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Vishay General Semiconductor - Diodes Division 1.5KE8.2AHE3_B/C
- Part No.:
- 1.5KE8.2AHE3_B/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE8.2AHE3_B/C.pdf
- Description:
- 1.5KW,8.2V 5%,UNIDIR,AXIAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:9,352
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Product details
Overview
1.5KE8.2AHE3_B/C 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 minimum breakdown voltage (VBR), 7.02 V maximum stand-off voltage (VWM), 12.1 V clamping voltage (VC) at 124 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 - used in automotive power supply inputs and industrial sensor interface protection.
For engineers reviewing the 1.5KE8.2AHE3_B/C datasheet, 1.5KE8.2AHE3_B/C pinout, 1.5KE8.2AHE3_B/C application, or 1.5KE8.2AHE3_B/C equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), JEDEC 1.5KE package dimensions, and direct replacement guidance for circuit-level ESD and lightning surge protection design.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction optimized for fast transient response (<1 ns) and low incremental clamping resistance. Its 1500 W peak pulse power handling is defined under standardized 10/1000 µs waveform conditions with 0.01% duty cycle, and it maintains stable clamping performance up to 175 °C junction temperature.
The device complies with JESD22-B102 solderability standards and meets JESD201 Class 2 whisker resistance (HE3 suffix). It is rated for 200 A non-repetitive forward surge current (IFSM) and exhibits 0.065 %/°C temperature coefficient of VBR, enabling predictable voltage clamping across wide thermal operating ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V / 8.61 V at 10 mA test current - defines precise voltage threshold where clamping initiates reliably |
| VWM | 7.02 V maximum - ensures no conduction during normal 5 V–6 V DC rail operation |
| VC @ IPPM | 12.1 V at 124 A - limits downstream IC voltage stress during 1500 W surge events |
| PPPM | 1500 W with 10/1000 µs waveform - supports robust protection against lightning-induced transients per IEC 61000-4-5 |
| IFSM | 200 A (8.3 ms half-sine) - withstands high-energy inductive switch-off surges without failure |
| TJ range | –55 °C to +175 °C - enables deployment in under-hood automotive and industrial control environments |
| RθJA | 75 °C/W - informs heatsink requirements for sustained power dissipation in enclosed enclosures |
Pinout & Package
1.5KE8.2AHE3_B/C is housed in the standard JEDEC DO-201AD (Case Style 1.5KE) axial-leaded package with matte tin-plated leads. The cathode is marked by a color band on the body; polarity must be observed during PCB layout to ensure correct unidirectional clamping orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Low-side reference node | Connected to ground or return path; forms clamping loop with cathode |
| Cathode (banded end) | Protected line input | Connected to power rail or signal line requiring overvoltage suppression |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable long-term leakage performance (<200 µA at VWM) and humidity resistance per JESD22-A110 |
| AEC-Q101 qualified (HE3_B variant) | Validated for automotive powertrain and body electronics per stress test requirements including HTGB, HTRB, and TCT |
| 1500 W peak pulse power | Meets IEC 61000-4-5 Level 4 (4 kV) surge immunity when properly routed with low-inductance layout |
| Fast <1 ns response time | Clamps before sensitive MOSFET gate oxides or MCU I/O structures experience destructive overvoltage |
| RoHS-compliant & JESD201 Class 2 whisker resistant | Supports lead-free reflow assembly and prevents tin whisker growth in high-reliability 15+ year deployments |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: 12 V battery feed to infotainment head unit exposed to load dump (ISO 7637-2 Pulse 5a) and jump-start transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converter input stage. Use Value: Limits input voltage to ≤12.1 V during 1500 W surges, preventing regulator latch-up and capacitor overvoltage failure. |
Use Scenario: 4–20 mA current loop interface in PLC analog input module subjected to field wiring ESD and induced surges. IC Role / Device Role / Timing Role: Unidirectional shunt protector across loop terminals, referenced to system ground. Use Value: Clamps transients within 1 ns while maintaining <200 µA leakage at 24 V nominal, preserving loop accuracy. |
| Consumer AC-DC Adapter Output Rail | Telecom DSL Line Interface |
Use Scenario: Secondary-side 5 V output of wall adapter protecting USB peripherals from cross-coupled noise and surge coupling. IC Role / Device Role / Timing Role: Final-stage TVS between output capacitor and connector, minimizing trace inductance. Use Value: Absorbs 1500 W pulses without degradation, ensuring downstream USB controller survives repeated 8/20 µs surges. |
Use Scenario: Protection of ADSL line driver/receiver ICs against lightning-induced common-mode surges on twisted-pair lines. IC Role / Device Role / Timing Role: Paired unidirectional TVS devices (one per line) referenced to chassis ground. Use Value: Provides 12.1 V clamping with <1 ns response, meeting GR-1089-CORE Level 3 telecom surge requirements. |
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 (smaller footprint), 8.0 V VWM, 12.3 V VC @ 103 A, 600 W PPPM | Limited to lower-energy surges; unsuitable for IEC 61000-4-5 Level 4 compliance | Select when board space is constrained and surge threat level is ≤1 kV (IEC 61000-4-2 contact discharge) |
| 1.5KE8.2CA | Bidirectional variant, same VBR/VC specs, symmetric clamping in both polarities | Required for AC-coupled or floating signal lines where reverse polarity transients occur | Choose only if bidirectional protection is mandated - 1.5KE8.2AHE3_B/C is not pin-compatible or functionally interchangeable |
Compared with SMBJ8.0A, 1.5KE8.2AHE3_B/C delivers 2.5× higher surge power handling and AEC-Q101 qualification, making it suitable for automotive and industrial mains-connected systems; compared with 1.5KE8.2CA, it provides lower leakage and tighter VWM margin for DC rail use but cannot suppress negative-going transients.
Availability
1.5KE8.2AHE3_B/C is available at Aetrix Electronics and suitable for automotive power distribution modules, industrial PLC analog I/O protection, and telecom line interface designs requiring stable component supply with full AEC-Q101 traceability and RoHS compliance.
Supply support for 1.5KE8.2AHE3_B/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 1.5KE series was engineered specifically for high-power transient suppression in harsh environments, emphasizing rugged packaging, AEC-Q101 qualification, and consistent clamping performance across extended temperature ranges.
FAQ
What is the clamping voltage of the 1.5KE8.2AHE3_B/C under maximum surge conditions?
The 1.5KE8.2AHE3_B/C clamps to 12.1 V at its rated peak pulse current of 124 A (10/1000 µs waveform). This value is guaranteed per Vishay's datasheet Document Number 88301 and represents the maximum voltage seen downstream during a full 1500 W transient event. Designers must ensure downstream components tolerate this clamped voltage with appropriate margin.
Is the 1.5KE8.2AHE3_B/C qualified for automotive applications?
Yes - the HE3_B suffix confirms AEC-Q101 qualification per Vishay's ordering information note (2) in Document 88301. This includes stress testing for high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT), making 1.5KE8.2AHE3_B/C suitable for engine control units, body electronics, and ADAS power supplies.
How does the 1.5KE8.2AHE3_B/C differ from the standard 1.5KE8.2A-E3?
The 1.5KE8.2AHE3_B/C adds AEC-Q101 qualification and JESD201 Class 2 whisker resistance, whereas the 1.5KE8.2A-E3 is commercial-grade only. Both share identical electrical specs (VBR, VC, PPPM) and DO-201AD packaging, but 1.5KE8.2AHE3_B/C undergoes additional automotive reliability screening and has stricter process controls for long-life deployments.
What is the maximum leakage current of the 1.5KE8.2AHE3_B/C at its stand-off voltage?
At VWM = 7.02 V and TA = 25 °C, the 1.5KE8.2AHE3_B/C exhibits ≤200 µA maximum reverse leakage current (ID). This low leakage preserves efficiency in always-on circuits and avoids false triggering in high-impedance sensor interfaces - critical for battery-powered automotive modules.
Can the 1.5KE8.2AHE3_B/C be used in parallel to increase surge current handling?
No - paralleling 1.5KE8.2AHE3_B/C devices is not recommended due to mismatch in VBR tolerance (±5%) and dynamic impedance, which causes uneven current sharing and potential single-device failure. For higher surge ratings, select a higher-power TVS (e.g., 3KP8.2A) or implement staged protection with MOV + TVS coordination.
1.5KE8.2AHE3_B/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 130A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE8.2AHE3_B/C FAQ
1.How can I place an order for 1.5KE8.2AHE3_B/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE8.2AHE3_B/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 1.5KE8.2AHE3_B/C reliable?
The price and inventory of 1.5KE8.2AHE3_B/C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE8.2AHE3_B/C is usually 5 days.
3.What payment methods are accepted for 1.5KE8.2AHE3_B/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE8.2AHE3_B/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE8.2AHE3_B/C?
1.5KE8.2AHE3_B/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE8.2AHE3_B/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 1.5KE8.2AHE3_B/C?
For technical support, including 1.5KE8.2AHE3_B/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE8.2AHE3_B/C requirements.
6.How does Aetrix verify that 1.5KE8.2AHE3_B/C is sourced from the original manufacturer or authorized distributors?
All 1.5KE8.2AHE3_B/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 1.5KE8.2AHE3_B/C meets industry standards.
7.What is the process for return or replacement of 1.5KE8.2AHE3_B/C?
All 1.5KE8.2AHE3_B/C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE8.2AHE3_B/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 1.5KE8.2AHE3_B/C part is unused and in its original packaging.
Return procedure for 1.5KE8.2AHE3_B/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE8.2AHE3_B/C Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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