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Vishay General Semiconductor - Diodes Division 1.5KE36HE3/54
- Part No.:
- 1.5KE36HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE36HE3/54.pdf
- Description:
- TVS DIODE 29.1VWM 52VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,919
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Product details
Overview
1.5KE36HE3/54 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 34.2 V to 37.8 V breakdown voltage (VBR), 30.8 V maximum standoff voltage (VWM), 49.9 V clamping voltage at 30.1 A peak pulse current, 1500 W peak pulse power rating (10/1000 µs), and operates across –55 °C to +175 °C junction temperature. It is used to protect MOSFETs, ICs, and sensor interfaces against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1.5KE36HE3/54 datasheet, 1.5KE36HE3/54 pinout, 1.5KE36HE3/54 application, or 1.5KE36HE3/54 equivalent, this part delivers verified AEC-Q101 qualification, RoHS-compliant matte tin-plated leads, JESD 201 Class 2 whisker resistance, and UL 94 V-0 molded epoxy packaging - critical for automotive, industrial, and telecom surge protection design-in.
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 behavior is characterized by a tightly controlled VBR tolerance (±5 %), 0.099 %/°C temperature coefficient, and stable performance under repetitive 10/1000 µs transients at 0.01 % duty cycle.
The device sustains 200 A non-repetitive forward surge current (8.3 ms half-sine), dissipates 6.5 W on infinite heatsink at TL = 75 °C, and exhibits RθJA = 75 °C/W and RθJL = 15.4 °C/W thermal resistance - enabling robust thermal management in high-density PCB layouts without active cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 34.2 V / 37.8 V - Ensures reliable conduction onset above normal operating voltage while avoiding false triggering |
| VWM | 30.8 V - Maximum continuous reverse working voltage before leakage exceeds 1 µA |
| VC @ IPPM | 49.9 V at 30.1 A - Clamped voltage during 1500 W transient, limiting downstream component stress |
| PPPM | 1500 W - Peak pulse power handling per 10/1000 µs waveform, suitable for IEC 61000-4-5 Level 4 compliance |
| IFSM | 200 A - Withstands single 8.3 ms half-sine surge, protecting against motor switch-off or relay bounce events |
| TJ range | –55 °C to +175 °C - Enables deployment in under-hood automotive, industrial drives, and outdoor telecom equipment |
| Package | Case Style 1.5KE - Axial-leaded DO-201AD package with 0.375" lead length, UL 94 V-0 rated epoxy body |
Pinout & Package
1.5KE36HE3/54 uses a two-terminal axial-leaded DO-201AD (Case Style 1.5KE) package. 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 | Low-side reference terminal | Connected to circuit ground or lowest potential node; defines clamping path to GND |
| Cathode | High-side transient capture terminal | Connected to protected line (e.g., 24 V rail or sensor input); absorbs positive-going surges |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Glass passivated junction | Ensures long-term reliability and stable VBR under thermal cycling and humidity exposure |
| 1500 W peak pulse power | Meets IEC 61000-4-5 surge immunity requirements for industrial and telecom infrastructure |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth in high-reliability assemblies, supporting >10-year field life |
| UL 94 V-0 flammability rating | Mold compound self-extinguishes within 10 seconds, satisfying safety-critical enclosure requirements |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply lines in engine control modules from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and local regulator input to clamp positive surges up to 1500 W. Use Value: Limits voltage excursion to ≤49.9 V during 30.1 A transients, preventing damage to downstream LDOs and microcontrollers. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors in PLC I/O modules from ESD and cable discharge events. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt fast-rising transients before reaching precision amplifier inputs. Use Value: Sub-nanosecond response ensures clamping occurs before sensitive op-amps saturate or latch up. |
| Telecom DC Feeder Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding PoE-powered remote radio units connected via outdoor cabling exposed to induced lightning. IC Role / Device Role / Timing Role: Primary-level TVS on DC input stage, coordinated with secondary GDT or MOV for staged surge suppression. Use Value: 175 °C max junction temperature enables operation in sealed outdoor enclosures without derating. |
Use Scenario: Suppressing back-EMF spikes generated by brushed DC motors in washing machine control boards. IC Role / Device Role / Timing Role: Mounted across motor terminals to absorb inductive kickback during PWM commutation. Use Value: 200 A IFSM rating withstands repeated 8.3 ms surges from motor startup/shutdown cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A-E3/52 | Lower PPPM (600 W), smaller SMB package (surface-mount), VC = 58.1 V @ 10.3 A | Better suited for space-constrained consumer electronics; not AEC-Q101 qualified | Select when board area is limited and automotive qualification is unnecessary |
| 1.5KE36A-E3/54 | Same electrical specs but commercial-grade (non-AEC-Q101), identical DO-201AD package and pinout | Approved for industrial/commercial use only; lacks automotive reliability validation | Choose for cost-sensitive non-automotive designs where AEC-Q101 is not mandated |
Compared with 1.5KE36HE3/54, SMBJ36A-E3/52 trades peak power and qualification for footprint reduction, while 1.5KE36A-E3/54 offers identical protection performance without automotive-grade process controls - enabling direct substitution where qualification is not required.
Availability
1.5KE36HE3/54 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power feeders, and appliance motor controllers requiring stable component supply with full traceability and long-lifecycle support.
Supply support for 1.5KE36HE3/54 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, rectifiers, and protection devices for demanding environments.
The 1.5KE series was engineered specifically for high-energy transient suppression in automotive, industrial, and telecom systems - balancing ruggedness, precision clamping, and qualification-grade manufacturing.
FAQ
What is the clamping voltage of the 1.5KE36HE3/54 under maximum surge conditions?
The 1.5KE36HE3/54 clamps to 49.9 V at its rated peak pulse current of 30.1 A (10/1000 µs waveform). This value is measured per JEDEC standard test conditions and represents the maximum voltage seen by downstream components during a full 1500 W transient event. The 1.5KE36HE3/54 maintains this clamping performance across its full operating temperature range.
Is the 1.5KE36HE3/54 suitable for automotive applications?
Yes, the 1.5KE36HE3/54 is AEC-Q101 qualified and explicitly listed in Vishay's qualified parts list for the 1.5KE6.8AHE3_B to 1.5KE220AHE3_B family. Its construction - including glass passivation, JESD 201 Class 2 whisker resistance, and –55 °C to +175 °C operation - meets automotive reliability requirements for engine bay and chassis-mounted electronics.
What does the "HE3" suffix indicate in 1.5KE36HE3/54?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. The "E3" base indicates matte tin plating meeting J-STD-002 solderability standards, while "H" signals AEC-Q101 compliance, and the trailing "/54" specifies packaging in 13" paper tape and reel with 1400 units per reel.
How does the 1.5KE36HE3/54 differ from the standard 1.5KE36A-E3/54?
The 1.5KE36HE3/54 adds AEC-Q101 qualification, JESD 201 Class 2 whisker resistance, and enhanced process controls versus the commercial-grade 1.5KE36A-E3/54. Electrically and physically identical, the HE3 variant undergoes additional reliability testing - making it mandatory for automotive use but optional for industrial applications where qualification is not required.
Can the 1.5KE36HE3/54 be used in bidirectional configurations?
No, the 1.5KE36HE3/54 is unidirectional only. Bidirectional variants in the same family use the "CA" suffix (e.g., 1.5KE36CA). Using a unidirectional device like the 1.5KE36HE3/54 in a bidirectional application would leave negative-going transients unprotected and may cause catastrophic failure due to reverse conduction beyond rated limits.
1.5KE36HE3/54 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 29.1V
- Voltage - Breakdown (Min):
- 32.4V
- Voltage - Clamping (Max) @ Ipp:
- 52V
- Current - Peak Pulse (10/1000µs):
- 28.8A
- 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
1.5KE36HE3/54 FAQ
1.How can I place an order for 1.5KE36HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE36HE3/54 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 1.5KE36HE3/54 reliable?
The price and inventory of 1.5KE36HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE36HE3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE36HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE36HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE36HE3/54?
1.5KE36HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE36HE3/54 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 1.5KE36HE3/54?
For technical support, including 1.5KE36HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE36HE3/54 requirements.
6.How does Aetrix verify that 1.5KE36HE3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE36HE3/54 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 1.5KE36HE3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE36HE3/54?
All 1.5KE36HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE36HE3/54, 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 1.5KE36HE3/54 part is unused and in its original packaging.
Return procedure for 1.5KE36HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE36HE3/54 Tags
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