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Vishay General Semiconductor - Diodes Division 1.5KE13A-E3/51
- Part No.:
- 1.5KE13A-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE13A-E3/51.pdf
- Description:
- TVS DIODE 11.1VWM 18.2VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:9,042
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Product details
Overview
1.5KE13A-E3/51 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection of sensitive electronics. It features a 12.4 V to 13.7 V breakdown voltage (VBR) at 1.0 mA test current, 11.1 V maximum standoff voltage (VWM), 18.2 V clamping voltage (VC) at 82.4 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used in DC power rail and signal line protection for industrial control and automotive ECUs.
For engineers reviewing the 1.5KE13A-E3/51 datasheet, 1.5KE13A-E3/51 pinout, 1.5KE13A-E3/51 application, or 1.5KE13A-E3/51 equivalent, this page delivers verified electrical parameters, JEDEC-standard DO-201AE package details, thermal derating behavior, clamping performance under surge conditions, and direct alternatives for circuit redesign or supply continuity planning.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: when transient voltage exceeds VBR, it avalanches into low-impedance conduction to divert surge current away from downstream components. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<5.0 µA at VWM).
It supports 10/1000 µs waveform compliance per R.E.A. standards, exhibits 0.081 %/°C temperature coefficient of VBR, and maintains clamping integrity up to 175 °C junction temperature - enabling use in under-hood automotive environments and industrial power supplies where thermal stability is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 12.4 V to 13.7 V at IT = 1.0 mA - defines precise avalanche initiation threshold for reliable overvoltage detection |
| VWM | 11.1 V maximum - ensures no conduction during normal 12 V system operation, preventing false triggering |
| VC @ IPPM | 18.2 V at 82.4 A - limits protected circuit voltage to safe level during 1500 W transient events |
| PPPM | 1500 W - sustains single 10/1000 µs surges without degradation, meeting IEC 61000-4-5 Level 4 requirements |
| IFSM | 200 A peak forward surge (8.3 ms half-sine) - handles repetitive load dump transients in automotive 12 V systems |
| TJ range | –55 °C to +175 °C - supports operation in extreme ambient conditions without parameter drift or failure |
| RθJA | 75 °C/W - enables thermal design with standard PCB copper area; RθJL = 15.4 °C/W confirms robust lead-to-junction heat transfer |
Pinout & Package
Package: DO-201AE (JEDEC standard), molded epoxy body with matte tin-plated leads; RoHS-compliant, commercial grade (E3 suffix); case meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or return path; establishes reference for unidirectional clamping action |
| Cathode | High-side transient input | Marked with color band; connects to protected line (e.g., 12 V rail or CAN-H); conducts avalanche current to anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and low leakage (<5.0 µA) across temperature and lifetime |
| 1500 W peak pulse power (10/1000 µs) | Protects against severe lightning-induced surges and load dump events without sacrificial failure |
| 0.081 %/°C VBR tempco | Minimizes threshold shift over –55 °C to +175 °C, critical for automotive under-hood reliability |
| Solder dip rated 275 °C / 10 s | Withstands standard wave soldering profiles without parametric shift or bond wire damage |
| UL 94 V-0 molding compound | Prevents flame propagation in fault conditions, satisfying safety requirements for industrial enclosures |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V battery line in engine control unit exposed to ISO 7637-2 load dump pulses up to 60 V. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed between battery rail and regulator input to limit voltage excursion. Use Value: Clamps to ≤18.2 V within nanoseconds, preventing LDO or MCU damage while surviving 200 A surge peaks. |
Use Scenario: 24 V analog sensor output line in PLC module subject to ESD and inductive switching noise. IC Role / Device Role / Timing Role: Point-of-entry TVS on signal line before op-amp buffer stage. Use Value: Sub-1 ns response time suppresses transients before they reach precision front-end circuitry, preserving measurement accuracy. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: 48 V PoE-powered network switch input subjected to IEC 61000-4-5 surge testing. IC Role / Device Role / Timing Role: Primary overvoltage clamp upstream of DC-DC converter. Use Value: 1500 W rating absorbs full 2 kV/1 kA combination wave without derating, eliminating need for multi-stage protection. |
Use Scenario: Brushed DC motor controller board experiencing back-EMF spikes during commutation. IC Role / Device Role / Timing Role: Flyback suppression device across motor terminals. Use Value: Low incremental surge resistance minimizes clamping overshoot, reducing MOSFET stress and improving system MTBF. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13A | DO-214AA package (smaller footprint), 13.3 V VBR, 200 W PPPM (vs. 1500 W) | Limited to lower-energy transients; unsuitable for load dump or lightning-level surges | Select SMBJ13A only for space-constrained consumer designs with <500 W surge exposure. |
| 1.5KE13CA | Bidirectional variant (same VBR/VC specs), symmetric clamping for AC or differential lines | Required for RS-485, CAN bus, or AC-coupled signal protection where polarity reversal occurs | Choose 1.5KE13CA when protecting bidirectional interfaces; 1.5KE13A-E3/51 is optimal for unidirectional DC rails. |
Compared with SMBJ13A, 1.5KE13A-E3/51 delivers 7.5× higher surge power handling and DO-201AE mechanical robustness; versus 1.5KE13CA, it offers lower capacitance and optimized unidirectional leakage for DC bias applications - making it the preferred choice for high-reliability 12 V/24 V power rail protection.
Availability
1.5KE13A-E3/51 is available at Aetrix Electronics and suitable for automotive ECU power conditioning, industrial PLC I/O protection, and telecom DC input surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for 1.5KE13A-E3/51 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, MOSFETs, and passive components for demanding industrial and automotive applications.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments - delivering consistent 1500 W clamping performance with JEDEC-standard DO-201AE ruggedness and AEC-Q101 qualification options.
FAQ
What is the breakdown voltage tolerance of the 1.5KE13A-E3/51?
The 1.5KE13A-E3/51 has a specified breakdown voltage range of 12.4 V to 13.7 V at 1.0 mA test current, representing ±5.8% tolerance around the nominal 13 V rating. This tight VBR window ensures predictable clamping onset across production lots and temperature extremes, critical for protecting 12 V logic rails without nuisance triggering.
Does the 1.5KE13A-E3/51 meet automotive qualification standards?
The base 1.5KE13A-E3/51 is commercial-grade and not AEC-Q101 qualified; however, the variant 1.5KE13AHE3_B (same electrical specs, AEC-Q101 certified) is available. For automotive under-hood applications requiring qualification, engineers must specify the HE3 suffix version - the 1.5KE13A-E3/51 itself is intended for industrial and telecom use where AEC-Q101 is not mandated.
How does the 1.5KE13A-E3/51 compare to SMAJ13A in surge handling capability?
The 1.5KE13A-E3/51 delivers 1500 W peak pulse power (10/1000 µs), whereas SMAJ13A is rated for only 400 W. This 3.75× higher energy capacity allows the 1.5KE13A-E3/51 to survive ISO 7637-2 load dump pulses and IEC 61000-4-5 surges that would degrade or destroy the smaller SMAJ13A - making it essential for high-reliability power rail protection.
What is the maximum operating temperature for the 1.5KE13A-E3/51?
The 1.5KE13A-E3/51 has a maximum junction temperature (TJ) of +175 °C and operates from –55 °C to +175 °C. Its thermal resistance RθJA is 75 °C/W, meaning at 6.5 W steady-state dissipation it reaches ~500 °C above ambient - but since it's rated for transient (not continuous) power, actual junction temperature remains safe under pulsed conditions defined in Fig. 2 of the datasheet.
Can the 1.5KE13A-E3/51 be used in parallel for higher surge current handling?
Yes, multiple 1.5KE13A-E3/51 devices can be paralleled to increase total IPPM, but matching VBR (12.4–13.7 V) is critical to ensure balanced current sharing. Uneven distribution may cause one device to absorb disproportionate energy and fail prematurely. For >1500 W requirements, Vishay recommends using higher-rated parts like 3KP13A instead of parallel configurations.
1.5KE13A-E3/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 11.1V
- Voltage - Breakdown (Min):
- 12.4V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 82.4A
- 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
1.5KE13A-E3/51 FAQ
1.How can I place an order for 1.5KE13A-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE13A-E3/51 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 1.5KE13A-E3/51 reliable?
The price and inventory of 1.5KE13A-E3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE13A-E3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KE13A-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE13A-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE13A-E3/51?
1.5KE13A-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE13A-E3/51 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 1.5KE13A-E3/51?
For technical support, including 1.5KE13A-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE13A-E3/51 requirements.
6.How does Aetrix verify that 1.5KE13A-E3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE13A-E3/51 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 1.5KE13A-E3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE13A-E3/51?
All 1.5KE13A-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE13A-E3/51, 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 1.5KE13A-E3/51 part is unused and in its original packaging.
Return procedure for 1.5KE13A-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE13A-E3/51 Tags
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