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

Taiwan Semiconductor Corporation 1N5399G

Name: 1N5399G
Brand: Taiwan Semiconductor Corporation
SKU: 1N5399G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1N5399G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

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

Datasheet:: 1N5399G.pdf

Description:: DIODE GEN PURP 1.5A DO204AC

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Product details

Overview

1N5399G 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 supplies, input rectification stages, and offline SMPS front-end bridges.

For engineers reviewing the 1N5399G datasheet, 1N5399G pinout, 1N5399G application, or 1N5399G equivalent, key selection criteria include V_RRM margin for line-voltage transients, I_F(AV) derating at elevated ambient temperatures, thermal resistance (R_θJA ≈ 75 °C/W), and DO-15 package mechanical compatibility with legacy through-hole layouts.

Technical Context

The 1N5399G is a single-junction, planar-diffused PN rectifier optimized for high-voltage, medium-current applications. Its 1000 V V_RRM rating supports universal-input (85–265 V_AC) designs, while its 1.5 A I_F(AV) enables use in low-to-mid power adapters and auxiliary power rails without forced air cooling.

Thermal performance is defined by a typical R_θJA of 75 °C/W on FR-4 PCB with 1 in² copper pad, and it sustains 30 A I_FSM for 8.3 ms half-sine surges-sufficient for inrush limiting in unregulated linear supplies and basic switching converters.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	1000 V - Supports 265 V_AC mains with ≥2× safety margin against line spikes
I_F(AV)	1.5 A - Continuous DC output current capability at T_A = 75 °C with standard PCB heatsinking
I_FSM	30 A - Withstands 8.3 ms half-sine surge, adequate for cold-start inrush in ≤30 W supplies
V_F @ 1.5 A	1.2 V max - Forward drop contributes ~1.8 W conduction loss at full load, requiring thermal management
T_J Range	–55 °C to +150 °C - Enables operation in industrial enclosures and automotive under-hood auxiliary circuits
Package	DO-15 - Standard axial-leaded through-hole package with 25.4 mm minimum lead spacing

Pinout & Package

DO-15 package: axial-leaded, glass-passivated silicon rectifier with cathode band marking. Body diameter Ø3.60 mm, length 25.40 mm min, lead diameter 0.90 mm, lead spacing 7.60 mm.

Pin/Terminal	Circuit Role	Design Meaning
Anode (unmarked end)	Forward current entry point	Connects to AC source or transformer secondary; polarity must be observed to prevent reverse breakdown
Cathode (banded end)	Forward current exit / reverse blocking terminal	Connects to positive rail or bridge output; band identifies polarity during manual assembly and visual inspection

Key Features

Feature	Design Value
High V_RRM rating	1000 V enables direct rectification of 230 V_AC mains without series stacking
Robust surge capability	30 A I_FSM handles repeated cold-start surges in unregulated power supplies
Wide operating temperature	–55 °C to +150 °C junction range supports deployment in sealed industrial controllers
DO-15 mechanical standardization	Compatible with legacy wave-solder tooling and automated axial insertion equipment

Applications

AC/DC Power Adapter Input Stage	Industrial PLC Auxiliary Supply
Use Scenario: Rectifying 115/230 V_AC input in wall-wart and open-frame power supplies up to 25 W. IC Role / Device Role / Timing Role: Primary rectifier in single-phase full-wave or voltage-doubler configurations. Use Value: 1000 V V_RRM provides margin against 1.5 kV lightning-induced transients per IEC 61000-4-5.	Use Scenario: Generating isolated +12 V or +24 V auxiliary rails for logic and sensor bias in programmable logic controllers. IC Role / Device Role / Timing Role: Bridge leg component or standalone rectifier feeding linear regulators or buck controllers. Use Value: 150 °C max T_J allows uninterrupted operation inside sealed cabinets with ambient up to 70 °C.
Offline SMPS Bulk Capacitor Charging	AC Motor Control Snubber Network
Use Scenario: Charging bulk electrolytic capacitors after bridge rectification in flyback or forward converter front ends. IC Role / Device Role / Timing Role: Part of discrete bridge or half-wave rectifier feeding PFC or main switch stage. Use Value: 30 A I_FSM accommodates capacitor inrush without degradation over 100,000 cycles.	Use Scenario: Clamping inductive kickback in TRIAC- or relay-driven AC motor control modules. IC Role / Device Role / Timing Role: Freewheeling path for snubber RC networks absorbing turn-off energy. Use Value: Low leakage (<1 μA @ 1000 V) prevents false triggering in high-impedance gate drive circuits.

AC/DC Power Adapter Input Stage

Industrial PLC Auxiliary Supply

Use Scenario: Rectifying 115/230 V_AC input in wall-wart and open-frame power supplies up to 25 W.

IC Role / Device Role / Timing Role: Primary rectifier in single-phase full-wave or voltage-doubler configurations.

Use Value: 1000 V V_RRM provides margin against 1.5 kV lightning-induced transients per IEC 61000-4-5.

Use Scenario: Generating isolated +12 V or +24 V auxiliary rails for logic and sensor bias in programmable logic controllers.

IC Role / Device Role / Timing Role: Bridge leg component or standalone rectifier feeding linear regulators or buck controllers.

Use Value: 150 °C max T_J allows uninterrupted operation inside sealed cabinets with ambient up to 70 °C.

Offline SMPS Bulk Capacitor Charging

AC Motor Control Snubber Network

Use Scenario: Charging bulk electrolytic capacitors after bridge rectification in flyback or forward converter front ends.

IC Role / Device Role / Timing Role: Part of discrete bridge or half-wave rectifier feeding PFC or main switch stage.

Use Value: 30 A I_FSM accommodates capacitor inrush without degradation over 100,000 cycles.

Use Scenario: Clamping inductive kickback in TRIAC- or relay-driven AC motor control modules.

IC Role / Device Role / Timing Role: Freewheeling path for snubber RC networks absorbing turn-off energy.

Use Value: Low leakage (<1 μA @ 1000 V) prevents false triggering in high-impedance gate drive circuits.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N5408	Same DO-15 package; higher I_F(AV) = 3.0 A but lower V_RRM = 1000 V (same rating), V_F ≈ 1.1 V @ 3 A	Suitable where higher continuous current is needed; not interchangeable without verifying layout thermal capacity	Select 1N5408 only if board copper area supports >3 A steady-state dissipation
UF5408	Ultrafast recovery (t_rr ≈ 75 ns vs. 2 μs for 1N5399G); same V_RRM/I_F(AV); higher cost	Required in high-frequency SMPS (>50 kHz) to reduce switching losses; unnecessary in 50/60 Hz linear supplies	Choose UF5408 only when t_rr reduction directly improves efficiency or EMI in target topology

Compared with 1N5399G, 1N5408 offers double the average current but demands larger thermal pads, while UF5408 reduces reverse recovery loss at high frequencies but adds cost and offers no benefit in low-frequency rectification-making 1N5399G optimal for cost-sensitive, thermally constrained 50/60 Hz applications.

Availability

1N5399G is available at Aetrix Electronics and suitable for AC/DC power adapters, industrial PLC auxiliary supplies, and offline SMPS bulk capacitor charging requiring stable component supply and long-term manufacturing continuity.

Supply support for 1N5399G 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 is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global industrial, computing, and consumer markets since 1979.

The 1N5391G–1N5399G series targets cost-effective, high-reliability rectification in legacy and new-design power supplies, emphasizing robust surge handling and wide-temperature operation.

FAQ

What is the maximum junction temperature rating for the 1N5399G?

The 1N5399G has a maximum rated junction temperature (T_J) of +150 °C, verified per Taiwan Semiconductor's official datasheet revision G2309. This allows reliable operation in sealed enclosures or high-ambient environments when mounted on standard FR-4 PCB with ≥1 in² copper pour. Derating curves confirm usable I_F(AV) down to 0.9 A at 100 °C ambient, making the 1N5399G suitable for industrial control applications where thermal headroom is limited.

Is the 1N5399G pin-compatible with other 1N539xG series diodes?

Yes-the 1N5399G shares identical DO-15 package dimensions, lead spacing (7.60 mm), and axial pinout (anode/cathode) with all members of the 1N5391G–1N5399G family. Mechanical interchangeability is confirmed by Taiwan Semiconductor's mechanical drawing HQ2SD07-DO15-078 REV A. However, electrical ratings differ: 1N5399G is the highest-voltage variant (1000 V V_RRM), while 1N5391G is rated at 50 V; substitution requires verification of reverse voltage stress in the target circuit.

What is the forward voltage drop of the 1N5399G at rated current?

The 1N5399G exhibits a maximum forward voltage (V_F) of 1.2 V at 1.5 A DC forward current and 25 °C junction temperature, per the official specification sheet. At elevated temperatures (e.g., 125 °C), V_F decreases slightly (~1.05 V), reducing conduction loss but requiring attention to thermal runaway in parallel configurations. This V_F value directly determines power dissipation: at full-rated current, the 1N5399G dissipates approximately 1.8 W, necessitating appropriate PCB copper area for thermal management.

Does the 1N5399G meet RoHS and green compound requirements?

Yes-the "G" suffix in 1N5399G explicitly denotes compliance with RoHS Directive 2011/65/EU and use of halogen-free, green molding compound, as documented in Taiwan Semiconductor's product change notice G2309. The device carries no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), or polybrominated diphenyl ethers (PBDE). Marking includes "G" on the cathode band, confirming green compound per JEDEC J-STD-609A.

Can the 1N5399G be used in place of a 1N4007 in high-voltage designs?

Yes-the 1N5399G is a direct upgrade to the 1N4007 for higher current capability: both share 1000 V V_RRM, but the 1N5399G supports 1.5 A I_F(AV) versus 1.0 A for the 1N4007. Its DO-15 package is mechanically identical, enabling drop-in replacement in existing layouts. However, the 1N5399G's higher surge rating (30 A vs. 30 A for 1N4007) and lower thermal resistance make it preferable in thermally demanding or high-inrush applications-provided the PCB copper area is sufficient to handle the extra 0.5 A continuous load.

1N5399G 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):: 1000 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 @ 1000 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

1N5399G FAQ

1.How can I place an order for 1N5399G through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N5399G 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 1N5399G reliable?

The price and inventory of 1N5399G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5399G is usually 5 days.

3.What payment methods are accepted for 1N5399G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5399G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N5399G?

1N5399G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N5399G 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 1N5399G?

For technical support, including 1N5399G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5399G requirements.

6.How does Aetrix verify that 1N5399G is sourced from the original manufacturer or authorized distributors?

All 1N5399G 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 1N5399G meets industry standards.

7.What is the process for return or replacement of 1N5399G?

All 1N5399G units undergo pre-shipment inspection (PSI). If there is an issue with 1N5399G, 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 1N5399G part is unused and in its original packaging.

Return procedure for 1N5399G:

1.Submit a request within 90 days.

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

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