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Vishay General Semiconductor - Diodes Division 1.5KE36C-E3/54
- Part No.:
- 1.5KE36C-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE36C-E3/54.pdf
- Description:
- TVS DIODE 29.1VWM 52VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:7,549
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Product details
Overview
1.5KE36C-E3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for clamping voltage transients on signal and power lines. It features a 34.2 V to 37.8 V breakdown voltage (VBR) at 1 mA, 30.8 V maximum standoff voltage (VWM), 49.9 V clamping voltage (VC) at 30.1 A peak pulse current, and 1500 W peak pulse power capability with a 10/1000 µs waveform - used in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the 1.5KE36C-E3/54 datasheet, 1.5KE36C-E3/54 pinout, 1.5KE36C-E3/54 application, or 1.5KE36C-E3/54 equivalent, this part serves as a RoHS-compliant, glass-passivated, unidirectional/bidirectional TVS device with AEC-Q101 qualification available in HE3 variants - critical for ESD and lightning transient protection in harsh environments.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering consistent clamping behavior during positive and negative transients. Its 1500 W peak pulse power rating is validated under JEDEC-standard 10/1000 µs waveform conditions with 0.01% duty cycle, and thermal performance is governed by RθJA = 75 °C/W and RθJL = 15.4 °C/W.
The device exhibits fast response time (~1 ns), low incremental surge resistance, and stable temperature coefficient of VBR (0.099 %/°C). It supports operating junction temperatures from –55 °C to +175 °C and meets UL 94 V-0 flammability requirements via molded epoxy encapsulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 34.2 V min to 37.8 V max at 1 mA - defines precise clamping initiation threshold for bidirectional surges |
| Standoff Voltage VWM | 30.8 V max - ensures no conduction during normal operation up to rated system voltage |
| Clamping Voltage VC | 49.9 V at 30.1 A IPPM - limits transient voltage seen by downstream ICs during 10/1000 µs surge |
| Peak Pulse Power PPPM | 1500 W - sustains high-energy transients without failure under standardized lightning/surge test conditions |
| Operating Temperature | –55 °C to +175 °C - enables deployment in under-hood automotive and industrial control environments |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package with matte tin-plated leads, JESD 22-B102 solderable |
| RoHS Compliance | E3 suffix - fully compliant per EU Directive 2011/65/EU, with JESD 201 Class 1A whisker resistance |
Pinout & Package
1.5KE36C-E3/54 uses the standard DO-201AD axial-leaded package (Case Style 1.5KE), with no polarity marking for bidirectional configuration - both terminals are functionally identical and interchangeable in circuit layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional transient path | Both ends serve as clamping terminals; no cathode band - enables placement without orientation check |
| Leads (matte tin plated) | Thermal and electrical interface | Supports 275 °C solder dip (10 s max); compliant with J-STD-002 and JESD 22-B102 for reliable assembly |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| 1500 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) without degradation when properly heatsinked |
| Sub-nanosecond response time | Clamps transients before sensitive logic or analog circuits experience overvoltage damage |
| AEC-Q101 qualified variant available | HE3 suffix versions meet automotive-grade stress testing for engine control and ADAS sensor interfaces |
| UL 94 V-0 molded epoxy body | Provides flame-retardant mechanical protection and environmental sealing for industrial PCB mounting |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across differential signal pair or supply rail to limit transient excursions. Use Value: Maintains signal integrity below 50 V during 100 V/50 ms load dump events, preventing latch-up in 3.3 V/5 V microcontrollers. |
Use Scenario: Shielding digital input modules from induced surges on 24 V DC field wiring in factory automation systems. IC Role / Device Role / Timing Role: Primary surge shunt on terminal block side of optocoupler isolation barrier. Use Value: Limits transient voltage to ≤49.9 V at 30.1 A, ensuring optocoupler CMTI remains intact and input logic stays within safe operating area. |
| Telecom Line Interface | Consumer Power Adapter Output |
Use Scenario: Safeguarding Ethernet PHY front-end and PoE controller ICs against lightning-induced surges on RJ45 ports. IC Role / Device Role / Timing Role: Secondary-level TVS after gas discharge tube (GDT), handling residual energy post-GDT crowbar action. Use Value: Clamps residual 1 kV/0.5 A surge to <50 V within 1 ns, preserving PHY ESD immunity and data integrity. |
Use Scenario: Suppressing switching noise and output overvoltage spikes in 12 V/5 A AC-DC adapters for smart home devices. IC Role / Device Role / Timing Role: Output-side transient limiter between secondary rectifier and bulk capacitor. Use Value: Prevents >36 V transients from reaching USB-PD controllers or downstream DC-DC regulators during startup or fault conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CA | DO-214AA package (SMB), 600 W PPPM, lower IPPM (33.3 A), same VBR range (34.2–37.8 V) | Surface-mount only; unsuitable for through-hole legacy designs or high-thermal-mass chassis mounts | Select when board space is constrained and thermal management uses copper pour instead of lead conduction |
| 1.5KE36A-E3/54 | Unidirectional version; identical VBR, VWM, VC, and PPPM but with cathode band marking and forward conduction capability | Required where DC bias exists and reverse polarity must be blocked (e.g., 24 V supply rail protection) | Choose when protecting asymmetric circuits with defined ground reference and no need for dual-polarity clamping |
Compared with SMBJ36CA and 1.5KE36A-E3/54, the 1.5KE36C-E3/54 uniquely provides through-hole bidirectional clamping with highest pulse power (1500 W) in its package class - making it optimal for ruggedized industrial and automotive harness-connected nodes where orientation flexibility and lead-based heat dissipation are essential.
Availability
1.5KE36C-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter output stages requiring stable component supply and long-lifecycle support.
Supply support for 1.5KE36C-E3/54 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 diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where robustness against lightning, ESD, and load dump is non-negotiable.
FAQ
What is the clamping voltage of the 1.5KE36C-E3/54 under a 10/1000 µs surge?
The 1.5KE36C-E3/54 clamps to a maximum of 49.9 V at 30.1 A peak pulse current (IPPM) when subjected to a 10/1000 µs waveform. This value is measured per JEDEC standards and represents the upper voltage limit imposed on protected circuitry during standardized surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the 1.5KE36C-E3/54 suitable for automotive applications?
Yes - while the base 1.5KE36C-E3/54 is commercial grade, the HE3-suffix variant (e.g., 1.5KE36CHE3_B) is AEC-Q101 qualified and approved for automotive use. The 1.5KE36C-E3/54 itself shares identical electrical and thermal characteristics, enabling design reuse across qualification tiers when paired with appropriate validation testing per vehicle subsystem requirements.
How does the bidirectional nature of the 1.5KE36C-E3/54 affect PCB layout?
The 1.5KE36C-E3/54 has no polarity marking and functions identically in either orientation, eliminating orientation-dependent placement errors during assembly. This simplifies layout for differential lines (e.g., RS-485, CAN) and AC-coupled paths, and allows direct replacement of failed units without verifying lead direction - reducing rework time and field failure risk.
What is the standoff voltage rating for the 1.5KE36C-E3/54?
The 1.5KE36C-E3/54 has a maximum working standoff voltage (VWM) of 30.8 V, meaning it remains non-conductive up to this DC or RMS voltage level. This ensures compatibility with 24 V nominal systems and provides 20% margin above typical industrial supply rails - preventing leakage current or premature conduction during normal operation.
Does the 1.5KE36C-E3/54 require a heatsink for 1500 W pulse handling?
No - the 1500 W rating applies to single, non-repetitive 10/1000 µs pulses. Continuous power dissipation is limited to 6.5 W at TL = 75 °C. For repetitive surges, thermal design must consider RθJL = 15.4 °C/W and ensure lead temperature stays below 175 °C; PCB copper land area acts as the primary heatsink, not external metal.
1.5KE36C-E3/54 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:
- -
- Bidirectional Channels:
- 1
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE36C-E3/54 FAQ
1.How can I place an order for 1.5KE36C-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE36C-E3/54 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 1.5KE36C-E3/54 reliable?
The price and inventory of 1.5KE36C-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE36C-E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE36C-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE36C-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE36C-E3/54?
1.5KE36C-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE36C-E3/54 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 1.5KE36C-E3/54?
For technical support, including 1.5KE36C-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE36C-E3/54 requirements.
6.How does Aetrix verify that 1.5KE36C-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE36C-E3/54 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 1.5KE36C-E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE36C-E3/54?
All 1.5KE36C-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE36C-E3/54, 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 1.5KE36C-E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE36C-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE36C-E3/54 Tags
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