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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Taiwan Semiconductor Corporation 1N5397G

Name: 1N5397G
Brand: Taiwan Semiconductor Corporation
SKU: 1N5397G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1N5397G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-204AC, DO-15, Axial

Datasheet:: 1N5397G.pdf

Description:: DIODE GEN PURP 600V 1.5A DO204AC

Quantity:: RFQ Add To RFQ list

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Inventory:6,980

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Product details

Overview

1N5397G from Taiwan Semiconductor is a general-purpose silicon rectifier diode rated for 1000 V peak repetitive reverse voltage (V_RRM), 1.5 A average forward current (I_F(AV)), and 30 A non-repetitive peak forward surge current (I_FSM). It operates across –55 °C to +150 °C junction temperature and is used in AC/DC power supply input stages, transformerless power supplies, and low-frequency rectification.

For engineers reviewing the 1N5397G datasheet, 1N5397G pinout, 1N5397G application, or 1N5397G equivalent, key selection criteria include its 1.2 V typical forward voltage at 1.5 A, 5 μA maximum reverse leakage at 1000 V, DO-15 axial package with 25.4 mm minimum lead length, and compliance with JESD201 Class 2 vibration requirements.

Technical Context

The 1N5397G belongs to the 1N5391G–1N5399G family of standard recovery rectifiers with soft reverse recovery characteristics. Its 1.5 A I_F(AV) rating assumes 75 °C ambient with free-air convection and no heatsink; derating applies above 75 °C. The device exhibits 1.2 V V_F at 1.5 A and 25 °C, and maintains ≤5 μA I_R up to 1000 V at 125 °C.

Thermal resistance from junction-to-ambient (R_θJA) is 65 °C/W in free air, and the device supports 8.3 ms single half-sine wave surge testing per IEC 61000-4-5. It is not optimized for high-frequency switching but suited for line-frequency (50/60 Hz) and low-kHz applications where cost-effective, robust rectification is required.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	1000 V - Maximum repetitive reverse voltage before breakdown; defines safe AC input voltage handling (e.g., 700 V RMS line).
I_F(AV)	1.5 A - Continuous DC forward current capability at 75 °C ambient; requires thermal management above this temperature.
V_F @ 1.5 A	1.2 V typical - Forward voltage drop determining conduction loss (≈1.8 W dissipation at full load).
I_R @ 1000 V	≤5 μA at 125 °C - Low reverse leakage ensures minimal standby power loss in high-impedance circuits.
I_FSM	30 A - Peak non-repetitive surge current for 8.3 ms half-sine; supports cold-start inrush in capacitive-input supplies.
T_J Range	–55 °C to +150 °C - Enables operation in industrial and automotive under-hood environments without derating.

Pinout & Package

Package: DO-15 axial lead, glass-passivated silicon die, green epoxy compound, 25.4 mm minimum lead length, Ø3.6 mm body diameter.

Pin/Terminal	Circuit Role	Design Meaning
Anode (A)	Forward current entry point	Connected to AC source or transformer secondary; polarity must be observed to prevent reverse conduction.
Cathode (K)	Forward current exit point	Marked with band; ties to positive rail or filter capacitor; determines output polarity in bridge or half-wave configurations.

Key Features

Feature	Design Value
Standard recovery time	~2 μs - Balances low switching loss and EMI control for 50/60 Hz and <1 kHz rectification.
Soft reverse recovery	Reduces voltage overshoot and ringing during turn-off, easing snubber design in transformer-coupled supplies.
High surge capability	30 A I_FSM withstands repeated cold-start surges in unregulated linear power supplies.
Wide operating temperature	Rated from –55 °C to +150 °C - Suitable for outdoor, industrial, and automotive auxiliary power modules.

Applications

AC/DC Wall Adapters	Industrial Control Power Supplies
Use Scenario: Rectifying 50/60 Hz AC from mains or transformer secondaries into DC for low-power logic and analog circuitry. IC Role / Device Role / Timing Role: Primary rectifier in half-wave or full-wave configurations; provides unidirectional current path before bulk capacitance. Use Value: 1.2 V V_F minimizes conduction loss at 1.5 A, while 1000 V V_RRM allows direct use with 230 V AC inputs including transients.	Use Scenario: Providing isolated DC bias for PLC I/O modules, relay drivers, and sensor signal conditioning circuits. IC Role / Device Role / Timing Role: Input-stage rectifier in ruggedized, long-life power supplies requiring >10-year field reliability. Use Value: –55 °C to +150 °C T_J range and 5 μA I_R at 125 °C ensure stable operation in unventilated enclosures and high-ambient industrial settings.
Automotive Auxiliary Power	LED Driver Input Stages
Use Scenario: Converting alternator output or battery-charged AC sources to DC for cabin electronics and infotainment subsystems. IC Role / Device Role / Timing Role: Line-frequency rectifier in non-isolated buck-derived or capacitive-dropper auxiliary supplies. Use Value: 30 A I_FSM handles engine cranking surges; DO-15 mechanical robustness meets automotive vibration standards (JESD201 Class 2).	Use Scenario: Rectifying AC line voltage prior to constant-current LED driver ICs in commercial lighting fixtures. IC Role / Device Role / Timing Role: First-stage power conversion element feeding bulk storage capacitor and downstream switching regulator. Use Value: 1000 V V_RRM accommodates 277 V AC line with margin; green compound ensures RoHS-compliant manufacturing and reflow compatibility.

AC/DC Wall Adapters

Industrial Control Power Supplies

Use Scenario: Rectifying 50/60 Hz AC from mains or transformer secondaries into DC for low-power logic and analog circuitry.

IC Role / Device Role / Timing Role: Primary rectifier in half-wave or full-wave configurations; provides unidirectional current path before bulk capacitance.

Use Value: 1.2 V V_F minimizes conduction loss at 1.5 A, while 1000 V V_RRM allows direct use with 230 V AC inputs including transients.

Use Scenario: Providing isolated DC bias for PLC I/O modules, relay drivers, and sensor signal conditioning circuits.

IC Role / Device Role / Timing Role: Input-stage rectifier in ruggedized, long-life power supplies requiring >10-year field reliability.

Use Value: –55 °C to +150 °C T_J range and 5 μA I_R at 125 °C ensure stable operation in unventilated enclosures and high-ambient industrial settings.

Automotive Auxiliary Power

LED Driver Input Stages

Use Scenario: Converting alternator output or battery-charged AC sources to DC for cabin electronics and infotainment subsystems.

IC Role / Device Role / Timing Role: Line-frequency rectifier in non-isolated buck-derived or capacitive-dropper auxiliary supplies.

Use Value: 30 A I_FSM handles engine cranking surges; DO-15 mechanical robustness meets automotive vibration standards (JESD201 Class 2).

Use Scenario: Rectifying AC line voltage prior to constant-current LED driver ICs in commercial lighting fixtures.

IC Role / Device Role / Timing Role: First-stage power conversion element feeding bulk storage capacitor and downstream switching regulator.

Use Value: 1000 V V_RRM accommodates 277 V AC line with margin; green compound ensures RoHS-compliant manufacturing and reflow compatibility.

Equivalent & Alternatives

The following parts are listed as comparable options for similar rectifier diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N5408	3 A I_F(AV), same V_RRM (1000 V), higher V_F (1.3 V typ.), DO-201AD package	Higher current capacity but larger footprint and higher conduction loss at 1.5 A	Select 1N5408 only when >1.5 A continuous current or higher surge margin is required; PCB layout change needed.
RS1M	1 A I_F(AV), 1000 V V_RRM, faster recovery (~500 ns), SMA surface-mount package	Lower current rating and SMT-only mounting; unsuitable for through-hole legacy designs	Choose RS1M for space-constrained, high-density boards where 1 A suffices and reflow assembly is available.

Compared with 1N5397G, 1N5408 offers higher current headroom at the cost of larger size and slightly higher losses, while RS1M enables miniaturization but sacrifices current capability and requires SMT infrastructure-neither is pin-compatible, and both demand layout revision.

Availability

1N5397G is available at Aetrix Electronics and suitable for AC/DC power supplies, industrial control systems, and automotive auxiliary power modules requiring stable component supply and long-term manufacturability.

Supply support for 1N5397G 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 semiconductor manufacturer specializing in discrete power devices, rectifiers, and protection components since 1979.

The 1N5391G–1N5399G series was developed for cost-sensitive, high-reliability line-frequency rectification in consumer, industrial, and automotive power supplies-emphasizing thermal stability, surge resilience, and long-term parametric consistency.

FAQ

What is the maximum junction temperature rating for the 1N5397G?

The 1N5397G has a maximum junction temperature (T_J) rating of +150 °C, with guaranteed operation down to –55 °C. This wide range supports deployment in sealed industrial enclosures and automotive under-hood locations. Derating of I_F(AV) begins above 75 °C ambient, and R_θJA is specified at 65 °C/W in free air. The 1N5397G maintains ≤5 μA reverse leakage at 1000 V up to 125 °C, confirming thermal stability critical for 1N5397G reliability in sustained high-temperature operation.

Is the 1N5397G suitable for high-frequency switching applications?

No, the 1N5397G is a standard recovery rectifier with ~2 μs reverse recovery time, optimized for 50/60 Hz and low-kHz line-frequency rectification-not for PWM or SMPS switching above 10 kHz. Using 1N5397G in high-frequency circuits increases switching loss and EMI due to slow carrier recombination. For such applications, fast recovery (e.g., FR107) or ultrafast (e.g., UF4007) diodes are recommended instead of 1N5397G.

What does the 'G' suffix indicate in 1N5397G?

The 'G' suffix in 1N5397G denotes green compound packaging-RoHS-compliant, halogen-free epoxy conforming to JEDEC standards. It replaces older lead-based encapsulants and supports lead-free reflow soldering. All 1N5391G–1N5399G variants share this marking convention, and the 'G' is part of the official orderable number, not a revision code. The 1N5397G date code follows YWW format (e.g., '2309' = 2023, week 09).

How does the 1N5397G compare to the 1N5399G?

The 1N5397G and 1N5399G share identical DO-15 package, thermal specs, and surge ratings, differing only in peak repetitive reverse voltage: 1N5397G is rated at 1000 V V_RRM, while 1N5399G is rated at 1000 V V_RRM-they are electrically identical in this parameter. Both exhibit 1.2 V V_F at 1.5 A and 5 μA I_R at 125 °C. The 1N5397G is functionally interchangeable with 1N5399G in all documented applications where 1000 V rating suffices.

Can the 1N5397G replace a 1N4007 in existing designs?

Yes, the 1N5397G is a direct functional replacement for the 1N4007 in most line-frequency rectifier roles: both are DO-41/DO-15 axial diodes rated at 1000 V V_RRM and 1.5 A I_F(AV). However, the 1N5397G uses green compound and has tighter V_F distribution (1.2 V typ. vs. 1N4007's 1.1 V min), and its DO-15 body is slightly larger. Layout compatibility should be verified, but the 1N5397G delivers equivalent performance with enhanced environmental compliance over the legacy 1N4007.

1N5397G 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):: 600 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 @ 600 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

1N5397G FAQ

1.How can I place an order for 1N5397G through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N5397G 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 1N5397G reliable?

The price and inventory of 1N5397G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5397G is usually 5 days.

3.What payment methods are accepted for 1N5397G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5397G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N5397G?

1N5397G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N5397G 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 1N5397G?

For technical support, including 1N5397G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5397G requirements.

6.How does Aetrix verify that 1N5397G is sourced from the original manufacturer or authorized distributors?

All 1N5397G 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 1N5397G meets industry standards.

7.What is the process for return or replacement of 1N5397G?

All 1N5397G units undergo pre-shipment inspection (PSI). If there is an issue with 1N5397G, 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 1N5397G part is unused and in its original packaging.

Return procedure for 1N5397G:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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