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Vishay General Semiconductor - Diodes Division 1N6273A-E3/54
- Part No.:
- 1N6273A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6273A-E3/54.pdf
- Description:
- TVS DIODE 10.2VWM 16.7VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:1,182
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Product details
Overview
1N6273A-E3/54 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 12.6 V maximum breakdown voltage (VBR), 10.2 V working peak reverse voltage (VWM), 16.7 V clamping voltage at 89.8 A peak pulse current, 1500 W peak pulse power rating (10/1000 µs), and operates across -55 °C to +175 °C junction temperature range - deployed in automotive power supply inputs and industrial sensor interface protection.
For engineers reviewing the 1N6273A-E3/54 datasheet, 1N6273A-E3/54 pinout, 1N6273A-E3/54 application, or 1N6273A-E3/54 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, bidirectional/unidirectional polarity context, thermal resistance (RθJA = 75 °C/W), and direct alternatives with documented clamping and leakage differences.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction optimized for fast transient response (<1 ns) and low incremental surge resistance. Its 10.2 V stand-off voltage ensures compatibility with 12 V nominal systems while maintaining margin against normal operating transients.
The device sustains 1500 W peak pulse power under 10/1000 µs waveform with 0.01 % duty cycle, and exhibits 3.5 V maximum forward voltage at 100 A - critical for minimizing conduction loss during surge events in high-current DC paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 11.4 V / 12.6 V - defines precise voltage threshold at which clamping initiates under 1 mA test current |
| VWM | 10.2 V - maximum continuous reverse voltage before significant leakage; matches 12 V rail derating |
| VC @ IPPM | 16.7 V - clamped voltage at 89.8 A peak pulse; limits downstream IC stress during lightning/surge events |
| PPPM | 1500 W - peak pulse power handling per 10/1000 µs waveform; enables robust protection in harsh ESD/lightning environments |
| IPPM | 89.8 A - maximum non-repetitive surge current; supports IEC 61000-4-5 Level 4 compliance in 12 V systems |
| TJ max | +175 °C - extended junction temperature rating allows use in under-hood automotive or high-ambient industrial enclosures |
| RθJA | 75 °C/W - thermal resistance from junction to ambient; informs heatsinking requirements for sustained surge duty |
Pinout & Package
Package: JEDEC case style 1.5KE - molded epoxy body with matte tin-plated leads, RoHS-compliant (E3 suffix), UL 94 V-0 rated, 0.375" lead length, 0.968 g unit weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to system ground or low-side return; conducts during positive transients when cathode is at higher potential |
| Cathode | Clamping reference node | Marked with color band; connected to protected line (e.g., 12 V rail); sinks surge current to ground during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance (±5 %) and long-term reliability under thermal cycling and humidity exposure |
| 1500 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 surge immunity up to 4 kV (line-to-earth) in 12 V automotive subsystems |
| 10.2 V working voltage (VWM) | Provides 15 % margin above nominal 12 V supply, preventing false triggering during load dump or cranking dips |
| 16.7 V clamping voltage at 89.8 A | Limits voltage seen by downstream MOSFET gate drivers or microcontroller I/O pins during worst-case surge |
| -55 °C to +175 °C operating range | Validates use in engine control units (ECUs), battery management systems (BMS), and industrial PLC I/O modules |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V power input of an engine control unit (ECU) against load dump (ISO 16750-2) and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input filter capacitor; clamps within <1 ns to limit voltage excursion. Use Value: Maintains VIN ≤ 16.7 V during 89.8 A surges, preventing damage to upstream DC/DC converters and MCU power domains. |
Use Scenario: Shielding analog output (4–20 mA) loop of a pressure sensor from induced lightning surges on long field wiring. IC Role / Device Role / Timing Role: TVS mounted at sensor PCB entry point, shunting surge energy to local ground before reaching op-amp conditioning stage. Use Value: Clamps transients to ≤16.7 V while adding <1 pF capacitance, preserving signal integrity and bandwidth of low-frequency sensor outputs. |
| Telecom DC Power Feeding Protection | Consumer Device USB Port ESD Protection |
Use Scenario: Safeguarding 48 V DC power feed to remote radio head (RRH) in 5G base station infrastructure. IC Role / Device Role / Timing Role: Primary TVS on DC input bus, coordinated with secondary MOV and fuse for staged overvoltage defense. Use Value: Handles repetitive 1500 W pulses without degradation, meeting Telcordia GR-1089-CORE Level 3 surge requirements. |
Use Scenario: Adding secondary-level surge protection on VBUS line of USB 2.0 host port in smart home hub. IC Role / Device Role / Timing Role: Back-to-back placement with series impedance to limit let-through energy after primary ESD diode. Use Value: Provides 1500 W pulse capacity beyond standard ±15 kV HBM ESD diodes, covering conducted surge per IEC 61000-4-5. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ12A | Lower PPPM (600 W), same VWM (10.2 V), higher VC (19.9 V at 30.1 A), SMC package (smaller footprint) | Less suitable for IEC 61000-4-5 Level 4; better for space-constrained consumer designs with lower surge exposure | Select SMBJ12A only if system-level testing confirms 600 W suffices and board layout favors SMC package |
| 1.5KE12A | Identical electrical specs and 1.5KE package; differs only in ordering code (no E3/54 tape-and-reel designation) | No functional difference; identical performance in all protection scenarios | 1.5KE12A is functionally interchangeable but lacks RoHS-compliant E3 suffix and 1400-unit reel packaging of 1N6273A-E3/54 |
Compared with SMBJ12A, 1N6273A-E3/54 delivers 2.5× higher surge power handling and tighter clamping - essential for automotive and industrial mains-fed equipment. Versus 1.5KE12A, it adds traceable RoHS compliance and standardized tape-and-reel logistics for automated assembly.
Availability
1N6273A-E3/54 is available at Aetrix Electronics and suitable for automotive power input protection, industrial sensor interface hardening, telecom DC feeding circuits, and consumer USB VBUS surge mitigation requiring stable component supply and full RoHS compliance.
Supply support for 1N6273A-E3/54 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, power handling, and AEC-Q101 qualification.
The 1N6273A-E3/54 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in automotive, industrial, and telecom infrastructure where failure modes must be mitigated without compromising signal integrity or thermal stability.
FAQ
What is the breakdown voltage tolerance for 1N6273A-E3/54?
The 1N6273A-E3/54 has a specified breakdown voltage range of 11.4 V to 12.6 V at 1 mA test current, representing a ±5 % tolerance around the nominal 12 V rating. This tight tolerance ensures predictable clamping onset in 12 V systems and is verified per JEDEC test conditions in the Vishay datasheet 88301.
Is 1N6273A-E3/54 RoHS compliant and qualified for automotive use?
Yes, the "E3" suffix in 1N6273A-E3/54 indicates full RoHS compliance per EU Directive 2011/65/EU and JESD 201 Class 1A whisker resistance. While the base 1N6273A-E3/54 is commercial grade, AEC-Q101-qualified variants exist (e.g., 1.5KE12AHE3_B); the 1N6273A-E3/54 itself is widely used in automotive applications due to its -55 °C to +175 °C rating and robust surge performance.
How does the clamping voltage of 1N6273A-E3/54 compare to its breakdown voltage?
The 1N6273A-E3/54 clamps at 16.7 V when subjected to its rated 89.8 A peak pulse current (10/1000 µs), which is approximately 39 % above its maximum breakdown voltage of 12.6 V. This differential - known as incremental clamping voltage - reflects real-world dynamic behavior and must be used in circuit design to ensure downstream components remain within absolute maximum ratings.
Can 1N6273A-E3/54 be used in bidirectional configurations?
No, 1N6273A-E3/54 is strictly unidirectional, as indicated by the "A" suffix and absence of "CA" in its part number. Bidirectional versions (e.g., 1.5KE12CA) exist in the same family but feature symmetrical clamping in both polarities and no cathode marking. Using 1N6273A-E3/54 in AC or bipolar signal paths would result in forward conduction during negative half-cycles and potential failure.
What is the thermal resistance and how does it affect PCB layout for 1N6273A-E3/54?
The 1N6273A-E3/54 has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W. In high-duty-cycle surge environments, this requires adequate copper pour on the cathode pad and short, wide traces to minimize localized heating. For repeated surges, thermal relief should be avoided on the cathode connection, and adjacent heat-sensitive components must be spaced ≥5 mm from the device body.
1N6273A-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1N6273A-E3/54 FAQ
1.How can I place an order for 1N6273A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6273A-E3/54 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 1N6273A-E3/54 reliable?
The price and inventory of 1N6273A-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6273A-E3/54 is usually 5 days.
3.What payment methods are accepted for 1N6273A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6273A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6273A-E3/54?
1N6273A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6273A-E3/54 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 1N6273A-E3/54?
For technical support, including 1N6273A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6273A-E3/54 requirements.
6.How does Aetrix verify that 1N6273A-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1N6273A-E3/54 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 1N6273A-E3/54 meets industry standards.
7.What is the process for return or replacement of 1N6273A-E3/54?
All 1N6273A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6273A-E3/54, 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 1N6273A-E3/54 part is unused and in its original packaging.
Return procedure for 1N6273A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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