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Vishay General Semiconductor - Diodes Division 1N6276A-E3/73
- Part No.:
- 1N6276A-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6276A-E3/73.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:7,308
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Product details
Overview
1N6276A-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 15.2 V to 16.8 V breakdown voltage range at 1.0 mA test current, 13.6 V maximum standoff voltage, 22.5 V clamping voltage at 66.7 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive power supplies, industrial sensor interfaces, and telecom line cards.
For engineers reviewing the 1N6276A-E3/73 datasheet, 1N6276A-E3/73 pinout, 1N6276A-E3/73 application, or 1N6276A-E3/73 equivalent, this part serves as a high-energy, fast-response (≤1 ns), glass-passivated unidirectional TVS for robust ESD and lightning surge suppression where precise clamping and low leakage (<1.0 µA at 13.6 V) are required.
Technical Context
This device operates as a silicon avalanche diode with unidirectional polarity, leveraging a glass-passivated junction for stable breakdown and low incremental surge resistance. Its clamping behavior is defined by a 22.5 V maximum VC at IPPM = 66.7 A under 10/1000 µs transient conditions, with thermal resistance RθJL = 15.4 °C/W enabling reliable power dissipation during repetitive surges.
The 1N6276A-E3/73 exhibits a temperature coefficient of VBR = +0.086 %/°C and is rated for operation from –55 °C to +175 °C junction temperature. It supports 200 A non-repetitive forward surge current (8.3 ms half-sine) and maintains ≤3.5 V forward voltage at 100 A - critical for minimizing conduction loss during fault events in high-current DC systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 15.2 V to 16.8 V at 1.0 mA - defines precise turn-on threshold for overvoltage triggering |
| Standoff Voltage VWM | 13.6 V maximum - ensures no conduction during normal 12 V rail operation with margin |
| Clamping Voltage VC | 22.5 V at 66.7 A (10/1000 µs) - limits downstream voltage stress during surge events |
| Peak Pulse Power PPPM | 1500 W - sustains high-energy transients such as ISO 7637-2 Pulse 5a without failure |
| Leakage Current ID | <1.0 µA at 13.6 V - prevents standby power loss in battery-powered systems |
| Junction Temperature Range | –55 °C to +175 °C - supports under-hood automotive and industrial ambient environments |
| Package Thermal Resistance RθJL | 15.4 °C/W - enables effective heat transfer to PCB copper when mounted per JEDEC standards |
Pinout & Package
Package: Case Style 1.5KE - molded epoxy body with matte tin-plated leads; RoHS-compliant, commercial-grade (E3 suffix); meets UL 94 V-0 flammability rating.
| 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 |
| Cathode | Current exit point; marked with color band | Connected to protected line (e.g., 12 V rail or signal input) - reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity |
| 1500 W peak pulse power (10/1000 µs) | Withstands automotive load dump and industrial switching surges without degradation |
| Response time ≤1 ns | Clamps before sensitive ICs (e.g., microcontrollers, CAN transceivers) experience overstress |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., EFT bursts) |
| AEC-Q101 qualification available (HE3 variant) | Validated for automotive electronics per stress test requirements - not applicable to E3/73 |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs in engine control units (ECUs) against ISO 7637-2 Pulse 5a load dump transients. IC Role / Device Role: Primary clamping element placed between battery feed and LDO/regulator input. Use Value: Limits voltage to ≤22.5 V during 1500 W surge, preventing regulator latch-up and MOSFET gate oxide damage. |
Use Scenario: Shielding 4–20 mA current loop inputs in PLC analog modules from field-induced surges. IC Role / Device Role: Unidirectional shunt protector across input terminals, referenced to system ground. Use Value: Maintains <1.0 µA leakage at 13.6 V standoff, preserving loop accuracy while clamping >1 kV transients. |
| Telecom Line Card Surge Protection | Consumer Power Adapter Input Protection |
Use Scenario: Front-end protection on AC/DC converter inputs in DSLAM line cards exposed to lightning-induced surges. IC Role / Device Role: First-stage TVS in series with MOV and fuse on AC mains input. Use Value: Fast 1 ns response complements slower MOVs, handling initial fast-edge components of 8/20 µs lightning surges. |
Use Scenario: Secondary-side DC output protection in USB-C PD adapters against reverse-polarity and hot-plug transients. IC Role / Device Role: Unidirectional clamp on +20 V output rail before USB-PD controller and port switch. Use Value: 13.6 V VWM allows safe operation across full PD voltage range (5–20 V), with 22.5 V VC safeguarding downstream silicon. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A | Same 16 V nominal breakdown, but 600 W PPPM (SMB package), lower IPPM = 33.3 A | Lower energy handling; suited for space-constrained PCBs where 1500 W is not required | Select SMBJ16A only when board area is critical and surge threat level is limited to IEC 61000-4-5 Level 3 (0.5 kV) |
| 1.5KE16A | Identical electrical specs and 1.5KE package; differs only in packaging format (E3/54 vs E3/73 tape-and-reel quantity) | No functional difference - same die, same test conditions, same qualification | 1.5KE16A is functionally identical to 1N6276A-E3/73 and may be used interchangeably in design |
Compared with SMBJ16A, the 1N6276A-E3/73 delivers 2.5× higher surge energy absorption and superior thermal robustness in the larger 1.5KE case; compared with 1.5KE16A, it shares identical performance but differs only in reel quantity and part numbering convention - both are drop-in replacements in layout and schematic.
Availability
1N6276A-E3/73 is available at Aetrix Electronics and suitable for automotive power management, industrial sensor conditioning, and telecom infrastructure requiring stable component supply with traceable sourcing and long-lifecycle support.
Supply support for 1N6276A-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, rectifiers, TVS devices, and optoelectronics with emphasis on reliability and application-specific performance.
The 1N6276A-E3/73 belongs to Vishay's TRANSZORB® family of high-power TVS diodes, engineered for robust transient suppression in harsh environments including automotive, industrial, and communications systems.
FAQ
What is the breakdown voltage tolerance of the 1N6276A-E3/73?
The 1N6276A-E3/73 has a specified breakdown voltage range of 15.2 V to 16.8 V at 1.0 mA test current, representing ±5.3% tolerance about the nominal 16 V rating. This tight VBR window ensures consistent clamping onset across production lots and supports reliable coordination with downstream overvoltage protection circuits in designs using the 1N6276A-E3/73.
Is the 1N6276A-E3/73 RoHS compliant and lead-free?
Yes, the 1N6276A-E3/73 carries the E3 suffix, indicating full RoHS compliance per Directive 2011/65/EU and JESD 201 Class 1A whisker testing. Its matte tin-plated leads are compatible with standard Pb-free reflow profiles and meet IPC-J-STD-020 moisture sensitivity level (MSL) 1 requirements - confirmed in Vishay's official documentation for the 1N6276A-E3/73.
Can the 1N6276A-E3/73 be used in bidirectional configurations?
No, the 1N6276A-E3/73 is strictly unidirectional - its cathode is marked with a color band and it conducts only in reverse bias during clamping. For bidirectional protection, Vishay offers the 1N6276CA variant (or 1.5KE16CA), which lacks polarity marking and clamps symmetrically in both directions. The 1N6276A-E3/73 must not be substituted in CA-designated circuits without redesign.
What is the maximum clamping voltage of the 1N6276A-E3/73 under surge conditions?
The 1N6276A-E3/73 has a maximum clamping voltage (VC) of 22.5 V at 66.7 A peak pulse current with a 10/1000 µs waveform. This value is guaranteed per Vishay's datasheet and represents the upper limit of voltage seen by downstream components during worst-case surge events - a key parameter used to verify safe operating margins for ICs protected by the 1N6276A-E3/73.
Does the 1N6276A-E3/73 meet AEC-Q101 qualification?
No, the 1N6276A-E3/73 is commercial-grade only. AEC-Q101 qualification applies exclusively to variants with the HE3 suffix (e.g., 1.5KE16AHE3_B). The 1N6276A-E3/73 does not undergo the extended stress testing required for automotive use, and its datasheet explicitly states "1.5KE250A to 1.5KE540A are commercial grade only" - a classification that includes the 1N6276A-E3/73.
1N6276A-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 66.7A
- 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
1N6276A-E3/73 FAQ
1.How can I place an order for 1N6276A-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6276A-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 1N6276A-E3/73 reliable?
The price and inventory of 1N6276A-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 1N6276A-E3/73 is usually 5 days.
3.What payment methods are accepted for 1N6276A-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6276A-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6276A-E3/73?
1N6276A-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6276A-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 1N6276A-E3/73?
For technical support, including 1N6276A-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6276A-E3/73 requirements.
6.How does Aetrix verify that 1N6276A-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1N6276A-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 1N6276A-E3/73 meets industry standards.
7.What is the process for return or replacement of 1N6276A-E3/73?
All 1N6276A-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6276A-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 1N6276A-E3/73 part is unused and in its original packaging.
Return procedure for 1N6276A-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6276A-E3/73 Tags
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