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Vishay General Semiconductor - Diodes Division 1N6282A-E3/51
- Part No.:
- 1N6282A-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6282A-E3/51.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:8,822
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Product details
Overview
1N6282A-E3/51 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary-side overvoltage protection in DC power rails and signal lines. It features a 30 V breakdown voltage (VBR = 28.5–31.5 V at 1.0 mA), 25.6 V maximum working voltage (VWM), 41.4 V clamping voltage (VC) at 36.2 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used to safeguard MOSFETs, ICs, and sensor interfaces against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1N6282A-E3/51 datasheet, 1N6282A-E3/51 pinout, 1N6282A-E3/51 application, or 1N6282A-E3/51 equivalent, this device is selected for robust, low-leakage transient suppression in automotive body electronics, industrial PLC I/O modules, and telecom power supply front-ends where fast response (<1 ns), glass-passivated junction reliability, and AEC-Q101-compliant variants are critical.
Technical Context
The 1N6282A-E3/51 operates as a silicon avalanche diode with unidirectional polarity - cathode marked by color band - and exhibits highly stable breakdown behavior across -55 °C to +175 °C junction temperature range. Its 0.097 %/°C temperature coefficient of VBR ensures predictable clamping voltage drift under thermal stress.
It delivers 36.2 A peak pulse current (IPPM) under standardized 10/1000 µs surge conditions while maintaining 41.4 V clamping voltage, enabling effective protection of 24 V nominal systems without overstressing downstream components. The device's 1.0 µA max reverse leakage at VWM minimizes standby power loss in always-on circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 28.5 V / 31.5 V at 1.0 mA - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| VWM | 25.6 V - maximum continuous DC or RMS voltage the device blocks without leakage exceeding 1.0 µA |
| VC @ IPPM | 41.4 V at 36.2 A - clamped voltage during 10/1000 µs surge, limiting stress on protected ICs |
| PPPM | 1500 W - peak surge power handling capability, sufficient for IEC 61000-4-5 Level 4 line surges |
| IFSM | 200 A - non-repetitive forward surge rating (8.3 ms half-sine), supports high-energy fault clearing |
| TJ max. | +175 °C - extended junction temperature enables use in under-hood automotive and high-ambient industrial environments |
| RθJA | 75 °C/W - thermal resistance from junction to ambient, informs heatsinking requirements for sustained power dissipation |
Pinout & Package
Package: DO-201AD (Case Style 1.5KE), axial-leaded, molded epoxy body with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102 solderability standards. Cathode identified by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction or surge clamping | Connected to protected circuit ground or low-side return path; must handle full surge current |
| Cathode | Current exit point during reverse-biased clamping | Connected to protected line (e.g., 24 V rail); color band identifies this terminal for correct PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable long-term VBR performance and reduced parameter drift under humidity/temperature cycling |
| 1500 W peak pulse power (10/1000 µs) | Meets IEC 61000-4-5 surge immunity requirements for industrial and automotive power inputs |
| Clamping time <1 ns | Responds faster than MOVs or GDTs, protecting sensitive CMOS inputs before damage occurs |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for 3.3 V/5 V logic |
| AEC-Q101 qualified variant available | Supports automotive applications requiring qualification per JEDEC stress-test standard for discrete semiconductors |
Applications
| Automotive Body Control Module (BCM) Power Input | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protects 24 V supply input of BCM against load dump (ISO 7637-2 Pulse 5a) and alternator ripple-induced transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VIN and GND, clamping surges before they reach LDOs and microcontrollers. Use Value: With 25.6 V VWM and 41.4 V VC, it allows normal operation up to 24 V ±10 % while limiting fault voltage to safe levels for 36 V-rated regulators. |
Use Scenario: Shields 24 V digital input channels from field-wiring induced surges (IEC 61000-4-4 EFT, IEC 61000-4-5 surge). IC Role / Device Role / Timing Role: Front-end transient suppressor on each optocoupler input line, absorbing energy before signal conditioning circuitry. Use Value: 1.0 µA leakage at VWM prevents false triggering of high-impedance inputs; fast <1 ns response avoids missed edge detection. |
| Telecom Power Supply DC Output | Consumer Appliance Motor Driver Stage |
Use Scenario: Guards +48 V DC output of telecom rectifier modules against backfeed surges and hot-swap transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on secondary-side output bus, coordinated with OVP circuitry. Use Value: 1500 W PPPM handles repetitive surges from distributed capacitance discharge; UL 94 V-0 molding compound meets safety agency requirements. |
Use Scenario: Suppresses inductive kickback from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Flyback diode replacement with superior clamping control, placed across motor terminals or H-bridge outputs. Use Value: 200 A IFSM rating withstands repeated motor stall currents; 175 °C TJ max supports sealed enclosure thermal profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33A | Lower PPPM (600 W), smaller SMB package (vs. DO-201AD), 33 V VBR (31.4–34.7 V), 53.3 V VC at 11.3 A | Used where board space is constrained and surge energy is lower (e.g., USB port protection) | Select when footprint reduction is prioritized over 1500 W surge capacity and higher IPPM headroom |
| 1.5KE33A | Same DO-201AD package and 1500 W rating, but 33 V VBR (31.4–34.7 V), 28.2 V VWM, 45.7 V VC at 32.8 A - slightly higher clamping | Preferred for 28–30 V nominal systems needing tighter VWM/VC margin | Choose if system operating voltage approaches 25.6 V limit of 1N6282A-E3/51 and requires higher VWM headroom |
Compared with SMBJ33A, the 1N6282A-E3/51 offers 2.5× higher surge power and better thermal robustness in through-hole mounting; versus 1.5KE33A, it provides lower clamping voltage (41.4 V vs. 45.7 V) at comparable current, improving protection margin for 24 V systems.
Availability
1N6282A-E3/51 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O protection, and telecom power supply designs requiring stable component supply, RoHS compliance, and traceable sourcing.
Supply support for 1N6282A-E3/51 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 passive components with emphasis on reliability, precision, and automotive-grade qualification.
The 1N6282A-E3/51 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure resilience is mission-critical.
FAQ
What is the breakdown voltage tolerance of the 1N6282A-E3/51?
The 1N6282A-E3/51 has a specified breakdown voltage range of 28.5 V to 31.5 V at 1.0 mA test current, representing ±10.5 % tolerance around the nominal 30 V rating. This tight VBR window ensures consistent clamping onset across production lots and temperature extremes, critical for predictable overvoltage protection in 24 V systems.
Is the 1N6282A-E3/51 RoHS compliant and lead-free?
Yes, the 1N6282A-E3/51 carries the "E3" suffix, indicating full RoHS compliance per Directive 2011/65/EU and exemption 6c, with lead content below 1000 ppm. Its matte tin-plated leads meet J-STD-002 solderability requirements and JESD 201 Class 1A whisker resistance testing.
Can the 1N6282A-E3/51 be used in bidirectional configurations?
No, the 1N6282A-E3/51 is strictly unidirectional. Bidirectional variants in the same family use the "CA" suffix (e.g., 1N6282CA). Using the 1N6282A-E3/51 in reverse-biased AC applications would result in forward conduction and potential failure; always verify polarity marking (cathode band) during placement.
What is the maximum clamping voltage of the 1N6282A-E3/51 under surge conditions?
The 1N6282A-E3/51 clamps to a maximum of 41.4 V when subjected to its rated 36.2 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is guaranteed across temperature and lifetime, providing a defined upper bound for protected circuit voltage stress during surge events.
Does the 1N6282A-E3/51 require a heatsink for continuous operation?
No external heatsink is required for transient suppression duty (duty cycle ≤ 0.01 %), but for sustained power dissipation, its 6.5 W steady-state rating at TL = 75 °C and RθJA = 75 °C/W means PCB copper area and lead length significantly impact thermal performance. Derating is mandatory above 25 °C ambient per Figure 2 in the datasheet.
1N6282A-E3/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 36.2A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1N6282A-E3/51 FAQ
1.How can I place an order for 1N6282A-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6282A-E3/51 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 1N6282A-E3/51 reliable?
The price and inventory of 1N6282A-E3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6282A-E3/51 is usually 5 days.
3.What payment methods are accepted for 1N6282A-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6282A-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6282A-E3/51?
1N6282A-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6282A-E3/51 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 1N6282A-E3/51?
For technical support, including 1N6282A-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6282A-E3/51 requirements.
6.How does Aetrix verify that 1N6282A-E3/51 is sourced from the original manufacturer or authorized distributors?
All 1N6282A-E3/51 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 1N6282A-E3/51 meets industry standards.
7.What is the process for return or replacement of 1N6282A-E3/51?
All 1N6282A-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6282A-E3/51, 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 1N6282A-E3/51 part is unused and in its original packaging.
Return procedure for 1N6282A-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6282A-E3/51 Tags
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