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Diodes Incorporated 1N5398S-T
- Part No.:
- 1N5398S-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N5398S-T.pdf
- Description:
- DIODE GEN PURP 800V 1.5A DO41
- Quantity:
- Payment:
- Shipping:
Inventory:9,362
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Product details
Overview
1N5398S-T from Diodes Incorporated is a 1.5A, 800V peak repetitive reverse voltage general-purpose silicon rectifier diode in DO-41 package, featuring 1.1V forward voltage drop at 1.5A, 50A non-repetitive surge rating, and low 5.0μA reverse leakage at 25°C - used in AC/DC input stage rectification for industrial power supplies and LED drivers.
For engineers reviewing the 1N5398S-T datasheet, 1N5398S-T pinout, 1N5398S-T application, or 1N5398S-T equivalent, key selection criteria include VRRM (800V), IF(AV) (1.5A @ 70°C), VFM (1.1V @ 1.5A), IFSM (50A), and thermal resistance (RθJL = 25°C/W).
Technical Context
This device operates as a single-phase, half-wave rectifier under 60Hz resistive or inductive loads, with derating required for capacitive loads (−20% current). It uses planar passivated junction construction for stable reverse characteristics and high reliability across −65°C to +150°C operating range.
Thermal design relies on junction-to-lead resistance of 25°C/W (measured at 9.5mm lead length), enabling direct heatsinking via leads; total capacitance is 20pF at 1MHz/4V reverse bias, supporting moderate-frequency switching applications up to ~100kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - maximum repetitive reverse voltage before breakdown; sets safe AC input voltage limit (e.g., ≤560V RMS) |
| IF(AV) | 1.5 A @ TA = 70°C - average forward current capability; requires thermal management above ambient 70°C |
| VFM | 1.1 V @ IF = 1.5A - forward conduction loss; contributes ~1.65W dissipation at full load |
| IFSM | 50 A (8.3ms half-sine) - surge withstand for cold-start inrush or line transients |
| IRM | 5.0 μA @ 25°C, rated VR - minimal reverse leakage ensures low standby power loss |
| RθJL | 25 °C/W - junction-to-lead thermal resistance; enables direct PCB copper pour heatsinking |
| CT | 20 pF @ 1MHz, 4V - low junction capacitance minimizes switching noise in rectifier snubbers |
Pinout & Package
DO-41 axial-leaded plastic package with cathode band marking; leads are tin-finished, solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to AC source or transformer secondary; must handle full surge current path |
| Cathode | Forward current exit / DC output node | Connected to filter capacitor or load; polarity marked by band; carries full rectified current |
Key Features
| Feature | Design Value |
|---|---|
| Fast switching recovery | Enables efficient operation in 50/60Hz–100kHz rectifier stages without excessive switching loss |
| Low forward voltage drop | 1.1V at 1.5A reduces conduction loss vs. standard 1N400x series (1.2–1.4V) |
| High surge rating | 50A peak supports robustness against line surges and transformer inrush in unregulated supplies |
| RoHS-compliant finish | Tin-plated leads meet EU Directive 2002/95/EC with exemptions for glass and high-temp solder |
| UL 94V-0 molded case | Flame-retardant housing meets safety standards for enclosed industrial power equipment |
Applications
| AC/DC Power Adapter Input Stage | LED Driver Bulk Rectification |
|---|---|
Use Scenario: Converts 120/230VAC mains to pulsating DC prior to bulk capacitor filtering in Class II isolated adapters. IC Role / Device Role / Timing Role: Primary-side rectifier; conducts only during positive half-cycles; defines peak input voltage stress. Use Value: 800V VRRM safely handles 230VAC + 30% line tolerance and transient spikes without avalanche failure. | Use Scenario: Rectifies transformer-coupled or capacitive-dropper AC input in constant-current LED drivers for street lighting. IC Role / Device Role / Timing Role: Unidirectional current path; blocks reverse voltage during negative half-cycle; sets minimum hold-up time. Use Value: 1.5A IF(AV) supports >10W LED loads; low IRM prevents capacitor discharge leakage in standby mode. |
| Industrial Control Power Supply | Relay Driver Power Conditioning |
Use Scenario: Provides DC bus for PLC I/O module power rails in factory automation cabinets with wide ambient temperature swings. IC Role / Device Role / Timing Role: Main rectifier in unregulated linear supply feeding 78xx regulators or DC-DC controllers. Use Value: −65°C to +150°C Tj range ensures operation in non-climate-controlled enclosures; RθJL = 25°C/W allows PCB copper heatsinking. | Use Scenario: Supplies filtered DC to electromagnetic relay coils in HVAC control panels exposed to vibration and humidity. IC Role / Device Role / Timing Role: Isolates AC input from coil circuit; absorbs back-EMF energy during turn-off via freewheeling path. Use Value: 50A IFSM withstands repeated coil de-energization surges; DO-41 mechanical robustness resists board flex fatigue. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar general-purpose rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4007-T | VRRM = 1000V, IF(AV) = 1.0A, VFM = 1.1V @ 1.0A, IFSM = 30A | Lower current rating limits use in >8W continuous loads; higher VRRM offers margin for 277VAC systems | Select when cost sensitivity outweighs current headroom and surge robustness |
| UF4007-T | VRRM = 1000V, IF(AV) = 1.0A, VFM = 1.7V @ 1.0A, trr ≈ 75ns (fast recovery) | Higher VFM increases conduction loss; fast recovery reduces EMI in SMPS PFC stages | Select only where reverse recovery time matters more than forward loss, e.g., flyback snubber diodes |
Compared with 1N4007-T and UF4007-T, the 1N5398S-T delivers higher average current (1.5A vs. 1.0A) and superior surge handling (50A vs. 30A/30A) at identical 1.1V forward drop - making it optimal for thermally constrained, high-reliability 230VAC input rectification.
Availability
1N5398S-T is available at Aetrix Electronics and suitable for industrial power supplies, LED driver designs, and relay-based control systems requiring stable component supply and long-term manufacturability assurance.
Supply support for 1N5398S-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, specializing in high-reliability power management, signal integrity, and protection solutions.
The 1N539x/S series belongs to Diodes' general-purpose rectifier product line, engineered for cost-effective, thermally robust AC/DC conversion in industrial, lighting, and appliance applications.
FAQ
What is the maximum operating temperature for 1N5398S-T?
The 1N5398S-T has an operating junction temperature range of −65°C to +150°C. Its average forward current rating drops to zero at +175°C ambient (per Fig. 1 derating curve), but sustained operation above +150°C risks permanent degradation. Thermal design must maintain Tj ≤ 150°C using RθJL = 25°C/W and adequate PCB copper area.
Is 1N5398S-T compatible with lead-free reflow soldering?
Yes - the 1N5398S-T features tin-plated leads compliant with RoHS Directive 2002/95/EC (with applicable exemptions), and is rated for soldering per MIL-STD-202, Method 208. It withstands standard lead-free reflow profiles (peak 260°C, 10s max), though thermal shock testing is recommended for high-volume production validation.
Can 1N5398S-T replace 1N4007 in existing designs?
Yes, with qualification: both are DO-41 axial diodes with cathode band polarity, but 1N5398S-T offers +50% higher average current (1.5A vs. 1.0A) and +67% higher surge rating (50A vs. 30A) at identical 1.1V VFM. Verify thermal layout can dissipate the extra 0.65W at full load and confirm no overvoltage stress from its lower 800V VRRM vs. 1N4007's 1000V.
Does 1N5398S-T have a specified reverse recovery time?
No - the DS28003 datasheet does not specify trr (reverse recovery time) for the 1N5398S-T. It is characterized as a general-purpose rectifier, not a fast-recovery diode. For applications requiring < 500ns trr (e.g., high-frequency SMPS), consider UF4007-T or ES1J-T instead, which publish measured recovery times.
1N5398S-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):
- 800 V
- Current - Average Rectified (Io):
- 1.5A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 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:
- 20pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-41
- Operating Temperature - Junction:
- -65°C ~ 150°C
1N5398S-T FAQ
1.How can I place an order for 1N5398S-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5398S-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 1N5398S-T reliable?
The price and inventory of 1N5398S-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5398S-T is usually 5 days.
3.What payment methods are accepted for 1N5398S-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5398S-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5398S-T?
1N5398S-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5398S-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 1N5398S-T?
For technical support, including 1N5398S-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5398S-T requirements.
6.How does Aetrix verify that 1N5398S-T is sourced from the original manufacturer or authorized distributors?
All 1N5398S-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 1N5398S-T meets industry standards.
7.What is the process for return or replacement of 1N5398S-T?
All 1N5398S-T units undergo pre-shipment inspection (PSI). If there is an issue with 1N5398S-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 1N5398S-T part is unused and in its original packaging.
Return procedure for 1N5398S-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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