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Vishay General Semiconductor - Diodes Division 1.5KE16CHE3/54
- Part No.:
- 1.5KE16CHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE16CHE3/54.pdf
- Description:
- TVS DIODE 12.9VWM 23.5VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:8,502
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Product details
Overview
1.5KE16CHE3/54 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 16 V breakdown voltage (VBR = 15.2–16.8 V at IT = 1.0 mA), 13.6 V maximum working voltage (VWM), 22.5 V clamping voltage (VC) at 66.7 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used to safeguard MOSFETs, ICs, and sensor interfaces in industrial power supplies and automotive ECUs.
For engineers reviewing the 1.5KE16CHE3/54 datasheet, 1.5KE16CHE3/54 pinout, 1.5KE16CHE3/54 application, or 1.5KE16CHE3/54 equivalent, this part delivers verified transient suppression performance with AEC-Q101 qualification (HE3 suffix), RoHS-compliant matte tin-plated leads, and JEDEC-standard Case Style 1.5KE packaging suitable for high-reliability board-level surge protection design.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: it remains high-impedance below VWM (13.6 V), avalanches sharply at VBR (15.2–16.8 V), and clamps transients to ≤22.5 V at 66.7 A. Its glass-passivated junction enables sub-nanosecond response time (<1 ns) and low incremental surge resistance.
Rated for -55 °C to +175 °C junction temperature, it supports repetitive surge events at 0.01% duty cycle and withstands 200 A non-repetitive forward surge (8.3 ms half-sine). Thermal resistance is 15.4 °C/W (junction-to-lead), enabling direct PCB trace heat sinking without external heatsinks in moderate-power applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 15.2 V / 16.8 V at 1.0 mA - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| VWM | 13.6 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 22.5 V at 66.7 A - clamping voltage limits downstream component stress during 10/1000 µs surges |
| PPPM | 1500 W - peak transient power handling capacity per industry-standard 10/1000 µs waveform |
| IFSM | 200 A - non-repetitive forward surge rating (8.3 ms half-sine) for inrush or fault-current robustness |
| TJ max. | +175 °C - extended junction temperature rating supports under-hood automotive and industrial environments |
| RθJL | 15.4 °C/W - low junction-to-lead thermal resistance enables effective self-heating management via PCB copper |
Pinout & Package
Package: JEDEC Case Style 1.5KE - molded epoxy body with axial leads, UL 94 V-0 rated, 0.375" (9.5 mm) lead length, 0.042" (1.07 mm) lead diameter. Cathode identified by color band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Connected to lower-potential side of protected circuit; enables low-VF (3.5 V @ 100 A) conduction during surge |
| Cathode | Current exit point in forward bias; marked with band | Connected to higher-potential rail (e.g., VCC); provides precise clamping reference to ground or return path |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance (±5%) and long-term reliability under thermal cycling and humidity |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive electronics per stress test requirements including HTOL, TC, UHAST, and ESD |
| 1500 W peak pulse power | Handles IEC 61000-4-5 Level 4 (4 kV) surge events without degradation when properly mounted |
| Sub-nanosecond response time | Clamps transients before sensitive ICs experience damaging overvoltage - critical for protecting microcontrollers and CAN transceivers |
| RoHS-compliant matte tin plating | Meets J-STD-002 solderability standards and JESD 201 Class 2 whisker resistance for high-reliability assembly |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump (ISO 16750-2) and alternator ripple-induced transients. IC Role / Device Role / Timing Role: Shunt clamping device placed between VBAT and chassis ground to clamp surges above 13.6 V. Use Value: Limits voltage seen by MCU power supply to ≤22.5 V during 100 A/1500 W transients, preventing brownout or latch-up. | Use Scenario: Safeguarding analog front-end inputs of pressure/temperature sensors connected to long harnesses in factory automation. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS placed across sensor supply and ground to suppress ESD and inductive switching noise. Use Value: Clamps fast-rising transients (e.g., relay coil flyback) before they couple into ADC reference or op-amp inputs, preserving measurement accuracy. |
| DC Power Supply Input Stage | Telecom Line Card Surge Protection |
Use Scenario: Secondary overvoltage protection after input filter stage in 24 V industrial SMPS units. IC Role / Device Role / Timing Role: Final-line TVS connected between rectified DC bus and ground to absorb residual surge energy not filtered upstream. Use Value: Absorbs up to 1500 W for 1 ms without failure, maintaining system uptime during lightning-induced grid disturbances. | Use Scenario: Protecting Ethernet PHY or RS-485 transceivers on telecom line cards exposed to induced surges from nearby AC wiring. IC Role / Device Role / Timing Role: Unidirectional TVS placed on VCC rail and data line pairs to clamp common-mode and differential surges. Use Value: Enables compliance with GR-1089-CORE Level 3 (2 kV ring wave) while maintaining <1 pF parasitic capacitance impact on signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A | Lower PPPM (600 W), smaller SMB package (vs. axial 1.5KE), VC = 26.0 V @ 24.3 A | Preferred for space-constrained PCBs; less suited for high-energy surges requiring >1 kW handling | Select SMBJ16A only when board area is critical and surge threat level is ≤IEC 61000-4-5 Level 2. |
| 1.5KE16A-E3/54 | Same electrical specs and package, but commercial-grade (non-AEC-Q101) with E3 suffix only | Acceptable for consumer/industrial use where automotive qualification is not required | Choose 1.5KE16A-E3/54 for cost-sensitive non-automotive designs; retain 1.5KE16CHE3/54 for AEC-Q101 compliance. |
Compared with SMBJ16A and 1.5KE16A-E3/54, the 1.5KE16CHE3/54 uniquely combines AEC-Q101 qualification, 1500 W surge capability, and axial-leaded thermal performance - making it the only option among the three validated for under-hood automotive power rail protection with full ISO 16750-2 compliance margin.
Availability
1.5KE16CHE3/54 is available at Aetrix Electronics and suitable for automotive ECU design, industrial power supply input stages, and telecom line card surge protection requiring stable component supply across multi-year production cycles.
Supply support for 1.5KE16CHE3/54 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 automotive-grade validation.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where sustained surge immunity and long-term parametric stability are mandatory.
FAQ
What is the clamping voltage of the 1.5KE16CHE3/54 at its rated peak pulse current?
The 1.5KE16CHE3/54 has a maximum clamping voltage (VC) of 22.5 V at its rated peak pulse current of 66.7 A, measured using the standard 10/1000 µs waveform. This value ensures downstream components like microcontrollers or gate drivers remain within safe operating voltage limits during surge events. The 1.5KE16CHE3/54 achieves this clamping performance while maintaining low incremental surge resistance, directly contributing to its 1500 W peak pulse power rating.
Is the 1.5KE16CHE3/54 qualified for automotive applications?
Yes, the 1.5KE16CHE3/54 is AEC-Q101 qualified, as confirmed by its HE3 suffix and documentation in Vishay's 88301 datasheet (Revision 09-Aug-2022). This qualification covers stress tests including high-temperature operating life, temperature cycling, unbiased highly accelerated stress testing, and electrostatic discharge. The 1.5KE16CHE3/54 is therefore approved for use in automotive powertrain, body control, and infotainment systems where reliability under thermal and electrical stress is critical.
What does the "HE3/54" suffix mean in 1.5KE16CHE3/54?
The "HE3" suffix indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance; "54" denotes the preferred package code for 13-inch paper tape and reel packaging containing 1400 units. This ordering format ensures traceable, automotive-grade supply chain alignment. The 1.5KE16CHE3/54 is distinct from commercial-grade variants like 1.5KE16A-E3/54, which lack AEC-Q101 validation despite identical electrical specs.
Can the 1.5KE16CHE3/54 be used in bidirectional configurations?
No, the 1.5KE16CHE3/54 is a unidirectional TVS diode, as indicated by its "A" suffix (not "CA"). Bidirectional versions in the 1.5KE family use the "CA" suffix (e.g., 1.5KE16CA) and are only available up to 220 V VBR. The 1.5KE16CHE3/54 must be installed with correct polarity - cathode toward the higher-potential rail - to function as intended. Using it in reverse-biased AC applications would result in immediate failure due to forward conduction during negative half-cycles.
What is the maximum junction temperature rating for the 1.5KE16CHE3/54?
The 1.5KE16CHE3/54 has a maximum junction temperature (TJ) rating of +175 °C, as specified in the Vishay 88301 datasheet. This high-temperature capability supports operation in under-hood automotive environments and enclosed industrial enclosures. Derating begins above 25 °C ambient, with power dissipation decreasing linearly per the thermal derating curve in Figure 5 - enabling reliable 6.5 W continuous operation at TL = 75 °C with proper PCB copper land design.
1.5KE16CHE3/54 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 12.9V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 23.5V
- Current - Peak Pulse (10/1000µs):
- 63.8A
- 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
1.5KE16CHE3/54 FAQ
1.How can I place an order for 1.5KE16CHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE16CHE3/54 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 1.5KE16CHE3/54 reliable?
The price and inventory of 1.5KE16CHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE16CHE3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE16CHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE16CHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE16CHE3/54?
1.5KE16CHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE16CHE3/54 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 1.5KE16CHE3/54?
For technical support, including 1.5KE16CHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE16CHE3/54 requirements.
6.How does Aetrix verify that 1.5KE16CHE3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE16CHE3/54 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 1.5KE16CHE3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE16CHE3/54?
All 1.5KE16CHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE16CHE3/54, 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 1.5KE16CHE3/54 part is unused and in its original packaging.
Return procedure for 1.5KE16CHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE16CHE3/54 Tags
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