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Vishay General Semiconductor - Diodes Division 1.5KE16CAHE3_B/C
- Part No.:
- 1.5KE16CAHE3_B/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE16CAHE3_B/C.pdf
- Description:
- 1.5KW,16V 5%,BIDIR,AXIAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,374
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Product details
Overview
1.5KE16CAHE3_B/C from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in signal and power lines. It features a 16 V breakdown voltage (VBR = 15.2–16.8 V), 1500 W peak pulse power (10/1000 µs), clamping voltage of 22.5 V at 66.7 A, and operates across –55 °C to +175 °C. It is used to safeguard MOSFETs, ICs, and sensor interfaces against lightning-induced transients and inductive switching surges in automotive and industrial control systems.
For engineers reviewing the 1.5KE16CAHE3_B/C datasheet, 1.5KE16CAHE3_B/C pinout, 1.5KE16CAHE3_B/C application, or 1.5KE16CAHE3_B/C equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, clamping performance under standardized surge waveforms, thermal resistance data (RθJL = 15.4 °C/W), and RoHS-compliant packaging details - all critical for ESD/surge protection design validation and BOM selection.
Technical Context
This bidirectional TVS diode uses a glass-passivated silicon junction optimized for sub-nanosecond response (<1 ns) and low incremental surge resistance. Its symmetrical clamping behavior applies equally in both polarities, with no polarity marking on the case - distinguishing it from unidirectional variants like 1.5KE16A.
Rated for 1500 W peak pulse power per 10/1000 µs waveform at 0.01% duty cycle, it sustains 6.5 W steady-state dissipation on an infinite heatsink at TL = 75 °C. The device meets JESD 201 Class 2 whisker resistance (HE3 suffix) and is AEC-Q101 qualified per Note (2) in the datasheet for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 15.2 V / 16.8 V at IT = 1.0 mA - defines reliable conduction onset under transient stress |
| VWM | 13.6 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 22.5 V at 66.7 A - clamped voltage during full 1500 W surge, limiting downstream component stress |
| PPPM | 1500 W - peak pulse power handling capability with 10/1000 µs waveform, critical for lightning surge immunity |
| TJ max. | +175 °C - enables operation in under-hood automotive or high-ambient industrial environments |
| RθJL | 15.4 °C/W - low junction-to-lead thermal resistance supports efficient heat transfer to PCB copper |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including HTRB, HTGB, and temperature cycling |
Pinout & Package
Package: Case Style 1.5KE - molded epoxy body with matte tin-plated leads, UL 94 V-0 rated, 0.375" (9.5 mm) lead length. Dimensions: 1.0" × 1.0" × 0.210" (25.4 mm × 25.4 mm × 5.3 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | No polarity marking; identical clamping behavior in either direction - simplifies PCB layout and eliminates orientation errors |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable, repeatable breakdown characteristics and long-term reliability under repeated surge events |
| 1500 W peak pulse power (10/1000 µs) | Meets IEC 61000-4-5 Level 4 surge immunity requirements for industrial and automotive ports |
| AEC-Q101 qualified (HE3_B variant) | Validated for automotive powertrain, body control, and ADAS modules requiring extended temperature and life-cycle compliance |
| Low RθJL = 15.4 °C/W | Reduces thermal derating impact - maintains surge rating up to TL = 75 °C without external heatsinking |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth in high-reliability applications, supporting >10-year field deployment in sealed enclosures |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across power rail and ground, responding within <1 ns to suppress spikes up to ±100 V. Use Value: Limits voltage seen by downstream DC/DC converters and microcontrollers to ≤22.5 V during 1500 W surges, preventing latch-up or gate oxide damage. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Low-capacitance TVS placed differential-mode across signal pair, suppressing EFT bursts and cable-coupled noise. Use Value: Maintains signal integrity by clamping transients before they reach precision ADC front-ends, with no DC bias shift due to symmetrical structure. |
| Telecom Line Surge Suppression | Consumer Equipment AC/DC Input Protection |
Use Scenario: Safeguarding Ethernet PHY interfaces and PoE injectors against induced lightning surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-level TVS on RJ45 magnetics secondary side, coordinated with GDT or MOV for staged protection. Use Value: Clamps common-mode surges to <25 V within nanoseconds, preserving PHY IC integrity while enabling system-level IEC 61000-4-5 compliance. |
Use Scenario: Secondary-side overvoltage protection on 5 V/12 V rails in smart home hubs and set-top boxes. IC Role / Device Role / Timing Role: Fast-acting shunt device across regulated output, triggered only during fault conditions (e.g., regulator failure). Use Value: Prevents catastrophic failure of USB ports and memory ICs by limiting fault voltage to 22.5 V for durations up to 1 ms without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16CA | Lower PPPM = 600 W; SMC package (smaller footprint); VC = 26.0 V @ 23.1 A | Better suited for space-constrained consumer PCBs where 1500 W is not required | Select SMBJ16CA when board area is limited and surge threat level is IEC 61000-4-5 Level 2–3 only |
| 1.5KE16C | Same electrical specs but commercial-grade (non-AEC-Q101); E3 suffix only (no HE3_B/C qualification) | Acceptable for industrial or telecom equipment without automotive qualification mandates | Choose 1.5KE16C for cost-sensitive non-automotive designs where AEC-Q101 is not required |
Compared with 1.5KE16CAHE3_B/C, SMBJ16CA trades peak power and thermal robustness for compact size, while 1.5KE16C retains identical clamping performance but omits automotive qualification - making the HE3_B/C variant uniquely suitable for AEC-Q101–mandated vehicle subsystems requiring proven reliability under thermal and mechanical stress.
Availability
1.5KE16CAHE3_B/C is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom line surge suppression requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for 1.5KE16CAHE3_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 high-reliability diodes, MOSFETs, and passive components for demanding industrial and automotive applications.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments, emphasizing AEC-Q101 qualification, stable clamping under repetitive surges, and compatibility with automated assembly processes.
FAQ
What is the breakdown voltage tolerance for 1.5KE16CAHE3_B/C?
The 1.5KE16CAHE3_B/C has a specified breakdown voltage range of 15.2 V to 16.8 V at test current IT = 1.0 mA, per the Vishay datasheet Document Number 88301. This ±5% tolerance ensures consistent clamping onset across production lots and supports predictable circuit protection design without margin over-engineering.
Is 1.5KE16CAHE3_B/C AEC-Q101 qualified?
Yes, 1.5KE16CAHE3_B/C is AEC-Q101 qualified, as confirmed in Note (2) of the Vishay datasheet (Rev. 09-Aug-2022). The HE3_B/C suffix explicitly denotes AEC-Q101 qualification for devices ranging from 1.5KE6.8CAHE3_B to 1.5KE220CAHE3_B, covering the full bidirectional 1.5KECA family including this part.
What is the clamping voltage of 1.5KE16CAHE3_B/C at its rated peak pulse current?
The clamping voltage VC of 1.5KE16CAHE3_B/C is 22.5 V at IPPM = 66.7 A, measured using the standard 10/1000 µs double-exponential surge waveform. This value represents the maximum voltage imposed on protected circuitry during a full 1500 W transient event and is critical for ensuring downstream ICs remain within absolute maximum ratings.
Does 1.5KE16CAHE3_B/C have polarity markings on the package?
No, 1.5KE16CAHE3_B/C does not have polarity markings because it is a bidirectional TVS diode. As stated in the datasheet, "no marking on bidirectional types." Its symmetrical construction allows installation in either orientation, eliminating risk of incorrect placement during automated assembly or manual rework.
What is the thermal resistance from junction to lead (RθJL) for 1.5KE16CAHE3_B/C?
The junction-to-lead thermal resistance RθJL for 1.5KE16CAHE3_B/C is 15.4 °C/W, per the Thermal Characteristics table in the Vishay datasheet. This low value enables effective heat conduction from the silicon die to PCB copper through the leads, supporting sustained operation at elevated ambient temperatures without additional heatsinking.
1.5KE16CAHE3_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):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 70A
- 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
1.5KE16CAHE3_B/C FAQ
1.How can I place an order for 1.5KE16CAHE3_B/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE16CAHE3_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 1.5KE16CAHE3_B/C reliable?
The price and inventory of 1.5KE16CAHE3_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 1.5KE16CAHE3_B/C is usually 5 days.
3.What payment methods are accepted for 1.5KE16CAHE3_B/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE16CAHE3_B/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE16CAHE3_B/C?
1.5KE16CAHE3_B/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE16CAHE3_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 1.5KE16CAHE3_B/C?
For technical support, including 1.5KE16CAHE3_B/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE16CAHE3_B/C requirements.
6.How does Aetrix verify that 1.5KE16CAHE3_B/C is sourced from the original manufacturer or authorized distributors?
All 1.5KE16CAHE3_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 1.5KE16CAHE3_B/C meets industry standards.
7.What is the process for return or replacement of 1.5KE16CAHE3_B/C?
All 1.5KE16CAHE3_B/C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE16CAHE3_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 1.5KE16CAHE3_B/C part is unused and in its original packaging.
Return procedure for 1.5KE16CAHE3_B/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE16CAHE3_B/C Tags
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