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Vishay General Semiconductor - Diodes Division 1N6285-E3/73
- Part No.:
- 1N6285-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6285-E3/73.pdf
- Description:
- TVS DIODE 31.6VWM 56.4VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:3,345
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Product details
Overview
1N6285-E3/73 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 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 to safeguard MOSFETs, ICs, and sensor interfaces in industrial and automotive electronics.
For engineers reviewing the 1N6285-E3/73 datasheet, 1N6285-E3/73 pinout, 1N6285-E3/73 application, or 1N6285-E3/73 equivalent, this part delivers verified transient suppression performance with RoHS-compliant matte tin-plated leads, glass-passivated junction, and AEC-Q101 qualification availability (via HE3 suffix variants), supporting robust ESD and lightning surge protection design.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches rapidly (<1 ns response) to divert surge current away from downstream circuitry. Its 1500 W peak pulse power rating is defined under JEDEC-standard 10/1000 µs waveform with 0.01% duty cycle, and thermal resistance is specified at RθJA = 75 °C/W and RθJL = 15.4 °C/W.
The device exhibits low incremental surge resistance and excellent clamping ratio (VC/VBR ≈ 1.45), with maximum reverse leakage of 1.0 µA at VWM and forward voltage of 3.5 V at 100 A. It is rated for operating junction temperature from –55 °C to +175 °C and supports soldering per J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 37.1 V / 41.0 V at 1.0 mA - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| VWM | 33.3 V - maximum continuous reverse working voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 53.9 V at 27.8 A - clamped voltage during 1500 W transient, limiting stress on protected ICs |
| PPPM | 1500 W - peak pulse power handling with 10/1000 µs waveform, enabling lightning and inductive-switching surge absorption |
| IFSM | 200 A - non-repetitive forward surge current rating (8.3 ms half-sine), critical for unidirectional rail protection |
| TJ range | –55 °C to +175 °C - wide junction temperature operation suitable for under-hood automotive and industrial environments |
| Package | Case Style 1.5KE - axial-lead DO-201AD package with 0.375" lead length, UL 94 V-0 molded epoxy body |
Pinout & Package
1N6285-E3/73 uses the standard DO-201AD (Case Style 1.5KE) axial-leaded package. The cathode is marked by a color band on the body; polarity must be observed in series connection with DC rails.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional clamp configuration |
| Cathode | Avalanche clamping terminal | Connected to protected line (e.g., +12 V rail); color band identifies this end for correct PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable, repeatable avalanche characteristics and long-term reliability under repeated surge stress |
| 1500 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-ground) in properly designed front-end circuits |
| Clamping voltage ≤53.9 V at 27.8 A | Ensures protected 3.3 V/5 V logic or 36 V automotive microcontrollers remain below absolute maximum ratings during transients |
| RoHS-compliant matte tin plating | Guarantees solderability per J-STD-002 and eliminates whisker risk (JESD 201 Class 1A certified) |
| –55 °C to +175 °C operating range | Validates use in engine control units, power converters, and industrial PLC I/O modules without derating |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground, clamping within <1 ns to limit voltage overshoot. Use Value: Maintains rail voltage ≤53.9 V during 1500 W surges, preventing latch-up or gate oxide damage in MCU and CAN transceivers. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to ADC inputs in factory automation systems. IC Role / Device Role / Timing Role: Low-leakage (≤1.0 µA) TVS mounted at connector entry point to suppress ESD and cable-induced fast transients. Use Value: Preserves signal integrity with minimal loading (capacitance not specified but typical for DO-201AD is <100 pF), while clamping sub-100 ns events. |
| DC-DC Converter Input Stage | Telecom Line Card Surge Protection |
Use Scenario: Input-side protection for isolated 48 V telecom DC-DC modules exposed to lightning-induced surges on distribution lines. IC Role / Device Role / Timing Role: Primary clamping element upstream of input filter and controller IC, sized for repetitive 10/1000 µs threats. Use Value: Absorbs up to 1500 W pulses without degradation, enabling compliance with GR-1089-CORE Section 4.5.2.2 surge requirements. |
Use Scenario: Secondary protection on POTS or xDSL line interface cards where primary gas discharge tube (GDT) handles bulk energy. IC Role / Device Role / Timing Role: Fast-response secondary limiter that activates after GDT firing to clamp residual voltage to safe levels for SLIC and codec ICs. Use Value: Achieves <54 V clamping at full rated current, ensuring protected semiconductor devices stay within 60 V absolute maximum ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A | DO-214AA package, 36 V VWM, 58.1 V VC @ 25.4 A, 600 W PPPM | Lower power rating and surface-mount form factor - suited for space-constrained PCBs but requires layout redesign | Select SMBJ36A only when board real estate is limited and surge energy is ≤600 W; not drop-in for 1N6285-E3/73 due to package and power mismatch |
| 1.5KE39A | Same DO-201AD package, identical electrical specs (VBR, VWM, VC, PPPM), E3/73 suffix denotes same tape-and-reel packaging | No functional or mechanical difference - direct cross-reference per Vishay documentation (1N6285A ≡ 1.5KE39A) | 1.5KE39A is functionally identical and interchangeable with 1N6285-E3/73; choice depends on distributor stock and reel configuration preference |
Compared with SMBJ36A, 1N6285-E3/73 offers 2.5× higher surge power handling and axial-leaded through-hole mounting for high-reliability power stages; versus 1.5KE39A, it is electrically and mechanically identical - differing only in part numbering convention and reel packaging code.
Availability
1N6285-E3/73 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom DC-DC input stage surge suppression requiring stable component supply across multi-year production cycles.
Supply support for 1N6285-E3/73 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-grade qualification.
The 1N6285-E3/73 belongs to Vishay's TRANSZORB® family of high-power TVS diodes, engineered specifically for robust transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the breakdown voltage tolerance of the 1N6285-E3/73?
The 1N6285-E3/73 has a specified breakdown voltage range of 37.1 V to 41.0 V at 1.0 mA test current, yielding ±5.3% tolerance about the nominal 39 V rating. This tight VBR window ensures consistent clamping onset across production lots and enables predictable system-level overvoltage margining in designs using the 1N6285-E3/73.
Is the 1N6285-E3/73 RoHS compliant and lead-free?
Yes, the "E3" suffix in 1N6285-E3/73 explicitly denotes RoHS-compliant construction with matte tin-plated leads, meeting JEDEC J-STD-002 and JESD 22-B102 solderability standards. It also satisfies JESD 201 Class 1A whisker testing, confirming suitability for lead-free reflow and long-term reliability in commercial-grade applications.
Can the 1N6285-E3/73 be used in bidirectional configurations?
No - the 1N6285-E3/73 is a unidirectional TVS diode, identifiable by its cathode band marking. Bidirectional variants in the same family carry "CA" suffixes (e.g., 1.5KE39CA). Using 1N6285-E3/73 in AC or floating applications would result in forward conduction during negative half-cycles, causing failure; always verify polarity in schematic and layout for the 1N6285-E3/73.
What is the maximum clamping voltage of the 1N6285-E3/73 under surge conditions?
The 1N6285-E3/73 clamps to a maximum of 53.9 V when subjected to its rated peak pulse current of 27.8 A (10/1000 µs waveform). This value is measured per JEDEC standards and represents the worst-case voltage seen by downstream components during a full 1500 W transient event - a key parameter for validating safe operating area in circuits protected by the 1N6285-E3/73.
Does the 1N6285-E3/73 meet AEC-Q101 qualification?
The base 1N6285-E3/73 is commercial-grade; however, the AEC-Q101 qualified version is designated as 1N6285AHE3_B (or 1.5KE39AHE3_B), with "HE3" indicating automotive qualification and "B" denoting revision level. Engineers requiring automotive use must specify the HE3 variant - the 1N6285-E3/73 itself does not carry AEC-Q101 certification unless explicitly ordered with HE3 suffix.
1N6285-E3/73 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1N6285-E3/73 FAQ
1.How can I place an order for 1N6285-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6285-E3/73 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 1N6285-E3/73 reliable?
The price and inventory of 1N6285-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6285-E3/73 is usually 5 days.
3.What payment methods are accepted for 1N6285-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6285-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6285-E3/73?
1N6285-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6285-E3/73 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 1N6285-E3/73?
For technical support, including 1N6285-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6285-E3/73 requirements.
6.How does Aetrix verify that 1N6285-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1N6285-E3/73 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 1N6285-E3/73 meets industry standards.
7.What is the process for return or replacement of 1N6285-E3/73?
All 1N6285-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6285-E3/73, 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 1N6285-E3/73 part is unused and in its original packaging.
Return procedure for 1N6285-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6285-E3/73 Tags
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