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Diodes Incorporated 1.5KE82CA-T
- Part No.:
- 1.5KE82CA-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE82CA-T.pdf
- Description:
- TVS DIODE 70.1VWM 113VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:4,426
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Product details
Overview
1.5KE82CA-T from Diodes Incorporated is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, designed for high-energy surge protection in DC power lines and signal interfaces. It features a reverse standoff voltage of 70.1 V, breakdown voltage range 77.9–86.1 V at 1 mA, clamping voltage of 113 V at 13.3 A peak pulse current, and operates from –55 °C to +175 °C.
For engineers reviewing the 1.5KE82CA-T datasheet, 1.5KE82CA-T pinout, 1.5KE82CA-T application, or 1.5KE82CA-T equivalent, key selection criteria include clamping ratio (VC/VBR ≈ 1.45), unidirectional vs. bidirectional polarity, DO-201 axial lead mechanical compatibility, RoHS/Green compliance, and IATF 16949 manufacturing traceability for automotive-grade designs.
Technical Context
This bidirectional TVS diode uses glass-passivated silicon junctions to achieve fast response time (<1 ns) and stable clamping under 8/20 µs surge waveforms. Its symmetrical avalanche structure enables equal clamping in both polarities, making it suitable for AC-coupled or floating signal lines where polarity reversal is possible.
The device is rated for 1500 W peak pulse power (1 ms, non-repetitive), with steady-state power dissipation of 5.0 W at 75 °C lead temperature. Temperature coefficient of breakdown voltage is +0.105 %/°C, supporting predictable voltage drift across industrial operating ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500 W (1 ms, 10/1000 µs waveform): defines maximum single-event surge energy absorption capability |
| Reverse Standoff Voltage | 70.1 V: maximum continuous DC or RMS voltage before significant leakage begins |
| Breakdown Voltage | 77.9–86.1 V @ 1 mA: guaranteed avalanche initiation range under standardized test current |
| Clamping Voltage | 113 V @ 13.3 A: maximum voltage seen by protected circuit during specified 8/20 µs surge |
| Peak Pulse Current | 13.3 A: maximum surge current supported while maintaining clamping voltage ≤113 V |
| Operating Temperature | –55 °C to +175 °C: full-rated junction temperature range for under-hood or high-ambient industrial use |
| Leakage Current | ≤5.0 µA @ 70.1 V: ensures minimal standby power loss and signal integrity in high-impedance circuits |
Pinout & Package
Package: DO-201 axial-leaded through-hole package with transfer-molded epoxy body (UL 94V-0), 1.12 g weight, and tin-plated leads solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (Bidirectional) | Reversible avalanche terminals | No polarity marking required; symmetric conduction allows installation without orientation check |
| Lead 1 / Lead 2 | Through-hole mechanical interface | Axial leads spaced per DO-201 outline (A = 25.4 mm, B = 8.5–9.53 mm); supports manual or wave soldering |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Enables stable, low-leakage avalanche behavior and long-term reliability under thermal cycling |
| Bidirectional configuration | Eliminates need for polarity-aware layout; protects AC signals, differential buses, or floating nodes |
| 1500 W peak pulse rating | Meets IEC 61000-4-5 Level 4 (4 kV line-to-line, 2 kV line-to-earth) surge immunity requirements |
| RoHS 3 & Halogen-free | Complies with EU Directive 2015/863/EU and Diodes' "Green" definition (<900 ppm Br/Cl, <1000 ppm Sb) |
| –55 °C to +175 °C operation | Validated for under-hood automotive, industrial motor drives, and outdoor power supply applications |
Applications
| Automotive Power Line Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: 12 V battery feed line in engine control unit exposed to load dump transients up to 120 V. IC Role / Device Role / Timing Role: Primary clamping element placed upstream of DC-DC converter input stage. Use Value: Limits transient voltage to ≤113 V, preventing damage to downstream 100 V-rated MOSFETs and regulators. |
Use Scenario: 24 V digital input module in programmable logic controller subject to field-wiring induced surges. IC Role / Device Role / Timing Role: Front-end overvoltage clamp on isolated optocoupler input path. Use Value: Absorbs 13.3 A surges without degradation, preserving signal integrity and enabling >100,000 surge cycles. |
| AC-DC Adapter Surge Suppression | Telecom Line Interface Protection |
|
Use Scenario: Secondary-side output of offline flyback adapter powering sensitive IoT gateway electronics. IC Role / Device Role / Timing Role: Bidirectional clamp across 5 V/12 V output rails to suppress cross-talk and ESD coupling. Use Value: Symmetric clamping prevents reverse-bias overstress on USB or Ethernet PHY ICs during hot-plug events. |
Use Scenario: TIP/RING line interface in VoIP terminal exposed to lightning-induced longitudinal surges. IC Role / Device Role / Timing Role: First-stage protector before hybrid transformer and line driver IC. Use Value: Fast <1 ns response captures surge edge before secondary protection triggers, reducing total let-through energy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ85CA | Lower peak power (600 W), smaller SMB package, lower clamping voltage (125 V @ 4.8 A) | Preferred for space-constrained PCBs; insufficient for 1500 W IEC 61000-4-5 Level 4 testing | Select when board area is critical and surge threat level is ≤Level 3 (2 kV line-earth) |
| 1.5SMC82CA | Same electrical specs, SMC (DO-214AB) surface-mount package, higher thermal resistance | Requires rework for through-hole legacy designs; better suited for automated SMT assembly | Choose for new SMT-based industrial power supplies where DO-201 footprint is not required |
Compared with SMBJ85CA and 1.5SMC82CA, the 1.5KE82CA-T delivers higher surge robustness in axial-leaded form factor, maintains legacy through-hole compatibility, and supports full automotive-grade thermal and reliability validation - making it optimal for retrofit, high-energy, or mechanically constrained designs.
Availability
1.5KE82CA-T is available at Aetrix Electronics and suitable for automotive power line protection, industrial PLC I/O protection, AC-DC adapter surge suppression, and telecom line interface protection requiring stable component supply and long-lifecycle support.
Supply support for 1.5KE82CA-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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.
The 1.5KE series was developed specifically for high-reliability transient suppression in automotive, industrial, and telecom infrastructure, emphasizing robust glass-passivated construction, wide temperature operation, and AEC-Q200-aligned process controls.
FAQ
What does the "CA" suffix indicate in 1.5KE82CA-T?
The "CA" suffix denotes a bidirectional TVS diode configuration, meaning it provides symmetrical clamping for both positive and negative voltage transients. Unlike unidirectional "A" variants, it has no cathode band marking and functions identically regardless of polarity - essential for protecting AC signals, differential pairs, or floating nodes where voltage reversal occurs.
Is 1.5KE82CA-T suitable for automotive applications?
Yes - while not pre-qualified to AEC-Q101, this part is manufactured in IATF 16949-certified facilities and supports PPAP documentation. Its –55 °C to +175 °C operating range, glass-passivated die, and 1500 W surge rating align with under-hood and powertrain subsystem requirements. Customers requiring formal AEC-Q101 certification should contact Diodes directly for qualified alternatives.
How does clamping voltage relate to system-level surge protection?
Clamping voltage (113 V at 13.3 A) is the maximum voltage imposed on the protected circuit during a defined surge event. To ensure downstream component survival, this value must remain below the absolute maximum ratings of all devices downstream - e.g., a 100 V-rated MOSFET requires additional staging or a lower-VC TVS. The 1.5KE82CA-T's 113 V clamping is validated per IEC 61000-4-5 test conditions.
Can 1.5KE82CA-T replace 1.5KE82A-T in an existing design?
No - the "A" suffix indicates unidirectional operation with a cathode band, while "CA" is bidirectional with no polarity marking. Substituting without verifying circuit topology may cause improper clamping or failure to suppress negative transients. Layout review and functional validation are mandatory before replacement, especially in DC-biased or single-polarity systems.
1.5KE82CA-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:
- -
- Bidirectional Channels:
- 1
- 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
1.5KE82CA-T FAQ
1.How can I place an order for 1.5KE82CA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE82CA-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 1.5KE82CA-T reliable?
The price and inventory of 1.5KE82CA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE82CA-T is usually 5 days.
3.What payment methods are accepted for 1.5KE82CA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE82CA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE82CA-T?
1.5KE82CA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE82CA-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 1.5KE82CA-T?
For technical support, including 1.5KE82CA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE82CA-T requirements.
6.How does Aetrix verify that 1.5KE82CA-T is sourced from the original manufacturer or authorized distributors?
All 1.5KE82CA-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 1.5KE82CA-T meets industry standards.
7.What is the process for return or replacement of 1.5KE82CA-T?
All 1.5KE82CA-T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE82CA-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 1.5KE82CA-T part is unused and in its original packaging.
Return procedure for 1.5KE82CA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE82CA-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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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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