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Vishay General Semiconductor - Diodes Division BY255GP-E3/73
- Part No.:
- BY255GP-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
BY255GP-E3/73.pdf
- Description:
- DIODE GEN PURP 1.3KV 3A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:8,670
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Product details
Overview
BY255GP-E3/73 from Vishay General Semiconductor is a glass-passivated junction plastic rectifier diode rated for 1300 V repetitive peak reverse voltage, 3.0 A average forward current, and 100 A non-repetitive surge current, with 1.1 V forward voltage at 3.0 A and 5.0 μA reverse leakage at rated DC blocking voltage. It serves as a high-reliability power rectifier in automotive and industrial DC-DC converters and freewheeling paths.
For engineers reviewing the BY255GP-E3/73 datasheet, BY255GP-E3/73 pinout, BY255GP-E3/73 application, or BY255GP-E3/73 equivalent, key selection criteria include its AEC-Q101 qualification, DO-201AD package, 3.0 μs reverse recovery time, 40 pF junction capacitance at 4.0 V, and 175 °C maximum junction temperature-critical for high-voltage, high-temperature power conversion designs.
Technical Context
This Superectifier® device uses a cavity-free glass-passivated junction to achieve low leakage (≤5.0 μA) and stable performance across -65 °C to +175 °C operating range. Its 3.0 μs reverse recovery time and 40 pF junction capacitance support efficient switching in medium-frequency rectification up to ~100 kHz.
The diode is optimized for unidirectional conduction in high-voltage DC bus conditioning, with thermal resistance of 20 °C/W (junction-to-ambient) and 10 °C/W (junction-to-lead), enabling reliable operation under sustained 3.0 A load with appropriate PCB copper area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1300 V - supports DC bus voltages up to 910 V RMS in bridge rectifiers |
| IF(AV) | 3.0 A - continuous rectified current at 55 °C ambient with 10 mm leads |
| IFSM | 100 A - withstands single half-sine surge without degradation |
| VF @ 3.0 A | 1.1 V - limits conduction loss to ≤3.3 W at full rated current |
| trr | 3.0 μs - enables use in flyback and forward converter secondary rectification |
| TJ max. | 175 °C - allows operation in under-hood automotive environments |
| IR @ VDC | 5.0 μA - ensures minimal standby power loss in high-impedance circuits |
Pinout & Package
Package: DO-201AD molded epoxy case with glass body, UL 94 V-0 rated, matte tin-plated leads, cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of AC source or switch node in freewheeling path |
| Cathode | Forward current exit point | Marked with color band; connects to positive output rail or inductor return in buck-derived topologies |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and chassis applications per stress test requirements |
| Glass-passivated junction | Eliminates cavity-induced moisture ingress and improves long-term IR stability |
| Low VF (1.1 V) | Reduces conduction losses by ~15 % vs. standard 1N54xx series at 3 A |
| Rugged surge rating (100 A IFSM) | Survives inrush and fault currents in offline SMPS without derating |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance for lead-free reflow assembly |
Applications
| Automotive DC-DC Converters | Industrial Motor Drive Freewheeling |
|---|---|
Use Scenario: High-voltage bidirectional DC-DC conversion in 48 V mild hybrid systems. IC Role / Device Role / Timing Role: Output rectifier in synchronous or asynchronous isolated forward topology. Use Value: 1300 V VRRM enables direct interface with 600 V+ battery stacks; 175 °C TJ max supports under-hood placement. | Use Scenario: Inductive energy recirculation during IGBT turn-off in 3-phase VFDs. IC Role / Device Role / Timing Role: Freewheeling diode across motor phase windings. Use Value: 100 A IFSM handles motor stall surges; 3.0 μs trr minimizes switching loss during commutation. |
| Off-line SMPS Input Rectification | Renewable Energy Inverter Stage |
Use Scenario: Bridge rectification of 230 VAC mains input in industrial power supplies. IC Role / Device Role / Timing Role: Primary-side rectifier in full-wave bridge configuration. Use Value: 910 V VRMS rating exceeds EN 61000-3-2 requirements for 230 VAC systems with line transients. | Use Scenario: DC link clamping and regeneration path in solar microinverters. IC Role / Device Role / Timing Role: Clamping diode in active clamp forward or LLC resonant converter. Use Value: 40 pF CJ enables predictable snubber design; low IR prevents leakage-induced capacitor discharge in standby. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3L06S | 600 V VRRM, 3 A IF(AV), TO-220AC package, 50 ns trr | Limited to ≤600 V DC bus; requires heatsink for >2 A continuous | Select when lower voltage rating suffices and through-hole mounting is preferred |
| ES3J-E3/57T | 600 V VRRM, 3 A IF(AV), DO-204AL (SMA) package, 35 ns trr | Not AEC-Q101 qualified; smaller thermal mass; unsuitable for 1300 V systems | Choose for cost-sensitive consumer power supplies where voltage margin is <600 V |
Compared with STTH3L06S and ES3J-E3/57T, BY255GP-E3/73 uniquely delivers 1300 V isolation capability in a compact DO-201AD package with automotive qualification-enabling single-device solutions in high-voltage industrial and automotive rectification where alternatives require series stacking or derating.
Availability
BY255GP-E3/73 is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial motor drive freewheeling, and off-line SMPS input rectification requiring stable component supply and long-term lifecycle assurance.
Supply support for BY255GP-E3/73 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, MOSFETs, optoelectronics, and resistive components with emphasis on reliability and ruggedness.
The BY25xGP series was designed specifically for high-voltage, high-temperature rectification in automotive and industrial power systems, leveraging Superectifier® architecture to improve surge robustness and thermal stability.
FAQ
What is the maximum junction temperature rating for BY255GP-E3/73?
The BY255GP-E3/73 has a maximum junction temperature (TJ max.) of +175 °C, verified per AEC-Q101 stress testing. This rating allows operation in under-hood automotive environments and high-temperature industrial enclosures without thermal derating below 3.0 A average forward current when mounted with 10 mm lead length. The device maintains specified IR and VF performance up to this limit.
Is BY255GP-E3/73 RoHS compliant and lead-free?
Yes, BY255GP-E3/73 is RoHS compliant per Directive 2011/65/EU and features matte tin-plated leads meeting J-STD-002 solderability standards. The "E3" suffix confirms compliance with JESD 201 Class 1A whisker resistance testing, making it suitable for lead-free reflow processes used in modern electronics manufacturing.
What does the "/73" suffix indicate in BY255GP-E3/73?
The "/73" suffix in BY255GP-E3/73 denotes ammo pack packaging containing 1000 units, as specified in Vishay's ordering information. This differs from "/54", which indicates 1400 units on 13-inch paper tape and reel. Both share identical electrical and mechanical specifications; only packaging format and quantity differ.
How does the reverse recovery time of BY255GP-E3/73 affect switching performance?
With a specified trr of 3.0 μs at IF = 0.5 A, IR = 1.0 V, and Irr = 0.25 A, BY255GP-E3/73 exhibits fast soft recovery behavior suitable for medium-frequency switching (up to ~100 kHz). This reduces switching losses and EMI in forward and flyback converters compared to general-purpose rectifiers with trr > 10 μs, while maintaining low leakage and high voltage capability.
Can BY255GP-E3/73 be used in place of BY254GP-E3/73?
Yes, BY255GP-E3/73 can replace BY254GP-E3/73 in designs requiring higher voltage margin, as it shares identical package (DO-201AD), thermal characteristics, and forward conduction parameters (IF(AV) = 3.0 A, VF = 1.1 V), but offers increased VRRM (1300 V vs. 800 V) and VRSM (1430 V vs. 880 V). No layout change is needed, though system-level voltage derating should be reviewed.
BY255GP-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- SUPERECTIFIER®
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1300 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 3 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 3 µs
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1300 V
- Capacitance @ Vr, F:
- 40pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -65°C ~ 175°C
BY255GP-E3/73 FAQ
1.How can I place an order for BY255GP-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for BY255GP-E3/73 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 BY255GP-E3/73 reliable?
The price and inventory of BY255GP-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BY255GP-E3/73 is usually 5 days.
3.What payment methods are accepted for BY255GP-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BY255GP-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BY255GP-E3/73?
BY255GP-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BY255GP-E3/73 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 BY255GP-E3/73?
For technical support, including BY255GP-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BY255GP-E3/73 requirements.
6.How does Aetrix verify that BY255GP-E3/73 is sourced from the original manufacturer or authorized distributors?
All BY255GP-E3/73 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 BY255GP-E3/73 meets industry standards.
7.What is the process for return or replacement of BY255GP-E3/73?
All BY255GP-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with BY255GP-E3/73, 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 BY255GP-E3/73 part is unused and in its original packaging.
Return procedure for BY255GP-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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