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Taiwan Semiconductor Corporation FR156G-T
- Part No.:
- FR156G-T
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
FR156G-T.pdf
- Description:
- 500NS, 1.5A, 800V, FAST RECOVERY
- Quantity:
- Payment:
- Shipping:
Inventory:9,921
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Product details
Overview
FR156G-T from Taiwan Semiconductor is a 1.5A, 800V fast recovery rectifier diode in DO-204AC (DO-15) package, featuring 500 ns reverse recovery time, 1.3 V max forward voltage at 1.5 A, and 50 A surge capability - used in high-frequency switching mode power supplies and DC-DC converters.
For engineers reviewing the FR156G-T datasheet, FR156G-T pinout, FR156G-T application, or FR156G-T equivalent, key selection criteria include rated peak reverse voltage (800 V), thermal resistance (60 °C/W), junction temperature range (–55 to +150 °C), and RoHS/halogen-free compliance for industrial power conversion designs.
Technical Context
This device is a single-die, glass-passivated silicon PN junction rectifier optimized for fast switching performance in offline AC-DC and isolated DC-DC topologies. Its 500 ns trr and low VF support high-efficiency operation at frequencies up to several hundred kHz.
Designed for surface-mount-compatible through-hole assembly, it uses pure tin-plated leads compliant with J-STD-002 and meets JESD 201 Class 1A whisker resistance. Polarity is marked by a cathode band on the DO-204AC body.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - maximum repetitive reverse voltage the diode blocks without breakdown in normal operation |
| IF | 1.5 A - continuous average forward current rating at TA = 75 °C, defining steady-state conduction capacity |
| IFSM | 50 A - non-repetitive surge current handling for 8.3 ms half-sine, critical for inrush and fault tolerance |
| trr | 500 ns - measured at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; determines switching loss and EMI in hard-switched converters |
| RθJA | 60 °C/W - junction-to-ambient thermal resistance in free-air; sets derating curve for ambient temperature limits |
| VF (max) | 1.3 V @ 1.5 A, 25 °C - forward voltage drop directly impacts conduction loss and thermal load in high-duty-cycle operation |
| IR (max) | 5 µA @ 25 °C, 800 V - leakage current level affecting standby power and high-impedance bias networks |
Pinout & Package
Package: DO-204AC (DO-15), axial lead, glass-passivated chip, cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward current entry point | Connected to lower-potential side of circuit; must handle full IF and IFSM during transients |
| Cathode (banded end) | Forward current exit / reverse blocking terminal | Connected to higher-potential node; withstands full VRRM and defines reverse leakage path |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances moisture resistance and long-term reliability under humid or thermally cycled conditions |
| Low VF (≤1.3 V) | Reduces conduction losses in high-current, high-duty-cycle rectification stages |
| 500 ns trr | Enables use in 100–500 kHz SMPS designs without excessive switching loss or ringing |
| RoHS & halogen-free | Meets IEC 61249-2-21; supports compliance for consumer, industrial, and telecom end equipment |
| Junction temp range (–55 to +150 °C) | Supports operation in automotive under-hood, industrial motor drives, and outdoor power systems |
Applications
| AC-DC Front-End Rectification | Isolated DC-DC Converter Output |
|---|---|
Use Scenario: Input stage of offline flyback or forward converter converting universal AC (85–265 VAC) to high-voltage DC bus. IC Role / Device Role / Timing Role: Fast recovery rectifier conducting during positive half-cycles and blocking reverse voltage during negative half-cycles. Use Value: 800 V VRRM ensures margin against line surges and reflected spikes; 500 ns trr minimizes switching loss during high-frequency operation. | Use Scenario: Secondary-side synchronous or standard rectification in isolated 12 V/24 V DC-DC modules for telecom or server PSUs. IC Role / Device Role / Timing Role: Unidirectional current path delivering regulated output while blocking transformer-reflected voltage. Use Value: 1.5 A IF rating and 50 A IFSM accommodate transient loads and startup surges without thermal runaway. |
| Industrial Motor Drive Snubber | LED Driver Bulk Rectification |
Use Scenario: Clamping diode in IGBT snubber circuits absorbing inductive kickback in variable frequency drives. IC Role / Device Role / Timing Role: Fast turn-off rectifier diverting energy from inductive loads into RC snubbers during switching transitions. Use Value: 500 ns trr enables effective energy capture before voltage overshoot exceeds safe limits; 60 °C/W RθJA supports heatsink-less mounting in compact enclosures. | Use Scenario: Bridge or single-diode rectification feeding constant-current LED driver ICs in streetlight or commercial lighting fixtures. IC Role / Device Role / Timing Role: High-reliability AC line rectifier providing stable DC input to buck/boost LED controllers. Use Value: Glass passivation and –55 to +150 °C TJ range ensure longevity in thermally demanding outdoor environments with wide ambient swings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L06U | 1 A, 600 V, 75 ns trr, SOD-123FL package | Lower voltage rating and faster recovery; unsuitable for 800 V line-survivable designs | Preferable only in space-constrained, lower-voltage (<400 V) DC-DC outputs where ultra-fast recovery reduces EMI |
| ON Semi MUR160 | 1 A, 600 V, 75 ns trr, DO-41 package | Lower IF and VRRM; different thermal profile due to DO-41 vs DO-15 leadframe geometry | Acceptable for legacy board replacements with identical footprint constraints but requires voltage derating verification |
Compared with STTH1L06U and MUR160, the FR156G-T provides higher voltage blocking (800 V), higher current (1.5 A), and a proven DO-15 thermal interface - making it suitable for new 230 VAC-input industrial power supplies where margin and manufacturability are prioritized over minimal trr.
Availability
FR156G-T is available at Aetrix Electronics and suitable for AC-DC front-end rectification, isolated DC-DC converter output stages, and industrial motor drive snubber circuits requiring stable component supply and long-term manufacturing continuity.
Supply support for FR156G-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, specializing in rectifiers, TVS diodes, MOSFETs, and bipolar transistors.
The FR15xG-T series is part of TSC's fast recovery rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in cost-sensitive industrial and consumer power supplies.
FAQ
What is the peak repetitive reverse voltage rating for FR156G-T?
The FR156G-T has a peak repetitive reverse voltage (VRRM) rating of 800 V. This value is specified in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version B2105) and defines the maximum reverse voltage the device can block repeatedly without breakdown under normal operating conditions. It is critical for ensuring safe operation in 230 VAC-derived power supplies with surge margin.
Does FR156G-T meet RoHS and halogen-free requirements?
Yes, FR156G-T is RoHS compliant and halogen-free per IEC 61249-2-21. This is explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet. The molding compound and plating materials are qualified to these environmental standards, supporting compliance for export to EU, China, and other regulated markets.
What is the reverse recovery time (trr) of FR156G-T and how is it tested?
The FR156G-T has a reverse recovery time (trr) of 500 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, as defined in the ELECTRICAL SPECIFICATIONS table. This test method follows JEDEC-standard switching characterization and reflects real-world behavior in hard-switched converters operating near 100–300 kHz.
Can FR156G-T replace FR155G-T or FR157G-T in an existing design?
FR156G-T is not a direct replacement for FR155G-T (600 V) or FR157G-T (1000 V) without circuit review. While all share identical package, pinout, and thermal specs, the 800 V VRRM of FR156G-T sits between them. Substituting requires verifying that reverse voltage stress remains within 80% of 800 V in the target application to maintain reliability.
What is the thermal resistance (RθJA) of FR156G-T and how does it affect layout?
The FR156G-T has a junction-to-ambient thermal resistance (RθJA) of 60 °C/W in free-air conditions. This value assumes no PCB copper pour or heatsinking. For reliable operation above 1 A average current, designers should add ≥1 cm² of 2-oz copper connected to both leads to reduce effective RθJA and prevent exceeding the 150 °C maximum junction temperature.
FR156G-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:
- 1.3 V @ 1.5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 500 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 800 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
FR156G-T FAQ
1.How can I place an order for FR156G-T through Aetrix?
Please submit a Request for Quotation (RFQ) for FR156G-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 FR156G-T reliable?
The price and inventory of FR156G-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FR156G-T is usually 5 days.
3.What payment methods are accepted for FR156G-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FR156G-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FR156G-T?
FR156G-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FR156G-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 FR156G-T?
For technical support, including FR156G-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FR156G-T requirements.
6.How does Aetrix verify that FR156G-T is sourced from the original manufacturer or authorized distributors?
All FR156G-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 FR156G-T meets industry standards.
7.What is the process for return or replacement of FR156G-T?
All FR156G-T units undergo pre-shipment inspection (PSI). If there is an issue with FR156G-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 FR156G-T part is unused and in its original packaging.
Return procedure for FR156G-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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