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Taiwan Semiconductor Corporation 1N5398G-T
- Part No.:
- 1N5398G-T
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
1N5398G-T.pdf
- Description:
- 1.5A, 800V, STANDARD RECTIFIER
- Quantity:
- Payment:
- Shipping:
Inventory:4,865
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Product details
Overview
1N5398G-T from Diodes Incorporated is a 1.5A glass passivated silicon rectifier diode in DO-15 package, rated for 800V peak repetitive reverse voltage (VRRM), 1.1V forward voltage at 1.5A, and 50A non-repetitive surge current; used in AC/DC input stage rectification for industrial power supplies and auxiliary power rails.
For engineers reviewing the 1N5398G-T datasheet, 1N5398G-T pinout, 1N5398G-T application, or 1N5398G-T equivalent, key selection criteria include VRRM derating at elevated temperature, IFSM capability under line surge conditions, thermal resistance (RθJA = 80°C/W), and DO-15 mechanical compatibility with legacy through-hole layouts.
Technical Context
This device operates as a single-phase, half-wave rectifier under 60Hz resistive or inductive loads; capacitive loads require 20% current derating. Its glass passivated junction ensures stable reverse leakage (IRM ≤ 5.0 µA at 25°C, ≤200 µA at 100°C) and robust surge tolerance.
The DO-15 package supports lead-free soldering per MIL-STD-202 Method 208, with cathode band polarity marking and UL 94V-0 flammability rating; thermal performance is validated with leads held at ambient temperature at 9.5mm from case per specification note 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - Maximum peak reverse voltage sustainable without breakdown during normal operation |
| IO @ TA=55°C | 1.5 A - Average forward current rating at 55°C ambient, defining continuous power handling in open-frame designs |
| VFM @ IF=1.5A | 1.1 V - Forward voltage drop determining conduction loss and thermal dissipation in rectifier stage |
| IFSM | 50 A - Peak surge current tolerance for 8.3ms half-sine, critical for surviving AC line transients |
| RθJA | 80 °C/W - Junction-to-ambient thermal resistance, used to calculate max junction temperature rise in PCB layout |
| IRM @ 25°C | 5.0 µA - Reverse leakage current at rated DC blocking voltage, affecting standby power in high-impedance circuits |
| CT @ 1MHz | 15 pF - Junction capacitance influencing EMI filtering design and high-frequency switching behavior |
Pinout & Package
Package: DO-15 molded plastic case, 9.5 mm lead length minimum for thermal rating compliance, cathode indicated by band, RoHS-compliant tin finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to AC source or transformer secondary low-side; must withstand full surge current path |
| Cathode | Forward current exit point | Marked with band; connects to bulk capacitor positive rail; defines output polarity in uncontrolled rectifier |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Enhances long-term reliability and moisture resistance vs. epoxy-passivated alternatives in humid environments |
| 50A IFSM rating | Enables use without external surge limiting in 120VAC/240VAC inputs subject to common-mode surges |
| Low IRM (5 µA) | Minimizes reverse-bias power loss in high-voltage hold-up circuits and sensing applications |
| DO-15 mechanical standardization | Ensures direct replacement in existing through-hole power supply footprints without board rework |
| UL 94V-0 flammability | Meets safety agency requirements for enclosure-integrated power stages in industrial equipment |
Applications
| Industrial AC/DC Power Supplies | LED Driver Auxiliary Rectification |
|---|---|
Use Scenario: Full-wave bridge input stage in 24V/48V industrial SMPS with universal AC input (85–265VAC). IC Role / Device Role / Timing Role: Discrete rectifier element converting AC line to pulsating DC prior to bulk capacitor and PFC stage. Use Value: 800V VRRM provides 2× margin over 265VAC peak (375V), enabling robust operation across global mains voltages. | Use Scenario: Secondary-side rectification in isolated flyback LED drivers for street lighting and signage. IC Role / Device Role / Timing Role: Output rectifier delivering regulated DC to LED string, operating at <100kHz switching frequency. Use Value: 1.1V VFM minimizes conduction loss at 1.5A average output, improving efficiency in thermally constrained enclosures. |
| Appliance Control Board Power | Legacy Equipment Field Repair |
Use Scenario: Low-power auxiliary supply (5–12V) on washing machine or HVAC control boards. IC Role / Device Role / Timing Role: Half-wave rectifier feeding linear regulator or small buck converter for MCU and sensor rails. Use Value: DO-15 footprint matches decades-old designs; 1.5A IO supports multiple downstream regulators without redesign. | Use Scenario: Replacement of failed rectifiers in out-of-production test equipment and medical monitors. IC Role / Device Role / Timing Role: Direct-fit discrete component maintaining original BOM integrity and safety certification. Use Value: Glass passivation and UL 94V-0 rating preserve fire safety compliance required for Class I medical devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4007 | 1A IO rating, 1000V VRRM, higher VFM (1.1V @ 1A vs. 1.1V @ 1.5A), same DO-41 package | Limited to ≤1A continuous loads; unsuitable where 1.5A IO headroom is required for thermal margin | Select only if load current remains ≤1A and higher VRRM margin justifies lower current capability |
| RS1M | 1A IO, 1000V VRRM, faster recovery (~500ns), DO-41, higher cost | Better for high-frequency rectification but lacks 1.5A current capacity; not drop-in for thermal-limited designs | Prefer only when fast recovery is needed and current demand is ≤1A; verify thermal design with RθJA = 70°C/W |
Compared with 1N4007 and RS1M, the 1N5398G-T uniquely balances 1.5A continuous current, 800V blocking, and DO-15 compatibility-making it optimal for legacy-replacement rectification where thermal headroom and mechanical fit are primary constraints.
Availability
1N5398G-T is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, LED driver auxiliary rectification, and appliance control board power requiring stable component supply and long-term obsolescence management.
Supply support for 1N5398G-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 centers across Asia and manufacturing in China, Taiwan, and the US.
The 1N539xG series belongs to Diodes' general-purpose rectifier product line, engineered for cost-sensitive, high-volume power conversion applications where reliability, surge robustness, and standardized packaging are essential.
FAQ
Is the 1N5398G-T suitable for new designs?
No-Diodes Incorporated explicitly marks this part as "NOT RECOMMENDED FOR NEW DESIGN" in its official datasheet. It remains viable for legacy repair, maintenance, and continuity programs where DO-15 footprint and 1.5A/800V specs match existing schematics and safety certifications.
What is the maximum allowable ambient temperature for full 1.5A operation?
Full 1.5A average forward current is rated at TA = 55°C with leads held at ambient temperature at 9.5mm from the case. Above 55°C, current must be derated per Figure 1 in the datasheet-e.g., ~1.0A at 100°C ambient-to maintain junction temperature within −65°C to +175°C limits.
Can the 1N5398G-T replace a 1N4007 in an existing circuit?
Yes, mechanically and electrically-with caveats: both are DO-series axial packages (DO-15 vs. DO-41), but DO-15 has larger body and longer leads. Electrical substitution is valid only if circuit current stays ≤1.5A and physical mounting allows DO-15 dimensions; VRRM (800V vs. 1000V) is lower, so verify worst-case line surge margins.
Does the 1N5398G-T meet RoHS and lead-free soldering requirements?
Yes-the device features a lead-free finish compliant with RoHS Directive 2011/65/EU (as revised March 2003), with exemptions applied for glass and high-temperature solder per EU Annex Notes 5 and 7. It is solderable per MIL-STD-202, Method 208, and qualified for reflow and wave soldering processes.
1N5398G-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AC, DO-15, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 800 V
- Current - Average Rectified (Io):
- 1.5A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 1.5 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 5 µA @ 800 V
- Capacitance @ Vr, F:
- 15pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
- Operating Temperature - Junction:
- -55°C ~ 150°C
1N5398G-T FAQ
1.How can I place an order for 1N5398G-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5398G-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 1N5398G-T reliable?
The price and inventory of 1N5398G-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5398G-T is usually 5 days.
3.What payment methods are accepted for 1N5398G-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5398G-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5398G-T?
1N5398G-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5398G-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 1N5398G-T?
For technical support, including 1N5398G-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5398G-T requirements.
6.How does Aetrix verify that 1N5398G-T is sourced from the original manufacturer or authorized distributors?
All 1N5398G-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 1N5398G-T meets industry standards.
7.What is the process for return or replacement of 1N5398G-T?
All 1N5398G-T units undergo pre-shipment inspection (PSI). If there is an issue with 1N5398G-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 1N5398G-T part is unused and in its original packaging.
Return procedure for 1N5398G-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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