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Taiwan Semiconductor Corporation FR155GH
- Part No.:
- FR155GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
FR155GH.pdf
- Description:
- DIODE GEN PURP 600V 1.5A DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,000
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Product details
Overview
FR155GH from Taiwan Semiconductor is a 1.5A, 600V fast recovery rectifier diode in DO-204AC (DO-15) package, featuring 250 ns reverse recovery time, 1.3 V max forward voltage at 1.5 A, and AEC-Q101 qualification for automotive-grade reliability - used in switching mode power supplies and DC-DC converters.
For engineers reviewing the FR155GH datasheet, FR155GH pinout, FR155GH application, or FR155GH equivalent, key selection criteria include its 600 V repetitive peak reverse voltage, AEC-Q101 qualification status, 250 ns trr performance, glass-passivated junction, and DO-15 mechanical compatibility with legacy through-hole layouts.
Technical Context
This device is a single-die, unidirectional fast recovery rectifier optimized for high-frequency switching applications where low conduction loss and controlled reverse recovery behavior are critical. It operates across -55°C to +150°C junction temperature range and supports surge currents up to 50 A (8.3 ms half-sine).
The FR155GH uses a glass-passivated chip junction to ensure stable leakage performance and long-term reliability under thermal cycling. Its 20 pF junction capacitance at 4 V reverse bias and 5 µA max IR at 25°C support efficient high-speed rectification in SMPS flyback and forward converter topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - maximum repetitive reverse blocking voltage; defines safe operating limit in 400–480 V AC-input DC-DC stages |
| IF | 1.5 A continuous average forward current - supports sustained power delivery in compact 12–24 V output converters |
| trr | 250 ns - measured at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; enables >100 kHz switching without excessive switching loss |
| VF (max) | 1.3 V at IF = 1.5 A, TJ = 25°C - determines conduction loss and thermal rise in high-duty-cycle operation |
| IFSM | 50 A non-repetitive surge - withstands inrush and fault transients in industrial power supplies and motor drives |
| RθJA | 60 °C/W - junction-to-ambient thermal resistance in free-air; informs heatsinking requirements for >0.8 W dissipation |
Pinout & Package
Package: DO-204AC (DO-15), axial leaded, glass-passivated, RoHS-compliant, halogen-free molding compound (UL 94V-0), cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (lead without band) | Forward current entry point | Connected to lower-potential side of circuit (e.g., transformer secondary center-tap or switch node return) |
| Cathode (lead with band) | Forward current exit / reverse blocking terminal | Connected to output capacitor positive rail; blocks reverse voltage up to 600 V during off-state |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics per stress test requirements including HTOL, TC, HTRB, and UHAST |
| Glass passivated junction | Eliminates moisture-induced leakage degradation and improves long-term stability in humid environments |
| Low VF (≤1.3 V) | Reduces conduction loss by ~15% vs. standard recovery diodes at 1.5 A, lowering thermal load in enclosed enclosures |
| Fast trr = 250 ns | Minimizes reverse recovery charge (Qrr) and associated EMI in high-frequency flyback converters |
| DO-204AC (DO-15) package | Enables drop-in replacement for legacy rectifiers; compatible with standard wave-solder and hand-solder processes |
Applications
| Automotive DC-DC Converter | Industrial SMPS Front-End |
|---|---|
Use Scenario: 12 V/24 V battery-fed isolated DC-DC module powering infotainment and ADAS ECUs. IC Role / Device Role / Timing Role: Primary-side fast recovery rectifier in flyback topology, handling 600 V reflected voltage during MOSFET off-time. Use Value: AEC-Q101 qualification ensures compliance with automotive reliability standards; 250 ns trr reduces switching losses and EMI generation at 150 kHz operation. | Use Scenario: 3-phase rectified input stage feeding a 400 V bus in programmable logic controller (PLC) power supply. IC Role / Device Role / Timing Role: Output rectifier in forward converter delivering 24 V/3 A to control logic and I/O modules. Use Value: 1.5 A continuous rating and 50 A surge capability accommodate motor startup surges and transient overloads without derating. |
| LED Driver Power Stage | UPS Battery Charger Circuit |
Use Scenario: Constant-current LED driver for street lighting with universal AC input (90–305 V AC). IC Role / Device Role / Timing Role: Secondary-side rectifier in quasi-resonant flyback, converting high-frequency AC to regulated DC for LED strings. Use Value: Low 20 pF junction capacitance minimizes capacitive coupling noise into feedback loop; 1.3 V VF maintains efficiency above 90% at full load. | Use Scenario: On-line UPS charging circuit converting 230 V AC to 48 V DC for sealed lead-acid battery bank. IC Role / Device Role / Timing Role: High-voltage output rectifier in dual-switch forward converter operating at 100 kHz. Use Value: 600 V VRRM provides 2× safety margin over 325 V peak rectified input; glass passivation prevents leakage drift during 10+ year field life. |
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, TO-220AC package, no AEC-Q101 | Higher speed but lower current rating; requires PCB footprint change and heatsink mounting | Preferred where ultra-fast recovery dominates over cost and layout continuity |
| ON Semi MUR160 | 1 A, 600 V, 50 ns trr, DO-41 package, no AEC-Q101 | Smaller DO-41 case limits thermal mass and surge capability; not qualified for automotive use | Suitable for cost-sensitive consumer SMPS where AEC-Q101 and 1.5 A rating are not required |
Compared with STTH1L06U and MUR160, the FR155GH uniquely combines AEC-Q101 qualification, 1.5 A current capacity, DO-15 compatibility, and 250 ns recovery - making it the only option meeting automotive-grade reliability and legacy board space constraints simultaneously.
Availability
FR155GH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS front-ends, and LED driver power stages requiring stable component supply, long-lifecycle assurance, and AEC-Q101 compliance.
Supply support for FR155GH 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 power devices, rectifiers, TVS diodes, and MOSFETs since 1979.
The FR15xG series was designed specifically for high-reliability, high-volume power conversion applications demanding robust surge immunity, tight parameter consistency, and automotive-grade qualification - with FR155GH targeting 600 V systems in transportation and industrial automation.
FAQ
What is the peak repetitive reverse voltage rating of FR155GH?
The FR155GH has a peak repetitive reverse voltage (VRRM) rating of 600 V. This value is defined per JEDEC standards and verified under specified test conditions. It represents the maximum reverse voltage the FR155GH can block repeatedly without breakdown during normal operation. Designers must maintain at least 20% margin below this rating in final circuits to account for voltage spikes and temperature effects.
Is FR155GH qualified to AEC-Q101 standards?
Yes, FR155GH is explicitly AEC-Q101 qualified, as confirmed by Taiwan Semiconductor's ordering code suffix "H" and official documentation (Version I2105). The qualification includes HTOL, temperature cycling, HTRB, and unbiased HAST testing. This makes FR155GH suitable for automotive power modules, body control units, and other under-hood applications where reliability under thermal and mechanical stress is mandatory.
What is the reverse recovery time (trr) of FR155GH and how is it measured?
The FR155GH has a reverse recovery time (trr) of 250 ns, measured under standardized conditions: IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A, with specified test circuit per Figure 6 in the FR151G–FR157G datasheet. This value reflects the time required for minority carriers to clear after forward conduction ceases - directly impacting switching loss and EMI in high-frequency converters using the FR155GH.
Can FR155GH replace FR154G or FR156G in an existing design?
FR155GH is not a direct replacement for FR154G (400 V) or FR156G (800 V) due to differing VRRM ratings. Substituting FR155GH for FR154G risks overvoltage failure in 400 V designs; substituting for FR156G may compromise safety margin in 800 V applications. Electrical validation and stress analysis are required before any cross-family substitution involving the FR155GH.
What is the maximum forward voltage drop of FR155GH at rated current?
The maximum forward voltage drop (VF) of FR155GH is 1.3 V at IF = 1.5 A and TJ = 25°C, per the electrical specifications table. This value increases with junction temperature - at 125°C, typical VF rises to ~1.15 V. Designers should use this 1.3 V worst-case figure for thermal and efficiency calculations when evaluating the FR155GH in high-power-density layouts.
FR155GH 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:
- 1.3 V @ 1.5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 250 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 600 V
- Capacitance @ Vr, F:
- 20pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
- Operating Temperature - Junction:
- -55°C ~ 150°C
FR155GH FAQ
1.How can I place an order for FR155GH through Aetrix?
Please submit a Request for Quotation (RFQ) for FR155GH 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 FR155GH reliable?
The price and inventory of FR155GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FR155GH is usually 5 days.
3.What payment methods are accepted for FR155GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FR155GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FR155GH?
FR155GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FR155GH 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 FR155GH?
For technical support, including FR155GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FR155GH requirements.
6.How does Aetrix verify that FR155GH is sourced from the original manufacturer or authorized distributors?
All FR155GH 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 FR155GH meets industry standards.
7.What is the process for return or replacement of FR155GH?
All FR155GH units undergo pre-shipment inspection (PSI). If there is an issue with FR155GH, 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 FR155GH part is unused and in its original packaging.
Return procedure for FR155GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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