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Vishay General Semiconductor - Diodes Division 1N6294AHE3_B/C
- Part No.:
- 1N6294AHE3_B/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6294AHE3_B/C.pdf
- Description:
- 1.5KW,91V 5%,UNIDIR,AXIAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,727
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Product details
Overview
1N6294AHE3_B/C from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 91 V breakdown voltage (VBR = 86.5–95.5 V at IT = 1.0 mA), 125 V maximum clamping voltage (VC) at 12.0 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - deployed to safeguard MOSFETs, ICs, and sensor interfaces against lightning-induced surges and inductive switching transients in industrial and automotive systems.
For engineers reviewing the 1N6294AHE3_B/C datasheet, 1N6294AHE3_B/C pinout, 1N6294AHE3_B/C application, or 1N6294AHE3_B/C equivalent, this part delivers verified AEC-Q101 qualification (HE3 suffix), RoHS-compliant matte tin-plated leads, 175 °C max junction temperature, and UL 94 V-0 molded epoxy package - critical for high-reliability board-level surge protection where clamping response time (<1 ns), low incremental surge resistance, and stable thermal derating are design-critical.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: when transient voltage exceeds its breakdown threshold (86.5–95.5 V), it avalanches rapidly to clamp the line at ≤125 V while diverting up to 12.0 A (10/1000 µs). Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<1.0 µA at 77.8 V stand-off).
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15.4 °C/W, enabling reliable operation up to 175 °C junction temperature. The device supports soldering per J-STD-002/JESD 22-B102 and meets JESD 201 Class 2 whisker resistance (HE3 suffix), confirming suitability for automotive-grade reflow and long-term field reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 86.5 V / 95.5 V at 1.0 mA - defines precise clamping onset threshold with ±5% tolerance for predictable overvoltage trip point |
| VWM | 77.8 V - maximum continuous working voltage; ensures no conduction during normal operation |
| VC @ IPPM | 125 V at 12.0 A - clamping voltage under full 1500 W surge; limits downstream component stress |
| PPPM | 1500 W (10/1000 µs) - peak surge handling capacity for lightning and ESD-like transients |
| IFSM | 200 A (8.3 ms half-sine) - surge current capability for short-duration inductive kick events |
| TJ max | 175 °C - enables operation in under-hood automotive or high-ambient industrial environments |
| Package | Case Style 1.5KE - axial-lead DO-201AD package with 0.375" lead length; UL 94 V-0 compliant epoxy body |
Pinout & Package
1N6294AHE3_B/C uses a 2-terminal axial-leaded DO-201AD (Case Style 1.5KE) package. The cathode is marked by a color band on the body; polarity must be observed in series connection with protected circuitry.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during reverse-biased clamping | Connected to protected line; conducts surge current to ground when VIN > VBR |
| Cathode | Current exit during clamping; marked with band | Connected to system ground or low-impedance return path; establishes unidirectional avalanche direction |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over temperature and lifetime; eliminates surface degradation under repeated surges |
| AEC-Q101 qualified (HE3) | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| 1500 W peak pulse power | Handles IEC 61000-4-5 Level 4 (4 kV) surge events without degradation when properly mounted |
| Clamping response <1 ns | Protects fast-edge logic and analog circuits before transient energy couples into sensitive nodes |
| UL 94 V-0 epoxy case | Prevents flame propagation in fault conditions - required for industrial safety certifications |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V supply rails in vehicle ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between rail and chassis ground; clamps spikes within nanoseconds. Use Value: Limits rail voltage to ≤125 V during 100 V/100 ms load dump events, preventing damage to microcontrollers and CAN transceivers. |
Use Scenario: Shielding digital input modules in programmable logic controllers from field-wiring induced surges. IC Role / Device Role / Timing Role: Line-side TVS on discrete 24 V DC inputs; absorbs inductive kickback from solenoid/relay coils. Use Value: Maintains signal integrity by clamping transients before they reach optocoupler inputs or FPGA I/O banks. |
| Telecom Power Feeds | Consumer Appliance Motor Control |
Use Scenario: Safeguarding PoE-powered equipment front-ends against lightning-induced surges on Ethernet cables. IC Role / Device Role / Timing Role: Primary-stage TVS on DC input side of PoE PD interface; coordinates with secondary protection. Use Value: Withstands 1500 W surges while maintaining <1.0 µA leakage at 77.8 V, minimizing standby power loss. |
Use Scenario: Protecting MCU GPIOs and gate drivers in washing machine motor inverters from back-EMF spikes. IC Role / Device Role / Timing Role: Localized TVS across H-bridge high-side FET source-drain; suppresses commutation spikes. Use Value: Prevents false triggering and latch-up in 3.3 V logic by limiting coupled noise to <125 V at 12 A peak. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ90A | DO-214AA package (SMB), 90 V VBR, 1000 W PPPM, lower IPPM (10.1 A) | Surface-mount only; unsuitable for through-hole designs or high-thermal-mass PCBs | Select when board space is constrained and thermal management via copper pour is feasible |
| 1N6294A-E3/54 | Same electrical specs, but commercial-grade (non-AEC-Q101), E3 suffix only (JESD 201 Class 1A whisker test) | Lacks automotive qualification; not approved for under-hood or safety-critical modules | Choose for cost-sensitive consumer or industrial applications where AEC-Q101 is not mandated |
Compared with 1N6294AHE3_B/C, SMBJ90A offers smaller footprint but reduced surge capacity and no automotive qualification, while 1N6294A-E3/54 matches performance but lacks AEC-Q101 validation - making 1N6294AHE3_B/C the sole option for thermally demanding, automotive-grade unidirectional TVS protection in DO-201AD form factor.
Availability
1N6294AHE3_B/C is available at Aetrix Electronics and suitable for automotive power distribution, industrial PLC I/O protection, telecom power feeds, and consumer appliance motor control requiring stable component supply, AEC-Q101 compliance, and repeatable 1500 W surge handling.
Supply support for 1N6294AHE3_B/C 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, efficiency, and application-specific optimization.
The 1N6294AHE3_B/C belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure resilience is non-negotiable.
FAQ
What is the breakdown voltage range of the 1N6294AHE3_B/C?
The 1N6294AHE3_B/C has a specified breakdown voltage (VBR) range of 86.5 V to 95.5 V at a test current of 1.0 mA. This ±5% tolerance ensures consistent clamping behavior across production lots and supports reliable overvoltage trip-point design in 77.8 V nominal systems. The value is measured per JEDEC standards and confirmed in Vishay's 88301 datasheet.
Is the 1N6294AHE3_B/C qualified for automotive use?
Yes, the 1N6294AHE3_B/C is AEC-Q101 qualified, as indicated by the "HE3" suffix. This certification covers stress testing for temperature cycling, humidity, mechanical shock, and surge endurance - validating its suitability for automotive powertrain, body control, and ADAS applications. The qualification applies specifically to the HE3_B/C variant per Vishay documentation.
What is the maximum clamping voltage of the 1N6294AHE3_B/C under surge conditions?
The 1N6294AHE3_B/C exhibits a maximum clamping voltage (VC) of 125 V at 12.0 A peak pulse current (IPPM) using the standard 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during a full-rated 1500 W transient event and is critical for ensuring downstream components remain within safe operating area.
Does the 1N6294AHE3_B/C have a bidirectional version?
No - the 1N6294AHE3_B/C is strictly unidirectional. Bidirectional variants in the same voltage class use the "CA" suffix (e.g., 1N6294CA), but those are distinct part numbers with different marking, polarity, and application scope. The "A" suffix in 1N6294AHE3_B/C explicitly denotes unidirectional configuration with cathode band marking.
What package type does the 1N6294AHE3_B/C use, and what are its key mechanical properties?
The 1N6294AHE3_B/C uses the DO-201AD (Case Style 1.5KE) axial-leaded package: molded epoxy body meeting UL 94 V-0 flammability rating, 0.375" (9.5 mm) lead length, and matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Its RθJL = 15.4 °C/W supports effective heat transfer to PCB copper or heatsinks.
1N6294AHE3_B/C 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):
- 77.8V
- Voltage - Breakdown (Min):
- 86.5V
- Voltage - Clamping (Max) @ Ipp:
- 125V
- Current - Peak Pulse (10/1000µs):
- 12A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1N6294AHE3_B/C FAQ
1.How can I place an order for 1N6294AHE3_B/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6294AHE3_B/C 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 1N6294AHE3_B/C reliable?
The price and inventory of 1N6294AHE3_B/C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6294AHE3_B/C is usually 5 days.
3.What payment methods are accepted for 1N6294AHE3_B/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6294AHE3_B/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6294AHE3_B/C?
1N6294AHE3_B/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6294AHE3_B/C 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 1N6294AHE3_B/C?
For technical support, including 1N6294AHE3_B/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6294AHE3_B/C requirements.
6.How does Aetrix verify that 1N6294AHE3_B/C is sourced from the original manufacturer or authorized distributors?
All 1N6294AHE3_B/C 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 1N6294AHE3_B/C meets industry standards.
7.What is the process for return or replacement of 1N6294AHE3_B/C?
All 1N6294AHE3_B/C units undergo pre-shipment inspection (PSI). If there is an issue with 1N6294AHE3_B/C, 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 1N6294AHE3_B/C part is unused and in its original packaging.
Return procedure for 1N6294AHE3_B/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6294AHE3_B/C Tags
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