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Vishay General Semiconductor - Diodes Division 1.5KE160CAHE3/51
- Part No.:
- 1.5KE160CAHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE160CAHE3/51.pdf
- Description:
- TVS DIODE 136VWM 219VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:9,219
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Product details
Overview
1.5KE160CAHE3/51 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 1500 W peak pulse power rating (10/1000 µs), 136 V stand-off voltage (VWM), 168 V maximum breakdown voltage (VBR), clamps to ≤219 V at 6.8 A peak pulse current, and operates across –55 °C to +175 °C junction temperature - deployed in automotive power supply rails and industrial sensor interfaces.
For engineers reviewing the 1.5KE160CAHE3/51 datasheet, 1.5KE160CAHE3/51 pinout, 1.5KE160CAHE3/51 application, or 1.5KE160CAHE3/51 equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, 1.5KE package thermal performance (RθJL = 15.4 °C/W), and compliance with UL 497B surge protector classification.
Technical Context
This bi-directional TVS diode uses a glass passivated silicon junction to achieve sub-nanosecond response time (<1 ns) and low incremental surge resistance. Its symmetrical clamping behavior applies identically in both polarities, eliminating polarity marking on the case and enabling direct placement across AC-coupled or floating signal paths.
The device delivers 1500 W transient suppression per JEDEC-standard 10/1000 µs waveform at TA = 25 °C, with derating above 25 °C per Fig. 2. Thermal resistance from junction to lead is 15.4 °C/W, supporting reliable operation under repetitive surge conditions when mounted with ≥0.375" (9.5 mm) lead length.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 1500 W - sustains single high-energy transients without failure |
| Stand-Off Voltage (VWM) | 136 V - maximum continuous reverse voltage before conduction begins |
| Breakdown Voltage (VBR) | 152–168 V at 1 mA - precise voltage threshold for clamping activation |
| Clamping Voltage (VC) | ≤219 V at IPPM = 6.8 A - limits downstream voltage during surge |
| Operating Temperature | –55 °C to +175 °C - supports under-hood automotive and industrial environments |
| Package Thermal Resistance | RθJL = 15.4 °C/W - enables effective heat transfer to PCB leads |
| AEC-Q101 Qualified | Yes - validated for automotive electronic systems per stress test requirements |
Pinout & Package
Case Style 1.5KE: molded epoxy body with matte tin-plated leads; RoHS-compliant, AEC-Q101 qualified (HE3 suffix); meets UL 94 V-0 flammability rating; no polarity marking (bi-directional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Bi-directional terminals - interchangeable; no cathode band; conducts equally in either direction during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling |
| 1500 W peak pulse power | Protects against severe transients including ISO 7637-2 Pulse 5a (load dump) in 12 V systems |
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics applications |
| UL 497B recognition (QVGQ2) | Meets safety standard for telecom and industrial surge protector classification |
| Low clamping ratio (VC/VBR ≈ 1.3) | Minimizes voltage overshoot during clamping - critical for protecting 150 V-rated MOSFETs and gate drivers |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump transients up to 120 V sustained for 400 ms. IC Role / Device Role / Timing Role: Bi-directional TVS placed across input rail to clamp surges before they reach DC/DC converters and microcontrollers. Use Value: Clamps to ≤219 V at 6.8 A while maintaining 136 V stand-off - prevents damage to 150 V-rated power FETs and LDOs. |
Use Scenario: Shielding 4–20 mA current loop inputs in PLC analog modules from ESD and inductive switching noise. IC Role / Device Role / Timing Role: TVS connected differentially across signal pair to suppress common-mode transients without affecting loop accuracy. Use Value: Sub-nanosecond response ensures clamping occurs before sensitive op-amps or ADC front-ends are overstressed. |
| Telecom Line Interface Protection | AC-DC Adapter Input Stage |
Use Scenario: Safeguarding Ethernet PHY interface transformers and magnetics from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Bi-directional TVS placed across secondary side of isolation transformer to absorb coupled common-mode energy. Use Value: 1500 W rating handles 8/20 µs lightning surges per IEC 61000-4-5 Level 4 without degradation. |
Use Scenario: Suppressing line-to-line and line-to-ground transients entering offline SMPS inputs in consumer adapters. IC Role / Device Role / Timing Role: TVS installed across bridge rectifier output to clamp differential-mode surges before bulk capacitor and controller IC. Use Value: 136 V VWM allows safe operation with 115/230 VAC inputs after rectification; 219 V VC protects 250 V-rated electrolytics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CA | 600 W rating, DO-214AA package, lower RθJL (30 °C/W), VC = 243 V @ 2.5 A | Lower power handling; suited for space-constrained PCBs where 1500 W is not required | Select SMBJ150CA only if system-level surge testing confirms <600 W compliance and layout allows smaller footprint |
| 1.5KE150CAHE3/51 | 150 V VBR min, 128 V VWM, VC = 207 V @ 7.2 A - lower clamping voltage but reduced stand-off margin | Better clamping for 135 V systems; less margin against normal operating overvoltage | Choose 1.5KE150CAHE3/51 when tighter clamping is prioritized over higher VWM margin in regulated 130–140 V rails |
Compared with 1.5KE150CAHE3/51 and SMBJ150CA, the 1.5KE160CAHE3/51 offers the highest VWM (136 V) among these three, delivering superior immunity to benign overvoltage while retaining strong 219 V clamping - ideal for unregulated or wide-input automotive and industrial supplies.
Availability
1.5KE160CAHE3/51 is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface design, and telecom infrastructure requiring stable component supply with AEC-Q101 assurance and UL 497B recognition.
Supply support for 1.5KE160CAHE3/51 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 robustness, AEC-Q101 compliance, and UL recognition are mandatory.
FAQ
What is the clamping voltage of the 1.5KE160CAHE3/51 at its rated peak pulse current?
The 1.5KE160CAHE3/51 clamps to a maximum of 219 V at its specified peak pulse current of 6.8 A (10/1000 µs waveform). This value is measured per JEDEC standard and reflects the actual voltage seen by protected circuitry during a full-power transient event - critical for verifying compatibility with downstream 200 V-rated components.
Is the 1.5KE160CAHE3/51 suitable for automotive applications?
Yes, the 1.5KE160CAHE3/51 is AEC-Q101 qualified (per note 2 on page 3 of Vishay document 88301) and explicitly listed for automotive use in the datasheet's Mechanical Data section. Its –55 °C to +175 °C operating range, glass passivated junction, and UL 497B recognition make it appropriate for engine control units, body electronics, and ADAS power domains.
How does the bi-directional configuration of the 1.5KE160CAHE3/51 affect its mounting and circuit integration?
The 1.5KE160CAHE3/51 has no polarity marking and identical electrical behavior in both directions, so it can be mounted without orientation constraints. This simplifies PCB layout for AC-coupled lines, transformer secondaries, or floating bus interfaces - unlike uni-directional variants such as 1.5KE160AHE3/51, which require cathode alignment.
What is the thermal resistance from junction to lead (RθJL) for the 1.5KE160CAHE3/51, and why does it matter?
The 1.5KE160CAHE3/51 has a typical RθJL of 15.4 °C/W, measured with 0.375" (9.5 mm) lead length. This low value enables efficient heat dissipation into PCB copper during repetitive surge events - essential for maintaining reliability in applications like motor drive feedback lines or CAN bus protection where multiple transients may occur.
Does the 1.5KE160CAHE3/51 meet UL safety standards for surge protectors?
Yes, the 1.5KE160CAHE3/51 carries Underwriters Laboratories recognition QVGQ2 under UL 497B for protectors, as confirmed in the "Notes" section of Vishay document 88301. This certification validates its suitability in safety-critical telecom and industrial surge protection circuits requiring third-party safety approval.
1.5KE160CAHE3/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 136V
- Voltage - Breakdown (Min):
- 152V
- Voltage - Clamping (Max) @ Ipp:
- 219V
- Current - Peak Pulse (10/1000µs):
- 6.8A
- 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
1.5KE160CAHE3/51 FAQ
1.How can I place an order for 1.5KE160CAHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE160CAHE3/51 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 1.5KE160CAHE3/51 reliable?
The price and inventory of 1.5KE160CAHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE160CAHE3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KE160CAHE3/51?
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1.5KE160CAHE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE160CAHE3/51 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 1.5KE160CAHE3/51?
For technical support, including 1.5KE160CAHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE160CAHE3/51 requirements.
6.How does Aetrix verify that 1.5KE160CAHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE160CAHE3/51 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 1.5KE160CAHE3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE160CAHE3/51?
All 1.5KE160CAHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE160CAHE3/51, 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 1.5KE160CAHE3/51 part is unused and in its original packaging.
Return procedure for 1.5KE160CAHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE160CAHE3/51 Tags
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