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Vishay General Semiconductor - Diodes Division 1N6293A-E3/51
- Part No.:
- 1N6293A-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6293A-E3/51.pdf
- Description:
- TVS DIODE 70.1VWM 113VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,594
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Product details
Overview
1N6293A-E3/51 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary-side overvoltage clamping in power supply input stages and signal line protection. It features a 77.9 V to 86.1 V breakdown voltage (VBR) at 1 mA, 70.1 V maximum standoff voltage (VWM), 113 V clamping voltage (VC) at 13.3 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used in industrial motor drives and automotive body control modules.
For engineers reviewing the 1N6293A-E3/51 datasheet, 1N6293A-E3/51 pinout, 1N6293A-E3/51 application, or 1N6293A-E3/51 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, thermal resistance (RθJA = 75 °C/W), polarity marking convention, and direct alternatives for surge protection design validation.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: when transient voltage exceeds VBR, it avalanches into low-impedance conduction, diverting surge current away from downstream ICs. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1 µA at VWM).
Designed for single-pulse transients per IEC 61000-4-5 (10/1000 µs), it supports repetitive surges at ≤0.01% duty cycle and withstands 200 A non-repetitive forward surge (8.3 ms half-sine). Junction temperature range spans −55 °C to +175 °C, enabling use in under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 77.9 V / 86.1 V at 1 mA - defines precise clamping onset threshold for reliable overvoltage detection |
| VWM | 70.1 V - maximum continuous reverse operating voltage before leakage rises above 1 µA |
| VC @ IPPM | 113 V at 13.3 A - peak clamped voltage during 1500 W transient, limiting stress on protected circuitry |
| PPPM | 1500 W - surge energy handling capacity for 10/1000 µs waveform, critical for lightning and EFT immunity |
| RθJA | 75 °C/W - thermal resistance from junction to ambient, informs heatsinking requirements in enclosed designs |
| IFSM | 200 A - peak forward surge current rating (8.3 ms), validates robustness against inrush or fault currents |
| TJ range | −55 °C to +175 °C - extended temperature operation suitable for automotive engine bay and industrial controls |
Pinout & Package
Package: JEDEC DO-201AD (Case Style 1.5KE), axial-leaded, molded epoxy body with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Cathode identified by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point during clamping | Connected to lower-potential side of protected line; enables unidirectional surge diversion to ground |
| Cathode | Reverse-biased terminal during normal operation | Marked with color band; ties to higher-potential rail (e.g., VIN); avalanche conduction initiates here during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance (±5%) and low leakage (<1 µA) across temperature and lifetime |
| 1500 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV line-to-ground) without degradation in standard PCB layouts |
| Fast response time | Sub-nanosecond clamping initiation (≤1 ns) prevents voltage overshoot beyond VC during ESD/EFT events |
| AEC-Q101 qualified option available | HE3 suffix variants meet automotive reliability standards for passenger compartment and chassis applications |
| RoHS-compliant (E3) | Meets JESD 201 Class 1A whisker resistance, supporting lead-free reflow and long-term solder joint integrity |
Applications
| Industrial Motor Drives | Automotive Body Control Module |
|---|---|
Use Scenario: Protection of 24 V DC input rails against inductive kickback from solenoid valves and relay coils. IC Role / Device Role / Timing Role: Shunt clamping device placed between VIN and GND, conducting only during >70.1 V transients. Use Value: Limits transient voltage to ≤113 V, preventing damage to MCU power supervisors and CAN transceivers rated for 36 V absolute max. | Use Scenario: Input protection for LIN bus transceivers and window lift motor drivers exposed to load dump pulses. IC Role / Device Role / Timing Role: Primary overvoltage clamp on battery-supplied 12 V lines, activated within 1 ns of surge onset. Use Value: Withstands 200 A surge (8.3 ms) per ISO 7637-2 Pulse 5a, maintaining functionality after repeated load dump events. |
| Telecom Power Supply Input | Consumer Appliance Mainboard |
Use Scenario: Secondary-side clamping on AC/DC adapter outputs subject to lightning-induced surges on PoE or DSL lines. IC Role / Device Role / Timing Role: Unidirectional TVS tied between +VOUT and GND, absorbing differential-mode transients before they reach DC-DC converters. Use Value: Clamps 1500 W surges while maintaining <1 µA leakage at 70.1 V, preserving no-load efficiency and standby power compliance. | Use Scenario: Surge suppression on microcontroller I/O lines connected to front-panel buttons and sensors in washing machines. IC Role / Device Role / Timing Role: Point-of-use protector mounted directly at connector entry, shunting ESD (IEC 61000-4-2 ±8 kV contact) to chassis ground. Use Value: Delivers 113 V clamping at 13.3 A, ensuring MCU GPIOs see <5 V transient overshoot during human-body-model discharge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ70A | DO-214AA package (smaller footprint), 70 V VWM, 1000 W PPPM, RθJA = 50 °C/W | Better suited for space-constrained PCBs but lower surge rating; requires tighter thermal layout | Select when board area is limited and peak surge energy does not exceed 1000 W |
| 1.5KE82A | Same 1.5KE package, identical VBR/VWM/VC specs, RoHS-compliant E3 variant without /51 tape-and-reel designation | No functional difference; /51 denotes 1400-unit reel packaging per ordering code | Direct form-fit-function replacement where reel size or traceability requirements differ |
Compared with 1N6293A-E3/51, SMBJ70A offers smaller size but reduced surge capability, while 1.5KE82A matches all electrical and mechanical specs - making it a seamless drop-in alternative when packaging format is flexible.
Availability
1N6293A-E3/51 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power supply inputs, and consumer appliance mainboards requiring stable component supply across multi-year production cycles.
Supply support for 1N6293A-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, MOSFETs, and protection devices with emphasis on high-reliability and automotive-grade performance.
The 1N6293A-E3/51 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust transient suppression in harsh environments - targeting applications where failure due to voltage surges must be eliminated, including automotive, industrial, and telecom infrastructure.
FAQ
What is the breakdown voltage range of the 1N6293A-E3/51?
The 1N6293A-E3/51 has a guaranteed breakdown voltage (VBR) range of 77.9 V to 86.1 V at a test current of 1 mA, measured per JEDEC standard. This tight tolerance ensures consistent clamping behavior across production lots and supports reliable overvoltage threshold design in 24 V and 48 V systems. The 1N6293A-E3/51 maintains this specification across its full operating temperature range of −55 °C to +175 °C.
How does the 1N6293A-E3/51 differ from bidirectional TVS diodes like 1N6293CA?
The 1N6293A-E3/51 is unidirectional and features a cathode band for polarity identification, allowing it to conduct only in reverse avalanche mode - ideal for DC rail protection. In contrast, 1N6293CA is bidirectional with no polarity marking and symmetrical clamping in both directions, suited for AC or differential signal lines. The 1N6293A-E3/51 exhibits lower leakage (<1 µA at 70.1 V) than its bidirectional counterpart under the same conditions.
What is the maximum clamping voltage of the 1N6293A-E3/51 during a 1500 W transient?
The 1N6293A-E3/51 clamps to a maximum of 113 V at 13.3 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured per Figure 7 in Vishay Document 88301 and represents the worst-case voltage seen by downstream components during full-rated surge events. The 1N6293A-E3/51 achieves this with sub-nanosecond response, minimizing overshoot before clamping engages.
Is the 1N6293A-E3/51 suitable for automotive applications?
Yes - the 1N6293A-E3/51 meets commercial-grade specifications and is compatible with AEC-Q101-qualified variants (e.g., 1N6293AHE3_B). It supports automotive use cases including body control modules and motor drivers, with validated operation from −40 °C to +125 °C ambient and junction temperatures up to +175 °C. Its 200 A IFSM rating satisfies ISO 7637-2 Pulse 5a load dump requirements when properly mounted.
What package type and lead finish does the 1N6293A-E3/51 use?
The 1N6293A-E3/51 uses the JEDEC DO-201AD (Case Style 1.5KE) axial-leaded package with matte tin-plated leads that comply with J-STD-002 and JESD 22-B102 solderability standards. The E3 suffix confirms RoHS compliance and JESD 201 Class 1A whisker resistance. Its dimensions are 1.0 inch (25.4 mm) minimum body length and 0.375 inch (9.5 mm) lead length, optimized for through-hole mounting and manual or wave soldering.
1N6293A-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):
- 70.1V
- Voltage - Breakdown (Min):
- 77.9V
- Voltage - Clamping (Max) @ Ipp:
- 113V
- Current - Peak Pulse (10/1000µs):
- 13.3A
- 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
1N6293A-E3/51 FAQ
1.How can I place an order for 1N6293A-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6293A-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 1N6293A-E3/51 reliable?
The price and inventory of 1N6293A-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 1N6293A-E3/51 is usually 5 days.
3.What payment methods are accepted for 1N6293A-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6293A-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6293A-E3/51?
1N6293A-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6293A-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 1N6293A-E3/51?
For technical support, including 1N6293A-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6293A-E3/51 requirements.
6.How does Aetrix verify that 1N6293A-E3/51 is sourced from the original manufacturer or authorized distributors?
All 1N6293A-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 1N6293A-E3/51 meets industry standards.
7.What is the process for return or replacement of 1N6293A-E3/51?
All 1N6293A-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6293A-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 1N6293A-E3/51 part is unused and in its original packaging.
Return procedure for 1N6293A-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6293A-E3/51 Tags
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