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Vishay General Semiconductor - Diodes Division 1.5KE10-E3/73
- Part No.:
- 1.5KE10-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE10-E3/73.pdf
- Description:
- TVS DIODE 8.1VWM 15VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:7,941
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Product details
Overview
1.5KE10-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 9.5 V minimum breakdown voltage (VBR), 8.55 V standoff voltage (VWM), 14.5 V clamping voltage at 10.3 A peak pulse current, 1500 W peak pulse power rating (10/1000 µs), 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 1.5KE10-E3/73 datasheet, 1.5KE10-E3/73 pinout, 1.5KE10-E3/73 application, or 1.5KE10-E3/73 equivalent, this page delivers verified electrical parameters, JEDEC-standard 1.5KE package details, thermal derating behavior, clamping performance under surge conditions, and direct alternatives with documented parameter differences for ESD and lightning transient hardening.
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 begins at 9.5 V (min VBR) and limits transient voltages to ≤14.5 V at 10.3 A (IPPM), ensuring safe operation of downstream MOSFETs and ICs during 10/1000 µs surges.
The device complies with JEDEC DO-201AD mechanical standards and supports 200 A non-repetitive forward surge current (IFSM). Thermal resistance is 15.4 °C/W (junction-to-lead), enabling reliable power dissipation up to 6.5 W on infinite heatsink at TL = 75 °C - critical for sustained surge duty cycles in automotive engine control units.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min) | 9.5 V - guaranteed breakdown initiation threshold under 1.0 mA test current; defines earliest clamping onset point |
| VWM | 8.55 V - maximum continuous reverse operating voltage; ensures no conduction during normal 9 V rail operation |
| VC @ IPPM | 14.5 V at 10.3 A - peak clamped voltage during 1500 W transient; determines protected circuit's maximum stress level |
| PPPM | 1500 W - peak pulse power handling per 10/1000 µs waveform; validates robustness against IEC 61000-4-5 Level 4 surges |
| IFSM | 200 A - single half-sine surge current rating (8.3 ms); supports protection of 12 V automotive loads during load dump |
| TJ max | +175 °C - maximum junction temperature; enables under-hood deployment without thermal shutdown |
| RθJL | 15.4 °C/W - junction-to-lead thermal resistance; allows accurate PCB copper pour sizing for thermal management |
Pinout & Package
Package: JEDEC DO-201AD (Case Style 1.5KE), molded epoxy body with matte tin-plated leads; cathode indicated by color band; RoHS-compliant per JESD 201 Class 1A whisker test (E3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to system ground or low-side return path; must handle 200 A surge without bond wire failure |
| Cathode | Current exit terminal during reverse-biased clamping | Connected to protected line (e.g., 12 V rail); color band identifies this terminal for correct PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance (±5%) and long-term reliability under thermal cycling in automotive environments |
| 1500 W peak pulse power (10/1000 µs) | Meets IEC 61000-4-5 surge immunity requirements for industrial and automotive electronics without external heat sinking |
| Sub-nanosecond response time | Clamps transients before sensitive ICs experience overvoltage damage - critical for protecting CAN transceivers and microcontrollers |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ESD or inductive switch-off), reducing stress on downstream components |
| AEC-Q101 qualification option (HE3 suffix) | Validates suitability for automotive powertrain and chassis applications where component qualification is mandatory |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Guarding |
|---|---|
Use Scenario: 12 V battery feed to engine control unit exposed to load dump surges up to 120 V. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC/DC converter input stage. Use Value: Limits transient voltage to ≤14.5 V at 10.3 A, preventing MOSFET gate oxide rupture and regulator latch-up. |
Use Scenario: 4–20 mA analog sensor loop in factory automation subject to cable-induced lightning surges. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS (with series resistor) shunting surge energy to ground. Use Value: Clamps induced transients within 1 ns, preserving signal integrity and avoiding ADC saturation or op-amp damage. |
| Consumer Power Adapter Output Stage | Telecom DC Power Distribution |
Use Scenario: 5 V/9 V USB-C PD adapter output subjected to hot-plug and capacitive load switching transients. IC Role / Device Role / Timing Role: Final-stage transient suppressor between secondary-side rectifier and output capacitor. Use Value: Absorbs 1500 W pulses without degradation, maintaining regulated output and preventing downstream SoC brownouts. |
Use Scenario: -48 V telecom power shelf feeding multiple line cards with shared return paths. IC Role / Device Role / Timing Role: Unidirectional TVS on each card's input rail to localize surge propagation. Use Value: Withstands repetitive 10/1000 µs surges at 0.01% duty cycle, ensuring multi-year field reliability in central office environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A | Lower PPPM (600 W), smaller SMB package (DO-214AA), 10.0 V VBR min, 17.0 V VC @ 35.3 A | Targeted at space-constrained consumer electronics; insufficient for automotive load dump per ISO 7637-2 Pulse 5a | Select 1.5KE10-E3/73 when 1500 W surge handling and DO-201AD mechanical robustness are required. |
| 1.5SMC10A | Same PPPM (1500 W), SMC package (DO-214AB), 9.5 V VBR min, 16.7 V VC @ 89.8 A, higher RθJA (60 °C/W) | Better suited for surface-mount assembly; lower clamping efficiency than 1.5KE10-E3/73 due to 2.2 V higher VC | Choose 1.5KE10-E3/73 for through-hole mounting, tighter clamping, and superior thermal performance via lead conduction. |
Compared with SMBJ10A and 1.5SMC10A, the 1.5KE10-E3/73 delivers superior clamping voltage (14.5 V vs. ≥16.7 V), lower thermal resistance (15.4 °C/W vs. ≥60 °C/W), and proven mechanical ruggedness in high-vibration environments - making it the preferred choice for mission-critical automotive and industrial transient suppression where voltage margin and thermal stability are design-critical.
Availability
1.5KE10-E3/73 is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, telecom DC shelves, and consumer adapter outputs requiring stable component supply across extended temperature ranges and high-reliability surge events.
Supply support for 1.5KE10-E3/73 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, precision, and high-power handling.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where failure modes include lightning-induced surges, inductive switching spikes, and load dump events.
FAQ
What is the breakdown voltage tolerance for 1.5KE10-E3/73?
The 1.5KE10-E3/73 has a specified breakdown voltage range of 9.5 V to 10.5 V at 1.0 mA test current (VBR min/max), corresponding to ±5% tolerance around the nominal 10 V rating. This tight tolerance ensures consistent clamping onset across production lots and supports predictable overvoltage protection design margins in safety-critical systems.
Does 1.5KE10-E3/73 meet AEC-Q101 qualification?
No - the 1.5KE10-E3/73 is the commercial-grade variant with E3 suffix (RoHS-compliant, JESD 201 Class 1A whisker tested). AEC-Q101 qualification is only available for variants with HE3 suffix (e.g., 1.5KE10AHE3_B), which undergo additional stress testing for automotive use. Engineers requiring automotive qualification must specify the HE3 version explicitly.
What is the maximum clamping voltage of 1.5KE10-E3/73 under surge conditions?
The 1.5KE10-E3/73 clamps to a maximum of 14.5 V when subjected to its rated peak pulse current of 10.3 A (IPPM) using the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and represents the worst-case voltage seen by downstream components during a full-power transient event.
Can 1.5KE10-E3/73 be used in bidirectional configurations?
No - the 1.5KE10-E3/73 is a unidirectional TVS diode, identifiable by its cathode band marking. Bidirectional operation requires the CA-suffixed variant (e.g., 1.5KE10CA). Using 1.5KE10-E3/73 in reverse-biased AC applications would result in forward conduction and potential failure; always match polarity to circuit topology.
How does thermal resistance affect PCB layout for 1.5KE10-E3/73?
With a junction-to-lead thermal resistance (RθJL) of 15.4 °C/W, the 1.5KE10-E3/73 relies heavily on copper mass connected to its leads for heat dissipation. Designers must use ≥200 mil wide traces or thermal pads tied to internal ground planes on both anode and cathode leads to maintain TJ < 175 °C during repetitive surges - especially critical in enclosed automotive enclosures.
1.5KE10-E3/73 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8.1V
- Voltage - Breakdown (Min):
- 9V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 100A
- 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
1.5KE10-E3/73 FAQ
1.How can I place an order for 1.5KE10-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE10-E3/73 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 1.5KE10-E3/73 reliable?
The price and inventory of 1.5KE10-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE10-E3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE10-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE10-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE10-E3/73?
1.5KE10-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE10-E3/73 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 1.5KE10-E3/73?
For technical support, including 1.5KE10-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE10-E3/73 requirements.
6.How does Aetrix verify that 1.5KE10-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE10-E3/73 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 1.5KE10-E3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE10-E3/73?
All 1.5KE10-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE10-E3/73, 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 1.5KE10-E3/73 part is unused and in its original packaging.
Return procedure for 1.5KE10-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE10-E3/73 Tags
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