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Vishay General Semiconductor - Diodes Division 1.5KE100C-E3/73
- Part No.:
- 1.5KE100C-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE100C-E3/73.pdf
- Description:
- TVS DIODE 81VWM 144VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:6,766
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Product details
Overview
1.5KE100C-E3/73 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 100 V breakdown voltage (VBR = 95–105 V), 1500 W peak pulse power (10/1000 µs), 137 V maximum clamping voltage at 10.9 A, and operates across –55 °C to +175 °C junction temperature. It protects MOSFETs, ICs, and sensor interfaces in automotive and industrial power supply rails.
For engineers reviewing the 1.5KE100C-E3/73 datasheet, 1.5KE100C-E3/73 pinout, 1.5KE100C-E3/73 application, or 1.5KE100C-E3/73 equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, JEDEC 1.5KE package details, thermal resistance (RθJL = 15.4 °C/W), and direct alternatives with documented VWM/VC trade-offs.
Technical Context
This TVS diode uses a glass-passivated silicon junction optimized for fast transient response (<1 ns) and low incremental surge resistance. Its bidirectional architecture enables symmetrical clamping in AC-coupled or floating signal paths without polarity concerns, and it complies with ANSI/IEEE C62.35 surge waveform standards.
The device sustains repetitive 10/1000 µs pulses at 0.01% duty cycle and derates linearly above 25 °C ambient per Fig. 2. Clamping performance is validated up to 10.9 A peak pulse current (IPPM) with VC ≤ 137 V, and its 185 V stand-off voltage (VWM) ensures reliable blocking during normal operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 95 V / 105 V - Ensures consistent avalanche initiation across production lots and temperature range. |
| VWM | 85.5 V - Maximum continuous reverse working voltage before leakage exceeds 1 µA; defines safe operating margin below clamping threshold. |
| VC @ IPPM | 137 V - Clamped voltage seen by protected circuit at 10.9 A transient; determines downstream component voltage stress. |
| PPPM | 1500 W - Peak pulse power handling for 10/1000 µs waveform; supports IEC 61000-4-5 Level 4 surge immunity. |
| IPPM | 10.9 A - Maximum non-repetitive surge current the device safely clamps without degradation. |
| TJ max. | +175 °C - Enables use in under-hood automotive environments and high-temperature industrial enclosures. |
| RθJL | 15.4 °C/W - Low junction-to-lead thermal resistance allows effective heat dissipation through PCB copper pours or heatsinked leads. |
Pinout & Package
Package: JEDEC DO-201AD (Case Style 1.5KE), molded epoxy body with matte tin-plated leads; RoHS-compliant, commercial grade (E3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Acts as cathode during positive transients and anode during negative transients; no polarity marking required. |
| Cathode | Transient return path (bidirectional) | Electrically identical to anode in bidirectional configuration; symmetric clamping in both directions. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance (±5%) and long-term reliability under repeated surge stress. |
| 1500 W peak pulse power | Meets IEC 61000-4-5 surge test requirements for industrial and automotive equipment without external heatsinking. |
| <1 ns response time | Clamps transients before sensitive downstream components (e.g., microcontrollers, gate drivers) experience overvoltage damage. |
| UL 94 V-0 molding compound | Provides flame-retardant encapsulation required for safety-certified power supplies and EV charging systems. |
| JEDEC 1.5KE mechanical standard | Ensures compatibility with automated pick-and-place and wave soldering processes using industry-standard tape-and-reel (73 = 7" reel). |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Suppresses load-dump and jump-start transients on 12 V battery-fed ECUs and body control modules. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between power rail and ground, absorbing energy before it reaches LDOs or MCU power pins. Use Value: Limits rail voltage to ≤137 V during 100 A/100 ms load dump, preventing latch-up or oxide breakdown in 3.3 V/5 V logic. | Use Scenario: Shields 4–20 mA current-loop transmitters and analog sensor outputs from ESD and field-induced surges. IC Role / Device Role / Timing Role: Low-capacitance (≈100 pF) shunt protector across differential signal pair or supply/return lines. Use Value: Maintains signal integrity with <1 µA leakage at 85.5 V, while clamping ±2 kV contact ESD per IEC 61000-4-2. |
| Telecom Line Interface | AC-DC Adapter Input Stage |
Use Scenario: Protects Ethernet PHYs and DSL line drivers against lightning-induced surges on unshielded twisted-pair cables. IC Role / Device Role / Timing Role: Primary-level TVS mounted at connector entry point, coordinated with GDT or MOV secondary protection. Use Value: Responds within 1 ns to clamp common-mode transients up to 1.5 kW, preserving PHY receiver sensitivity. | Use Scenario: Guards bridge rectifier inputs and bulk capacitor terminals against AC mains surges and switching spikes. IC Role / Device Role / Timing Role: Unidirectional/bidirectional shunt clamp across AC input or DC bus, rated for 10/1000 µs waveform compliance. Use Value: Withstands 1500 W peak pulses without parametric shift, enabling single-stage surge protection in compact adapters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100CA | Lower PPPM (600 W), smaller SMB package (vs. DO-201AD), VC = 165 V @ 3.6 A | Better suited for space-constrained PCBs but requires parallel placement for equivalent energy handling. | Select when board area is critical and surge levels are ≤Level 3 (IEC 61000-4-5); verify thermal relief on SMB pads. |
| 1.5SMC100CA | Same PPPM (1500 W), SMC package (DO-214AB), VC = 137 V @ 10.9 A, RθJL = 17.5 °C/W | Offers identical clamping but higher thermal resistance; requires larger copper area for equivalent thermal performance. | Choose for automated assembly compatibility with SMC feeders; confirm layout provides ≥200 mm² 2-oz copper pour. |
Compared with 1.5KE100C-E3/73, SMBJ100CA trades peak power and thermal robustness for footprint reduction, while 1.5SMC100CA matches power rating but demands greater PCB thermal management due to higher junction-to-lead resistance.
Availability
1.5KE100C-E3/73 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom line surge suppression requiring stable component supply across multi-year production cycles.
Supply support for 1.5KE100C-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 AEC-Q qualification.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure where sustained surge immunity and thermal stability are mandatory.
FAQ
What is the clamping voltage of the 1.5KE100C-E3/73 under maximum rated surge current?
The 1.5KE100C-E3/73 exhibits a maximum clamping voltage (VC) of 137 V when subjected to its rated peak pulse current (IPPM) of 10.9 A using the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees predictable overvoltage limiting for downstream components. The 1.5KE100C-E3/73 maintains this clamping performance across its full operating temperature range (–55 °C to +175 °C).
Is the 1.5KE100C-E3/73 suitable for bidirectional signal line protection?
Yes, the 1.5KE100C-E3/73 is explicitly designed as a bidirectional TVS diode, indicated by the "C" suffix. It provides symmetrical clamping for both positive and negative transients without polarity dependence, making it ideal for AC-coupled data lines, transformer-isolated interfaces, and floating sensor outputs. The 1.5KE100C-E3/73 has no cathode band marking and delivers identical VBR, VC, and IPPM in either direction.
How does the 1.5KE100C-E3/73 compare to unidirectional variants like 1.5KE100A-E3/73?
The 1.5KE100C-E3/73 differs from unidirectional 1.5KE100A-E3/73 in polarity behavior and leakage: the "C" version clamps equally in both directions with 1 µA max leakage at 85.5 V, while the "A" version blocks only in reverse and conducts forward at ~3.5 V. The 1.5KE100C-E3/73 eliminates need for polarity-aware layout and supports AC signal paths where voltage swings exceed VWM in both polarities.
What is the thermal resistance and how does it affect PCB layout for the 1.5KE100C-E3/73?
The 1.5KE100C-E3/73 has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W, measured with 0.375" (9.5 mm) lead length. This low value enables efficient heat transfer from the die to PCB copper via the leads. For sustained surge duty, designers should use ≥25 mm² of 2-oz copper connected to each lead of the 1.5KE100C-E3/73 to maintain TJ < 150 °C during repetitive events.
Does the 1.5KE100C-E3/73 meet automotive qualification standards?
The base 1.5KE100C-E3/73 is commercial-grade (E3 suffix) and not AEC-Q101 qualified. However, Vishay offers the AEC-Q101-qualified variant 1.5KE100C-HE3_B for automotive applications. The 1.5KE100C-E3/73 remains suitable for non-safety-critical automotive subsystems where qualification is not mandated, but design validation per ISO 7637-2 is recommended. Always verify qualification status via the full part number before automotive deployment.
1.5KE100C-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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 81V
- Voltage - Breakdown (Min):
- 90V
- Voltage - Clamping (Max) @ Ipp:
- 144V
- Current - Peak Pulse (10/1000µs):
- 10.4A
- 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
1.5KE100C-E3/73 FAQ
1.How can I place an order for 1.5KE100C-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE100C-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 1.5KE100C-E3/73 reliable?
The price and inventory of 1.5KE100C-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 1.5KE100C-E3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE100C-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE100C-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE100C-E3/73?
1.5KE100C-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE100C-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 1.5KE100C-E3/73?
For technical support, including 1.5KE100C-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE100C-E3/73 requirements.
6.How does Aetrix verify that 1.5KE100C-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE100C-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 1.5KE100C-E3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE100C-E3/73?
All 1.5KE100C-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE100C-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 1.5KE100C-E3/73 part is unused and in its original packaging.
Return procedure for 1.5KE100C-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE100C-E3/73 Tags
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