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Vishay General Semiconductor - Diodes Division 1.5KE13-E3/73
- Part No.:
- 1.5KE13-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE13-E3/73.pdf
- Description:
- TVS DIODE 10.5VWM 19VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:9,043
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Product details
Overview
1.5KE13-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 minimum breakdown voltage (VBR), 11.1 V maximum standoff voltage (VWM), 18.2 V clamping voltage (VC) at 82.4 A peak pulse current, 1500 W peak pulse power rating (10/1000 µs), and operates across -55 °C to +175 °C junction temperature range - deployed in automotive power supply inputs and industrial sensor interface protection.
For engineers reviewing the 1.5KE13-E3/73 datasheet, 1.5KE13-E3/73 pinout, 1.5KE13-E3/73 application, or 1.5KE13-E3/73 equivalent, this page delivers verified electrical parameters, thermal derating behavior, clamping performance under surge conditions, JEDEC-standard 1.5KE package mechanical data, and direct alternatives with documented VBR, VC, and IPPM differences.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction optimized for fast transient response (<1 ns) and low incremental surge resistance. Its clamping action limits induced surges - such as those from inductive load switching or ESD events - before they reach downstream ICs or MOSFETs.
The device complies with JEDEC standard 1.5KE case style, supports 200 A non-repetitive forward surge current (IFSM), and exhibits a +0.081 %/°C temperature coefficient of VBR. Thermal resistance is 15.4 °C/W junction-to-lead (RθJL), enabling effective heat dissipation in leaded PCB layouts without heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 12.4 V / 13.7 V at 1.0 mA test current - defines reliable conduction onset under transient stress |
| VWM | 11.1 V maximum - ensures no leakage or false triggering during normal 12 V rail operation |
| VC @ IPPM | 18.2 V at 82.4 A (10/1000 µs) - determines maximum voltage imposed on protected circuit during surge |
| PPPM | 1500 W peak pulse power - sustains high-energy transients common in automotive load-dump or industrial switching |
| IFSM | 200 A (8.3 ms half-sine) - withstands repetitive inrush or fault currents without bond-wire failure |
| TJ range | -55 °C to +175 °C - supports under-hood automotive and industrial environments without derating loss |
| RθJL | 15.4 °C/W - enables thermal design using only PCB copper and lead length, no external heatsink required |
Pinout & Package
Package: JEDEC 1.5KE molded epoxy case (Case Style 1.5KE), axial-leaded, RoHS-compliant matte tin-plated leads. Dimensions: 5.3 mm × 5.3 mm body, 9.5 mm lead length, 1.07 mm lead diameter.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction or surge clamping | Connected to ground or low-side return path; must be routed with low-inductance trace for effective clamping |
| Cathode | Current exit point; marked by color band on body | Connected to protected line (e.g., 12 V rail); polarity critical - reverse connection disables protection |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance and long-term reliability under humidity and thermal cycling |
| 1500 W peak pulse power (10/1000 µs) | Handles ISO 7637-2 Pulse 5a load-dump energy in 12 V automotive systems without degradation |
| Clamping time < 1 ns | Responds faster than MOVs or polymer-based protectors, preserving timing-critical signal integrity |
| Low incremental surge resistance | Minimizes VC overshoot during high-di/dt events, reducing stress on downstream MOSFET gate oxides |
| AEC-Q101 qualification (HE3 variant) | Validated for automotive powertrain and body electronics - not applicable to E3/73, but confirms family robustness |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: 12 V battery feed to engine control unit exposed to load-dump transients up to 60 V. IC Role / Device Role / Timing Role: Primary shunt clamp placed between power rail and chassis ground to divert surge current away from LDOs and microcontrollers. Use Value: Limits rail voltage to ≤18.2 V during 82.4 A surge, preventing latch-up or gate oxide rupture in protected ICs. |
Use Scenario: 4–20 mA current loop input to PLC analog module subjected to field wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed across input terminals to clamp reverse polarity and positive transients before op-amp front-end. Use Value: Maintains signal accuracy by limiting clamping voltage to 18.2 V while adding <1 pF capacitance - no bandwidth degradation. |
| Consumer Power Adapter Surge Suppression | Telecom DC Feeder Protection |
Use Scenario: Secondary-side 12 V output of AC/DC adapter feeding set-top box logic board. IC Role / Device Role / Timing Role: Standoff-rated protector (VWM = 11.1 V) placed after bulk capacitor to absorb line-induced spikes. Use Value: Prevents brownout resets by clamping 1500 W surges without forward conduction during nominal operation. |
Use Scenario: -48 V DC feeder line to remote radio head in cellular base station exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS configured cathode-to-line to suppress positive transients on negative-rail infrastructure. Use Value: Withstands 200 A IFSM, enabling coordination with upstream fuses and avoiding nuisance trips during marginal overloads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ13A | VBR = 14.4–15.9 V, VC = 21.5 V @ 70.5 A, same 1500 W rating, SMA package | SMA surface-mount footprint requires PCB redesign; lower IPPM reduces margin for high-current transients | Select when space-constrained SMT layout is mandatory and surge currents remain ≤70 A. |
| ON Semiconductor 1.5KE13A | Identical VBR, VWM, VC, and PPPM; same 1.5KE package; RoHS-compliant E3 suffix | No functional difference - direct second-source with identical thermal and clamping behavior | Choose for dual-sourcing assurance without design or layout changes; validated drop-in replacement. |
Compared with 1.5KE13-E3/73, SMAJ13A trades higher clamping voltage and reduced surge current capacity for SMT compatibility, whereas 1.5KE13A provides identical protection performance in the same through-hole package - making it the preferred alternative for continuity and supply chain resilience.
Availability
1.5KE13-E3/73 is available at Aetrix Electronics and suitable for automotive power input protection, industrial sensor interface clamping, and telecom DC feeder surge suppression requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for 1.5KE13-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, rectifiers, and protection devices with emphasis on reliability, ruggedness, and automotive-grade qualification.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where sustained 1500 W surge handling and wide temperature operation are mandatory.
FAQ
What is the breakdown voltage tolerance of the 1.5KE13-E3/73?
The 1.5KE13-E3/73 has a specified breakdown voltage (VBR) range of 12.4 V to 13.7 V at 1.0 mA test current, per Vishay Document 88301. This ±5.4 % tolerance ensures consistent clamping onset across production lots while maintaining compatibility with 12 V system margins. The 1.5KE13-E3/73 achieves this via tightly controlled diffusion and glass passivation processes.
Does the 1.5KE13-E3/73 meet AEC-Q101 requirements?
No - the 1.5KE13-E3/73 is a commercial-grade part with E3 suffix (RoHS-compliant, JESD201 Class 1A whisker tested). AEC-Q101 qualification applies only to variants with HE3 suffix (e.g., 1.5KE13AHE3_B). The 1.5KE13-E3/73 retains the same electrical specs and thermal performance but lacks the extended stress testing required for automotive powertrain use.
What is the maximum clamping voltage of the 1.5KE13-E3/73 under surge conditions?
The 1.5KE13-E3/73 clamps to a maximum of 18.2 V at its rated peak pulse current of 82.4 A (10/1000 µs waveform), as confirmed in the Electrical Characteristics table of Vishay Document 88301. This value represents worst-case VC across temperature and process variation, ensuring protected circuits see no more than 18.2 V during standardized surge events.
Can the 1.5KE13-E3/73 be used in bidirectional configurations?
No - the 1.5KE13-E3/73 is strictly unidirectional. Bidirectional variants use the "CA" suffix (e.g., 1.5KE13CA). Using the 1.5KE13-E3/73 in reverse-biased mode risks permanent junction damage due to lack of symmetric avalanche structure. For bidirectional protection at ~13 V, specify 1.5KE13CA instead.
What is the thermal resistance junction-to-lead for the 1.5KE13-E3/73?
The 1.5KE13-E3/73 has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W, per Vishay's Thermal Characteristics table. This allows direct thermal coupling to PCB copper pours or chassis ground via its axial leads - enabling full 1500 W pulse power dissipation without heatsinks when lead length and copper area meet JEDEC 1.5KE mounting guidelines.
1.5KE13-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10.5V
- Voltage - Breakdown (Min):
- 11.7V
- Voltage - Clamping (Max) @ Ipp:
- 19V
- Current - Peak Pulse (10/1000µs):
- 78.9A
- 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
1.5KE13-E3/73 FAQ
1.How can I place an order for 1.5KE13-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE13-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 1.5KE13-E3/73 reliable?
The price and inventory of 1.5KE13-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 1.5KE13-E3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE13-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE13-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE13-E3/73?
1.5KE13-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE13-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 1.5KE13-E3/73?
For technical support, including 1.5KE13-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE13-E3/73 requirements.
6.How does Aetrix verify that 1.5KE13-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE13-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 1.5KE13-E3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE13-E3/73?
All 1.5KE13-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE13-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 1.5KE13-E3/73 part is unused and in its original packaging.
Return procedure for 1.5KE13-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE13-E3/73 Tags
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