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Vishay General Semiconductor - Diodes Division 1.5KE13CHE3/73
- Part No.:
- 1.5KE13CHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE13CHE3/73.pdf
- Description:
- TVS DIODE 10.5VWM 19VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,497
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Product details
Overview
1.5KE13CHE3/73 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 13 V nominal breakdown voltage (VBR = 12.4–13.7 V at 1.0 mA), 1500 W peak pulse power rating (10/1000 µs), clamping voltage of 18.2 V at 82.4 A, 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 in industrial power supplies.
For engineers reviewing the 1.5KE13CHE3/73 datasheet, 1.5KE13CHE3/73 pinout, 1.5KE13CHE3/73 application, or 1.5KE13CHE3/73 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, clamping performance under standardized surge waveforms, thermal derating behavior, and AEC-Q101-qualified alternatives - all critical for robust ESD/surge protection design validation.
Technical Context
This TVS diode employs a glass-passivated silicon junction optimized for fast transient response (<1 ns) and low incremental surge resistance. Its unidirectional polarity enables cathode-referenced clamping on positive-going transients, with a maximum reverse standoff voltage (VWM) of 11.1 V and leakage current ≤5.0 µA at that voltage.
The device sustains 200 A non-repetitive forward surge current (8.3 ms half-sine) and exhibits a typical thermal resistance of 15.4 °C/W (junction-to-lead), enabling effective heat dissipation in PCB-mounted applications without heatsinking under pulsed conditions. Its 1.5KE case conforms to UL 94 V-0 flammability requirements and supports soldering per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 12.4 V / 13.7 V at 1.0 mA - defines precise clamping onset threshold for overvoltage detection |
| VWM | 11.1 V - maximum continuous reverse operating voltage before leakage exceeds 5 µA |
| VC @ IPPM | 18.2 V at 82.4 A - peak clamped voltage during 10/1000 µs surge, limiting stress on downstream components |
| PPPM | 1500 W - peak pulse power handling capability under standard lightning surge waveform |
| IFSM | 200 A - maximum non-repetitive forward surge current (8.3 ms half-sine), critical for inductive load snubbing |
| TJ range | –55 °C to +175 °C - wide operating junction temperature enables use in under-hood automotive and industrial environments |
| Package | JEDEC 1.5KE - axial-leaded, molded epoxy case with matte tin-plated leads, RoHS-compliant (E3 suffix) |
Pinout & Package
1.5KE13CHE3/73 uses the standard JEDEC 1.5KE axial package: molded epoxy body with matte tin-plated leads, 0.375" (9.5 mm) lead length, and UL 94 V-0 flammability rating. The cathode is marked by a color band on the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to ground or low-impedance reference; carries full surge current during clamping |
| Cathode | Clamping node / Protected line connection | Connected to the line being protected (e.g., 12 V rail); voltage clamps to ≤18.2 V when transient exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance (±5%) and long-term reliability under thermal cycling and humidity |
| 1500 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity without external series impedance in many designs |
| Clamping ratio (VC/VBR) ≈ 1.42 | Indicates efficient voltage limiting - lower ratio reduces stress margin required on protected ICs |
| AEC-Q101 qualified (HE3 variant) | Validated for automotive powertrain and chassis applications requiring zero defect reliability and extended temperature operation |
| Low thermal resistance (RθJL = 15.4 °C/W) | Allows rapid heat transfer to PCB copper, sustaining repetitive surge events without thermal runaway |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Primary shunt clamping element placed directly across input rail, responding within <1 ns to limit voltage to ≤18.2 V. Use Value: Prevents latch-up or gate oxide damage in microcontrollers and CAN transceivers during high-energy transients up to 1500 W. |
Use Scenario: Safeguarding analog front-end inputs of pressure/temperature sensors in factory automation systems exposed to relay coil kickback. IC Role / Device Role / Timing Role: Unidirectional TVS connected between sensor signal line and ground, clamping negative transients below –18.2 V and positive above +18.2 V via circuit grounding. Use Value: Maintains signal integrity by limiting transient excursions to ±18.2 V while adding <1 pF capacitance - negligible impact on 10 kHz sensor bandwidth. |
| DC-DC Converter Input Protection | Telecom Line Card Surge Suppression |
Use Scenario: Input-stage overvoltage protection for 24 V input buck converters in PoE-powered equipment. IC Role / Device Role / Timing Role: First-line defense against induced surges on upstream 24 V distribution bus; placed before input filter capacitor. Use Value: Absorbs 10/1000 µs surges up to 82.4 A without degradation, preserving converter enable logic and preventing bootstrap capacitor overvoltage. |
Use Scenario: Secondary surge protection on -48 V telecom power feeds entering line cards, complementing gas discharge tube (GDT) primary protection. IC Role / Device Role / Timing Role: Fast-response clamping device triggered after GDT ionization, handling residual energy and high-frequency ring components. Use Value: Reduces let-through voltage to <18.2 V within nanoseconds, protecting ASICs and PHYs rated for only 20 V absolute maximum ratings. |
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 (SMB) surface-mount package; same VBR range (12.4–13.7 V), but lower PPPM = 600 W | Used where board space is constrained and surge energy is limited to ≤600 W (e.g., USB port protection) | Select SMBJ13A only if layout prohibits axial components and system-level surge testing confirms 600 W sufficiency. |
| 1.5KE13CAHE3/A | Bidirectional variant (13 V symmetrical clamping); identical package, power rating, and AEC-Q101 qualification | Required for AC-coupled or floating signal lines (e.g., RS-485, CAN FD) where both polarities must be suppressed | Choose 1.5KE13CAHE3/A when protecting bidirectional data lines - not a drop-in replacement due to polarity difference. |
Compared with 1.5KE13CHE3/73, SMBJ13A trades axial-mount ruggedness and 1500 W surge capacity for compact SMT integration, while 1.5KE13CAHE3/A provides symmetrical clamping essential for differential signaling but cannot replace unidirectional rail protection without circuit redesign.
Availability
1.5KE13CHE3/73 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, DC-DC converter input staging, and telecom line card surge suppression requiring stable component supply and traceable sourcing.
Supply support for 1.5KE13CHE3/73 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, MOSFETs, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting industrial motor drives, automotive subsystems, and telecom infrastructure where 1500 W surge immunity and AEC-Q101 compliance are mandatory.
FAQ
What is the exact breakdown voltage range for 1.5KE13CHE3/73?
The 1.5KE13CHE3/73 has a guaranteed breakdown voltage (VBR) range of 12.4 V to 13.7 V measured at 1.0 mA test current, per Vishay Document Number 88301. This tight tolerance ensures consistent clamping onset across production lots and supports reliable overvoltage threshold design in 12 V systems. The value is confirmed in the Electrical Characteristics table on page 2 of the official datasheet.
Is 1.5KE13CHE3/73 RoHS compliant and lead-free?
Yes, 1.5KE13CHE3/73 is RoHS compliant and lead-free. The "E3" suffix explicitly denotes RoHS compliance per JEDEC standards, and the matte tin-plated leads meet J-STD-002 solderability requirements. Vishay confirms this in the Mechanical Data section of Document 88301, stating "Base P/N-E3 – RoHS compliant, commercial grade." No lead content is present in the die, mold compound, or terminations.
Does 1.5KE13CHE3/73 meet AEC-Q101 qualification?
No - 1.5KE13CHE3/73 is the commercial-grade variant. AEC-Q101 qualification applies only to parts with the "HE3" suffix (e.g., 1.5KE13AHE3/B). Per Note (2) on page 3 of Document 88301, AEC-Q101 is applied to "1.5KE6.8AHE3_B to 1.5KE220AHE3_B", and the "E3/73" suffix indicates tape-and-reel packaging for the standard commercial version. For automotive use, specify 1.5KE13AHE3/B instead.
What is the maximum clamping voltage of 1.5KE13CHE3/73 under surge conditions?
The maximum clamping voltage (VC) of 1.5KE13CHE3/73 is 18.2 V, measured at its peak pulse current (IPPM) of 82.4 A under the standardized 10/1000 µs waveform. This value is specified in the Electrical Characteristics table (page 2, row for 1.5KE13A) and defines the upper voltage limit imposed on protected circuits during worst-case transient events.
Can 1.5KE13CHE3/73 be used in bidirectional signal protection?
No - 1.5KE13CHE3/73 is unidirectional and must be used with correct polarity (cathode toward the protected line). For bidirectional protection, Vishay offers the 1.5KE13CAHE3/A variant, which features symmetrical breakdown in both directions. Using 1.5KE13CHE3/73 on AC or floating lines would result in forward conduction and failure during negative transients, as confirmed in the Polarity note on page 1 of Document 88301.
1.5KE13CHE3/73 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:
- -
- Bidirectional Channels:
- 1
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE13CHE3/73 FAQ
1.How can I place an order for 1.5KE13CHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE13CHE3/73 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 1.5KE13CHE3/73 reliable?
The price and inventory of 1.5KE13CHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE13CHE3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE13CHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE13CHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE13CHE3/73?
1.5KE13CHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE13CHE3/73 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 1.5KE13CHE3/73?
For technical support, including 1.5KE13CHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE13CHE3/73 requirements.
6.How does Aetrix verify that 1.5KE13CHE3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE13CHE3/73 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 1.5KE13CHE3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE13CHE3/73?
All 1.5KE13CHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE13CHE3/73, 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 1.5KE13CHE3/73 part is unused and in its original packaging.
Return procedure for 1.5KE13CHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE13CHE3/73 Tags
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