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Diodes Incorporated 1.5KE160A-T
- Part No.:
- 1.5KE160A-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE160A-T.pdf
- Description:
- TVS DIODE 136VWM 219VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:5,129
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Product details
Overview
1.5KE160A-T from Diodes Incorporated is a unidirectional 1500W transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power lines and signal interfaces. It features a 136V reverse standoff voltage, 152–168V breakdown range at 1mA test current, 219V maximum clamping voltage at 6.8A peak pulse current, and operates across –55°C to +175°C. It is used in industrial power supplies to protect rectifier outputs against lightning-induced surges.
For engineers reviewing the 1.5KE160A-T datasheet, 1.5KE160A-T pinout, 1.5KE160A-T application, or 1.5KE160A-T equivalent, key selection criteria include clamping voltage margin relative to protected IC VBR, peak pulse current capability under 1.0ms waveform, temperature coefficient of breakdown voltage (0.108%/°C), and DO-201 axial package compatibility with through-hole PCB layouts.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction to achieve fast response time (<1ps) and stable clamping performance under repetitive surge stress. Its 1500W peak pulse power rating is specified at tP = 1.0ms per standard IEC 61000-4-5 waveform.
The device exhibits a low 0.108%/°C voltage temperature coefficient and maintains <5μA reverse leakage at 136V standoff, enabling reliable operation in high-temperature industrial environments without thermal runaway risk.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W at 1.0ms pulse - sustains single lightning surge events per IEC 61000-4-5 Level 4 without failure |
| Reverse Standoff Voltage | 136V - maximum continuous DC voltage before significant leakage; sets upper limit for protected circuit operating voltage |
| Breakdown Voltage Range | 152–168V @ 1mA - defines guaranteed conduction onset; ensures robust margin above 136V system rail |
| Max Clamping Voltage | 219V @ 6.8A - limits transient voltage seen by downstream components during surge event |
| Operating Temperature | –55°C to +175°C - supports deployment in under-hood automotive or industrial motor drive enclosures |
| Leakage Current | <5μA @ 136V - minimizes standby power loss and avoids false triggering in high-impedance sensing nodes |
| Temp Coefficient | 0.108%/°C - enables predictable voltage shift across temperature; critical for precision clamp design |
Pinout & Package
Package: DO-201 axial-leaded, transfer-molded epoxy housing (UL 94V-0 rated), 1.12g mass, tin-plated leads solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink during forward conduction | Connected to ground or low-impedance return path; forms cathode-to-rail clamping configuration |
| Cathode | Protected line connection point | Connected to DC input rail; conducts surge current to ground when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Enables stable leakage and breakdown characteristics over lifetime; resists humidity-induced parameter drift |
| 1500W peak pulse rating | Provides margin for 4kV/2Ω IEC 61000-4-5 surge testing without derating or parallel devices |
| 0.108%/°C VBR tempco | Ensures ≤±3.5% VBR shift over full –55°C to +175°C range; simplifies thermal design margining |
| RoHS-compliant, halogen-free | Meets IPC-1752A material declaration requirements for automotive and industrial OEMs |
| DO-201 mechanical robustness | Withstands >5kgf axial pull force; suitable for vibration-prone power supply assemblies |
Applications
| Industrial Power Supply Input Protection | Automotive Body Control Module (BCM) Power Rail |
|---|---|
Use Scenario: Protects AC/DC converter DC bus against induced surges from relay switching or nearby lightning strikes. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed between +VIN and chassis ground. Use Value: Limits transient voltage to ≤219V, preventing damage to downstream 200V-rated electrolytic capacitors and MOSFET gate drivers. |
Use Scenario: Safeguards 12V battery-fed microcontroller power rails in door modules exposed to load dump transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on VBAT input prior to LDO regulator. Use Value: Withstands 120V/40ms load dump per ISO 7637-2 Pulse 5a while maintaining <5μA leakage at nominal 13.5V. |
| Telecom Line Interface Surge Protection | Renewable Energy Inverter DC Link |
Use Scenario: Shields RS-485 transceiver power pins from ESD and induced surges on long outdoor cable runs. IC Role / Device Role / Timing Role: Secondary protection stage after gas discharge tube (GDT), placed directly at IC VCC pin. Use Value: Fast <1ps response captures residual energy missed by GDT; clamps to 219V before transceiver absolute max rating (25V) is exceeded. |
Use Scenario: Protects IGBT gate driver supply rails in solar string inverters subjected to grid-switching transients. IC Role / Device Role / Timing Role: Clamp on isolated 15V auxiliary supply feeding gate drivers. Use Value: 1500W rating handles repetitive 10/1000μs surges from transformer magnetizing current interruption without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ160A | Same 160V standoff, but 600W peak power (SMB package); lower clamping voltage (224V) | Surface-mount only; unsuitable for high-energy 1.0ms surges requiring 1500W | Select only if board space constraints prohibit axial DO-201 and surge energy is limited to ≤600W |
| 1.5SMC160A | Same 1500W rating and DO-214AB package; slightly higher clamping (225V) and wider VBR tolerance (152–176V) | SMD footprint replaces through-hole; requires reflow-compatible layout and thermal relief pads | Choose when automated assembly mandates SMD and PCB real estate allows DO-214AB mounting |
Compared with 1.5KE160A-T, SMBJ160A offers smaller size but insufficient energy handling for IEC 61000-4-5 compliance, while 1.5SMC160A matches power rating but demands SMT process adaptation and has looser breakdown control.
Availability
1.5KE160A-T is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, telecom interface protection, and renewable energy inverters requiring stable component supply across extended product lifecycles.
Supply support for 1.5KE160A-T 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
Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal solutions for industrial, computing, consumer, and automotive markets.
The 1.5KE series targets high-energy transient suppression in legacy and cost-sensitive designs where axial-leaded reliability and proven field performance are prioritized over SMT miniaturization.
FAQ
What is the difference between 1.5KE160A-T and 1.5KE160CA-T?
The "A" suffix denotes unidirectional operation (anode-cathode polarity), while "CA" indicates bidirectional symmetry (no polarity marking). 1.5KE160A-T clamps only positive transients relative to ground; 1.5KE160CA-T protects both polarities, making it suitable for AC lines or differential data buses where voltage reversals occur.
Can 1.5KE160A-T be used in place of a 150V Zener diode for voltage regulation?
No. This device is optimized for transient suppression, not steady-state regulation. Its 5μA leakage at 136V and wide 152–168V breakdown spread make it unsuitable for precision voltage reference or biasing. Zener diodes offer tighter tolerance, lower dynamic impedance, and guaranteed regulation current range.
What is the significance of the "-T" suffix in 1.5KE160A-T?
The "-T" suffix specifies tape-and-reel packaging: 1,000 units per 13-inch reel. This format enables automated pick-and-place assembly. The "-B" variant denotes bulk packaging for manual or semi-automated insertion. Both share identical electrical and thermal specifications.
How does the 0.108%/°C temperature coefficient affect circuit protection margin?
Over the full –55°C to +175°C range, VBR shifts by approximately ±3.5%, meaning breakdown may occur as low as 147V at –55°C or as high as 174V at +175°C. Designers must ensure protected circuit's absolute maximum voltage rating exceeds the worst-case VBR plus clamping margin at operating temperature.
1.5KE160A-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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:
- DO-201
1.5KE160A-T FAQ
1.How can I place an order for 1.5KE160A-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE160A-T 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-T reliable?
The price and inventory of 1.5KE160A-T 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-T is usually 5 days.
3.What payment methods are accepted for 1.5KE160A-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE160A-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE160A-T?
1.5KE160A-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE160A-T 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-T?
For technical support, including 1.5KE160A-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE160A-T requirements.
6.How does Aetrix verify that 1.5KE160A-T is sourced from the original manufacturer or authorized distributors?
All 1.5KE160A-T 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-T meets industry standards.
7.What is the process for return or replacement of 1.5KE160A-T?
All 1.5KE160A-T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE160A-T, 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-T part is unused and in its original packaging.
Return procedure for 1.5KE160A-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE160A-T Tags
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ESD9B5.0ST5G
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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