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Vishay General Semiconductor - Diodes Division 1N6285HE3/73
- Part No.:
- 1N6285HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6285HE3/73.pdf
- Description:
- TVS DIODE 31.6VWM 56.4VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:3,756
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Product details
Overview
1N6285HE3/73 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 39 V breakdown voltage (VBR = 37.1–41.0 V at 1.0 mA), 33.3 V stand-off voltage (VWM), 53.9 V clamping voltage (VC) at 27.8 A peak pulse current, 1500 W peak pulse power (10/1000 µs), and operates from –55 °C to +175 °C - deployed in automotive power supply inputs and industrial sensor interface protection.
For engineers reviewing the 1N6285HE3/73 datasheet, 1N6285HE3/73 pinout, 1N6285HE3/73 application, or 1N6285HE3/73 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJL = 15.4 °C/W), JEDEC 1.5KE package dimensions, and real-world clamping behavior under lightning-surge and inductive-switching transients.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction to achieve sub-nanosecond response time (<1 ns) and low incremental surge resistance. Its clamping action begins at VBR ≥37.1 V and limits transient energy to ≤53.9 V at 27.8 A, enabling robust protection of downstream MOSFETs and ICs without crowbar triggering.
Rated for 1500 W peak pulse power with 10/1000 µs waveform and 0.01% duty cycle, it sustains 200 A non-repetitive forward surge (8.3 ms half-sine) and exhibits 3.5 V max forward voltage at 100 A - confirming suitability for high-energy DC bus protection where fast, deterministic clamping is required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 37.1 V / 41.0 V at 1.0 mA - defines precise voltage threshold at which clamping initiates under controlled test conditions |
| VWM | 33.3 V - maximum continuous reverse working voltage; ensures no conduction during normal 33 V rail operation |
| VC @ IPPM | 53.9 V at 27.8 A - peak clamped voltage during 1500 W transient; determines maximum stress on protected circuitry |
| PPPM | 1500 W (10/1000 µs) - peak surge handling capacity; validates immunity to IEC 61000-4-5 Level 4 surges |
| TJ range | –55 °C to +175 °C - extended junction temperature rating supports under-hood automotive and industrial ambient environments |
| RθJL | 15.4 °C/W - low junction-to-lead thermal resistance enables effective heat dissipation into PCB copper without heatsink |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including HTOL, TCT, and ESD testing per AEC standard |
Pinout & Package
1N6285HE3/73 is housed in the industry-standard axial-lead DO-201AD (Case Style 1.5KE) package: molded epoxy body with matte tin-plated leads, 0.375" (9.5 mm) lead length, RoHS-compliant and JESD 201 Class 2 whisker-tested (HE3 suffix). Cathode identified by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connects to lower-potential side of protected line; enables bidirectional surge shunting only when used in complementary pairs |
| Cathode (banded end) | Clamping reference node | Connected to higher-potential rail (e.g., +33 V); defines polarity-sensitive clamping path to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance (±5%) and long-term parameter stability under thermal cycling |
| 1500 W peak pulse power | Supports single-event surge immunity up to IEC 61000-4-5 4 kV open-circuit / 2 kA short-circuit test levels |
| AEC-Q101 qualification | Validates reliability for automotive powertrain and body electronics applications requiring zero field failures |
| Low RθJL = 15.4 °C/W | Permits >6 W steady-state dissipation with minimal board copper area - reduces need for thermal relief cuts |
| Sub-ns response time | Clamps transients before sensitive ICs experience overvoltage stress - critical for protecting CAN/LIN transceivers |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: 12 V battery-fed ECUs exposed to load-dump transients up to 35 V and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Primary clamping device placed between battery rail and input filter capacitor; conducts only during overvoltage events. Use Value: Limits voltage seen by upstream LDOs and microcontrollers to ≤53.9 V, preventing latch-up and gate oxide damage. | Use Scenario: 24 V analog sensor outputs routed across noisy factory floors with motor drive coupling. IC Role / Device Role / Timing Role: Unidirectional shunt protector on signal line referenced to local ground; absorbs coupled spikes <100 ns after onset. Use Value: Maintains signal integrity below 33.3 V operating window while clamping 1 kV/µs transients to safe levels for ADC front-ends. |
| Telecom DC Power Feeds | Consumer Device USB Port Protection |
Use Scenario: Central office power supplies delivering –48 V DC to remote DSLAM cards via long cable runs. IC Role / Device Role / Timing Role: Reverse-biased TVS on negative rail; clamps positive-going surges induced by lightning or switching noise. Use Value: Withstands 1500 W surges without degradation, preserving uptime in carrier-grade infrastructure equipment. | Use Scenario: USB 2.0 data lines and VBUS in portable speakers subjected to ESD events during handling. IC Role / Device Role / Timing Role: Secondary-level protector downstream of integrated ESD arrays; handles high-energy secondary surges. Use Value: Provides 200 A surge current capability (8.3 ms) beyond typical ESD diodes, preventing catastrophic failure during accidental hot-plug events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A-E3/52 | Lower PPPM (600 W), smaller SMB package (3.5 × 4.5 mm), VC = 58.1 V at 10.3 A | Better suited for space-constrained PCBs; insufficient for 1500 W IEC 61000-4-5 compliance | Select when board area is critical and surge threat level is limited to IEC 61000-4-2 ESD or low-energy transients |
| 1.5KE39AHE3_A | Same electrical specs and 1.5KE package, but AEC-Q101 qualified to revision A (vs. B for 1N6285HE3/73) | No functional difference; differs only in qualification revision and traceability documentation | Acceptable for legacy designs requiring revision A certification; newer designs should specify HE3_B suffix |
Compared with SMBJ36A-E3/52 and 1.5KE39AHE3_A, the 1N6285HE3/73 delivers full 1500 W surge margin in the proven 1.5KE form factor with latest AEC-Q101 revision B qualification - making it optimal for new automotive and industrial designs demanding highest reliability and standardized test coverage.
Availability
1N6285HE3/73 is available at Aetrix Electronics and suitable for automotive power modules, industrial PLC I/O terminals, telecom DC distribution units, and consumer appliance mainboard protection requiring stable component supply and long-term lifecycle support.
Supply support for 1N6285HE3/73 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, TVS devices, and optoelectronics with emphasis on reliability, power handling, and automotive qualification.
The 1N6285HE3/73 belongs to Vishay's TRANSZORB® 1.5KE family - engineered specifically for high-energy transient suppression in harsh environments where consistent clamping performance and AEC-Q101 validation are mandatory.
FAQ
What is the breakdown voltage tolerance for 1N6285HE3/73?
The 1N6285HE3/73 has a specified breakdown voltage range of 37.1 V to 41.0 V at 1.0 mA test current, representing a ±5% tolerance around the nominal 39 V rating. This tight tolerance ensures predictable clamping onset across production lots and temperature extremes from –55 °C to +175 °C, critical for maintaining protection margins in safety-critical systems.
Is 1N6285HE3/73 suitable for bidirectional transient protection?
No, the 1N6285HE3/73 is a unidirectional TVS diode and must be used with correct polarity - cathode connected to the higher-potential rail. For bidirectional protection, Vishay offers the 1N6285CA variant (not 1N6285HE3/73). Using 1N6285HE3/73 in reverse bias beyond its 33.3 V stand-off voltage will cause conduction and potential failure.
Does 1N6285HE3/73 meet AEC-Q101 requirements?
Yes, the 1N6285HE3/73 is explicitly AEC-Q101 qualified per Vishay Document Number 88301, Revision 09-Aug-2022. The HE3 suffix denotes RoHS compliance and AEC-Q101 qualification (revision B), covering stress tests including high-temperature operating life, temperature cycling, and ESD robustness required for automotive under-hood applications.
What is the maximum clamping voltage of 1N6285HE3/73 during a surge event?
The maximum clamping voltage (VC) of the 1N6285HE3/73 is 53.9 V at 27.8 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value represents the upper limit of voltage imposed on protected circuitry during worst-case surge conditions and is confirmed in the Electrical Characteristics table of the official Vishay datasheet.
Can 1N6285HE3/73 replace older 1N6285A parts in existing designs?
Yes, the 1N6285HE3/73 is a direct replacement for legacy 1N6285A parts, retaining identical electrical specifications, 1.5KE package dimensions, and pinout. The HE3 suffix adds RoHS compliance, JESD 201 Class 2 whisker resistance, and AEC-Q101 qualification - enhancing reliability without requiring PCB or schematic changes.
1N6285HE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 31.6V
- Voltage - Breakdown (Min):
- 35.1V
- Voltage - Clamping (Max) @ Ipp:
- 56.4V
- Current - Peak Pulse (10/1000µs):
- 26.6A
- 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
1N6285HE3/73 FAQ
1.How can I place an order for 1N6285HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6285HE3/73 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 1N6285HE3/73 reliable?
The price and inventory of 1N6285HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6285HE3/73 is usually 5 days.
3.What payment methods are accepted for 1N6285HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6285HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6285HE3/73?
1N6285HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6285HE3/73 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 1N6285HE3/73?
For technical support, including 1N6285HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6285HE3/73 requirements.
6.How does Aetrix verify that 1N6285HE3/73 is sourced from the original manufacturer or authorized distributors?
All 1N6285HE3/73 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 1N6285HE3/73 meets industry standards.
7.What is the process for return or replacement of 1N6285HE3/73?
All 1N6285HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6285HE3/73, 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 1N6285HE3/73 part is unused and in its original packaging.
Return procedure for 1N6285HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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