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Vishay General Semiconductor - Diodes Division 1.5KE10A-E3/73
- Part No.:
- 1.5KE10A-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE10A-E3/73.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:3,023
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Product details
Overview
1.5KE10A-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary 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 (VC) at 103 A peak pulse current, 1500 W peak pulse power rating (10/1000 µs), and operates across –55 °C to +175 °C junction temperature range.
For engineers reviewing the 1.5KE10A-E3/73 datasheet, 1.5KE10A-E3/73 pinout, 1.5KE10A-E3/73 application, or 1.5KE10A-E3/73 equivalent, this device serves as a robust, glass-passivated, RoHS-compliant surge protector for automotive ECUs, industrial sensor interfaces, and telecom power inputs where fast clamping (<1 ns), low incremental surge resistance, and AEC-Q101-qualified reliability are required.
Technical Context
The 1.5KE10A-E3/73 implements a silicon avalanche junction structure with glass passivation for stable breakdown characteristics and high surge endurance. Its unidirectional polarity enables cathode-referenced placement on positive-rail protection paths, and its 10/1000 µs waveform-rated 1500 W pulse capability supports repetitive transient suppression under 0.01% duty cycle conditions.
Thermal performance is defined by 15.4 °C/W junction-to-lead thermal resistance and 75 °C/W junction-to-ambient resistance, enabling direct PCB-mount operation without heatsinking for short-duration transients. The device exhibits 10 µA maximum reverse leakage at VWM, 3.5 V forward voltage at 100 A, and a 0.073 %/°C temperature coefficient of VBR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 9.5 V / 10.5 V at 1.0 mA - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| VWM | 8.55 V - maximum continuous working voltage before leakage exceeds 10 µA; sets safe DC operating margin |
| VC @ IPPM | 14.5 V at 103 A - clamped voltage during 1500 W transient, limiting downstream IC stress to safe levels |
| PPPM | 1500 W (10/1000 µs) - peak surge energy handling capacity for lightning and inductive-switching events |
| IFSM | 200 A (8.3 ms half-sine) - single-pulse forward surge rating for fault-current survivability |
| TJ range | –55 °C to +175 °C - extended thermal envelope supporting under-hood automotive and industrial environments |
| Package | DO-201AD (Case Style 1.5KE) - axial-leaded, epoxy-molded package with UL 94 V-0 flammability rating |
Pinout & Package
1.5KE10A-E3/73 uses the DO-201AD axial package (Case Style 1.5KE), featuring matte tin-plated leads solderable per J-STD-002 and JESD 22-B102, with a 0.038–0.042 inch lead diameter and 0.375 inch lead length. Polarity is marked by a cathode band on the body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Current entry terminal during forward conduction or reverse standby | Connected to circuit ground or low-side reference; forms return path during clamping |
| Cathode (banded end) | Current exit terminal during avalanche clamping | Connected to protected line (e.g., +12 V rail); absorbs transient energy into ground path |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| 1500 W peak pulse power (10/1000 µs) | Handles automotive load-dump surges and industrial inductive kickback without degradation |
| <1 ns response time | Clamps transients before sensitive logic or analog circuits experience damaging overvoltage |
| AEC-Q101 qualified option available | Validated for automotive electronics per stress-test requirements (e.g., temperature cycling, HTRB) |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance and global environmental compliance mandates |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 5a (load dump). IC Role / Device Role / Timing Role: Primary shunt clamp placed between power input and chassis ground, activated within nanoseconds of overvoltage onset. Use Value: Limits rail voltage to ≤14.5 V during 103 A transients, preventing damage to MCU power supplies and CAN transceivers. |
Use Scenario: Safeguarding 4–20 mA current-loop sensor outputs from ESD and field-wiring transients in factory automation. IC Role / Device Role / Timing Role: Unidirectional TVS mounted across output terminals to divert surge current away from precision op-amps and ADC front-ends. Use Value: Maintains signal integrity by clamping induced spikes to <15 V while adding <0.5 pF capacitance to the loop. |
| Telecom DC Power Input Protection | Consumer Device USB Port Protection |
Use Scenario: Securing –48 V DC telecom rectifier outputs against lightning-induced surges on outside plant wiring. IC Role / Device Role / Timing Role: Cathode-connected to –48 V rail, anode to ground; conducts only during negative-going overvoltage events. Use Value: Withstands repeated 1500 W pulses without parameter shift, ensuring multi-year field reliability in central office equipment. |
Use Scenario: Adding secondary-level surge immunity to USB VBUS lines in smart home hubs exposed to AC adapter transients. IC Role / Device Role / Timing Role: Low-capacitance TVS placed upstream of USB controller IC, triggered before internal ESD diodes activate. Use Value: Clamps 1 kV EFT bursts to <15 V in <1 ns, preserving USB 2.0 signal rise time and preventing enumeration failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A | DO-214AA package; 1000 W PPPM; 17.0 V VC @ 58.3 A; lower surge rating and higher clamping voltage | Better suited for space-constrained PCBs but less robust for automotive load-dump events | Select SMBJ10A only when board area is critical and peak surge energy remains below 1000 W |
| 1.5KE10CA | Bidirectional variant; same VBR/VC specs but symmetric clamping for AC-coupled or floating lines | Required for protection of differential pairs, RS-485 buses, or transformer-coupled interfaces | Choose 1.5KE10CA when protecting bidirectional signals or ungrounded circuits; not interchangeable with 1.5KE10A-E3/73 |
Compared with SMBJ10A and 1.5KE10CA, the 1.5KE10A-E3/73 delivers superior 1500 W surge handling and lower 14.5 V clamping in a proven axial package-making it optimal for high-energy, unidirectional DC rail protection where reliability trumps miniaturization.
Availability
1.5KE10A-E3/73 is available at Aetrix Electronics and suitable for automotive power systems, industrial sensor nodes, telecom infrastructure, and consumer power adapters requiring stable component supply, long-lifecycle support, and traceable RoHS-compliant sourcing.
Supply support for 1.5KE10A-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, power efficiency, and automotive-grade qualification.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments-targeting automotive, industrial, and telecom applications where failure due to voltage surges must be eliminated.
FAQ
What is the breakdown voltage tolerance for 1.5KE10A-E3/73?
The 1.5KE10A-E3/73 has a guaranteed breakdown voltage range of 9.5 V to 10.5 V at 1.0 mA test current, corresponding to ±5.3% tolerance about the nominal 10 V rating. This tight VBR window ensures consistent clamping behavior across production lots and temperature extremes from –55 °C to +175 °C.
Does 1.5KE10A-E3/73 meet automotive qualification standards?
The base 1.5KE10A-E3/73 is commercial-grade; however, the AEC-Q101-qualified variant is designated 1.5KE10AHE3_B (with "HE3" and revision code). That version undergoes full stress testing per AEC-Q101 including HTGB, HTRB, and temperature cycling-while the 1.5KE10A-E3/73 itself meets RoHS, JESD 201 Class 1A whisker, and UL 94 V-0 requirements.
How does the clamping voltage of 1.5KE10A-E3/73 compare to similar 10 V TVS diodes?
At its rated 103 A peak pulse current (10/1000 µs), the 1.5KE10A-E3/73 clamps to 14.5 V-lower than SMBJ10A (17.0 V) and competitive with P6KE10A (14.5 V). This low VC minimizes stress on downstream 12 V-rated ICs and reflects optimized junction design and low incremental surge resistance.
Can 1.5KE10A-E3/73 be used in bidirectional signal protection?
No-1.5KE10A-E3/73 is strictly unidirectional and must be installed with the cathode band toward the protected line. For bidirectional protection (e.g., RS-485, AC lines), use the pin-compatible 1.5KE10CA variant, which provides symmetrical clamping in both polarities and shares identical VBR, VC, and PPPM ratings.
What is the thermal resistance profile of 1.5KE10A-E3/73?
The 1.5KE10A-E3/73 has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W and junction-to-ambient (RθJA) of 75 °C/W. This allows direct PCB mounting with minimal copper pour for transient-only duty cycles; sustained power dissipation requires external heatsinking or derating per Fig. 5 in the datasheet.
1.5KE10A-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8.55V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 103A
- 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
1.5KE10A-E3/73 FAQ
1.How can I place an order for 1.5KE10A-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE10A-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 1.5KE10A-E3/73 reliable?
The price and inventory of 1.5KE10A-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 1.5KE10A-E3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE10A-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE10A-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE10A-E3/73?
1.5KE10A-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE10A-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 1.5KE10A-E3/73?
For technical support, including 1.5KE10A-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE10A-E3/73 requirements.
6.How does Aetrix verify that 1.5KE10A-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE10A-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 1.5KE10A-E3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE10A-E3/73?
All 1.5KE10A-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE10A-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 1.5KE10A-E3/73 part is unused and in its original packaging.
Return procedure for 1.5KE10A-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE10A-E3/73 Tags
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