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Vishay General Semiconductor - Diodes Division 1N6297AHE3/51
- Part No.:
- 1N6297AHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6297AHE3/51.pdf
- Description:
- TVS DIODE 102VWM 165VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:3,081
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Product details
Overview
1N6297AHE3/51 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 120 V breakdown voltage (VBR = 114–126 V at IT = 1.0 mA), 102 V maximum working peak reverse voltage (VWM), 165 V clamping voltage (VC) at 9.1 A peak pulse current, and 1500 W peak pulse power dissipation with a 10/1000 µs waveform - deployed in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the 1N6297AHE3/51 datasheet, 1N6297AHE3/51 pinout, 1N6297AHE3/51 application, or 1N6297AHE3/51 equivalent, this part serves as a RoHS-compliant, AEC-Q101-qualified uni-directional TVS for high-energy transient suppression where fast response (<1 ns), low clamping ratio (VC/VWM ≈ 1.62), and robust surge handling (IFSM = 200 A) are required.
Technical Context
This device operates as a silicon avalanche diode with glass-passivated junction, optimized for non-repetitive transient suppression under standardized 10/1000 µs surge conditions. Its unidirectional polarity uses a cathode band marking and exhibits a typical thermal resistance of 15.4 °C/W (junction-to-lead) and 75 °C/W (junction-to-ambient).
The 1N6297AHE3/51 delivers stable clamping performance across -55 °C to +175 °C operating junction temperature, with a temperature coefficient of VBR at +0.107 %/°C - enabling predictable voltage threshold behavior in thermally demanding environments such as engine control units and motor drive power stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 114 V / 126 V at 1.0 mA test current - defines precise avalanche onset range for reliable triggering |
| VWM | 102 V maximum - ensures no conduction during normal 12 V or 24 V system operation with margin |
| VC @ IPPM | 165 V at 9.1 A - limits protected circuit voltage during worst-case 1500 W transient |
| PPPM | 1500 W - sustains single 10/1000 µs surges per JEDEC standards without degradation |
| IFSM | 200 A peak forward surge - withstands 8.3 ms half-sine inrush events like load dump |
| Junction Temp Range | -55 °C to +175 °C - supports under-hood automotive and industrial ambient extremes |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package with matte tin-plated leads |
Pinout & Package
1N6297AHE3/51 uses the standard DO-201AD (Case Style 1.5KE) axial-leaded package: cylindrical epoxy body, 0.375" (9.5 mm) lead length, 0.210" (5.3 mm) body diameter. Cathode identified by color band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side of protected line; enables load-dump surge path |
| Cathode | Current exit point during reverse-biased clamping | Marked with band; tied to higher-potential rail (e.g., VIN) to shunt transients to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche characteristics and long-term reliability under thermal cycling |
| AEC-Q101 qualification | Validated for automotive-grade stress testing including HTOL, temperature cycling, and ESD |
| 1500 W peak pulse rating | Meets ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 surge immunity requirements |
| Ultra-fast response time | <1 ns clamping activation - protects downstream ICs before voltage overshoot damages gate oxides |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker resistance and UL 94 V-0 flammability for safety-critical systems |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
|
Use Scenario: Protecting engine control unit (ECU) 12 V input against ISO 7637-2 load dump transients up to 60 V for 400 ms. IC Role / Device Role / Timing Role: Primary clamping device placed directly at connector entry point to divert surge energy before reaching LDOs and microcontrollers. Use Value: Clamps peak voltage to ≤165 V while sustaining 1500 W for 1 ms - preventing latch-up or permanent damage to 36 V-rated power management ICs. |
Use Scenario: Shielding 4–20 mA analog sensor outputs in factory automation PLC modules from EFT and surge coupling. IC Role / Device Role / Timing Role: Uni-directional TVS connected between signal line and ground, triggered only during positive-going transients on active-high lines. Use Value: Low leakage (<1 µA at 102 V) avoids signal offset; fast <1 ns response preserves integrity of 1 kHz bandwidth sensor signals. |
| Telecom DC Power Feeding | Consumer Appliance Motor Drive Supply |
|
Use Scenario: Safeguarding PoE-powered remote radio units receiving 48 V DC over long outdoor cables susceptible to lightning-induced surges. IC Role / Device Role / Timing Role: First-stage protector on DC input rail upstream of DC/DC converters and Ethernet PHYs. Use Value: Withstands repetitive 10/1000 µs surges up to 1500 W at 0.01% duty cycle - maintaining uptime in exposed telecom infrastructure. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machine main control boards. IC Role / Device Role / Timing Role: Mounted across motor terminals or power supply input to clamp inductive kickback during MOSFET switching. Use Value: 200 A IFSM rating handles repeated 8.3 ms half-sine surges from motor turn-off - extending board lifetime beyond 10,000 cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ120A | Lower PPPM (400 W), smaller SMA package (SMD), VBR = 133–147 V | Not suitable for load dump; limited to board-level ESD/EFT on low-power signal lines | Select when space-constrained PCB layout requires SMD and surge energy is ≤400 W |
| 1.5KE120A | Same electrical specs and DO-201AD package; differs only in packaging suffix (E3 vs HE3) - lacks AEC-Q101 qualification | Acceptable for commercial/industrial use but not automotive qualified designs | Choose 1N6297AHE3/51 when AEC-Q101 compliance and JESD 201 Class 2 whisker resistance are mandatory |
Compared with SMAJ120A and 1.5KE120A, the 1N6297AHE3/51 uniquely combines full AEC-Q101 qualification, 1500 W surge capability, and DO-201AD mechanical robustness - making it the only option among the three validated for under-hood automotive deployment with zero derating at 125 °C ambient.
Availability
1N6297AHE3/51 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom power feeding requiring stable component supply, traceable lot history, and long-term lifecycle support.
Supply support for 1N6297AHE3/51 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, and protection devices with emphasis on reliability, automotive qualification, and high-power handling.
The 1N6297AHE3/51 belongs to Vishay's TRANSZORB® TVS family - engineered specifically for high-energy transient suppression in harsh-environment applications including automotive, industrial, and telecom infrastructure.
FAQ
What is the clamping voltage of the 1N6297AHE3/51 and how is it measured?
The 1N6297AHE3/51 has a maximum clamping voltage (VC) of 165 V, measured at a peak pulse current (IPPM) of 9.1 A using a standardized 10/1000 µs double-exponential waveform. This value reflects the actual voltage seen by downstream components during surge events and is guaranteed across the full operating temperature range of -55 °C to +175 °C. The 1N6297AHE3/51 maintains consistent clamping performance due to its glass-passivated junction and low incremental surge resistance.
Is the 1N6297AHE3/51 suitable for automotive applications?
Yes, the 1N6297AHE3/51 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its 175 °C maximum junction temperature, 200 A IFSM rating for load dump survival, and JESD 201 Class 2 whisker resistance make it appropriate for ECU power inputs, body control modules, and ADAS sensor supplies. The HE3 suffix confirms compliance with automotive reliability and material requirements per Vishay's documentation.
How does the 1N6297AHE3/51 differ from the 1.5KE120A variant?
The 1N6297AHE3/51 and 1.5KE120A share identical electrical specifications (VBR, VWM, VC, PPPM) and DO-201AD package, but differ in qualification and plating. The 1N6297AHE3/51 carries the HE3 suffix indicating AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, whereas 1.5KE120A (E3 suffix) is commercial-grade only. Both are functionally interchangeable electrically, but only the 1N6297AHE3/51 meets automotive production requirements.
What is the meaning of the "HE3/51" suffix in 1N6297AHE3/51?
The "HE3" portion denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance; "/51" indicates packaging in 13" paper tape and reel with a base quantity of 1400 units. This ordering code ensures traceability, automotive-grade reliability, and compatibility with automated SMT placement equipment despite the axial-leaded DO-201AD form factor.
Can the 1N6297AHE3/51 be used in bi-directional configurations?
No, the 1N6297AHE3/51 is strictly a uni-directional TVS diode, as indicated by the "A" suffix and absence of "CA" in its designation. It conducts only in reverse breakdown and must be oriented with the cathode band toward the higher-potential rail. For bi-directional protection (e.g., AC lines or differential pairs), Vishay specifies variants like 1N6297CAHE3/51 - which are separate, distinct parts with different VBR and clamping characteristics.
1N6297AHE3/51 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):
- 102V
- Voltage - Breakdown (Min):
- 114V
- Voltage - Clamping (Max) @ Ipp:
- 165V
- Current - Peak Pulse (10/1000µs):
- 9.1A
- 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
1N6297AHE3/51 FAQ
1.How can I place an order for 1N6297AHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6297AHE3/51 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 1N6297AHE3/51 reliable?
The price and inventory of 1N6297AHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6297AHE3/51 is usually 5 days.
3.What payment methods are accepted for 1N6297AHE3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6297AHE3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6297AHE3/51?
1N6297AHE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6297AHE3/51 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 1N6297AHE3/51?
For technical support, including 1N6297AHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6297AHE3/51 requirements.
6.How does Aetrix verify that 1N6297AHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1N6297AHE3/51 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 1N6297AHE3/51 meets industry standards.
7.What is the process for return or replacement of 1N6297AHE3/51?
All 1N6297AHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6297AHE3/51, 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 1N6297AHE3/51 part is unused and in its original packaging.
Return procedure for 1N6297AHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6297AHE3/51 Tags
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