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Vishay General Semiconductor - Diodes Division 1.5KE75HE3/73
- Part No.:
- 1.5KE75HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE75HE3/73.pdf
- Description:
- TVS DIODE 60.7VWM 109VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:8,938
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Product details
Overview
1.5KE75HE3/73 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 71.3 V to 78.8 V breakdown voltage (VBR), 64.1 V maximum standoff voltage (VWM), 104 V clamping voltage at 14.6 A peak pulse current, 1500 W peak pulse power rating (10/1000 µs), and operates across -55 °C to +175 °C junction temperature range - used in automotive power supply input stages and industrial sensor interface protection.
For engineers reviewing the 1.5KE75HE3/73 datasheet, 1.5KE75HE3/73 pinout, 1.5KE75HE3/73 application, or 1.5KE75HE3/73 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), JEDEC 1.5KE package dimensions, and design-meaningful clamping behavior under transient surge conditions.
Technical Context
This unidirectional TVS diode employs a glass-passivated silicon junction optimized for fast response (<1 ns) and low incremental surge resistance. Its clamping action limits transient-induced overvoltage before sensitive downstream components like microcontrollers or MOSFET gate drivers are stressed beyond rated voltage thresholds.
The device complies with JEDEC standard 1.5KE case outline and supports 200 A non-repetitive forward surge current (IFSM) at 8.3 ms half-sine waveform. It is RoHS-compliant and qualified to AEC-Q101 for automotive-grade reliability, with matte tin-plated leads meeting J-STD-002 solderability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 71.3 V / 78.8 V - ensures reliable conduction onset above normal operating voltage but below damage threshold of protected ICs |
| VWM | 64.1 V - maximum continuous reverse working voltage without significant leakage; sets safe DC rail margin |
| VC @ IPPM | 104 V - clamped voltage during 14.6 A 10/1000 µs transient; defines worst-case stress on downstream circuitry |
| PPPM | 1500 W - peak pulse power handling capability per standardized lightning/surge waveform; enables robust front-end protection |
| IPPM | 14.6 A - maximum non-repetitive peak pulse current supported; determines minimum series impedance required for coordination |
| TJ max. | +175 °C - high-temperature operation support for under-hood automotive or industrial environments with minimal derating |
| RθJA | 75 °C/W - thermal resistance from junction to ambient; informs heatsinking needs for sustained surge duty cycles |
Pinout & Package
Package: JEDEC 1.5KE molded epoxy case (DO-201AD), axial leaded, RoHS-compliant, matte tin-plated leads. Cathode indicated by color band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point in unidirectional configuration | Connected to ground or low-side reference; defines polarity-sensitive placement in PCB layout |
| Cathode | Reverse-biased terminal during normal operation; conduction path during overvoltage | Connected to protected line (e.g., 12 V rail); color band identifies this terminal for correct orientation |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure |
| 1500 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-earth) when coordinated with upstream impedance |
| AEC-Q101 qualified | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, improving protection margin for sub-100 V logic-level devices |
| 0.01 % duty cycle repetitive rating | Allows use in systems with infrequent but high-energy surges (e.g., relay coil switching, motor commutation) |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: 12 V battery-fed ECU power input subjected to load dump (ISO 16750-2) and jump-start transients. IC Role / Device Role / Timing Role: Primary clamping device placed directly at connector entry point to limit voltage seen by DC/DC converter input stage. Use Value: Clamps to 104 V within <1 ns, preventing damage to 36 V-rated input capacitors and enabling compliance with ISO 7637-2 Pulse 5a. |
Use Scenario: 4–20 mA current loop interface exposed to ESD and inductive coupling in factory automation PLC modules. IC Role / Device Role / Timing Role: Unidirectional TVS shunting transients between signal line and local ground plane before analog front-end amplifier. Use Value: Limits induced voltage to ≤104 V during 8/20 µs surges, preserving 24 V-rated op-amp input stage integrity and maintaining measurement accuracy. |
| Telecom Line Interface Protection | Consumer Power Adapter Output Protection |
|
Use Scenario: DSL or PoE-powered Ethernet port where external cabling introduces lightning-induced surges. IC Role / Device Role / Timing Role: Secondary protection element downstream of gas discharge tube (GDT), absorbing residual energy after GDT fires. Use Value: Provides low-clamping-voltage follow-on protection with 14.6 A IPPM, ensuring PoE controller ICs remain within absolute maximum ratings during combined surge events. |
Use Scenario: 5 V/9 V USB-C adapter output rail subject to hot-plug and cable discharge events. IC Role / Device Role / Timing Role: Final-stage overvoltage clamp placed immediately before USB port connector to protect connected devices. Use Value: Responds in <1 ns to ESD events per IEC 61000-4-2, limiting voltage excursion to 104 V and preventing latch-up in portable device USB PHYs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75A | Lower PPPM (600 W), smaller SMB package (vs. DO-201AD), higher VC (123 V @ 4.9 A) | Preferred for space-constrained consumer designs; insufficient for automotive load dump without parallel staging | Select SMBJ75A only when board area is critical and surge energy is limited to IEC 61000-4-5 Level 2. |
| 1.5KE75A-E3/54 | Same electrical specs and package, but commercial-grade (non-AEC-Q101) and packaged in tape-and-reel (54) vs. bulk (73) | Acceptable for industrial or telecom applications where automotive qualification is not mandated | Choose 1.5KE75A-E3/54 for cost-sensitive production runs where AEC-Q101 is unnecessary and automated assembly is required. |
Compared with SMBJ75A and 1.5KE75A-E3/54, the 1.5KE75HE3/73 uniquely combines AEC-Q101 qualification, 1500 W surge capacity, and DO-201AD mechanical robustness - making it the only option among the three validated for under-hood automotive deployment with single-device load dump compliance.
Availability
1.5KE75HE3/73 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom line cards, and consumer power adapters requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1.5KE75HE3/73 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, rectifiers, and protection devices with emphasis on reliability, efficiency, and application-specific performance.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure modes must be mitigated without compromising signal integrity or thermal stability.
FAQ
What is the breakdown voltage range for the 1.5KE75HE3/73?
The 1.5KE75HE3/73 has a guaranteed breakdown voltage (VBR) range of 71.3 V to 78.8 V at 1.0 mA test current, measured per JEDEC standards. This range ensures consistent turn-on behavior across production lots and supports precise coordination with downstream overvoltage protection circuits. The 1.5KE75HE3/73 maintains this specification across its full operating temperature range (-55 °C to +175 °C).
Is the 1.5KE75HE3/73 AEC-Q101 qualified?
Yes, the 1.5KE75HE3/73 is explicitly AEC-Q101 qualified, as confirmed in Vishay document 88301 revision 09-Aug-2022, Note (2) under Ratings and Characteristics Curves. This qualification covers stress testing for temperature cycling, humidity bias, and high-temperature operating life - validating its suitability for automotive powertrain and chassis applications. The HE3 suffix denotes both RoHS compliance and AEC-Q101 qualification.
What is the clamping voltage of the 1.5KE75HE3/73 under surge conditions?
The 1.5KE75HE3/73 clamps to a maximum of 104 V at its rated peak pulse current of 14.6 A, using the industry-standard 10/1000 µs double-exponential waveform. This value is measured across the device terminals during transient conduction and defines the upper voltage bound imposed on protected circuitry. The 1.5KE75HE3/73 achieves this clamping performance with sub-nanosecond response time, minimizing energy transfer to downstream components.
What package type does the 1.5KE75HE3/73 use?
The 1.5KE75HE3/73 uses the JEDEC-standard 1.5KE case (DO-201AD), a molded epoxy axial-leaded package with dimensions specified in inches and millimeters in Vishay document 88301. It features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and meets UL 94 V-0 flammability rating. The cathode is marked by a color band on the body, confirming unidirectional polarity.
How does the 1.5KE75HE3/73 differ from the 1.5KE75A-E3/54?
The 1.5KE75HE3/73 and 1.5KE75A-E3/54 share identical electrical specifications and DO-201AD packaging, but differ in qualification and packaging format: the HE3/73 variant is AEC-Q101 qualified and supplied in bulk (73), while the E3/54 is commercial-grade and supplied in 13" paper tape-and-reel (54). The 1.5KE75HE3/73 is therefore designated for automotive applications requiring extended reliability validation, whereas the E3/54 targets high-volume automated assembly in non-automotive contexts.
1.5KE75HE3/73 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):
- 60.7V
- Voltage - Breakdown (Min):
- 67.5V
- Voltage - Clamping (Max) @ Ipp:
- 109V
- Current - Peak Pulse (10/1000µs):
- 13.9A
- 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
1.5KE75HE3/73 FAQ
1.How can I place an order for 1.5KE75HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE75HE3/73 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 1.5KE75HE3/73 reliable?
The price and inventory of 1.5KE75HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE75HE3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE75HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE75HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE75HE3/73?
1.5KE75HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE75HE3/73 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 1.5KE75HE3/73?
For technical support, including 1.5KE75HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE75HE3/73 requirements.
6.How does Aetrix verify that 1.5KE75HE3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE75HE3/73 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 1.5KE75HE3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE75HE3/73?
All 1.5KE75HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE75HE3/73, 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 1.5KE75HE3/73 part is unused and in its original packaging.
Return procedure for 1.5KE75HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE75HE3/73 Tags
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