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Taiwan Semiconductor Corporation HER156G-T
- Part No.:
- HER156G-T
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
HER156G-T.pdf
- Description:
- 75NS, 1.5A, 600V, HIGH EFFICIENT
- Quantity:
- Payment:
- Shipping:
Inventory:4,616
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Product details
Overview
HER156G-T from Taiwan Semiconductor is a high-efficiency, glass-passivated silicon rectifier diode rated for 600 V repetitive peak reverse voltage (VRRM), 1.5 A average forward current (IF), and 50 A non-repetitive surge current (IFSM), used as a freewheeling or output rectifier in high-frequency switching power supplies.
For engineers reviewing the HER156G-T datasheet, HER156G-T pinout, HER156G-T application, or HER156G-T equivalent, key selection criteria include its 1.7 V forward voltage at 1.5 A/25°C, 75 ns reverse recovery time, 20 pF junction capacitance at 1 MHz/4 V, DO-204AC (DO-15) package, and 150°C maximum junction temperature.
Technical Context
The HER156G-T is a single-die, axial-leaded, standard recovery rectifier optimized for switching-mode power conversion where higher VRRM and controlled trr are required over general-purpose diodes. Its 600 V rating enables use in universal-input AC-DC front-ends and industrial DC-DC stages.
Thermal performance is defined by a 60°C/W junction-to-ambient thermal resistance (RθJA) and operation across –55°C to +150°C junction temperature range. Reverse leakage remains ≤5 µA at 25°C and ≤150 µA at 125°C under rated VR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - supports universal AC input (85–265 VAC) with margin in offline SMPS designs |
| IF(AV) | 1.5 A - continuous conduction mode output rectification up to ~25 W at 12 V out |
| VF @ 1.5A/25°C | 1.7 V - contributes ~2.55 W conduction loss per diode at full load |
| trr | 75 ns - limits switching losses and EMI in 50–200 kHz converters |
| CJ @ 1MHz/4V | 20 pF - reduces capacitive coupling noise in high dv/dt gate-drive or snubber circuits |
| IFSM | 50 A - withstands inrush and transient surges without bond-wire failure |
| TJ max | +150°C - enables operation in sealed enclosures or high-ambient industrial environments |
Pinout & Package
HER156G-T uses the DO-204AC (DO-15) axial package: molded epoxy body, pure tin-plated leads, cathode indicated by a band, weight ≈ 0.400 g, UL 94V-0 rated compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward current entry point | Connected to lower-potential node (e.g., transformer secondary center-tap or switch node return) |
| Cathode (banded end) | Forward current exit / reverse blocking terminal | Connected to output rail; blocks 600 V reverse during off-state of active switch |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures long-term reliability and stable leakage current under humidity and thermal cycling |
| High surge current capability (50 A) | Prevents catastrophic failure during cold-start or line-voltage transients in power supplies |
| Low VF at high IF (1.7 V @ 1.5 A) | Reduces conduction loss versus standard 1N4007 (1.1 V @ 1 A but only rated 1000 V) |
| RoHS & halogen-free compliance | Meets IEC 61249-2-21 and global environmental directives for commercial and industrial PCB assembly |
| DO-204AC mechanical robustness | Withstands 5 kgf axial lead pull force and meets JESD201 Class 1A whisker resistance |
Applications
| AC-DC Front-End Rectification | DC-DC Output Rectification |
|---|---|
Use Scenario: Full-wave bridge rectification in universal-input (85–265 VAC) offline SMPS before PFC stage. IC Role / Device Role / Timing Role: Standard recovery rectifier handling 600 V reverse stress and 1.5 A average current during line peaks. Use Value: 600 V VRRM provides 2× safety margin over 424 V peak of 300 VAC input; 75 ns trr minimizes switching loss vs. slower 1N54xx series. | Use Scenario: Secondary-side synchronous or diode rectification in isolated flyback or forward converters delivering 12–24 V at ≤1.5 A. IC Role / Device Role / Timing Role: Freewheeling path for transformer leakage inductance and output filter inductor current. Use Value: 1.7 V VF balances efficiency and cost vs. Schottky alternatives; 50 A IFSM handles startup surges without derating. |
| Industrial Inverter Snubber | UPS Battery Charging Stage |
Use Scenario: RC snubber clamp diode across IGBTs in motor drive inverters operating at 400 V DC bus. IC Role / Device Role / Timing Role: Fast-recovery clamping diode absorbing turn-off energy and limiting dv/dt stress. Use Value: 75 ns trr ensures clean energy transfer into snubber capacitor; 20 pF CJ reduces parasitic oscillation risk. | Use Scenario: AC-input rectification feeding bulk capacitor in online UPS battery charger with 600 V hold-up requirement. IC Role / Device Role / Timing Role: High-voltage, medium-current rectifier sustaining 600 V reverse during brownout or hold-up intervals. Use Value: 150°C TJ max allows operation in thermally constrained UPS chassis; RoHS/halogen-free supports CE-marked systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L60S | 600 V VRRM, 1.1 A IF, 50 ns trr, TO-220AC package | Lower IF rating; requires heatsink above ~0.8 A; faster recovery | Preferred where ultra-fast recovery (<60 ns) is critical and board space allows TO-220 mounting |
| VS-HER156-M3/54 | 600 V VRRM, 1.5 A IF, 75 ns trr, DO-204AC package, Vishay equivalent | Identical electrical specs and DO-204AC footprint; different marking and traceability | Drop-in replacement with same thermal and layout behavior; suitable for dual-sourcing programs |
Compared with STTH1L60S, HER156G-T offers higher current rating in compact DO-204AC form; versus VS-HER156-M3/54, it shares identical performance but differs in manufacturing lot traceability and green compound formulation.
Availability
HER156G-T is available at Aetrix Electronics and suitable for AC-DC front-end rectification, DC-DC output rectification, industrial inverter snubbers, and UPS battery charging stages requiring stable component supply and long-lifecycle support.
Supply support for HER156G-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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving industrial, computing, and consumer markets since 1979.
The HER15xG-T series is part of TSC's high-efficiency rectifier product line, designed specifically for cost-sensitive, high-reliability switching power supplies requiring robust surge handling and stable parametric performance across temperature.
FAQ
What is the maximum junction temperature rating for HER156G-T?
The HER156G-T has a maximum junction temperature (TJ max) of +150°C, enabling reliable operation in enclosed industrial power supplies and high-ambient environments. This rating is validated under specified thermal conditions and must be maintained via appropriate PCB copper area or ambient airflow. Exceeding +150°C risks permanent degradation of the glass-passivated junction in HER156G-T.
Does HER156G-T have a specified reverse recovery time, and how is it measured?
Yes, HER156G-T has a typical reverse recovery time (trr) of 75 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This parameter reflects the diode's ability to transition from conduction to blocking state and directly impacts switching loss and EMI in high-frequency converters using HER156G-T.
What is the forward voltage drop of HER156G-T at rated current and room temperature?
The forward voltage (VF) of HER156G-T is 1.7 V at 1.5 A forward current and 25°C junction temperature, measured with a 0.3 ms pulse width. This value determines conduction loss in power stages and is higher than lower-voltage HER15x variants due to increased doping gradient for 600 V blocking capability in HER156G-T.
Is HER156G-T compliant with RoHS and halogen-free standards?
Yes, HER156G-T is RoHS compliant and halogen-free per IEC 61249-2-21. The molding compound contains no brominated flame retardants, and the pure tin-plated leads meet J-STD-002 solderability requirements. These attributes make HER156G-T suitable for environmentally regulated commercial and industrial equipment.
What package type does HER156G-T use, and what are its key mechanical features?
HER156G-T uses the DO-204AC (DO-15) axial package with glass-passivated die, UL 94V-0 rated epoxy, and pure tin-plated leads. It weighs approximately 0.400 g, features cathode polarity marked by a band, and passes JESD201 Class 1A whisker testing-key mechanical traits confirmed for HER156G-T in official TSC documentation.
HER156G-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):
- 600 V
- Current - Average Rectified (Io):
- 1.5A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 1.5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 75 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 600 V
- Capacitance @ Vr, F:
- 20pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
- Operating Temperature - Junction:
- -55°C ~ 150°C
HER156G-T FAQ
1.How can I place an order for HER156G-T through Aetrix?
Please submit a Request for Quotation (RFQ) for HER156G-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 HER156G-T reliable?
The price and inventory of HER156G-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HER156G-T is usually 5 days.
3.What payment methods are accepted for HER156G-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HER156G-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HER156G-T?
HER156G-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HER156G-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 HER156G-T?
For technical support, including HER156G-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HER156G-T requirements.
6.How does Aetrix verify that HER156G-T is sourced from the original manufacturer or authorized distributors?
All HER156G-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 HER156G-T meets industry standards.
7.What is the process for return or replacement of HER156G-T?
All HER156G-T units undergo pre-shipment inspection (PSI). If there is an issue with HER156G-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 HER156G-T part is unused and in its original packaging.
Return procedure for HER156G-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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