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Vishay General Semiconductor - Diodes Division 1.5KE13A-E3/73
- Part No.:
- 1.5KE13A-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE13A-E3/73.pdf
- Description:
- TVS DIODE 11.1VWM 18.2VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:6,362
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Product details
Overview
1.5KE13A-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 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 to safeguard MOSFETs, ICs, and sensor interfaces against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1.5KE13A-E3/73 datasheet, 1.5KE13A-E3/73 pinout, 1.5KE13A-E3/73 application, or 1.5KE13A-E3/73 equivalent, this device delivers verified clamping performance, JEDEC-standardized unidirectional polarity with cathode band marking, RoHS-compliant matte tin-plated leads, and commercial-grade reliability per UL 94 V-0 molded epoxy package - critical for automotive body electronics, industrial I/O protection, and telecom power supply front-ends.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ at 11.1 V), then transitions to low-impedance conduction within <1 ns when transient voltage exceeds VBR. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, enabling precise clamping during repetitive 10/1000 µs pulses at 0.01% duty cycle.
The device is rated for -55 °C to +175 °C operating junction temperature, supports 200 A non-repetitive forward surge current (8.3 ms half-sine), and exhibits 0.081 %/°C temperature coefficient of VBR - ensuring predictable voltage threshold drift across thermal environments in engine control units and motor drive circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 12.4 V / 13.7 V at 1.0 mA - defines precise clamping initiation threshold for overvoltage events |
| VWM | 11.1 V - maximum continuous working voltage before leakage exceeds 5 µA |
| VC at IPPM | 18.2 V at 82.4 A - actual clamped voltage seen by protected circuit during 1500 W transient |
| PPPM | 1500 W - peak pulse power handling capability with standardized 10/1000 µs waveform |
| IFSM | 200 A - surge current tolerance for 8.3 ms half-sine wave, critical for relay coil suppression |
| TJ max. | +175 °C - enables operation in under-hood automotive and high-temperature industrial enclosures |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package with 0.375" lead length, UL 94 V-0 compliant |
Pinout & Package
1.5KE13A-E3/73 uses a two-terminal axial-leaded DO-201AD package (Case Style 1.5KE). The cathode is marked by a color band on the body; the anode is unmarked. Leads are matte tin-plated and solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | High-side connection point for unidirectional clamping | Connected to protected line; conducts surge current to ground when VLINE > VBR |
| Anode (unmarked end) | Reference/return path | Typically tied to system ground or low-voltage rail; completes shunt path during overvoltage event |
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) | Protects against severe transients such as ISO 7637-2 Pulse 5a (load dump) in 12 V automotive systems |
| Clamping response time <1 ns | Prevents damage to fast-switching MOSFETs and microcontrollers before internal protection triggers |
| UL 94 V-0 molded epoxy case | Meets flame-retardancy requirements for industrial control panels and telecom infrastructure |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance, suitable for lead-free reflow and wave soldering |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump transients up to 60 V and 100 ms duration. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed between power input and ground, activated only during overvoltage events. Use Value: Limits voltage seen by downstream LDOs and MCUs to ≤18.2 V, preventing latch-up and gate oxide rupture in automotive-grade silicon. |
Use Scenario: Safeguarding 4–20 mA current loop transmitters and analog sensor outputs in factory automation PLCs. IC Role / Device Role / Timing Role: Line-side TVS connected in parallel with input terminals to absorb ESD and cable discharge events. Use Value: Maintains signal integrity below 11.1 V standby while clamping 8 kV contact ESD to <18.2 V, preserving ADC accuracy and isolator lifetime. |
| Telecom Power Supply Input | Consumer Appliance Motor Drive |
Use Scenario: Front-end protection of AC/DC SMPS inputs in base station power modules exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-level unidirectional suppressor mounted before bridge rectifier to divert common-mode transients. Use Value: Withstands 1500 W pulses without degradation, reducing need for secondary MOV stages and improving MTBF in field-deployed equipment. |
Use Scenario: Suppressing inductive kickback from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Cathode-to-rail placement across motor terminals to clamp flyback voltage spikes during PWM commutation. Use Value: Limits reverse voltage across H-bridge MOSFETs to 18.2 V, eliminating need for higher-VDS devices and lowering BOM cost. |
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 | Smaller SMB package (3.5 mm × 4.6 mm), lower 600 W PPPM, same 13 V nominal VBR range | Preferred for space-constrained PCBs; unsuitable for 1500 W surge events requiring 1.5KE footprint | Select SMBJ13A only when board area is limited and peak surge energy does not exceed 600 W. |
| 1.5KE13CA | Bidirectional variant with identical VBR (12.4–13.7 V), same 1500 W rating, but symmetric clamping in both polarities | Required for AC-coupled or floating signal lines where reverse polarity transients occur | Choose 1.5KE13CA only when protecting bidirectional data lines (e.g., RS-485) or transformer-coupled circuits. |
Compared with SMBJ13A and 1.5KE13CA, the 1.5KE13A-E3/73 provides the highest surge power density in axial-leaded form factor, maintains strict unidirectional polarity for DC rail use, and offers proven thermal robustness via its 0.375" lead length - making it optimal for high-energy industrial and automotive front-end protection where layout flexibility and legacy through-hole compatibility matter.
Availability
1.5KE13A-E3/73 is available at Aetrix Electronics and suitable for automotive body control modules, industrial programmable logic controllers, telecom power supplies, and consumer appliance motor drives requiring stable component supply and long-lifecycle support.
Supply support for 1.5KE13A-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 and ruggedized performance.
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 without compromising size or cost.
FAQ
What is the clamping voltage of the 1.5KE13A-E3/73 under full-rated surge current?
The 1.5KE13A-E3/73 clamps to a maximum of 18.2 V when subjected to its rated 82.4 A peak pulse current (IPPM) using the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and represents the upper limit of voltage imposed on the protected circuit during worst-case transient events - critical for verifying margin against downstream component absolute maximum ratings.
Is the 1.5KE13A-E3/73 suitable for automotive applications requiring AEC-Q101 qualification?
No, the 1.5KE13A-E3/73 is a commercial-grade part with E3 suffix (RoHS-compliant, JESD 201 Class 1A whisker tested) but not AEC-Q101 qualified. For automotive use, specify 1.5KE13AHE3_B - the AEC-Q101-qualified variant with identical electrical specs and enhanced reliability screening per stress test requirements.
How does the 1.5KE13A-E3/73 differ from the 1.5KE13CA variant?
The 1.5KE13A-E3/73 is unidirectional with cathode band marking and clamps only during positive overvoltage relative to ground; the 1.5KE13CA is bidirectional, clamping symmetrically for both polarities. Their VBR, VC, and PPPM match, but 1.5KE13CA lacks polarity marking and is used on AC or floating lines like RS-485 or Ethernet PHY interfaces.
What is the maximum operating temperature for the 1.5KE13A-E3/73 junction?
The 1.5KE13A-E3/73 has a maximum junction temperature (TJ) rating of +175 °C, validated per JEDEC standards. This allows reliable operation in under-hood automotive environments and sealed industrial enclosures where ambient temperatures exceed 125 °C - provided thermal design accounts for RθJA = 75 °C/W and RθJL = 15.4 °C/W.
Can the 1.5KE13A-E3/73 be used in parallel to increase surge handling capacity?
Yes, multiple 1.5KE13A-E3/73 devices can be paralleled to distribute surge current, but derating is required due to mismatch in VBR tolerance (±5%). To ensure balanced sharing, use units from the same manufacturing lot and add small balancing resistors (e.g., 0.1 Ω) in series with each device - otherwise uneven current division may cause premature failure of one unit.
1.5KE13A-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):
- 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-E3/73 FAQ
1.How can I place an order for 1.5KE13A-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE13A-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 1.5KE13A-E3/73 reliable?
The price and inventory of 1.5KE13A-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 1.5KE13A-E3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE13A-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE13A-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE13A-E3/73?
1.5KE13A-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE13A-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 1.5KE13A-E3/73?
For technical support, including 1.5KE13A-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE13A-E3/73 requirements.
6.How does Aetrix verify that 1.5KE13A-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE13A-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 1.5KE13A-E3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE13A-E3/73?
All 1.5KE13A-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE13A-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 1.5KE13A-E3/73 part is unused and in its original packaging.
Return procedure for 1.5KE13A-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE13A-E3/73 Tags
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