adapters and PLC power inputs. IC Role / Device Role / Timing Role: Half-wave rectifier element in discrete bridge configuration; operates at line frequency (50/60 Hz). Use Value: DO-201AD package allows direct through-hole mounting on cost-sensitive PCBs with no thermal vias required below 2 A average load. | Use Scenario: Providing isolated +15 V bias supply for op-amps and isolation amplifiers in factory automation I/O modules. IC Role / Device Role / Timing Role: Secondary-side rectifier in flyback converter delivering clean, low-noise auxiliary power. Use Value: ≤5 µA reverse leakage at 25°C prevents loading of high-impedance feedback networks, preserving regulation accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar standard rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5400 | No "G" suffix; older JEDEC-spec version without green compound or halogen-free compliance per IEC 61249-2-21 | Lacks RoHS/halogen-free documentation; not suitable for EU or automotive markets requiring full material declarations | Select 1N5400G when compliance with modern environmental and safety standards is mandatory |
| STTH3L06 | Ultrafast recovery (trr ≈ 50 ns vs. ~2 µs for 1N5400G); higher VF (1.7 V) but lower Qrr | Better suited for high-frequency (>100 kHz) PFC or resonant topologies where reverse recovery loss dominates | Choose STTH3L06 only if operating frequency exceeds 50 kHz and EMI filtering permits faster switching |
Compared with 1N5400 and STTH3L06, the 1N5400G delivers optimal balance of low VF, proven reliability, and regulatory compliance for 50–60 Hz and <50 kHz power conversion-without sacrificing manufacturability or thermal margin.
Availability
1N5400G is available at Aetrix Electronics and suitable for DC-DC converters, switching mode inverters, and general-purpose power supplies requiring stable component supply, long-lifecycle support, and RoHS-compliant sourcing.
Supply support for 1N5400G 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power devices, rectifiers, and protection components since 1979.
The 1N5400G belongs to TSC's standard rectifier family designed for cost-effective, high-reliability AC/DC and DC/DC power conversion across industrial, computing, and consumer applications.
FAQ
What is the maximum junction temperature rating for the 1N5400G?
The 1N5400G has a maximum junction temperature (TJ) of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet (Version K2105). This rating allows continuous operation in enclosed industrial enclosures or near heat-generating components, provided thermal design maintains junction temperature below this limit using the specified RθJA = 45°C/W.
Is the 1N5400G RoHS and halogen-free compliant?
Yes, the 1N5400G is RoHS compliant and halogen-free per IEC 61249-2-21, as confirmed in the "Features" and "Ordering Information" sections of the Taiwan Semiconductor datasheet. The "G" suffix explicitly denotes green compound and halogen-free construction, distinguishing it from legacy non-G variants like 1N5400.
Does the 1N5400G have AEC-Q101 qualification?
The base 1N5400G is not AEC-Q101 qualified; however, the variant 1N5400GH (with "H" suffix) is AEC-Q101 qualified and shares identical electrical and thermal specifications. Engineers requiring automotive-grade reliability must specify 1N5400GH-not 1N5400G-for under-hood or safety-critical applications.
What is the forward voltage drop of the 1N5400G at rated current?
The 1N5400G exhibits a maximum forward voltage (VF) of 1.1 V at IF = 3 A and TJ = 25°C, as specified in the "Electrical Specifications" table. This value increases with junction temperature and is measured under pulsed conditions (PW = 0.3 ms) to avoid self-heating effects during test.
What package type does the 1N5400G use, and how is polarity marked?
The 1N5400G uses the DO-201AD axial package with pure tin-plated leads. Polarity is marked by a single cathode band on the banded end of the device body, consistent with JEDEC-standard diode marking conventions and verified in the "Mechanical Data" and "Marking Diagram" sections of the datasheet.
1N5400G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 3 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 5 µA @ 50 V
- Capacitance @ Vr, F:
- 25pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -55°C ~ 150°C
1N5400G FAQ
1.How can I place an order for 1N5400G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5400G 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 1N5400G reliable?
The price and inventory of 1N5400G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5400G is usually 5 days.
3.What payment methods are accepted for 1N5400G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5400G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5400G?
1N5400G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5400G 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 1N5400G?
For technical support, including 1N5400G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5400G requirements.
6.How does Aetrix verify that 1N5400G is sourced from the original manufacturer or authorized distributors?
All 1N5400G 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 1N5400G meets industry standards.
7.What is the process for return or replacement of 1N5400G?
All 1N5400G units undergo pre-shipment inspection (PSI). If there is an issue with 1N5400G, 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 1N5400G part is unused and in its original packaging.
Return procedure for 1N5400G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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