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Vishay General Semiconductor - Diodes Division 1.5KE8.2CHE3/73
- Part No.:
- 1.5KE8.2CHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE8.2CHE3/73.pdf
- Description:
- TVS DIODE 6.63VWM 12.5VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:8,131
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Product details
Overview
1.5KE8.2CHE3/73 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 8.2 V breakdown voltage (VBR = 7.79–8.61 V 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 - deployed in automotive body control modules and industrial sensor interfaces.
For engineers reviewing the 1.5KE8.2CHE3/73 datasheet, 1.5KE8.2CHE3/73 pinout, 1.5KE8.2CHE3/73 application, or 1.5KE8.2CHE3/73 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, clamping behavior under surge conditions, and AEC-Q101-qualified alternatives for automotive-grade ESD and lightning transient suppression.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse-biased voltage exceeds VBR, it avalanches into low-impedance conduction to divert surge energy away from downstream ICs. Its glass-passivated junction ensures stable breakdown and low leakage (<200 µA at VWM), while the 10/1000 µs waveform rating reflects standardized lightning-surge immunity testing per IEC 61000-4-5.
The device supports unidirectional polarity only (cathode marked), with 3.5 V forward voltage at 100 A surge and thermal resistance of 15.4 °C/W (junction-to-lead), enabling direct PCB mounting without heatsink for short-duration transients up to 200 A IFSM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V / 8.61 V at 10 mA - defines precise avalanche onset threshold for reliable overvoltage triggering |
| VWM | 7.02 V - maximum continuous reverse operating voltage before leakage rises above 200 µA |
| VC @ IPPM | 12.1 V at 124 A - clamping voltage during 1500 W surge, limiting protected circuit stress |
| PPPM | 1500 W - peak pulse power handling with 10/1000 µs waveform, validated for lightning-level transients |
| IFSM | 200 A - non-repetitive forward surge current rating (8.3 ms half-sine), critical for inductive switch-off events |
| TJ max | +175 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| Package | JEDEC DO-201AD (1.5KE) - axial-leaded, epoxy-molded case rated UL 94 V-0, compatible with wave soldering |
Pinout & Package
Package: DO-201AD (Case Style 1.5KE), axial-leaded, epoxy-molded body with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102. Cathode indicated by color band on lead end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional clamp configuration |
| Cathode | Avalanche conduction terminal | Marked end; connected to protected line (e.g., 5 V rail or CAN H) to clamp positive transients to VC |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance (±5 %) and low leakage (<200 µA) across temperature and lifetime |
| 1500 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) without degradation in single-event testing |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Low incremental surge resistance | Enables tight VC – VBR margin (ΔV = 4.31 V), minimizing voltage overshoot during fast transients |
| UL 94 V-0 molding compound | Prevents flame propagation in high-energy fault conditions, meeting automotive and industrial safety standards |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protecting microcontroller GPIOs and LIN bus transceivers from load-dump and jump-start transients in vehicle door modules. IC Role / Device Role: Unidirectional shunt TVS placed between LIN line and chassis ground to clamp +100 V spikes to ≤12.1 V. Use Value: Prevents latch-up or gate oxide damage in 3.3 V/5 V interface ICs during ISO 16750-2 pulse 5a/b events. | Use Scenario: Safeguarding 24 V digital input circuits in programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role: Primary overvoltage clamp on input terminal block, upstream of optocoupler or Schmitt trigger input stage. Use Value: Limits transient voltage to <12.1 V at 124 A, ensuring input stage remains within absolute maximum ratings during 1 kV/500 A surge tests. |
| Consumer Power Adapter Output | Telecom Ethernet Surge Protection |
Use Scenario: Secondary-side output rail protection in AC/DC adapters against capacitor discharge and hot-plug transients. IC Role / Device Role: Unidirectional TVS tied between +5 V output and GND to suppress overshoot during dynamic load changes. Use Value: Clamps output to ≤12.1 V during 1500 W surges, preventing damage to USB-PD controllers and downstream USB ports. | Use Scenario: Common-mode surge suppression on PoE-powered Ethernet ports subjected to induced lightning on outdoor cabling. IC Role / Device Role: Paired unidirectional 1.5KE8.2CHE3/73 devices on each data pair (e.g., TX+/TX− to GND) in discrete TVS array configuration. Use Value: Provides sub-13 V clamping at 124 A, maintaining PHY IC integrity during IEC 61000-4-5 10/700 µs common-mode tests. |
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 VBR, 12.0 V VC @ 108 A, 600 W PPPM | Lower power rating limits use to sub-600 W surge environments; surface-mount only | Select when board space is constrained and surge energy is ≤600 W (e.g., consumer IoT endpoints) |
| 1.5KE8.2AHE3_A | Same 1.5KE package and electrical specs, but commercial-grade (non-AEC-Q101 qualified) | Not validated for automotive temperature cycling or humidity testing per AEC-Q101 | Choose for cost-sensitive industrial or telecom applications where automotive qualification is not required |
Compared with 1.5KE8.2CHE3/73, SMBJ8.0A offers smaller footprint but sacrifices 60 % peak power handling and automotive qualification; 1.5KE8.2AHE3_A matches form/fit/function but lacks AEC-Q101 validation, making it unsuitable for automotive OEM designs requiring certified reliability.
Availability
1.5KE8.2CHE3/73 is available at Aetrix Electronics and suitable for automotive electronics, industrial PLCs, and telecom power systems requiring stable component supply with AEC-Q101 compliance and long-term lifecycle support.
Supply support for 1.5KE8.2CHE3/73 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 automotive-grade qualification.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure where robustness against lightning, ESD, and inductive switching surges is mandatory.
FAQ
What is the breakdown voltage tolerance for 1.5KE8.2CHE3/73?
The 1.5KE8.2CHE3/73 has a specified breakdown voltage range of 7.79 V to 8.61 V at 10 mA test current, representing a ±5.2 % tolerance about the nominal 8.2 V rating. This tight VBR window ensures consistent clamping onset across production lots and enables predictable system-level overvoltage protection design. The value is measured per JEDEC standard JESD201 and confirmed in Vishay's 88301 datasheet revision 09-Aug-2022.
Is 1.5KE8.2CHE3/73 RoHS compliant and halogen-free?
Yes, 1.5KE8.2CHE3/73 is RoHS compliant (per EU Directive 2011/65/EU) and meets Vishay's material categorization standard for green products. The "E3" suffix denotes RoHS-compliant matte tin plating and UL 94 V-0 epoxy molding compound with no added halogens. Full compliance documentation, including substance declarations and test reports, is available through Vishay's official portal under document number 99912.
Can 1.5KE8.2CHE3/73 be used in bidirectional configurations?
No, 1.5KE8.2CHE3/73 is a unidirectional TVS diode and must be installed with cathode toward the protected line. Bidirectional variants use the "CA" suffix (e.g., 1.5KE8.2CA). Attempting to use 1.5KE8.2CHE3/73 for bidirectional protection results in forward conduction during negative transients, causing failure. For symmetric surge protection, select 1.5KE8.2CAHE3_B or equivalent AEC-Q101-qualified bidirectional part.
What is the maximum clamping voltage of 1.5KE8.2CHE3/73 under surge conditions?
The maximum clamping voltage (VC) of 1.5KE8.2CHE3/73 is 12.1 V at 124 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is guaranteed per datasheet specification and represents the upper limit of voltage seen by downstream circuitry during worst-case surge events. It is derived from the device's low dynamic impedance and validated across temperature and lot variations.
Does 1.5KE8.2CHE3/73 require derating at elevated ambient temperatures?
Yes, 1.5KE8.2CHE3/73 requires thermal derating above 25 °C ambient. Its power dissipation (PD) drops linearly from 6.5 W at TL = 75 °C, with full derating to zero at 175 °C junction temperature. Derating curves are provided in Figure 5 of the 88301 datasheet. Designers must calculate junction temperature using RθJL = 15.4 °C/W and ensure TJ ≤ 175 °C under worst-case surge repetition and ambient conditions.
1.5KE8.2CHE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE8.2CHE3/73 FAQ
1.How can I place an order for 1.5KE8.2CHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE8.2CHE3/73 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 1.5KE8.2CHE3/73 reliable?
The price and inventory of 1.5KE8.2CHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE8.2CHE3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE8.2CHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE8.2CHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE8.2CHE3/73?
1.5KE8.2CHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE8.2CHE3/73 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 1.5KE8.2CHE3/73?
For technical support, including 1.5KE8.2CHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE8.2CHE3/73 requirements.
6.How does Aetrix verify that 1.5KE8.2CHE3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE8.2CHE3/73 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 1.5KE8.2CHE3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE8.2CHE3/73?
All 1.5KE8.2CHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE8.2CHE3/73, 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 1.5KE8.2CHE3/73 part is unused and in its original packaging.
Return procedure for 1.5KE8.2CHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE8.2CHE3/73 Tags
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