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Vishay General Semiconductor - Diodes Division 1.5KE8.2-E3/54
- Part No.:
- 1.5KE8.2-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE8.2-E3/54.pdf
- Description:
- TVS DIODE 6.63VWM 12.5VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:6,268
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Product details
Overview
1.5KE8.2-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary-side overvoltage protection in DC power rails and signal lines. It features a 7.79 V to 8.61 V breakdown voltage (VBR) at 10 mA, 7.02 V maximum stand-off voltage (VWM), 12.1 V clamping voltage (VC) at 124 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used to safeguard MOSFETs, ICs, and sensor interfaces against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1.5KE8.2-E3/54 datasheet, 1.5KE8.2-E3/54 pinout, 1.5KE8.2-E3/54 application, or 1.5KE8.2-E3/54 equivalent, this device is evaluated for robust transient suppression in automotive body electronics, industrial PLC I/O modules, and telecom line-card surge protection where fast response (<1 ns), low clamping ratio, and AEC-Q101-compliant variants are critical selection criteria.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance above VWM (7.02 V), then avalanches sharply at VBR (min 7.79 V) to limit transient voltage to ≤12.1 V at 124 A. Its glass-passivated junction ensures stable leakage (<200 µA at VWM) and repeatable clamping performance across temperature (–55 °C to +175 °C).
The 1.5KE8.2-E3/54 uses a standardized DO-201AD package with axial leads, rated for 200 A non-repetitive forward surge (8.3 ms half-sine), 6.5 W steady-state power dissipation at TL = 75 °C, and exhibits 0.065 %/°C temperature coefficient of VBR - enabling predictable voltage margining in thermally varying environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V / 8.61 V at 10 mA - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| VWM | 7.02 V - maximum continuous reverse operating voltage before leakage exceeds 200 µA |
| VC @ IPPM | 12.1 V at 124 A - clamped voltage during 1500 W transient, limiting stress on downstream components |
| PPPM | 1500 W (10/1000 µs) - peak surge energy handling capacity for lightning and EFT events |
| IFSM | 200 A (8.3 ms half-sine) - surge current withstand without bond-wire failure |
| TJ range | –55 °C to +175 °C - enables operation in under-hood automotive and industrial ambient extremes |
| Package | DO-201AD (axial lead) - industry-standard through-hole footprint compatible with legacy PCB layouts |
Pinout & Package
1.5KE8.2-E3/54 is housed in a DO-201AD molded epoxy package with two axial leads. The cathode is marked by a color band on the body; polarity must be observed in series-connected protection circuits.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Connected to protected circuit ground or low-side return path during clamping |
| Cathode | Current exit point in forward bias; marked end | Connected to protected line (e.g., 12 V rail); conducts avalanche current to ground when VIN > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance (±5 %) and low long-term parameter drift under thermal cycling |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV) surge waveforms without degradation |
| Clamping ratio (VC/VBR) | 1.56 max - delivers tight voltage limiting relative to breakdown, reducing component stress |
| Response time | <1 ns - faster than MOVs or GDTs, protecting sensitive CMOS inputs before damage occurs |
| AEC-Q101 qualification option | Available as 1.5KE8.2AHE3_B variant - validated for automotive under-hood applications |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Module |
|---|---|
Use Scenario: Protects 12 V supply rail and LIN bus interface from load-dump transients and alternator ripple spikes. IC Role / Device Role / Timing Role: Shunt clamping element placed between power rail and chassis ground; activates within 1 ns to clamp spikes to ≤12.1 V. Use Value: Prevents latch-up or gate oxide rupture in MCU I/O drivers and transceiver ICs during ISO 7637-2 Pulse 5a events. |
Use Scenario: Shields 24 V digital input optocoupler front-end from field-wiring induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Primary overvoltage clamp on dry-contact input line; absorbs 1 kV/500 A surge per IEC 61000-4-4. Use Value: Eliminates need for external series impedance or RC snubbers, simplifying input stage design while meeting EN 61000-6-2 immunity. |
| Telecom Line Card Protection | Consumer Appliance Motor Drive Board |
Use Scenario: Guards Ethernet PHY power pins and RS-485 transceivers against lightning-induced common-mode surges on outdoor cabling. IC Role / Device Role / Timing Role: Unidirectional TVS on VCC rail and signal lines; coordinated with common-mode chokes for differential-mode suppression. Use Value: Maintains <12.1 V rail clamping during 10/1000 µs surges, preserving PHY functionality without reset or data corruption. |
Use Scenario: Suppresses back-EMF spikes from brushed DC motors in washing machine control boards. IC Role / Device Role / Timing Role: Across-motor terminals and H-bridge supply rails; clamps inductive kickback to safe levels during PWM commutation. Use Value: Extends MOSFET lifetime by limiting VDS overshoot to ≤12.1 V, avoiding avalanche fatigue and thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | DO-214AA package (SMB), 8.0 V VWM, 12.3 V VC @ 121 A, 600 W PPPM | Lower power rating; surface-mount only; better suited for space-constrained PCBs | Select when board area is limited and 600 W surge margin suffices for IEC 61000-4-5 Level 2 |
| 1.5KE8.2A | Same electrical specs and DO-201AD package; lacks E3 RoHS suffix and tape/reel packaging (54 = 13" reel, 1400 pcs) | No RoHS compliance documentation or JESD 201 whisker testing; not suitable for regulated commercial production | Choose 1.5KE8.2-E3/54 for certified RoHS compliance, traceable sourcing, and automated assembly compatibility |
Compared with SMBJ8.0A, the 1.5KE8.2-E3/54 delivers 2.5× higher surge power (1500 W vs. 600 W) and through-hole reliability, while versus 1.5KE8.2A it adds documented RoHS compliance, JEDEC-compliant tin plating, and verified 13" tape-and-reel logistics - critical for OEM manufacturing continuity.
Availability
1.5KE8.2-E3/54 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O protection, and telecom line-card surge suppression requiring stable component supply, full RoHS compliance, and AEC-Q101-qualified alternatives.
Supply support for 1.5KE8.2-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, rectifiers, and protection devices with emphasis on reliability, power handling, and automotive-grade validation.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting applications where failure modes include lightning strikes, load dump, and inductive switching in automotive, industrial, and telecom infrastructure.
FAQ
What is the breakdown voltage tolerance for 1.5KE8.2-E3/54?
The 1.5KE8.2-E3/54 has a specified breakdown voltage (VBR) range of 7.79 V to 8.61 V at 10 mA test current, representing a ±5 % tolerance around the nominal 8.2 V rating. This tight tolerance ensures consistent clamping behavior across production lots and supports accurate system-level overvoltage margining in designs using the 1.5KE8.2-E3/54.
Is 1.5KE8.2-E3/54 RoHS compliant and lead-free?
Yes, the "E3" suffix in 1.5KE8.2-E3/54 explicitly denotes RoHS compliance per EU Directive 2011/65/EU, with matte tin-plated leads meeting J-STD-002 solderability requirements and passing JESD 201 Class 1A whisker testing. The device contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits.
Can 1.5KE8.2-E3/54 be used in bidirectional configurations?
No, 1.5KE8.2-E3/54 is a unidirectional TVS diode. Bidirectional variants use the "CA" suffix (e.g., 1.5KE8.2CA). Using 1.5KE8.2-E3/54 in AC or dual-polarity circuits would result in forward conduction during negative half-cycles, causing failure. For bidirectional protection at ~8.2 V standoff, specify 1.5KE8.2CA instead of 1.5KE8.2-E3/54.
What is the maximum clamping voltage of 1.5KE8.2-E3/54 under surge conditions?
The maximum clamping voltage (VC) of 1.5KE8.2-E3/54 is 12.1 V at 124 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is guaranteed per Vishay's datasheet and represents the upper limit of voltage seen by protected circuitry during worst-case transient events - a key parameter for ensuring downstream ICs remain within absolute maximum ratings.
Does 1.5KE8.2-E3/54 meet AEC-Q101 qualification?
The base 1.5KE8.2-E3/54 is commercial-grade and not AEC-Q101 qualified. However, Vishay offers the functionally identical 1.5KE8.2AHE3_B variant - which shares the same electrical specs and DO-201AD package - explicitly qualified to AEC-Q101 for automotive under-hood use. For automotive applications requiring qualification, select 1.5KE8.2AHE3_B rather than 1.5KE8.2-E3/54.
1.5KE8.2-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6.63V
- Voltage - Breakdown (Min):
- 7.38V
- Voltage - Clamping (Max) @ Ipp:
- 12.5V
- Current - Peak Pulse (10/1000µs):
- 120A
- 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
1.5KE8.2-E3/54 FAQ
1.How can I place an order for 1.5KE8.2-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE8.2-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 1.5KE8.2-E3/54 reliable?
The price and inventory of 1.5KE8.2-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 1.5KE8.2-E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE8.2-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE8.2-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE8.2-E3/54?
1.5KE8.2-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE8.2-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 1.5KE8.2-E3/54?
For technical support, including 1.5KE8.2-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE8.2-E3/54 requirements.
6.How does Aetrix verify that 1.5KE8.2-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE8.2-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 1.5KE8.2-E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE8.2-E3/54?
All 1.5KE8.2-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE8.2-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 1.5KE8.2-E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE8.2-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE8.2-E3/54 Tags
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