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Diodes Incorporated 1.5KE6V8A-B
- Part No.:
- 1.5KE6V8A-B
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE6V8A-B.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:4,792
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Product details
Overview
1.5KE6V8A-B from Diodes Incorporated is a unidirectional 1500W transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 5.80V reverse standoff voltage, 6.45V minimum breakdown voltage at 10mA test current, 10.5V maximum clamping voltage at 143A peak pulse current, and operates across –55°C to +175°C. It is used in automotive body control modules to protect CAN transceiver power inputs from load dump and ISO 7637-2 pulses.
For engineers reviewing the 1.5KE6V8A-B datasheet, 1.5KE6V8A-B pinout, 1.5KE6V8A-B application, or 1.5KE6V8A-B equivalent, key selection criteria include clamping voltage margin relative to protected IC VCC, peak pulse current capability under 1.0ms waveform, temperature coefficient of breakdown voltage, and DO-201 axial package compatibility with manual or wave-soldered 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 conditions. Its 1500W peak pulse power rating is specified at tP = 1.0ms per standard IEC 61000-4-5 waveform.
The device exhibits a low 0.057%/°C voltage temperature coefficient and maintains <1000μA reverse leakage at 5.80V standoff, enabling reliable operation in high-temperature engine bay environments. Its DO-201 package supports axial lead mounting with 9.5mm lead length for 5.0W steady-state dissipation at TL = 75°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W at 1.0ms pulse - sustains single-event surges up to ISO 7637-2 Pulse 5a without failure |
| Reverse Standoff Voltage | 5.80V - maximum continuous DC voltage before significant leakage; sets upper limit for protected rail |
| Breakdown Voltage | 6.45V min @ 10mA - ensures conduction begins just above normal operating voltage |
| Clamping Voltage | 10.5V max @ 143A - limits transient voltage seen by downstream 12V-rated ICs during surge |
| Operating Temperature | –55°C to +175°C - qualified for under-hood automotive placement without derating |
| Leakage Current | 1000μA max @ 5.80V - avoids excessive quiescent power loss in always-on systems |
| Temp Coefficient | 0.057%/°C - enables predictable VBR shift across temperature for robust design margining |
Pinout & Package
Package: DO-201 axial-leaded glass-passivated epoxy package, 1.12g weight, UL 94V-0 rated, with cathode band marking for unidirectional polarity identification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; defines clamping reference point |
| Cathode | High-side surge input terminal | Connected to protected line; conducts surge current to ground when VAK exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Enables stable long-term leakage performance and resistance to humidity-induced degradation |
| 1500W peak pulse rating | Meets ISO 7637-2 Pulse 5a (load dump) requirements for 12V automotive systems |
| RoHS-compliant, halogen-free finish | Satisfies automotive OEM environmental compliance mandates (e.g., GMW3172, Ford WSS-M99P9999-A1) |
| –55°C to +175°C operating range | Supports direct mounting on engine control units without thermal derating |
Applications
| Automotive Body Control Module | Industrial PLC Power Input |
|---|---|
Use Scenario: Protects 12V supply rail feeding microcontroller and CAN transceiver in door module against battery load dump events. IC Role / Device Role: Primary overvoltage clamp placed between fused battery feed and local LDO regulator input. Use Value: Limits transient voltage to ≤10.5V, preventing latch-up or permanent damage to 12V-tolerant ICs during 100V/500ms load dump pulses. |
Use Scenario: Shields 24V DC input stage of programmable logic controller from switching transients induced by contactor coil de-energization. IC Role / Device Role: Front-end surge suppression element upstream of bulk capacitor and DC-DC converter. Use Value: Absorbs 1500W peak energy without degradation, maintaining system uptime during factory floor electromagnetic disturbances. |
| Telecom Remote Radio Unit | Medical Infusion Pump Power Stage |
Use Scenario: Guards PoE-powered remote radio unit's 48V DC input against lightning-induced surges on outdoor cabling. IC Role / Device Role: First-line transient suppressor before DC-DC isolation stage and Ethernet PHY power conditioning. Use Value: Clamps 1kV/0.5μs ring wave transients to <10.5V × (48/12) = 42V, preserving isolation barrier integrity. |
Use Scenario: Secures 24V motor driver supply in battery-operated infusion pump against ESD and cable coupling events. IC Role / Device Role: Surge protection on main power bus feeding H-bridge gate drivers and MCU. Use Value: Withstands >10,000 surges at 143A without parameter shift, ensuring lifetime reliability per IEC 60601-1-2 immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8A | 600W rating, SMC package, 11.2V clamping at 53.5A | Lower power handling; suited for secondary protection or space-constrained boards | Select when board layout requires surface-mount and surge energy is limited to IEC 61000-4-5 Level 3 |
| 1N6267A | Same DO-201 package, 1500W, but 6.5V standoff and 10.8V clamping | Nearly identical electrical behavior; minor VRWM and VC variation | Use as direct functional replacement where 0.3V higher clamping is acceptable in protected circuit margin |
Compared with SMBJ6.8A, 1.5KE6V8A-B delivers 2.5× higher surge energy absorption in the same axial form factor; versus 1N6267A, it offers tighter 5.80V standoff tolerance and lower 0.057%/°C tempco for improved thermal stability in automotive under-hood use.
Availability
1.5KE6V8A-B is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC power inputs, telecom remote radio units, and medical infusion pump power stages requiring stable component supply across extended product lifecycles.
Supply support for 1.5KE6V8A-B 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 devices for automotive, industrial, computing, and consumer markets.
This part belongs to the 1.5KE series of high-power unidirectional TVS diodes, engineered specifically for robust overvoltage protection in harsh-environment automotive and industrial power systems.
FAQ
Is 1.5KE6V8A-B suitable for bidirectional surge protection?
No. The "A" suffix denotes unidirectional configuration with cathode band marking. For bidirectional protection, select the "CA" variant (e.g., 1.5KE6V8CA), which lacks polarity marking and clamps symmetrically for AC or dual-rail applications.
What is the maximum allowable surge repetition rate for 1.5KE6V8A-B?
The datasheet specifies non-repetitive 1.0ms pulses. Continuous operation requires thermal derating: at 25°C ambient, maximum average power is 5.0W; above 25°C, linear derating applies at 40mW/°C up to 175°C junction temperature.
Can 1.5KE6V8A-B be used in place of a Zener diode for voltage regulation?
No. While it shares a PN junction structure, this device is optimized for transient suppression-not regulation. Its VBR tolerance (±5%) and dynamic impedance are not specified for DC regulation; use dedicated Zener regulators like BZX84-C6V8 for stable reference applications.
Does 1.5KE6V8A-B meet AEC-Q101 qualification?
No. Though manufactured in IATF 16949-certified facilities, this specific part is not AEC-Q101 qualified. Diodes Incorporated offers AEC-Q101 versions under the "AQ" prefix (e.g., AQ15KE6V8A); consult factory for PPAP-capable automotive-grade alternatives.
1.5KE6V8A-B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5.8V
- Voltage - Breakdown (Min):
- 6.45V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 143A
- 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
1.5KE6V8A-B FAQ
1.How can I place an order for 1.5KE6V8A-B through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE6V8A-B 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 1.5KE6V8A-B reliable?
The price and inventory of 1.5KE6V8A-B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE6V8A-B is usually 5 days.
3.What payment methods are accepted for 1.5KE6V8A-B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE6V8A-B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE6V8A-B?
1.5KE6V8A-B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE6V8A-B 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 1.5KE6V8A-B?
For technical support, including 1.5KE6V8A-B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE6V8A-B requirements.
6.How does Aetrix verify that 1.5KE6V8A-B is sourced from the original manufacturer or authorized distributors?
All 1.5KE6V8A-B 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 1.5KE6V8A-B meets industry standards.
7.What is the process for return or replacement of 1.5KE6V8A-B?
All 1.5KE6V8A-B units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE6V8A-B, 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 1.5KE6V8A-B part is unused and in its original packaging.
Return procedure for 1.5KE6V8A-B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE6V8A-B Tags
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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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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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