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Vishay General Semiconductor - Diodes Division 1.5KE160A-E3/51
- Part No.:
- 1.5KE160A-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE160A-E3/51.pdf
- Description:
- TVS DIODE 136VWM 219VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:4,097
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Product details
Overview
1.5KE160A-E3/51 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 1500 W peak pulse power rating (10/1000 µs), 136 V standoff voltage (VWM), 152–168 V breakdown voltage (VBR), 219 V maximum clamping voltage (VC) at 6.8 A peak pulse current, and operates across –55 °C to +175 °C junction temperature range.
For engineers reviewing the 1.5KE160A-E3/51 datasheet, 1.5KE160A-E3/51 pinout, 1.5KE160A-E3/51 application, or 1.5KE160A-E3/51 equivalent, this part serves as a robust, glass-passivated, RoHS-compliant TVS solution for automotive power supply protection, industrial sensor interface surge hardening, and telecom line transient suppression where fast response (<1 ns), low clamping ratio, and high surge current tolerance are critical.
Technical Context
This unidirectional TVS diode uses a silicon avalanche junction with glass passivation to deliver precise voltage clamping during ESD, lightning-induced surges, and inductive switching transients. Its 1500 W peak pulse power rating is defined per 10/1000 µs waveform with 0.01 % duty cycle, and it exhibits a low incremental surge resistance enabling effective energy diversion without thermal runaway.
The device supports unidirectional polarity only (cathode marked by band), has a maximum forward voltage of 5.0 V at 100 A, and is rated for 200 A non-repetitive forward surge current (8.3 ms half-sine). Thermal resistance is 15.4 °C/W junction-to-lead, supporting reliable operation under pulsed stress in compact PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 136 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin. |
| VBR min/max | 152 V / 168 V - Breakdown occurs within this range at 1 mA test current; ensures consistent turn-on threshold. |
| VC @ IPPM | 219 V - Clamped voltage at 6.8 A peak pulse current; determines protected circuit's maximum transient exposure. |
| PPPM | 1500 W - Peak pulse power handling (10/1000 µs); enables robust protection against IEC 61000-4-5 Level 4 surges. |
| IPPM | 6.8 A - Peak pulse current corresponding to VC; used to size series impedance and verify clamp margin. |
| TJ max | +175 °C - Maximum junction temperature; supports under-hood automotive and high-ambient industrial use. |
| RθJL | 15.4 °C/W - Junction-to-lead thermal resistance; informs heatsinking requirements for repetitive surge events. |
Pinout & Package
Package: Case Style 1.5KE - molded epoxy body with matte tin-plated leads; meets UL 94 V-0 flammability rating and J-STD-002 solderability standards. Cathode indicated by color band on case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Connected to lower-potential side (e.g., ground or return path) in unidirectional protection configuration. |
| Cathode | Current exit point in forward bias; clamping node in reverse bias | Connected to protected line (e.g., 12 V rail or signal trace); absorbs transient energy when voltage exceeds VWM. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under humidity and thermal cycling stress. |
| 1500 W peak pulse power (10/1000 µs) | Provides immunity to severe transients including ISO 7637-2 Pulse 5a/b and IEC 61000-4-5 combination wave surges. |
| Clamping time <1 ns | Responds faster than MOVs or polymer-based protectors, preventing damage to sensitive ICs before voltage overshoot peaks. |
| RoHS-compliant, commercial grade (E3 suffix) | Meets environmental compliance requirements without lead-free reflow compatibility compromises. |
| Low incremental surge resistance | Minimizes voltage overshoot during high-current transients, improving protection margin for downstream components. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp positive-going surges above VWM. Use Value: Limits transient voltage to ≤219 V during 6.8 A pulses, preserving MCU, CAN transceivers, and analog front-ends. | Use Scenario: Shielding 4–20 mA current loop inputs in PLC modules from field wiring surges and ESD. IC Role / Device Role / Timing Role: Series-connected TVS on input line to absorb induced lightning energy before reaching op-amp input stage. Use Value: Fast <1 ns response prevents latch-up in precision amplifiers; 175 °C rating supports operation in sealed enclosures. |
| Telecom Line Surge Suppression | Consumer Power Adapter Input Stage |
Use Scenario: Secondary-side protection on PoE-powered Ethernet switches exposed to induced surges on twisted-pair cabling. IC Role / Device Role / Timing Role: Unidirectional clamp on 48 V DC bias line to suppress common-mode transients coupled from data pairs. Use Value: 1500 W rating handles repeated 10/1000 µs surges; low leakage (<1 µA at 136 V) avoids standby power loss. | Use Scenario: Overvoltage safeguard on AC/DC adapter output rails feeding USB-C PD controllers or microcontrollers. IC Role / Device Role / Timing Role: Final-stage TVS on regulated 5 V/9 V/12 V outputs to prevent damage from internal regulator fault or capacitor failure. Use Value: 219 V clamping ensures no downstream component sees >219 V even during worst-case 1500 W surge event. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ160A | Same 160 V nominal breakdown, but 400 W peak power (SMA package); lower IPPM (3.6 A) and higher VC (259 V). | Lower power rating limits suitability for ISO 7637-2 Pulse 5; better for space-constrained consumer designs. | Select when board area is constrained and surge severity is moderate (IEC 61000-4-2/4-4 only). |
| ON Semiconductor 1.5SMC160A | Identical 1.5KE package and 1500 W rating; VBR range 152–168 V matches exactly; VC = 219 V at 6.8 A. | Functionally interchangeable with identical electrical specs and thermal performance; qualified to same JEDEC standards. | Drop-in alternative with validated supply chain continuity; suitable for dual-sourcing in automotive Tier 1 BOMs. |
Compared with 1.5KE160A-E3/51, SMAJ160A offers smaller footprint but reduced surge capability, while 1.5SMC160A delivers identical protection performance in an alternate branded 1.5KE package-making it ideal for second-source assurance without layout change.
Availability
1.5KE160A-E3/51 is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and telecom infrastructure requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1.5KE160A-E3/51 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and automotive-grade qualification.
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 thermal stability are mission-critical.
FAQ
What is the clamping voltage of the 1.5KE160A-E3/51 under a 10/1000 µs surge?
The 1.5KE160A-E3/51 clamps to a maximum of 219 V when subjected to its rated peak pulse current of 6.8 A using the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and defines the upper voltage limit imposed on protected circuitry during transient events. The clamping behavior remains stable across its operational temperature range from –55 °C to +175 °C, making 1.5KE160A-E3/51 suitable for under-hood automotive deployments.
Is the 1.5KE160A-E3/51 RoHS compliant and lead-free?
Yes, the 1.5KE160A-E3/51 carries the "E3" suffix, indicating full RoHS compliance and commercial-grade qualification. Its matte tin-plated leads meet J-STD-002 solderability requirements and pass JESD 201 Class 1A whisker testing. The molding compound complies with UL 94 V-0 flammability standards, and no lead or restricted substances exceed EU RoHS limits. This makes 1.5KE160A-E3/51 appropriate for environmentally regulated consumer, industrial, and computing applications.
Can the 1.5KE160A-E3/51 be used in bidirectional configurations?
No, the 1.5KE160A-E3/51 is a unidirectional TVS diode only. Bidirectional variants in the 1.5KE family carry the "CA" suffix (e.g., 1.5KE160CA), and the datasheet explicitly states that 1.5KE250A through 1.5KE540A-including 1.5KE160A-are unidirectional only. Using 1.5KE160A-E3/51 in bidirectional circuits would result in forward conduction during negative transients, potentially damaging the device or failing to protect the system.
What is the maximum junction temperature rating for the 1.5KE160A-E3/51?
The 1.5KE160A-E3/51 has a maximum junction temperature (TJ) rating of +175 °C, with a corresponding storage temperature range of –55 °C to +175 °C. This high-temperature capability supports deployment in engine compartments, industrial motor drives, and enclosed power supplies where ambient temperatures exceed 105 °C. Its thermal resistance from junction to lead (RθJL) is 15.4 °C/W, enabling effective heat transfer to PCB copper when mounted with adequate pad area.
How does the 1.5KE160A-E3/51 compare to metal-oxide varistors (MOVs) for surge protection?
The 1.5KE160A-E3/51 offers significantly faster response time (<1 ns vs. ~20–50 ns for MOVs), tighter voltage tolerance (±5 % VBR vs. ±10–20 % for MOVs), and no degradation after repeated surges-unlike MOVs which wear out. While MOVs handle higher total energy, the 1.5KE160A-E3/51 excels in precision clamping for sensitive electronics. For hybrid protection, 1.5KE160A-E3/51 is often paired upstream of an MOV to provide fast initial clamping and extend MOV life. Its 1500 W rating is optimized for short-duration transients, not sustained overvoltage.
1.5KE160A-E3/51 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:
- 1
- Bidirectional Channels:
- -
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE160A-E3/51 FAQ
1.How can I place an order for 1.5KE160A-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE160A-E3/51 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 1.5KE160A-E3/51 reliable?
The price and inventory of 1.5KE160A-E3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE160A-E3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KE160A-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE160A-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE160A-E3/51?
1.5KE160A-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE160A-E3/51 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 1.5KE160A-E3/51?
For technical support, including 1.5KE160A-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE160A-E3/51 requirements.
6.How does Aetrix verify that 1.5KE160A-E3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE160A-E3/51 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 1.5KE160A-E3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE160A-E3/51?
All 1.5KE160A-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE160A-E3/51, 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 1.5KE160A-E3/51 part is unused and in its original packaging.
Return procedure for 1.5KE160A-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE160A-E3/51 Tags
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