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Vishay General Semiconductor - Diodes Division 1N6285AHE3_A/C
- Part No.:
- 1N6285AHE3_A/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6285AHE3_A/C.pdf
- Description:
- TVS DIODE 33.3VWM 53.9VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:4,654
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Product details
Overview
1N6285AHE3_A/C from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection of sensitive electronics. It features a 39 V breakdown voltage (VBR = 37.1–41.0 V at 1.0 mA), 1500 W peak pulse power (10/1000 µs), clamping voltage of 53.9 V at 27.8 A, and operates across –55 °C to +175 °C junction temperature. It is used in automotive power line surge suppression and industrial sensor interface protection.
For engineers reviewing the 1N6285AHE3_A/C datasheet, 1N6285AHE3_A/C pinout, 1N6285AHE3_A/C application, or 1N6285AHE3_A/C equivalent, this part delivers verified AEC-Q101 qualification (HE3 suffix), RoHS-compliant matte tin-plated leads, and UL 94 V-0 molded epoxy packaging - critical for automotive-grade reliability validation and PCB-level transient immunity design.
Technical Context
This TVS diode employs a glass passivated silicon junction optimized for fast response (<1 ns) and low incremental surge resistance. Its unidirectional polarity uses a cathode band marking and exhibits 3.5 V forward voltage at 100 A, with thermal resistance RθJL = 15.4 °C/W enabling robust surge energy dissipation into PCB copper.
The device conforms to JEDEC 1.5KE case style with standardized lead geometry and meets JESD 201 Class 2 whisker resistance. It is rated for non-repetitive 8.3 ms half-sine surge current up to 200 A and supports repetitive 10/1000 µs transients at 0.01% duty cycle without degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 37.1 V / 41.0 V at 1.0 mA - defines precise clamping onset threshold for circuit-level overvoltage trip point |
| VWM | 33.3 V - maximum continuous reverse working voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 53.9 V at 27.8 A - actual clamped voltage during 1500 W transient, determining protected IC's voltage stress margin |
| PPPM | 1500 W (10/1000 µs) - peak surge handling capacity for lightning or inductive switch-off events |
| IFSM | 200 A (8.3 ms half-sine) - single-event surge current rating defining fuse coordination and PCB trace sizing |
| TJ range | –55 °C to +175 °C - enables operation in under-hood automotive and industrial motor drive environments |
| Package | Case Style 1.5KE - industry-standard axial-leaded TO-204AA package with 0.375" lead length for through-hole mounting |
Pinout & Package
Package: Case Style 1.5KE (TO-204AA), molded epoxy body with matte tin-plated axial leads; UL 94 V-0 compliant; 0.375" (9.5 mm) lead length; 0.042" (1.07 mm) lead diameter.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path); conducts during forward surge or bias conditions |
| Cathode (marked with band) | Reverse-biased clamping terminal | Connected to protected line (e.g., 24 V rail); initiates avalanche breakdown when VIN exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance (±5%) and long-term reliability under thermal cycling and humidity |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control modules and body electronics per stress test requirements |
| 1500 W peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity without external series impedance |
| Clamping ratio VC/VBR ≈ 1.42 | Minimizes voltage overshoot on protected lines, reducing risk of latch-up or gate oxide damage in downstream MOSFETs |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth in high-reliability assemblies operating >10 years at elevated temperature |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: 12 V/24 V battery feed lines exposed to load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role: Primary shunt clamp placed between supply rail and chassis ground to divert surge current away from PMICs and microcontrollers. Use Value: Clamps 1500 W surges to ≤53.9 V, maintaining safe operating voltage for 3.3 V/5 V logic and CAN transceivers downstream. |
Use Scenario: 4–20 mA current loop inputs in PLC analog input modules subjected to field wiring ESD and inductive kickback. IC Role / Device Role: Bidirectional protection not applicable; unidirectional 1N6285AHE3_A/C placed across loop supply to suppress negative-going transients. Use Value: Limits reverse voltage to <33.3 V stand-off while clamping positive surges to 53.9 V, preserving ADC front-end integrity. |
| Telecom DC Power Feeds | Consumer Appliance Motor Control |
Use Scenario: -48 V DC telecom power distribution boards encountering lightning-induced surges on outdoor cable runs. IC Role / Device Role: Unidirectional TVS mounted on board edge, cathode to -48 V rail, anode to ground, absorbing common-mode transients. Use Value: Withstands 200 A 8.3 ms surges and maintains <1 µA leakage at -33.3 V, ensuring low standby power in always-on systems. |
Use Scenario: Brushed DC motor driver H-bridge outputs where back-EMF spikes threaten gate drivers and MCU I/O. IC Role / Device Role: Clamp placed across motor terminals (cathode to high-side, anode to low-side) to absorb inductive energy during PWM turn-off. Use Value: Fast <1 ns response prevents voltage runaway beyond MOSFET VDSS, eliminating need for snubbers in cost-sensitive white goods designs. |
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 (surface-mount), VBR = 40–44.2 V, VC = 58.1 V @ 10.3 A | Designed for space-constrained PCBs; lacks AEC-Q101 qualification and 200 A IFSM rating | Select when board area is limited and surge severity is ≤Level 3 per IEC 61000-4-5 |
| 1.5KE39AHE3_B | Same electrical specs and 1.5KE package; HE3_B revision replaces HE3_A/C with updated internal process and tighter VBR distribution | No functional change; identical pinout, thermal behavior, and application use cases | Preferred for new designs due to improved manufacturing consistency and extended lifecycle support |
Compared with 1N6285AHE3_A/C, SMBJ36A-E3/52 offers compact SMT integration but sacrifices automotive qualification and surge current headroom, while 1.5KE39AHE3_B provides identical protection performance with enhanced process control - making it a direct revision upgrade rather than a functional alternative.
Availability
1N6285AHE3_A/C is available at Aetrix Electronics and suitable for automotive power line protection, industrial sensor interface hardening, and telecom DC feed surge suppression requiring stable component supply across multi-year production cycles.
Supply support for 1N6285AHE3_A/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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The 1N6285AHE3_A/C belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, standardized transient immunity in harsh electrical environments - emphasizing AEC-Q101 compliance, repeatable clamping, and long-term stability under thermal stress.
FAQ
What is the breakdown voltage tolerance for 1N6285AHE3_A/C?
The 1N6285AHE3_A/C has a specified breakdown voltage range of 37.1 V to 41.0 V at 1.0 mA test current, corresponding to a ±5% tolerance about the nominal 39 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports reliable overvoltage trip-point design in safety-critical circuits using the 1N6285AHE3_A/C.
Is 1N6285AHE3_A/C suitable for bidirectional transient protection?
No, the 1N6285AHE3_A/C is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. It conducts only in reverse avalanche mode and blocks forward current above ~3.5 V. For bidirectional protection, Vishay offers the 1N6285CA variant (not the 1N6285AHE3_A/C), which uses symmetrical junction construction and no polarity marking.
What does the "HE3_A/C" suffix mean in 1N6285AHE3_A/C?
The "HE3" denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance; "A/C" indicates the revision code per Vishay's internal documentation, confirming compliance with the 09-Aug-2022 revision of document 88301. This suffix distinguishes it from commercial-grade E3 variants and confirms suitability for automotive applications requiring validated reliability.
Can 1N6285AHE3_A/C be used in parallel to increase surge current handling?
Yes, multiple 1N6285AHE3_A/C devices can be paralleled to increase total IPPM capability, but matching VBR within ±1% is required to ensure balanced current sharing. Uneven distribution may cause premature failure of one unit. For higher power needs, Vishay recommends using a single higher-rated device like 1N6299A (150 V, 207 VC) rather than parallel 1N6285AHE3_A/C units.
What is the maximum allowable soldering temperature for 1N6285AHE3_A/C?
The 1N6285AHE3_A/C supports solder dip at 275 °C maximum for 10 seconds per JESD 22-B106, and its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 for solderability. Reflow profiles must stay within JEDEC J-STD-020 limits for plastic packages, with peak temperature ≤260 °C for ≤30 seconds to avoid epoxy degradation or bond wire stress.
1N6285AHE3_A/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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 33.3V
- Voltage - Breakdown (Min):
- 37.1V
- Voltage - Clamping (Max) @ Ipp:
- 53.9V
- Current - Peak Pulse (10/1000µs):
- 27.8A
- 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
1N6285AHE3_A/C FAQ
1.How can I place an order for 1N6285AHE3_A/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6285AHE3_A/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 1N6285AHE3_A/C reliable?
The price and inventory of 1N6285AHE3_A/C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6285AHE3_A/C is usually 5 days.
3.What payment methods are accepted for 1N6285AHE3_A/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6285AHE3_A/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6285AHE3_A/C?
1N6285AHE3_A/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6285AHE3_A/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 1N6285AHE3_A/C?
For technical support, including 1N6285AHE3_A/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6285AHE3_A/C requirements.
6.How does Aetrix verify that 1N6285AHE3_A/C is sourced from the original manufacturer or authorized distributors?
All 1N6285AHE3_A/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 1N6285AHE3_A/C meets industry standards.
7.What is the process for return or replacement of 1N6285AHE3_A/C?
All 1N6285AHE3_A/C units undergo pre-shipment inspection (PSI). If there is an issue with 1N6285AHE3_A/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 1N6285AHE3_A/C part is unused and in its original packaging.
Return procedure for 1N6285AHE3_A/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6285AHE3_A/C Tags
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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