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Vishay General Semiconductor - Diodes Division 1.5KE160AHE3/51
- Part No.:
- 1.5KE160AHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE160AHE3/51.pdf
- Description:
- TVS DIODE 136VWM 219VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:3,029
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Product details
Overview
1.5KE160AHE3/51 from Vishay General Semiconductor is a uni-directional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in power rails and signal lines. It features a 152 V to 168 V breakdown voltage (VBR) at 1 mA, 136 V maximum stand-off voltage (VWM), 219 A peak pulse current (IPPM) under 10/1000 µs waveform, and 1500 W peak pulse power dissipation - deployed in automotive ECUs, industrial I/O modules, and telecom power supplies.
For engineers reviewing the 1.5KE160AHE3/51 datasheet, 1.5KE160AHE3/51 pinout, 1.5KE160AHE3/51 application, or 1.5KE160AHE3/51 equivalent, key selection criteria include clamping voltage (219 V at IPPM), AEC-Q101 qualification, RoHS-compliant HE3 suffix, and 175 °C maximum junction temperature - critical for high-reliability transient suppression in harsh environments.
Technical Context
This TVS diode operates as a uni-directional avalanche clamp with glass-passivated junction technology, enabling sub-nanosecond response time (<1 ns) and low incremental surge resistance. Its 1500 W peak pulse power rating is defined per 10/1000 µs waveform at 0.01% duty cycle, with thermal derating above 25 °C ambient per Fig. 2.
The device exhibits a 0.108 %/°C temperature coefficient of VBR, stable leakage current ≤1.0 µA at VWM, and forward voltage of 5.0 V at 100 A - confirming suitability for DC power rail protection where low clamping overshoot and predictable thermal behavior are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 152 V to 168 V at 1 mA test current - defines reliable avalanche initiation threshold for overvoltage triggering |
| VWM | 136 V maximum - ensures no conduction during normal 120–130 V nominal DC operation |
| VC at IPPM | 219 V clamping voltage at 219 A peak pulse - limits downstream voltage stress during transients |
| PPPM | 1500 W peak pulse power - sustains single 10/1000 µs surges without failure |
| IFSM | 200 A non-repetitive forward surge current - handles inrush or fault currents in power circuits |
| TJ max. | 175 °C - supports operation in under-hood automotive or industrial enclosures |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
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, 0.042" (1.07 mm) lead diameter.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Connected to ground or low-side return path in uni-directional clamp configuration |
| Cathode | Current exit point in forward bias; avalanche terminal in reverse bias | Connected to protected line (e.g., 12 V rail); color band denotes cathode end per JEDEC standard |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable, repeatable avalanche characteristics and long-term reliability under repeated surge stress |
| 1500 W peak pulse power (10/1000 µs) | Provides robust protection against ISO 7637-2 Pulse 5a/b and IEC 61000-4-5 Level 4 surges |
| AEC-Q101 qualification | Validates performance across -55 °C to +175 °C with HTOL, TC, and HTRB testing for automotive use |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker resistance and J-STD-002 solderability standards |
| Low clamping ratio (VC/VBR ≈ 1.30) | Minimizes overvoltage margin between trigger and clamp, reducing stress on downstream ICs |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting 12 V/24 V battery-fed control modules from load dump and alternator transients. IC Role / Device Role / Timing Role: Primary uni-directional TVS clamp placed between battery rail and DC-DC input stage. Use Value: Clamps to 219 V within <1 ns, limiting voltage seen by LDOs and microcontrollers to safe levels during 120 V/350 ms load dump events. |
Use Scenario: Safeguarding analog input channels of programmable logic controllers against field-wiring induced surges. IC Role / Device Role / Timing Role: Front-end transient suppressor on 4–20 mA loop or ±10 V analog inputs. Use Value: Absorbs 1500 W surges while maintaining ≤1.0 µA leakage at 136 V, preserving signal integrity and measurement accuracy. |
| Telecom DC Power Entry | Consumer Appliance Motor Drive |
|
Use Scenario: Input-stage protection for AC/DC power supplies feeding base station radios or optical line terminals. IC Role / Device Role / Timing Role: Bulk transient suppressor on 48 V DC input before primary filter capacitors. Use Value: Withstands repetitive 10/1000 µs surges up to 1500 W, preventing capacitor overvoltage and MOSFET gate oxide damage. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines or HVAC blowers. IC Role / Device Role / Timing Role: Flyback energy clamp across motor terminals or H-bridge freewheeling path. Use Value: Dissipates 200 A inductive kickback pulses with 5.0 V forward voltage, minimizing heat generation during frequent switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ160A | Lower PPPM (600 W), smaller SMB package (vs. DO-201AB), 152–168 V VBR range identical | Not AEC-Q101 qualified; suited for space-constrained consumer designs, not automotive under-hood | Select when board area is limited and 600 W surge rating suffices; verify thermal margin with RθJA = 100 °C/W |
| 1.5KE160A-E3/54 | Same electrical specs and DO-201AB package, but commercial-grade (non-AEC-Q101), E3 suffix only (no HE3) | Lacks automotive qualification and JESD 201 Class 2 whisker resistance; intended for industrial/commercial use | Choose for cost-sensitive non-automotive applications where AEC-Q101 is not mandated |
Compared with 1.5KE160AHE3/51, SMBJ160A trades surge capacity and qualification for compactness, while 1.5KE160A-E3/54 retains identical protection performance but omits automotive reliability validation - making the HE3 variant essential for Tier-1 automotive BOMs requiring traceable AEC-Q101 compliance.
Availability
1.5KE160AHE3/51 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, and telecom power supply designs requiring stable component supply, full AEC-Q101 traceability, and long-lifecycle support.
Supply support for 1.5KE160AHE3/51 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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The 1.5KE series was engineered specifically for high-energy transient suppression in demanding DC power systems, emphasizing ruggedness, consistent clamping, and qualification for mission-critical applications.
FAQ
What is the breakdown voltage tolerance for 1.5KE160AHE3/51?
The 1.5KE160AHE3/51 has a specified breakdown voltage (VBR) range of 152 V to 168 V at 1 mA test current, representing ±5% tolerance around the nominal 160 V rating. This tight tolerance ensures predictable triggering across production lots and temperature ranges, critical for coordinated protection schemes with downstream overvoltage detectors.
Is 1.5KE160AHE3/51 suitable for bi-directional transient protection?
No, 1.5KE160AHE3/51 is a uni-directional TVS diode, indicated by the "A" suffix and cathode band marking. For bi-directional protection, Vishay offers the 1.5KE160CA variant. Using 1.5KE160AHE3/51 in AC or floating applications risks forward conduction and failure; always match polarity to circuit topology.
What does the "HE3/51" suffix signify in 1.5KE160AHE3/51?
The "HE3" denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance; "51" specifies packaging in 13" paper tape and reel with 1400 units per reel. This distinguishes it from commercial-grade E3 variants and confirms compliance for automotive production environments.
How does the clamping voltage of 1.5KE160AHE3/51 compare to its breakdown voltage?
At its rated 219 A peak pulse current (IPPM), the 1.5KE160AHE3/51 clamps to 219 V - yielding a clamping ratio (VC/VBR) of approximately 1.30. This low ratio reflects efficient avalanche conduction and minimal voltage overshoot, directly protecting downstream components rated for ≤220 V absolute maximum.
Can 1.5KE160AHE3/51 be used in parallel for higher surge handling?
While the 1.5KE160AHE3/51 datasheet notes TVS diodes can be used in parallel to increase peak power ratings, doing so requires matched VBR devices and careful layout to ensure current sharing. Unmatched units may cause one 1.5KE160AHE3/51 to absorb disproportionate energy and fail prematurely - derating and thermal coupling must be modeled.
1.5KE160AHE3/51 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE160AHE3/51 FAQ
1.How can I place an order for 1.5KE160AHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE160AHE3/51 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 1.5KE160AHE3/51 reliable?
The price and inventory of 1.5KE160AHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE160AHE3/51 is usually 5 days.
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Once your 1.5KE160AHE3/51 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 1.5KE160AHE3/51?
For technical support, including 1.5KE160AHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE160AHE3/51 requirements.
6.How does Aetrix verify that 1.5KE160AHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE160AHE3/51 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 1.5KE160AHE3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE160AHE3/51?
All 1.5KE160AHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE160AHE3/51, 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 1.5KE160AHE3/51 part is unused and in its original packaging.
Return procedure for 1.5KE160AHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE160AHE3/51 Tags
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