My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1N6285A-E3/54
- Part No.:
- 1N6285A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6285A-E3/54.pdf
- Description:
- TVS DIODE 33.3VWM 53.9VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:2,079
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N6285A-E3/54 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), 33.3 V stand-off 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 DC power rail and signal line protection for industrial and automotive control modules.
For engineers reviewing the 1N6285A-E3/54 datasheet, 1N6285A-E3/54 pinout, 1N6285A-E3/54 application, or 1N6285A-E3/54 equivalent, this page delivers verified electrical parameters, package dimensions, clamping behavior under surge conditions, thermal derating curves, and direct alternatives for ESD/lightning transient suppression in 24 V and 36 V systems.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches into low-impedance conduction to divert transient energy away from downstream ICs or MOSFETs. Its glass-passivated junction ensures stable breakdown and low leakage (<1.0 µA at VWM).
It delivers 1500 W peak pulse power handling per 10/1000 µs waveform with <1 ns response time, 175 °C maximum junction temperature, and thermal resistance of 15.4 °C/W (junction-to-lead), enabling reliable operation without heatsinking in short-duration surge events.
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 threshold for repeatable clamping activation |
| VWM | 33.3 V - maximum continuous reverse working voltage before leakage rises above 1.0 µA |
| VC @ IPPM | 53.9 V at 27.8 A - clamped voltage seen by protected circuit during full 1500 W transient event |
| PPPM | 1500 W - peak surge power dissipation capability with 10/1000 µs waveform, duty cycle ≤ 0.01 % |
| IFSM | 200 A - non-repetitive forward surge current rating (8.3 ms half-sine), critical for input rectifier stage protection |
| TJ max. | +175 °C - enables use in under-hood automotive or high-ambient industrial environments |
| RθJL | 15.4 °C/W - low junction-to-lead thermal resistance supports high pulse energy without PCB copper heatsinking |
Pinout & Package
Package: Case Style 1.5KE - molded epoxy body with matte tin-plated leads; RoHS-compliant (E3 suffix); UL 94 V-0 rated; lead length 0.375" (9.5 mm); weight 0.968 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or lower-potential node in unidirectional clamp configuration |
| Cathode (banded end) | Reverse-biased clamping terminal | Connected to protected line (e.g., 24 V rail or CAN_H); color band identifies polarity for correct PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance (±5 %) and low leakage (<1 µA) across temperature and lifetime |
| 1500 W peak pulse power | Handles lightning-induced surges (IEC 61000-4-5 Level 4) on 24 V/36 V power rails without failure |
| <1 ns response time | Clamps transients before sensitive logic or gate drivers experience overvoltage stress |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a/5a) |
| AEC-Q101 qualified variants available | HE3 suffix versions meet automotive reliability standards; E3/54 is commercial-grade but shares identical die and package |
Applications
| Industrial PLC I/O Protection | Automotive Body Control Module |
|---|---|
Use Scenario: Protecting 24 V digital input channels against inductive kickback from solenoid valves and relay coils. IC Role / Device Role: Unidirectional shunt clamp placed between input line and ground, upstream of optocoupler or MCU GPIO. Use Value: Limits transient voltage to ≤53.9 V, preventing damage to 3.3 V or 5 V level-shifters and ensuring >100,000 surge cycles per channel. |
Use Scenario: Safeguarding LIN bus transceiver power supply (VCC) against load dump and jump-start surges. IC Role / Device Role: Primary overvoltage clamp on 12 V/24 V supply rail feeding LIN PHY ICs. Use Value: Clamps 100 V/100 ms load dump to <54 V within nanoseconds, maintaining transceiver functionality without reset or latch-up. |
| Telecom Power Feeds | Consumer Appliance Motor Drivers |
Use Scenario: Protecting PoE-powered remote units from induced surges on long outdoor Ethernet runs. IC Role / Device Role: Secondary TVS on 48 V DC input stage, complementing primary front-end protection. Use Value: Absorbs residual 1500 W transients after upstream MOV/GDT stages, preserving DC-DC converter input FETs. |
Use Scenario: Shielding H-bridge gate drivers from back-EMF spikes generated by brushed DC motors in washing machines. IC Role / Device Role: Rail-to-rail clamp across motor supply (12–24 V) and ground, adjacent to driver IC. Use Value: Prevents gate oxide rupture in N-channel MOSFETs by limiting VDS to <54 V during commutation spikes. |
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 | Lower PPPM (600 W), smaller SMB package (vs. DO-201AB), VBR = 40–44.2 V, VC = 58.1 V @ 10.3 A | Better suited for space-constrained PCBs; insufficient for 1500 W IEC 61000-4-5 Level 4 testing | Select when board area is critical and surge energy is ≤600 W; verify layout thermal relief for repeated pulses. |
| 1.5KE39A | Same die, identical specs, differing only in packaging format (bulk vs. tape-and-reel E3/54); same VBR, VC, PPPM, and thermal performance | No functional difference; 1.5KE39A is the base part number used interchangeably in Vishay documentation | Choose 1N6285A-E3/54 for automated SMT placement (13" paper tape, 1400 pcs/reel); 1.5KE39A for manual prototyping or bulk hand-soldering. |
Compared with SMBJ36A, the 1N6285A-E3/54 provides 2.5× higher surge power margin and superior thermal robustness in high-energy industrial environments; compared with 1.5KE39A, it offers identical protection performance with optimized logistics for high-volume production assembly.
Availability
1N6285A-E3/54 is available at Aetrix Electronics and suitable for industrial automation, automotive electronics, and telecom infrastructure requiring stable component supply with traceable sourcing and long-term lifecycle support.
Supply support for 1N6285A-E3/54 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The 1N6285A-E3/54 belongs to Vishay's TRANSZORB® TVS family, engineered for robust transient suppression in harsh electromagnetic environments - targeting automotive, industrial, and communications systems where failure due to voltage surges is unacceptable.
FAQ
What is the breakdown voltage tolerance of the 1N6285A-E3/54?
The 1N6285A-E3/54 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 VBR window ensures consistent clamping activation across production lots and temperature extremes from –55 °C to +175 °C.
Can the 1N6285A-E3/54 be used in bidirectional configurations?
No - the 1N6285A-E3/54 is a unidirectional TVS diode, identified by its cathode band marking. Bidirectional operation requires a CA-suffixed part such as 1N6285CA. Using the 1N6285A-E3/54 in reverse-biased AC applications would result in forward conduction and potential failure during negative half-cycles.
What is the maximum clamping voltage of the 1N6285A-E3/54 under surge conditions?
The 1N6285A-E3/54 clamps to a maximum of 53.9 V at its rated peak pulse current of 27.8 A (10/1000 µs waveform). This VC value is guaranteed across temperature and represents the highest voltage imposed on the protected circuit during worst-case transient events.
Is the 1N6285A-E3/54 RoHS compliant and lead-free?
Yes - the "E3" suffix in 1N6285A-E3/54 indicates full RoHS compliance and lead-free construction per EU Directive 2011/65/EU. The matte tin-plated leads meet J-STD-002 and JESD 22-B102 solderability requirements, and the device passes JESD 201 Class 1A whisker testing.
How does thermal derating affect the 1N6285A-E3/54's power handling above 25 °C?
The 1N6285A-E3/54 must be derated linearly above 25 °C ambient: its 6.5 W steady-state power dissipation drops to zero at 175 °C junction temperature. For example, at 100 °C case temperature, allowable PD reduces to ~3.2 W. Derating follows the curve in Figure 5 of Vishay document 88301, based on RθJA = 75 °C/W.
1N6285A-E3/54 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:
- Active
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1N6285A-E3/54 FAQ
1.How can I place an order for 1N6285A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6285A-E3/54 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 1N6285A-E3/54 reliable?
The price and inventory of 1N6285A-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6285A-E3/54 is usually 5 days.
3.What payment methods are accepted for 1N6285A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6285A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6285A-E3/54?
1N6285A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6285A-E3/54 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 1N6285A-E3/54?
For technical support, including 1N6285A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6285A-E3/54 requirements.
6.How does Aetrix verify that 1N6285A-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1N6285A-E3/54 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 1N6285A-E3/54 meets industry standards.
7.What is the process for return or replacement of 1N6285A-E3/54?
All 1N6285A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6285A-E3/54, 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 1N6285A-E3/54 part is unused and in its original packaging.
Return procedure for 1N6285A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6285A-E3/54 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
