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Vishay General Semiconductor - Diodes Division 1.5KE8.2A-E3/54
- Part No.:
- 1.5KE8.2A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE8.2A-E3/54.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:3,925
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Product details
Overview
1.5KE8.2A-E3/54 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for primary overvoltage protection of 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 in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the 1.5KE8.2A-E3/54 datasheet, 1.5KE8.2A-E3/54 pinout, 1.5KE8.2A-E3/54 application, or 1.5KE8.2A-E3/54 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, clamping performance under surge conditions, thermal derating behavior, and direct alternatives for ESD/lightning transient suppression in 12 V and 24 V systems.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt protector: it remains high-impedance below VWM (7.02 V), enters avalanche breakdown between 7.79 V and 8.61 V, and limits transient energy by clamping to ≤12.1 V at 124 A. Its glass-passivated junction enables sub-nanosecond response time and low incremental surge resistance.
Rated for -55 °C to +175 °C junction temperature, it supports repetitive surge events at 0.01 % duty cycle and complies with JESD22-B106 soldering (275 °C, 10 s). The 1.5KE case provides UL 94 V-0 flammability rating and matte tin-plated leads per J-STD-002.
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 triggering |
| VWM | 7.02 V - maximum continuous reverse operating voltage before leakage exceeds 200 μA |
| VC @ IPPM | 12.1 V at 124 A - clamping voltage during 10/1000 µs surge, limiting downstream IC stress |
| PPPM | 1500 W - peak transient power handling capability, enabling protection against IEC 61000-4-5 Level 4 surges |
| IPPM | 124 A - maximum non-repetitive peak pulse current supported without degradation |
| TJ max. | +175 °C - extended junction temperature rating allows use in under-hood automotive environments |
| RθJA | 75 °C/W - thermal resistance from junction to ambient, informs heatsinking requirements for sustained operation |
Pinout & Package
1.5KE8.2A-E3/54 uses the standard axial-leaded JEDEC 1.5KE package (Case Style 1.5KE), with cathode indicated by a color band on one end. Leads are matte tin-plated and compliant with J-STD-002 solderability requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND or return path) in unidirectional clamp configuration |
| Cathode | Avalanche clamping terminal | Marked with color band; connected to protected line (e.g., 12 V rail or CAN_H) to shunt transients to ground |
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) | Supports robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 combination wave surges |
| Sub-nanosecond response time | Clamps transients before sensitive ICs experience overstress - critical for protecting CAN transceivers and microcontrollers |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD or inductive switch-off) |
| UL 94 V-0 molded epoxy body | Provides flame-retardant mechanical encapsulation suitable for automotive and industrial enclosures |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protects 12 V supply inputs of BCM microcontrollers from load-dump transients (ISO 16750-2) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed between VBAT and chassis ground, triggered within 1 ns upon exceeding VWM. Use Value: Limits clamped voltage to 12.1 V during 124 A surge, preventing latch-up or gate oxide damage in 3.3 V/5 V logic supplies. | Use Scenario: Shields 24 V digital input channels of programmable logic controllers from field-wiring induced surges (IEC 61000-4-4/5). IC Role / Device Role / Timing Role: Standoff device mounted at connector entry point, conducting only during >7.79 V transients. Use Value: Maintains <200 μA leakage at 7.02 V, ensuring clean logic-level detection while clamping to ≤12.1 V under 1 kV/500 A threat. |
| Automotive Sensor Signal Line | Consumer Appliance Motor Driver |
Use Scenario: Safeguards analog outputs of pressure/temperature sensors (e.g., SENT or PWM) against ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS placed inline with sensor output trace, referenced to sensor ground. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) to <12.1 V within 1 ns, preserving signal integrity and ADC accuracy. | Use Scenario: Suppresses inductive kickback from brushed DC motor commutation in washing machine control boards. IC Role / Device Role / Timing Role: Parallel-connected TVS across motor terminals, diverting flyback energy away from H-bridge MOSFETs. Use Value: Handles 1500 W peak pulse without degradation, limiting drain-source voltage spikes to safe levels for 60 V-rated FETs. |
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 | Lower PPPM (600 W), smaller SMB package (surface-mount), VBR = 8.89–9.83 V, VC = 12.7 V @ 47.2 A | Not suitable for high-energy ISO 7637-2 load dump; better for space-constrained PCBs with moderate surge risk | Select when board area is limited and surge threats are limited to IEC 61000-4-2/4-4; verify layout thermal relief for 600 W dissipation |
| 1.5KE8.2CA | Bidirectional variant (no polarity marking), identical VBR/VC/PPPM, rated for ±7.79–8.61 V clamping | Required for AC-coupled or differential signal lines (e.g., RS-485, CAN bus) where polarity reversal occurs | Choose only when protecting bidirectional signals; not interchangeable with 1.5KE8.2A-E3/54 due to polarity and marking differences |
Compared with SMBJ8.0A and 1.5KE8.2CA, the 1.5KE8.2A-E3/54 offers higher surge robustness (1500 W vs. 600 W) and axial-leaded through-hole mounting for mechanically stable high-current paths, while its unidirectional polarity makes it optimal for DC rail protection where ground-referenced clamping is required.
Availability
1.5KE8.2A-E3/54 is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and consumer appliance designs requiring stable component supply, long-lifecycle support, and RoHS-compliant transient protection.
Supply support for 1.5KE8.2A-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, TVS devices, and optoelectronics with emphasis on reliability and automotive-grade qualification.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where robustness against lightning, load dump, and ESD is mandatory.
FAQ
What is the breakdown voltage range of the 1.5KE8.2A-E3/54?
The 1.5KE8.2A-E3/54 has a guaranteed breakdown voltage (VBR) range of 7.79 V to 8.61 V at a test current of 10 mA, measured per JEDEC standards. This tight tolerance ensures consistent clamping onset across production lots and supports reliable design margining for 8 V nominal systems. The value is confirmed in Vishay's official datasheet document 88301, revision 09-Aug-2022.
Is the 1.5KE8.2A-E3/54 RoHS compliant and lead-free?
Yes, the 1.5KE8.2A-E3/54 carries the "E3" suffix, indicating full RoHS compliance and commercial-grade qualification per EU Directive 2011/65/EU. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the molding compound satisfies UL 94 V-0 flammability rating. No lead or other restricted substances exceed allowable thresholds.
What is the clamping voltage of the 1.5KE8.2A-E3/54 under surge conditions?
The 1.5KE8.2A-E3/54 clamps to a maximum of 12.1 V when subjected to its rated peak pulse current of 124 A using the standardized 10/1000 µs waveform. This VC value is measured at the device terminals and reflects actual system-level protection capability - critical for ensuring downstream ICs remain within absolute maximum ratings during surge events.
Can the 1.5KE8.2A-E3/54 be used in automotive applications?
Yes, the 1.5KE8.2A-E3/54 is widely deployed in automotive applications including body control modules, sensor interfaces, and infotainment power supplies. While the base E3 version is commercial grade, its 175 °C maximum junction temperature, glass-passivated junction, and robust 1500 W surge rating meet core requirements for under-dash and engine-bay-adjacent locations. For AEC-Q101 qualification, specify the HE3 variant (e.g., 1.5KE8.2AHE3_B).
How does the 1.5KE8.2A-E3/54 differ from the bidirectional 1.5KE8.2CA?
The 1.5KE8.2A-E3/54 is unidirectional with cathode marked by a band and intended for DC rail protection (e.g., 12 V to GND), whereas the 1.5KE8.2CA is bidirectional, unmarked, and designed for AC or differential lines like RS-485 or CAN. Their VBR, VC, and PPPM are identical, but polarity, marking, and application scope differ fundamentally - they are not interchangeable without circuit redesign.
1.5KE8.2A-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):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 124A
- 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
1.5KE8.2A-E3/54 FAQ
1.How can I place an order for 1.5KE8.2A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE8.2A-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 1.5KE8.2A-E3/54 reliable?
The price and inventory of 1.5KE8.2A-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 1.5KE8.2A-E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE8.2A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE8.2A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE8.2A-E3/54?
1.5KE8.2A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE8.2A-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 1.5KE8.2A-E3/54?
For technical support, including 1.5KE8.2A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE8.2A-E3/54 requirements.
6.How does Aetrix verify that 1.5KE8.2A-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE8.2A-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 1.5KE8.2A-E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE8.2A-E3/54?
All 1.5KE8.2A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE8.2A-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 1.5KE8.2A-E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE8.2A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE8.2A-E3/54 Tags
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