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Vishay General Semiconductor - Diodes Division 1.5KE11CAHE3_B/C
- Part No.:
- 1.5KE11CAHE3_B/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE11CAHE3_B/C.pdf
- Description:
- 1.5KW,11V 5%,BIDIR,AXIAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,045
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Product details
Overview
1.5KE11CAHE3_B/C from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for clamping voltage transients on signal or power lines. It features a 11 V nominal breakdown voltage (VBR = 10.5–11.6 V at 1 mA), 1500 W peak pulse power (10/1000 µs), and clamps to ≤15.6 V at 96.2 A peak pulse current - used in automotive sensor line protection and industrial I/O interface surge hardening.
For engineers reviewing the 1.5KE11CAHE3_B/C datasheet, 1.5KE11CAHE3_B/C pinout, 1.5KE11CAHE3_B/C application, or 1.5KE11CAHE3_B/C equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification status, 175 °C max junction temperature, RoHS-compliant HE3 suffix with JESD 201 Class 2 whisker resistance, and compatibility with 8.3 ms surge waveforms per IEC 61000-4-5.
Technical Context
This device operates as a silicon avalanche diode with glass-passivated junction, delivering symmetrical clamping in both polarities. Its bidirectional architecture enables protection of AC-coupled or floating signal paths without polarity constraints, and its low incremental surge resistance ensures stable clamping under repetitive 10/1000 µs transients at 0.01% duty cycle.
Designed for transient suppression per IEC 61000-4-5 and UL 497B, it exhibits sub-nanosecond response time (<1 ns), thermal resistance of 15.4 °C/W (junction-to-lead), and operates across –55 °C to +175 °C. The HE3 suffix confirms AEC-Q101 qualification and JESD 201 Class 2 tin whisker mitigation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 10.5 V / 11.6 V at 1 mA - defines precise clamping onset threshold for bidirectional overvoltage events |
| VWM | 9.4 V - maximum continuous working voltage before leakage exceeds 5 µA, ensuring no false triggering |
| VC @ IPPM | ≤15.6 V at 96.2 A - actual clamped voltage during 1500 W transient, limiting downstream stress |
| PPPM | 1500 W (10/1000 µs) - peak surge energy handling capacity compatible with IEC 61000-4-5 Level 4 |
| TJ max | +175 °C - enables operation in under-hood automotive or high-ambient industrial environments |
| Qualification | AEC-Q101 qualified (HE3 suffix) - validated for automotive electronics reliability per stress test requirements |
| Leakage @ VWM | ≤5 µA - negligible standby current, critical for battery-powered or low-power sensor interfaces |
Pinout & Package
Package: DO-201AD (Case Style 1.5KE), axial-leaded molded epoxy body meeting UL 94 V-0; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Not marked; bidirectional symmetry means either lead functions as anode or cathode depending on transient polarity |
| Cathode | Current exit point in forward bias | No color band or marking - device lacks polarity identification due to bidirectional construction |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable avalanche characteristics and long-term reliability under repeated surge stress |
| 1500 W peak pulse power (10/1000 µs) | Supports robust protection against lightning-induced surges and inductive switching spikes in industrial controls |
| AEC-Q101 qualified (HE3) | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| Sub-nanosecond response time | Clamps transients before sensitive ICs experience damaging overvoltage - critical for microcontroller I/O protection |
| RoHS-compliant, JESD 201 Class 2 whisker resistance | Ensures solder joint integrity in high-reliability assemblies subject to thermal cycling and long service life |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role: Bidirectional clamping element placed between signal line and ground, shunting surge current away from protected IC pins. Use Value: Maintains signal integrity below 15.6 V clamp level while surviving 100+ surges per AEC-Q101 qualification testing. | Use Scenario: Shielding digital input modules in programmable logic controllers from 2 kV/1 kA surge events induced by relay coil switching. IC Role / Device Role: Primary transient suppressor on field-side signal traces, operating in parallel with MOVs or gas discharge tubes for staged protection. Use Value: Delivers 1500 W pulse handling without degradation, enabling compliance with IEC 61000-4-4 and -4-5 immunity requirements. |
| Telecom Line Interface | Consumer Appliance Control Board |
Use Scenario: Safeguarding RS-485 transceivers in remote terminal units connected to outdoor telecom infrastructure exposed to lightning-induced surges. IC Role / Device Role: Bidirectional TVS placed across differential pair (A/B) and referenced to ground, providing symmetrical common-mode and differential-mode suppression. Use Value: Clamps transients within 1 ns while maintaining <5 µA leakage at 9.4 V, preserving data integrity on low-power communication links. | Use Scenario: Protecting microcontroller GPIOs and display driver ICs in smart home appliances from ESD events during user interaction or power-up sequencing. IC Role / Device Role: Secondary-level protection device mounted adjacent to connectors and switches, complementing primary ESD diodes. Use Value: Provides 1500 W surge margin beyond IEC 61000-4-2 Level 4 (15 kV air/8 kV contact), reducing field failure rates in high-volume production. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11CA | Lower peak pulse power (600 W), smaller SMB package (vs. DO-201AD), higher VC (18.2 V @ 33.7 A) | Better suited for space-constrained PCBs but less robust for high-energy surges | Select when board area is critical and surge threat level is ≤600 W (e.g., consumer USB ports) |
| 1.5SMC11CA | Same 1500 W rating and DO-214AB package, slightly higher VBR range (10.5–12.1 V), non-AEC-Q101 | Commercial-grade alternative lacking automotive qualification and whisker testing | Choose for cost-sensitive industrial designs where AEC-Q101 is not mandated |
Compared with 1.5KE11CAHE3_B/C, SMBJ11CA trades surge robustness for compactness, while 1.5SMC11CA matches power handling but omits automotive qualification - making 1.5KE11CAHE3_B/C the only option combining 1500 W, DO-201AD ruggedness, and AEC-Q101 compliance.
Availability
1.5KE11CAHE3_B/C is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer appliance control boards requiring stable component supply and long-term lifecycle support.
Supply support for 1.5KE11CAHE3_B/C 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 application-specific performance.
The 1.5KE series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where sustained surge immunity and thermal stability are mandatory.
FAQ
What is the breakdown voltage tolerance for 1.5KE11CAHE3_B/C?
The 1.5KE11CAHE3_B/C has a specified breakdown voltage range of 10.5 V to 11.6 V at 1 mA test current, representing ±5% tolerance around the nominal 11 V rating. This tight VBR window ensures predictable clamping behavior across production lots and temperature extremes from –55 °C to +175 °C, critical for consistent protection in automotive and industrial systems using the 1.5KE11CAHE3_B/C.
Is 1.5KE11CAHE3_B/C suitable for automotive applications?
Yes, 1.5KE11CAHE3_B/C is AEC-Q101 qualified (confirmed by the HE3 suffix), tested for temperature cycling, humidity bias, mechanical shock, and surge endurance per automotive reliability standards. Its 175 °C maximum junction temperature, glass-passivated junction, and JESD 201 Class 2 whisker resistance make it appropriate for under-hood and chassis-mounted electronics where the 1.5KE11CAHE3_B/C provides certified transient protection.
How does the bidirectional configuration of 1.5KE11CAHE3_B/C affect circuit placement?
The 1.5KE11CAHE3_B/C has no polarity marking - both leads are functionally identical - allowing placement across any two nodes requiring symmetrical overvoltage clamping, such as differential signal pairs (RS-485, CAN), AC power inputs, or floating sensor bridges. This eliminates orientation errors during assembly and simplifies layout versus unidirectional TVS devices, directly leveraging the bidirectional nature of the 1.5KE11CAHE3_B/C.
What is the maximum clamping voltage of 1.5KE11CAHE3_B/C under surge conditions?
The 1.5KE11CAHE3_B/C clamps to a maximum of 15.6 V when subjected to its rated peak pulse current of 96.2 A (10/1000 µs waveform). This value is measured per JEDEC standards and represents the worst-case voltage seen by downstream circuitry during a full 1500 W transient event, ensuring protected ICs like microcontrollers or transceivers remain within safe operating limits - a defining performance parameter of the 1.5KE11CAHE3_B/C.
Does 1.5KE11CAHE3_B/C require a heatsink for standard operation?
No, the 1.5KE11CAHE3_B/C is designed for lead-mounted operation without external heatsinking under typical surge conditions. Its thermal resistance junction-to-lead is 15.4 °C/W, and continuous power dissipation is limited to 6.5 W on an infinite heatsink - far above the milliwatt-level leakage power in normal operation. Heatsinking is unnecessary unless subjected to frequent repetitive surges exceeding derating curves in Figure 2 of the 1.5KE11CAHE3_B/C datasheet.
1.5KE11CAHE3_B/C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 100A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE11CAHE3_B/C FAQ
1.How can I place an order for 1.5KE11CAHE3_B/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE11CAHE3_B/C 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 1.5KE11CAHE3_B/C reliable?
The price and inventory of 1.5KE11CAHE3_B/C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE11CAHE3_B/C is usually 5 days.
3.What payment methods are accepted for 1.5KE11CAHE3_B/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE11CAHE3_B/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE11CAHE3_B/C?
1.5KE11CAHE3_B/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE11CAHE3_B/C 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 1.5KE11CAHE3_B/C?
For technical support, including 1.5KE11CAHE3_B/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE11CAHE3_B/C requirements.
6.How does Aetrix verify that 1.5KE11CAHE3_B/C is sourced from the original manufacturer or authorized distributors?
All 1.5KE11CAHE3_B/C 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 1.5KE11CAHE3_B/C meets industry standards.
7.What is the process for return or replacement of 1.5KE11CAHE3_B/C?
All 1.5KE11CAHE3_B/C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE11CAHE3_B/C, 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 1.5KE11CAHE3_B/C part is unused and in its original packaging.
Return procedure for 1.5KE11CAHE3_B/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE11CAHE3_B/C Tags
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