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Diodes Incorporated 1.5KE82A-T
- Part No.:
- 1.5KE82A-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE82A-T.pdf
- Description:
- TVS DIODE 70.1VWM 113VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:4,270
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Product details
Overview
1.5KE82A-T from Diodes Incorporated is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, designed for primary overvoltage protection of DC power rails and signal lines. It features a 70.1V reverse standoff voltage, 77.9V minimum breakdown voltage at 1mA test current, 113V maximum clamping voltage at 13.3A peak pulse current, and operates across –55°C to +175°C.
For engineers reviewing the 1.5KE82A-T datasheet, 1.5KE82A-T pinout, 1.5KE82A-T application, or 1.5KE82A-T equivalent, this device serves as a robust, RoHS-compliant, lead-free surge protector for automotive power supplies, industrial control I/O, telecom line cards, and AC/DC adapter input stages where fast response (<1 ns), low leakage (<5 µA @ 70.1V), and stable temperature coefficient (0.105%/°C) are critical.
Technical Context
This unidirectional TVS diode uses glass-passivated silicon junction technology to achieve precise breakdown characteristics and excellent clamping performance under 8/20 µs surge waveforms. Its DO-201 axial-leaded package supports high thermal dissipation during transient events, with 5.0W steady-state power rating at 75°C lead temperature.
The device exhibits a tightly controlled voltage tolerance (±5% on VRWM), fast response time (<1.0 ns), and low dynamic impedance-enabling effective suppression of ESD (IEC 61000-4-2), EFT (IEC 61000-4-4), and lightning-induced surges (IEC 61000-4-5). Its 0.105%/°C VBR temperature coefficient ensures predictable clamping behavior across wide ambient ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500 W - Sustains single 1.0 ms non-repetitive transients without failure |
| Reverse Standoff Voltage (VRWM) | 70.1 V - Maximum continuous DC or RMS voltage before significant leakage |
| Breakdown Voltage (VBR) | 77.9 V min @ 1 mA - Confirmed avalanche initiation threshold for reliable triggering |
| Clamping Voltage (VC) | 113 V max @ 13.3 A - Limits downstream circuit voltage during worst-case surge |
| Peak Pulse Current (IPP) | 13.3 A @ 10/1000 µs waveform - Quantifies surge-handling capacity per standard test profile |
| Operating Temperature | –55°C to +175°C - Enables use in under-hood automotive, industrial motor drives, and outdoor power systems |
| Leakage Current (IR) | 5.0 µA max @ 70.1 V - Ensures minimal standby power loss and signal integrity in high-impedance circuits |
Pinout & Package
Package: DO-201 axial-leaded, transfer-molded epoxy (UL 94V-0), 1.12 g typical weight. Cathode identified by band marking on unidirectional version.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Surge return path | Connected to ground or low-impedance reference; completes clamping loop during overvoltage event |
| Cathode | Protected line connection | Connected to line being protected (e.g., +12V rail); conducts when voltage exceeds VRWM |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Ensures stable breakdown voltage and long-term reliability under thermal cycling and humidity stress |
| 1500W peak pulse power rating | Supports IEC 61000-4-5 Level 4 (4 kV line-to-line, 2 kV line-to-ground) surge immunity compliance |
| RoHS-compliant, halogen- and antimony-free | Meets EU Directive 2015/863/EU with Br+Cl <1500 ppm and Sb <1000 ppm - suitable for green manufacturing |
| Fast response time (<1 ns) | Clamps transients before sensitive downstream ICs experience damaging overvoltage |
Applications
| Automotive Power Supply Protection | Industrial PLC Digital I/O Protection |
|---|---|
Use Scenario: 12V battery rail in engine control units exposed to load dump (ISO 16750-2) and jump-start transients. IC Role / Device Role / Timing Role: Primary clamping device placed directly at connector entry point to shunt surge energy to chassis ground. Use Value: Clamps 113 V at 13.3 A, limiting rail excursion below 120 V and protecting 100 V-rated DC-DC converters and microcontrollers. |
Use Scenario: 24V digital input module in factory automation system subject to inductive switching noise and field wiring surges. IC Role / Device Role / Timing Role: Front-end transient suppressor on each isolated input channel before optocoupler or Schmitt trigger. Use Value: Sub-1 ns response prevents false triggering; 5 µA leakage avoids loading high-impedance sensor inputs. |
| Telecom Line Card Surge Suppression | AC/DC Adapter Input Stage |
Use Scenario: T1/E1 interface board receiving signals over long copper runs vulnerable to lightning-induced surges. IC Role / Device Role / Timing Role: Secondary protection stage after gas discharge tube (GDT), providing low-clamp refinement. Use Value: 113 V clamping complements GDT's ~300 V strike voltage, achieving coordinated two-stage protection meeting GR-1089-CORE requirements. |
Use Scenario: Input rectifier stage of offline SMPS where MOVs degrade over time and require semiconductor backup. IC Role / Device Role / Timing Role: Fast-acting parallel clamp across bulk capacitor to absorb residual surges escaping upstream MOV. Use Value: Stable 0.105%/°C VBR ensures consistent clamping across operating temperature range, unlike thermally drifting MOVs. |
Availability
1.5KE82A-T is available at Aetrix Electronics and suitable for automotive power supply protection, industrial PLC digital I/O protection, telecom line card surge suppression, and AC/DC adapter input stage applications requiring stable component supply and traceable sourcing.
Supply support for 1.5KE82A-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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability protection, power management, and signal integrity solutions for automotive, industrial, and consumer markets.
The 1.5KE series is part of Diodes' transient voltage suppressor portfolio, engineered specifically for high-energy surge protection in harsh environments where long-term stability, tight voltage tolerances, and AEC-Q200-aligned robustness are required.
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ80A (Bourns) | 600W rating, SMB package, 80V standoff, 129V clamping @ 9.3A | Lower power handling; surface-mount only; less suitable for high-current load dump | Select when board space is constrained and surge levels are ≤ Level 3 IEC 61000-4-5 |
| P6KE82A (ON Semiconductor) | 600W rating, DO-15 package, identical 70.1V VRWM and 113V VC, but 5.0W Pd vs. 5.0W | Same axial form factor but lower peak power; limited to lower-energy transients | Select only if legacy design compatibility with P6KE footprint is mandatory and 1500W headroom is not required |
Compared with SMBJ80A and P6KE82A, the 1.5KE82A-T delivers 2.5× higher peak pulse power in the same axial DO-201 package, enabling robust protection against automotive load dump and industrial lightning surges where lower-power alternatives would fail catastrophically.
FAQ
Is 1.5KE82A-T suitable for automotive applications?
Yes - it meets AEC-Q200 stress test requirements when manufactured in IATF 16949-certified facilities. Its –55°C to +175°C operating range, stable 0.105%/°C VBR, and 1500W surge capability make it appropriate for under-hood power rail protection, though formal PPAP documentation must be obtained directly from Diodes Incorporated for qualified automotive programs.
What is the difference between 1.5KE82A-T and 1.5KE82CA-T?
The "A" suffix denotes unidirectional operation (cathode-anode polarity), while "CA" indicates bidirectional symmetry (no polarity marking). The 1.5KE82A-T clamps only above VRWM in the reverse direction and conducts forward like a standard diode; the CA version clamps symmetrically in both directions, making it suitable for AC line or differential signal protection.
Can 1.5KE82A-T replace a metal-oxide varistor (MOV)?
It can serve as a fast-response complement to an MOV in hybrid protection schemes but not as a direct replacement for high-energy AC line surges. MOVs handle higher total joules but respond slower (>25 ns) and degrade with repeated events; the 1.5KE82A-T provides precise, non-degrading clamping for fast transients but has lower total energy absorption capacity.
What is the meaning of the "-T" suffix in 1.5KE82A-T?
The "-T" suffix indicates tape-and-reel packaging: 1,000 pieces per 13-inch reel. This format supports automated SMT placement when used with axial-to-SMT adapters or manual/semi-automated through-hole assembly lines equipped with reel-fed feeders.
1.5KE82A-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):
- 70.1V
- Voltage - Breakdown (Min):
- 77.9V
- Voltage - Clamping (Max) @ Ipp:
- 113V
- Current - Peak Pulse (10/1000µs):
- 13.3A
- 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
1.5KE82A-T FAQ
1.How can I place an order for 1.5KE82A-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE82A-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 1.5KE82A-T reliable?
The price and inventory of 1.5KE82A-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE82A-T is usually 5 days.
3.What payment methods are accepted for 1.5KE82A-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE82A-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE82A-T?
1.5KE82A-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE82A-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 1.5KE82A-T?
For technical support, including 1.5KE82A-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE82A-T requirements.
6.How does Aetrix verify that 1.5KE82A-T is sourced from the original manufacturer or authorized distributors?
All 1.5KE82A-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 1.5KE82A-T meets industry standards.
7.What is the process for return or replacement of 1.5KE82A-T?
All 1.5KE82A-T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE82A-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 1.5KE82A-T part is unused and in its original packaging.
Return procedure for 1.5KE82A-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE82A-T Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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