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Vishay General Semiconductor - Diodes Division 1N6285HE3/54
- Part No.:
- 1N6285HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6285HE3/54.pdf
- Description:
- TVS DIODE 31.6VWM 56.4VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:6,713
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Product details
Overview
1N6285HE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in the 1.5KE family, designed for primary-side overvoltage protection of 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 standoff voltage (VWM), 53.9 V clamping voltage (VC) at 27.8 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the 1N6285HE3/54 datasheet, 1N6285HE3/54 pinout, 1N6285HE3/54 application, or 1N6285HE3/54 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), JEDEC 1.5KE package dimensions, and real-world clamping behavior under transient surge conditions.
Technical Context
The 1N6285HE3/54 operates as a silicon avalanche diode with glass-passivated junction, delivering bidirectional-capable clamping action only when configured in back-to-back pairs - its native configuration is unidirectional, with cathode marked by a color band. It responds in <1 ns to transients and maintains low incremental surge resistance to limit voltage overshoot during 8.3 ms half-sine surges up to 200 A (IFSM).
Its thermal design relies on lead-to-ambient conduction (RθJL = 15.4 °C/W) and supports operation from –55 °C to +175 °C junction temperature. The device meets JESD 201 Class 2 whisker resistance and RoHS compliance per E3/HE3 suffix designation, with matte tin-plated leads solderable per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 37.1 V / 41.0 V at 1.0 mA - defines precise avalanche onset window for reliable triggering without premature conduction |
| VWM | 33.3 V - maximum continuous reverse working voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 53.9 V at 27.8 A (10/1000 µs) - clamped voltage seen by protected IC during worst-case surge |
| PPPM | 1500 W - peak transient energy absorption capability without failure under standardized surge waveform |
| IFSM | 200 A (8.3 ms half-sine) - surge current handling for inductive switch-off events in automotive power circuits |
| TJ max | +175 °C - enables use in under-hood automotive modules and high-temperature industrial enclosures |
| RθJA | 75 °C/W - thermal resistance limiting self-heating during sustained 6.5 W power dissipation at TL = 75 °C |
Pinout & Package
Package: JEDEC-standard Case Style 1.5KE - molded epoxy body with axial leads, UL 94 V-0 rated, 0.375" (9.5 mm) lead length, 0.210" (5.3 mm) body diameter.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Connected to lower-potential side (e.g., ground or return path) during TVS operation |
| Cathode | Current exit point in forward bias; marked with color band | Connected to protected line (e.g., +12 V rail); conducts avalanche current to ground during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under humidity and thermal cycling |
| 1500 W peak pulse power (10/1000 µs) | Protects against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 4 surges without derating |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive powertrain and body electronics per stress test requirements |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes overvoltage stress on downstream MOSFETs and microcontrollers during clamping |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth in high-reliability automotive and industrial assemblies |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: 12 V battery feed to engine control unit exposed to load dump (ISO 16750-2) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp transients before they reach LDOs and MCU power pins. Use Value: Limits voltage to ≤53.9 V during 27.8 A surge, preventing gate oxide rupture in 36 V-rated power FETs and brownout in 5 V logic rails. | Use Scenario: 4–20 mA current loop interface in factory automation PLC analog input module. IC Role / Device Role / Timing Role: TVS connected across signal and return lines to suppress ESD (IEC 61000-4-2) and fast transients (IEC 61000-4-4) coupled onto field wiring. Use Value: Sub-1 ns response ensures clamping occurs before sensitive op-amp input stages saturate or latch up, preserving measurement integrity. |
| Telecom DC Power Feeds | Consumer Appliance Motor Driver Protection |
Use Scenario: -48 V DC power input to base station remote radio head exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-stage TVS on input rectifier output, coordinated with upstream MOV and downstream π-filter. Use Value: 1500 W rating handles multi-kA induced surges while maintaining VC below absolute maximum ratings of telecom-grade DC/DC converters. | Use Scenario: H-bridge gate driver supply rail in washing machine motor control board subjected to commutation spikes. IC Role / Device Role / Timing Role: TVS mounted directly at driver IC VDD pin to suppress inductive kickback from flyback diodes and PCB trace inductance. Use Value: Clamps 33.3 V nominal rail to 53.9 V within nanoseconds, avoiding overvoltage shutdown of integrated gate drivers and preserving PWM timing accuracy. |
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 (Vishay) | Lower PPPM (600 W), smaller SMB package (3.5 mm × 4.5 mm), VBR = 40–44.2 V, VC = 58.1 V @ 10.3 A | Better suited for space-constrained PCBs; insufficient for ISO 7637-2 Pulse 5a where 1N6285HE3/54's 1500 W is required | Select SMBJ36A-E3/52 only when board area is critical and surge threat level is limited to IEC 61000-4-5 Level 2 |
| 1.5KE39A-E3/54 (Vishay) | Same 1.5KE package and 1500 W rating, but commercial-grade (non-AEC-Q101), no HE3 whisker qualification, identical VBR/VC specs | Acceptable for non-automotive industrial or consumer use; lacks automotive qualification documentation and process controls | Choose 1.5KE39A-E3/54 for cost-sensitive non-automotive designs where AEC-Q101 is not mandated |
Compared with SMBJ36A-E3/52, the 1N6285HE3/54 delivers 2.5× higher surge power handling in the same functional voltage class; versus 1.5KE39A-E3/54, it adds AEC-Q101 qualification and JESD 201 Class 2 whisker resistance - essential for automotive production and long-lifecycle industrial deployments.
Availability
1N6285HE3/54 is available at Aetrix Electronics and suitable for automotive power systems, industrial sensor interfaces, telecom DC feeds, and appliance motor control requiring stable component supply across extended temperature ranges and high-reliability qualification.
Supply support for 1N6285HE3/54 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, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and automotive-grade qualification.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where robustness against load dump, ESD, and lightning-induced surges is mandatory.
FAQ
What is the breakdown voltage range of the 1N6285HE3/54?
The 1N6285HE3/54 has a guaranteed breakdown voltage (VBR) range of 37.1 V to 41.0 V at a test current of 1.0 mA, measured per JEDEC standard. This tight tolerance ensures consistent clamping onset across production lots and supports reliable coordination with downstream overvoltage protection thresholds in power management ICs.
Is the 1N6285HE3/54 qualified for automotive applications?
Yes, the 1N6285HE3/54 carries the HE3 suffix, indicating full AEC-Q101 qualification per Vishay's documentation. It has passed stress tests including high-temperature operating life, unbiased high-humidity storage, and temperature cycling - making it suitable for engine control units, body control modules, and ADAS power supplies.
What does the "/54" in 1N6285HE3/54 signify?
The "/54" denotes the preferred packaging option: 13-inch diameter paper tape and reel containing 1400 units, with a unit weight of 0.968 g. This format is optimized for automated SMT placement using standard 8 mm tape feeders and supports high-volume manufacturing without manual handling.
How does the clamping voltage of the 1N6285HE3/54 compare to its breakdown voltage?
The 1N6285HE3/54 clamps to 53.9 V at its rated peak pulse current of 27.8 A (10/1000 µs waveform), yielding a clamping ratio (VC/VBR) of approximately 1.42. This low ratio reflects efficient avalanche conduction and minimal voltage overshoot - critical for protecting 36 V-rated components without exceeding their absolute maximum ratings.
Can the 1N6285HE3/54 be used in bidirectional configurations?
No - the 1N6285HE3/54 is a unidirectional TVS diode, identified by its cathode band marking. Bidirectional operation requires either a dedicated CA-suffix part (e.g., 1.5KE39CA) or two 1N6285HE3/54 diodes connected in series opposition. Using a single 1N6285HE3/54 in reverse-biased mode risks permanent damage due to excessive reverse leakage and thermal runaway.
1N6285HE3/54 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:
- 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
1N6285HE3/54 FAQ
1.How can I place an order for 1N6285HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6285HE3/54 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 1N6285HE3/54 reliable?
The price and inventory of 1N6285HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6285HE3/54 is usually 5 days.
3.What payment methods are accepted for 1N6285HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6285HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6285HE3/54?
1N6285HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6285HE3/54 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 1N6285HE3/54?
For technical support, including 1N6285HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6285HE3/54 requirements.
6.How does Aetrix verify that 1N6285HE3/54 is sourced from the original manufacturer or authorized distributors?
All 1N6285HE3/54 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 1N6285HE3/54 meets industry standards.
7.What is the process for return or replacement of 1N6285HE3/54?
All 1N6285HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6285HE3/54, 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 1N6285HE3/54 part is unused and in its original packaging.
Return procedure for 1N6285HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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