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Vishay General Semiconductor - Diodes Division 1N6283A-E3/51
- Part No.:
- 1N6283A-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6283A-E3/51.pdf
- Description:
- TVS DIODE 28.2VWM 45.7VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:9,630
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Product details
Overview
1N6283A-E3/51 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 33 V breakdown voltage (VBR = 31.4–34.7 V at 1.0 mA), 28.2 V maximum working peak reverse voltage (VWM), 45.7 V clamping voltage (VC) at 32.8 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used to safeguard MOSFETs, ICs, and sensor interfaces in industrial and automotive electronics.
For engineers reviewing the 1N6283A-E3/51 datasheet, 1N6283A-E3/51 pinout, 1N6283A-E3/51 application, or 1N6283A-E3/51 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, clamping behavior under surge conditions, thermal derating curves, and direct alternative options for circuit protection redesign or supply continuity planning.
Technical Context
This unidirectional TVS diode operates as a fast-acting shunt clamp, activating within <1 ns when transient voltage exceeds its 31.4–34.7 V breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and low incremental surge resistance, enabling precise overvoltage limiting without latch-up or degradation under repetitive 10/1000 µs pulses at 0.01 % duty cycle.
The device sustains 200 A non-repetitive forward surge current (IFSM) and exhibits 3.5 V max forward voltage at 100 A, confirming robust conduction capability during high-energy transients. Thermal resistance of 15.4 °C/W (junction-to-lead) supports reliable power dissipation up to 6.5 W on infinite heatsink at TL = 75 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 31.4 V / 34.7 V at 1.0 mA - defines precise clamping onset threshold for overvoltage detection |
| VWM | 28.2 V - maximum continuous reverse voltage before leakage exceeds 1.0 µA, sets safe operating margin below VBR |
| VC @ IPPM | 45.7 V at 32.8 A - clamped voltage seen by protected circuit during full 1500 W transient, limiting stress on downstream components |
| PPPM | 1500 W - peak pulse power handling with 10/1000 µs waveform, suitable for lightning-induced surges per IEC 61000-4-5 Level 4 |
| IFSM | 200 A - 8.3 ms half-sine surge current rating confirms reliability against inductive switch-off spikes in motor drives |
| TJ range | −55 °C to +175 °C - extended junction temperature range enables deployment in under-hood automotive and industrial control environments |
| RθJL | 15.4 °C/W - low junction-to-lead thermal resistance allows effective heat transfer to PCB copper or heatsink without forced cooling |
Pinout & Package
Package: JEDEC DO-201AD (Case Style 1.5KE), molded epoxy body with matte tin-plated leads; RoHS-compliant E3 suffix; 0.375" (9.5 mm) lead length standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point during surge conduction | Connected to ground or low-impedance return path to complete shunt clamping loop |
| Cathode | Reverse-biased terminal during normal operation; clamping node during overvoltage | Marked with color band; connects to protected line (e.g., 24 V rail or CAN H); absorbs transient energy into ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures ±5 % VBR tolerance and long-term stability under thermal cycling and humidity exposure |
| 1500 W peak pulse power (10/1000 µs) | Provides single-event surge immunity exceeding IEC 61000-4-5 Ed. 3 requirements for industrial equipment |
| Clamping response time <1 ns | Prevents voltage overshoot beyond protected IC's absolute maximum ratings during fast-rising ESD or switching transients |
| Low incremental surge resistance | Minimizes VC – VBR delta (ΔVC = 14.3 V), reducing energy dissipated in downstream FETs or regulators |
| AEC-Q101 qualified option available | HE3 variant supports automotive-grade reliability validation; E3 version meets commercial-grade performance and process controls |
Applications
| Industrial Motor Drive Protection | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Suppresses inductive kickback from solenoid valves and relay coils in PLC output modules. IC Role / Device Role / Timing Role: Shunt-clamp TVS placed across 24 V DC load outputs to limit flyback voltage to ≤45.7 V during turn-off. Use Value: Prevents gate oxide rupture in driving N-channel MOSFETs and extends lifetime of optocoupler isolation stages. |
Use Scenario: Protects LIN bus transceivers and microcontroller I/O pins from battery dump and load-dump transients. IC Role / Device Role / Timing Role: Unidirectional clamp between LIN line and chassis ground, activated only during positive overvoltage events. Use Value: Maintains signal integrity below 45.7 V clamping level while surviving 12 V system-level load-dump pulses per ISO 7637-2 Pulse 5a. |
| Telecom Power Supply Input | Consumer Appliance Mainboard |
|
Use Scenario: Guards AC/DC adapter secondary-side 12 V or 5 V rails against induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: Primary overvoltage limiter upstream of DC-DC converters and LDOs feeding baseband processors. Use Value: Limits transient energy to <1500 W peak, preventing latch-up in PMICs and avoiding brownout resets in communication ICs. |
Use Scenario: Shields MCU reset lines and EEPROM programming pins from ESD events during user interface button actuation. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF) unidirectional TVS tied between I/O pin and ground, with cathode to signal line. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) to sub-50 V levels within <1 ns, preserving firmware integrity and eliminating false resets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33A-E3/52 | Lower PPPM (600 W), smaller SMB package (JEDEC DO-214AA), 33 V VBR (31.4–34.7 V), same VWM/VC specs | Better suited for space-constrained PCBs; lower surge capacity limits use to Class 3 IEC 61000-4-5 or lower-energy transients | Select when board area is critical and peak surge energy does not exceed 600 W; verify thermal relief via RθJA = 110 °C/W |
| 1.5KE33A-E3/54 | Identical electrical specs and DO-201AD package; differs only in packaging format (tape-and-reel quantity: 1400 vs. 1000 units) | No functional or layout impact; fully interchangeable in schematic and footprint | Preferred for high-volume production where tape-and-reel logistics align with SMT line feeders; identical performance and qualification |
Compared with 1N6283A-E3/51, SMBJ33A-E3/52 trades surge robustness for compactness, while 1.5KE33A-E3/54 offers identical protection in a different reel configuration - enabling drop-in replacement where procurement or assembly constraints dictate packaging format.
Availability
1N6283A-E3/51 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power supplies, and consumer appliance mainboards requiring stable component supply and consistent surge immunity performance across production batches.
Supply support for 1N6283A-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, rectifiers, and protection devices with emphasis on reliability, precision, and application-specific qualification.
The 1N6283A-E3/51 belongs to Vishay's TRANSZORB® TVS family, engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where failure due to voltage surges must be eliminated.
FAQ
What is the breakdown voltage tolerance of the 1N6283A-E3/51?
The 1N6283A-E3/51 has a specified breakdown voltage (VBR) range of 31.4 V to 34.7 V at 1.0 mA test current, corresponding to a ±5 % tolerance around the nominal 33 V rating. This tight tolerance ensures predictable clamping onset across production lots and temperature ranges from −55 °C to +175 °C, critical for protecting voltage-sensitive ICs without premature triggering.
Does the 1N6283A-E3/51 meet automotive qualification standards?
The 1N6283A-E3/51 is RoHS-compliant and rated for commercial-grade operation. While it shares the same die and construction as AEC-Q101-qualified variants (e.g., 1N6283AHE3_B), the E3/51 suffix itself is not AEC-Q101 certified. For automotive applications requiring formal qualification, engineers should specify the HE3 variant with appropriate revision code (e.g., 1N6283AHE3_B).
How does the clamping voltage of the 1N6283A-E3/51 compare to its breakdown voltage?
The 1N6283A-E3/51 clamps at 45.7 V when subjected to its rated 32.8 A peak pulse current (10/1000 µs), resulting in a 14.3 V differential (ΔVC) above the minimum VBR of 31.4 V. This low incremental clamping voltage reflects minimal dynamic resistance during surge conduction, directly limiting stress on downstream components such as MOSFETs and voltage regulators.
Can the 1N6283A-E3/51 be used in bidirectional configurations?
No - the 1N6283A-E3/51 is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. Bidirectional operation requires the "CA" suffix (e.g., 1N6283CA). Using the 1N6283A-E3/51 in reverse-biased signal paths will result in forward conduction and potential damage; always verify polarity alignment in circuit layout.
What is the thermal resistance profile of the 1N6283A-E3/51 under real-world PCB mounting?
The 1N6283A-E3/51 has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W and junction-to-ambient (RθJA) of 75 °C/W. When mounted on a standard FR-4 PCB with 1 oz. copper and two 0.375" leads, it safely dissipates 6.5 W continuously at TL = 75 °C. Derating is required above 25 °C ambient per Figure 2 in Vishay document 88301.
1N6283A-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):
- 28.2V
- Voltage - Breakdown (Min):
- 31.4V
- Voltage - Clamping (Max) @ Ipp:
- 45.7V
- Current - Peak Pulse (10/1000µs):
- 32.8A
- 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
1N6283A-E3/51 FAQ
1.How can I place an order for 1N6283A-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6283A-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 1N6283A-E3/51 reliable?
The price and inventory of 1N6283A-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 1N6283A-E3/51 is usually 5 days.
3.What payment methods are accepted for 1N6283A-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6283A-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6283A-E3/51?
1N6283A-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6283A-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 1N6283A-E3/51?
For technical support, including 1N6283A-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6283A-E3/51 requirements.
6.How does Aetrix verify that 1N6283A-E3/51 is sourced from the original manufacturer or authorized distributors?
All 1N6283A-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 1N6283A-E3/51 meets industry standards.
7.What is the process for return or replacement of 1N6283A-E3/51?
All 1N6283A-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6283A-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 1N6283A-E3/51 part is unused and in its original packaging.
Return procedure for 1N6283A-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6283A-E3/51 Tags
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