My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5KE82A-E3/54
- Part No.:
- 1.5KE82A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE82A-E3/54.pdf
- Description:
- TVS DIODE 70.1VWM 113VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:1,570
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5KE82A-E3/54 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 77.9 V to 86.1 V breakdown voltage (VBR), 70.1 V maximum standoff voltage (VWM), 113 V clamping voltage at 13.3 A peak pulse current, 1500 W peak pulse power rating with 10/1000 µs waveform, and operates across -55 °C to +175 °C junction temperature range - deployed in automotive power supply inputs and industrial sensor interface protection.
For engineers reviewing the 1.5KE82A-E3/54 datasheet, 1.5KE82A-E3/54 pinout, 1.5KE82A-E3/54 application, or 1.5KE82A-E3/54 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, clamping performance under surge conditions, thermal resistance data, and direct alternative options for circuit-level ESD and lightning transient suppression.
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 activates when reverse voltage exceeds VBR, diverting transients up to 13.3 A (10/1000 µs) while limiting voltage to ≤113 V - critical for safeguarding MOSFET gate drivers and microcontroller I/O pins.
Rated for 1500 W peak pulse power and 6.5 W steady-state dissipation on infinite heatsink, it supports repetitive surge events at 0.01% duty cycle. The device meets JESD 22-B106 solderability (275 °C, 10 s) and JESD 201 Class 1A whisker testing, with RoHS-compliant matte tin-plated leads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 77.9 V / 86.1 V - defines precise voltage threshold at which clamping initiates under 1 mA test current |
| VWM | 70.1 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPPM | 113 V - clamped voltage during 13.3 A 10/1000 µs surge, directly limiting stress on downstream ICs |
| PPPM | 1500 W - peak transient energy absorption capability per single 1 ms pulse |
| TJ range | -55 °C to +175 °C - enables deployment in under-hood automotive and high-temperature industrial environments |
| RθJA | 75 °C/W - thermal resistance from junction to ambient, informing heatsinking requirements for sustained operation |
| IFSM | 200 A - non-repetitive forward surge current rating (8.3 ms half-sine), relevant for fault-current limiting |
Pinout & Package
Package: JEDEC DO-201AD (Case Style 1.5KE), axial-leaded molded epoxy body with cathode band marking; UL 94 V-0 rated, 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 of protected line; conducts during forward surge events |
| Cathode | Reverse-biased clamping terminal | Marked with color band; connected to higher-potential rail to enable reverse avalanche clamping |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity |
| 1500 W peak pulse power (10/1000 µs) | Handles high-energy transients from inductive switching or lightning-induced surges without degradation |
| Sub-nanosecond response time | Clamps within <1 ns - faster than MOVs or polymer-based protectors - preserving signal integrity |
| AEC-Q101 qualification option | Available in HE3 variant for automotive-grade reliability; this E3/54 part is commercial grade |
| RoHS-compliant matte tin plating | Meets J-STD-002 solderability and JESD 22-B102 intermetallic growth standards |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: 12 V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Primary clamping device placed at board entry to shunt >100 V transients before reaching DC-DC converters and MCU power rails. Use Value: Limits voltage to ≤113 V during 13.3 A surge, preventing latch-up or oxide breakdown in 3.3 V/5 V logic supplies. | Use Scenario: 4–20 mA current loop interfaces in PLC analog input modules subjected to field wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed across signal and return lines to clamp negative-going transients induced by relay coil de-energization. Use Value: Maintains signal fidelity with <1 ns response and 70.1 V standoff, ensuring no false triggering during normal 24 V operation. |
| Telecom Line Interface Protection | Consumer Power Adapter Output Protection |
Use Scenario: DSL or PoE-powered Ethernet ports where external cabling introduces lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Paired with common-mode chokes and bidirectional TVS arrays; 1.5KE82A-E3/54 protects DC bias rails feeding active components. Use Value: Withstands 1500 W pulses without parametric shift, enabling compliance with ITU-T K.20 and GR-1089-CORE surge immunity requirements. | Use Scenario: Secondary-side 5 V/12 V outputs of wall adapters used in smart home hubs, where user-accessible ports risk ESD and accidental short-circuit surges. IC Role / Device Role / Timing Role: Final-stage overvoltage limiter between SMPS output and USB or GPIO connectors. Use Value: Clamps fast-rising transients to 113 V before they reach sensitive SoCs, meeting IEC 61000-4-2 Level 4 (15 kV air) system-level robustness targets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ80A | DO-214AA package (SMB), 80 V VWM, 1000 W PPPM, 125 V VC @ 9.4 A | Lower power rating and smaller footprint; suited for space-constrained PCBs with moderate surge exposure | Select when board area is limited and peak surge energy remains below 1000 W |
| 1.5SMC82A | SMD DO-214AB (SMC) package, identical 77.9–86.1 V VBR, same 1500 W rating but 113 V VC @ 13.3 A | Surface-mount alternative requiring reflow-compatible layout; no axial lead bending or through-hole drilling | Choose for automated assembly and higher vibration resistance in mobile or portable equipment |
Compared with 1.5KE82A-E3/54, SMBJ80A offers reduced surge capacity in a compact SMD form, while 1.5SMC82A matches its 1500 W rating and clamping performance in a surface-mount package - enabling design flexibility between through-hole ruggedness and SMT manufacturability without sacrificing protection level.
Availability
1.5KE82A-E3/54 is available at Aetrix Electronics and suitable for automotive power input protection, industrial sensor signal line protection, telecom line interface protection, and consumer power adapter output protection requiring stable component supply and traceable sourcing.
Supply support for 1.5KE82A-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 designs discrete semiconductors including diodes, rectifiers, and TVS devices for high-reliability industrial, automotive, and computing applications.
The 1.5KE series was developed specifically for high-power transient suppression in harsh environments, emphasizing robust glass-passivated junctions, repeatable clamping, and extended temperature operation up to +175 °C.
FAQ
What is the breakdown voltage range of the 1.5KE82A-E3/54?
The 1.5KE82A-E3/54 has a guaranteed breakdown voltage (VBR) range of 77.9 V to 86.1 V at 1 mA test current, measured per JEDEC standard. This tight tolerance ensures predictable clamping onset across production lots and temperature extremes, making it suitable for precision overvoltage protection in regulated 72–80 V systems such as 48 V automotive auxiliary rails. The value is confirmed in Vishay's Document Number 88301, Table on page 2.
Does the 1.5KE82A-E3/54 have AEC-Q101 qualification?
No, the 1.5KE82A-E3/54 is a commercial-grade part with RoHS-compliant E3 suffix. AEC-Q101 qualification is only available for variants with the HE3 suffix (e.g., 1.5KE82AHE3_B). The E3/54 designation indicates tape-and-reel packaging (1400 pcs per 13" reel) and standard reliability screening - appropriate for industrial and consumer applications but not automotive safety-critical subsystems requiring AEC-Q101 validation.
What is the clamping voltage of the 1.5KE82A-E3/54 under surge conditions?
The 1.5KE82A-E3/54 clamps to a maximum of 113 V at its rated peak pulse current of 13.3 A using the standard 10/1000 µs waveform. This value is measured across the device terminals during transient event simulation and represents the upper voltage limit imposed on protected circuitry. It is specified in the "ELECTRICAL CHARACTERISTICS" table on page 2 of Vishay Document Number 88301 and is critical for verifying margin against downstream component absolute maximum ratings.
Can the 1.5KE82A-E3/54 be used in bidirectional configurations?
No, the 1.5KE82A-E3/54 is a unidirectional TVS diode, identifiable by its cathode band marking. Bidirectional versions use the "CA" suffix (e.g., 1.5KE82CA) and lack polarity marking. Using the unidirectional 1.5KE82A-E3/54 in AC or bipolar signal paths would result in forward conduction during negative half-cycles, causing failure. For bidirectional protection at ~82 V, the correct part is 1.5KE82CA, which has symmetric clamping in both directions.
What is the thermal resistance of the 1.5KE82A-E3/54, and how does it affect layout?
The 1.5KE82A-E3/54 has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W under standard test conditions. This value assumes minimal copper pour; actual board-level RθJA improves significantly with ≥1 in² (6.5 cm²) of 2 oz copper connected to both leads. Layout must provide adequate copper area and avoid thermal isolation - especially important when operating near its 6.5 W steady-state power limit or during repetitive surge events.
1.5KE82A-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):
- 70.1V
- Voltage - Breakdown (Min):
- 77.9V
- Voltage - Clamping (Max) @ Ipp:
- 113V
- Current - Peak Pulse (10/1000µs):
- 13.3A
- 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
1.5KE82A-E3/54 FAQ
1.How can I place an order for 1.5KE82A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE82A-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 1.5KE82A-E3/54 reliable?
The price and inventory of 1.5KE82A-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 1.5KE82A-E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE82A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE82A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE82A-E3/54?
1.5KE82A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE82A-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 1.5KE82A-E3/54?
For technical support, including 1.5KE82A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE82A-E3/54 requirements.
6.How does Aetrix verify that 1.5KE82A-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE82A-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 1.5KE82A-E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE82A-E3/54?
All 1.5KE82A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE82A-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 1.5KE82A-E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE82A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE82A-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 …
