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Vishay General Semiconductor - Diodes Division 1N6273AHE3/51
- Part No.:
- 1N6273AHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6273AHE3/51.pdf
- Description:
- TVS DIODE 10.2VWM 16.7VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,860
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Product details
Overview
1N6273AHE3/51 from Vishay General Semiconductor is a uni-directional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 12 V breakdown voltage (VBR = 11.4–12.6 V at 1.0 mA), 10.2 V maximum working voltage (VWM), 16.7 V clamping voltage (VC) at 89.8 A peak pulse current, 1500 W peak pulse power rating (10/1000 µs), and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the 1N6273AHE3/51 datasheet, 1N6273AHE3/51 pinout, 1N6273AHE3/51 application, or 1N6273AHE3/51 equivalent, this device serves as a robust, glass-passivated, leaded TVS solution for protecting MOSFETs, microcontrollers, and sensor interfaces against inductive switching transients and ESD events in industrial and automotive environments.
Technical Context
This uni-directional TVS diode operates with fast clamping response (<1 ns), low incremental surge resistance, and stable thermal performance up to 175 °C junction temperature. Its 1.5KE package supports high-reliability soldering per J-STD-002 and JESD 22-B102, with matte tin-plated leads meeting JESD 201 Class 2 whisker resistance.
The device complies with UL 94 V-0 flammability standards and delivers consistent clamping behavior under repetitive 10/1000 µs surges at 0.01% duty cycle. Its 75 °C/W junction-to-ambient thermal resistance enables effective heat dissipation on standard PCB layouts without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 11.4 V / 12.6 V at 1.0 mA - defines precise voltage threshold where clamping initiates reliably |
| VWM | 10.2 V - maximum continuous reverse operating voltage before leakage exceeds 5.0 µA |
| VC @ IPPM | 16.7 V at 89.8 A - clamping voltage during full 1500 W transient, limiting downstream stress |
| PPPM | 1500 W (10/1000 µs) - peak surge energy handling capacity for lightning and inductive load spikes |
| TJ max. | +175 °C - enables operation in under-hood automotive and high-temperature industrial enclosures |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including HTOL and TC |
| Package | Case Style 1.5KE - axial-leaded, molded epoxy body with UL 94 V-0 rating and 0.375" lead length |
Pinout & Package
1N6273AHE3/51 uses an axial-leaded DO-201AD (Case Style 1.5KE) package with cathode indicated by a color band. Leads are matte tin-plated and solderable per J-STD-002; no internal pin numbering applies - terminals are functionally defined as anode and cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Current entry point in forward bias | Connected to lower-potential side of protected circuit; used for DC rail protection with polarity alignment |
| Cathode (banded end) | Current exit point in forward bias; clamping node in reverse bias | Connected to higher-potential side or ground return; absorbs surge energy when VAK > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| 1500 W peak pulse power (10/1000 µs) | Withstands high-energy transients from relay coil collapse or motor commutation without degradation |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, high-temperature operating life, and mechanical shock |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage exposure to protected ICs while maintaining margin above VWM |
| UL 94 V-0 compliant epoxy body | Provides flame-retardant mechanical encapsulation suitable for safety-critical industrial and automotive assemblies |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Primary shunt clamping device placed across input filter capacitor, activated within <1 ns upon overvoltage detection. Use Value: Limits voltage to ≤16.7 V during 1500 W surges, preventing damage to LDOs, CAN transceivers, and MCU power domains. |
Use Scenario: Safeguarding analog front-end inputs of pressure/temperature sensors in PLC modules exposed to field wiring transients. IC Role / Device Role / Timing Role: Standoff protector on sensor signal line, conducting only during >12.6 V events while remaining high-impedance during normal 0–5 V operation. Use Value: Maintains signal integrity with <5.0 µA leakage at 10.2 V, enabling accurate sub-mV measurements without offset drift. |
| DC Motor Drive Gate Protection | Telecom Line Surge Suppression |
Use Scenario: Shielding N-channel MOSFET gate drivers from inductive kickback during PWM switching in BLDC controllers. IC Role / Device Role / Timing Role: Fast-clamping TVS connected between gate and source, triggered by dV/dt exceeding VBR. Use Value: Clamps gate-source voltage to ≤16.7 V within nanoseconds, preventing oxide breakdown and ensuring FET longevity. |
Use Scenario: Secondary-level protection on 48 V PoE-powered telecom interface cards subjected to induced lightning surges. IC Role / Device Role / Timing Role: Downstream TVS stage following gas discharge tube (GDT), absorbing residual energy after GDT crowbar action. Use Value: Handles 89.8 A peak current at 16.7 V clamp, reducing let-through energy to safe levels for Ethernet PHY ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ12A | DO-214AA package, 13.3 V VBR, 19.9 V VC @ 75.5 A, 600 W PPPM | Lower power rating and surface-mount form factor; suited for space-constrained PCBs but not direct replacement for 1500 W demands | Select SMBJ12A only when board area is critical and surge energy is limited to ≤600 W |
| 1.5KE12A-E3/54 | Same electrical specs and 1.5KE package, but commercial-grade (non-AEC-Q101) and RoHS-compliant E3 suffix only | Lacks automotive qualification; acceptable for industrial/commercial systems where AEC-Q101 is not mandated | Choose 1.5KE12A-E3/54 for cost-sensitive non-automotive designs requiring identical clamping performance |
Compared with SMBJ12A and 1.5KE12A-E3/54, the 1N6273AHE3/51 uniquely combines AEC-Q101 qualification, 1500 W surge capability, and axial-leaded 1.5KE packaging-making it the only option among the three qualified for under-hood automotive deployment with full load-dump immunity.
Availability
1N6273AHE3/51 is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor module production, and telecom power supply development requiring stable component supply and long-term lifecycle support.
Supply support for 1N6273AHE3/51 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 high-reliability diodes, MOSFETs, and passive components for demanding industrial and automotive applications.
The 1N6273AHE3/51 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust transient suppression in harsh environments where failure is not an option-emphasizing clamping precision, surge endurance, and qualification-grade consistency.
FAQ
What is the breakdown voltage range of the 1N6273AHE3/51?
The 1N6273AHE3/51 has a guaranteed breakdown voltage (VBR) range of 11.4 V to 12.6 V at a test current of 1.0 mA. This tight tolerance ensures predictable clamping onset across production lots and temperature extremes, supporting reliable overvoltage protection in 12 V systems where margin above nominal rail is critical.
Is the 1N6273AHE3/51 suitable for automotive applications?
Yes, the 1N6273AHE3/51 is AEC-Q101 qualified and explicitly rated for automotive use. Its construction-including glass-passivated junction, UL 94 V-0 epoxy body, and validation across temperature cycling, high-temperature operating life, and mechanical shock-makes it appropriate for engine control units, body electronics, and ADAS modules.
What is the clamping voltage of the 1N6273AHE3/51 under maximum surge conditions?
Under its rated 1500 W peak pulse condition (10/1000 µs waveform), the 1N6273AHE3/51 clamps to a maximum of 16.7 V at 89.8 A peak pulse current (IPPM). This value is measured per JEDEC standards and represents the upper limit of voltage imposed on protected circuitry during worst-case transients.
Does the 1N6273AHE3/51 have a bi-directional variant?
No-the 1N6273AHE3/51 is strictly a uni-directional TVS diode, identified by the "A" suffix and cathode band marking. For bi-directional operation, Vishay offers the 1N6273CAHE3/51 variant (not the same part), which provides symmetrical clamping for AC-coupled or floating signal lines.
What package type does the 1N6273AHE3/51 use, and what are its key mechanical attributes?
The 1N6273AHE3/51 uses the axial-leaded Case Style 1.5KE (DO-201AD) package: molded epoxy body meeting UL 94 V-0, 0.375" (9.5 mm) lead length, matte tin-plated leads compliant with J-STD-002, and JESD 201 Class 2 whisker resistance. Its robust mechanical form supports manual and wave soldering in high-reliability assemblies.
1N6273AHE3/51 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):
- 10.2V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 16.7V
- Current - Peak Pulse (10/1000µs):
- 89.8A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1N6273AHE3/51 FAQ
1.How can I place an order for 1N6273AHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6273AHE3/51 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 1N6273AHE3/51 reliable?
The price and inventory of 1N6273AHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6273AHE3/51 is usually 5 days.
3.What payment methods are accepted for 1N6273AHE3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6273AHE3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6273AHE3/51?
1N6273AHE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6273AHE3/51 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 1N6273AHE3/51?
For technical support, including 1N6273AHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6273AHE3/51 requirements.
6.How does Aetrix verify that 1N6273AHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1N6273AHE3/51 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 1N6273AHE3/51 meets industry standards.
7.What is the process for return or replacement of 1N6273AHE3/51?
All 1N6273AHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6273AHE3/51, 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 1N6273AHE3/51 part is unused and in its original packaging.
Return procedure for 1N6273AHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6273AHE3/51 Tags
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