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Diodes Incorporated 1.5KE6V8A-T
- Part No.:
- 1.5KE6V8A-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE6V8A-T.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:6,319
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Product details
Overview
1.5KE6V8A-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 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 from –55°C to +175°C - used in automotive body control modules to protect LIN bus transceivers against load dump and ISO 7637-2 pulses.
For engineers reviewing the 1.5KE6V8A-T datasheet, 1.5KE6V8A-T pinout, 1.5KE6V8A-T application, or 1.5KE6V8A-T equivalent, key selection criteria include clamping voltage margin relative to protected IC VCC, peak pulse current handling under IEC 61000-4-5 surge, thermal derating at elevated ambient, and DO-201 axial lead compatibility with legacy PCB layouts.
Technical Context
This unidirectional TVS diode operates by avalanche breakdown when reverse voltage exceeds its standoff threshold, diverting surge energy to ground while limiting voltage across protected circuitry. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1000µA at 5.80V).
The device delivers 1500W peak pulse power (1.0ms, 10/1000µs waveform), with fast response time (<1.0ps) and temperature coefficient of 0.057%/°C for VBR, enabling predictable clamping performance across automotive temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W - sustains single 1.0ms transient surges per IEC 61000-4-5 without failure |
| Reverse Standoff Voltage | 5.80V - maximum continuous DC voltage before significant leakage begins |
| Breakdown Voltage | 6.45V min @ 10mA - guaranteed avalanche initiation point for reliable clamping onset |
| Clamping Voltage | 10.5V max @ 143A - limits voltage seen by downstream ICs during worst-case surge |
| Peak Pulse Current | 143A - maximum surge current the device can safely shunt at rated clamping voltage |
| Operating Temperature | –55°C to +175°C - supports under-hood automotive placement without derating |
| Leakage Current | ≤1000µA @ 5.80V - ensures minimal standby power loss in always-on systems |
Pinout & Package
Package: DO-201 axial-leaded through-hole package with tin-finished leads, transfer-molded epoxy body (UL 94V-0), 1.12g weight, and moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Surge return path | Connected to ground or low-impedance reference; completes clamping loop during overvoltage events |
| Cathode | Protected line connection | Connected to line being protected (e.g., LIN bus); cathode band marking identifies polarity |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die | Ensures stable breakdown voltage and low parameter drift over temperature and lifetime |
| 1500W peak pulse rating | Meets ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 Level 4 surge immunity requirements |
| Fast response time | Sub-nanosecond turn-on enables protection of high-speed interfaces before damage occurs |
| RoHS-compliant & halogen-free | Complies with EU Directive 2015/863/EU and automotive "Green" material standards |
| DO-201 mechanical robustness | Withstands 200A non-repetitive forward surge (8.3ms half-sine), supporting high-energy fault conditions |
Applications
| Automotive LIN Bus Protection | Industrial 24V DC Power Input |
|---|---|
Use Scenario: Protects LIN transceivers in door modules from battery transients and ESD events during vehicle assembly and service. IC Role / Device Role: Unidirectional TVS placed between LIN line and chassis ground to clamp positive-going surges only. Use Value: Clamps to ≤10.5V at 143A, keeping transceiver input within absolute maximum rating (typically 18V) during ISO 7637-2 Pulse 5a. |
Use Scenario: Safeguards PLC I/O power supply inputs against field-wiring faults and lightning-induced surges on factory floor wiring. IC Role / Device Role: Primary overvoltage clamp on 24V rail upstream of DC-DC converter and LDO regulators. Use Value: Absorbs 1500W surge energy without degradation, preventing regulator latch-up or MOSFET gate oxide rupture. |
| Consumer Appliance Motor Drive | Telecom Power Interface |
Use Scenario: Shields microcontroller GPIOs and H-bridge gate drivers in smart washing machine control boards from motor back-EMF spikes. IC Role / Device Role: Localized TVS on motor driver enable lines and feedback paths. Use Value: 0.057%/°C VBR tempco ensures consistent clamping across –40°C to +85°C cabinet operation. |
Use Scenario: Guards PoE-powered Ethernet switch ports against induced surges on 48V DC input from outdoor cabling runs. IC Role / Device Role: First-stage surge suppression before DC-DC conversion and hot-swap controller. Use Value: 175°C max junction temperature allows placement near heat-generating magnetics without thermal derating. |
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 | Lower peak power (600W), SMC package (surface-mount), 10.5V clamping at 58.3A | Not suitable for ISO 7637-2 Pulse 5a; limited to IEC 61000-4-5 Level 2 | Select when board space is constrained and surge energy is ≤600W; requires requalification for automotive load dump |
| 1N6267A | Same DO-201 package, 1500W rating, but higher clamping (11.2V @ 134A) and wider VRWM tolerance (5.5–6.1V) | Marginally tighter system-level voltage headroom due to higher VC | Acceptable where 0.7V higher clamping is tolerable; verify against protected IC's absolute max rating |
Compared with SMBJ6.8A and 1N6267A, the 1.5KE6V8A-T provides optimal balance of high-energy surge handling, tight clamping voltage, and through-hole manufacturability - making it preferred for legacy automotive and industrial designs requiring proven DO-201 reliability.
Availability
1.5KE6V8A-T is available at Aetrix Electronics and suitable for automotive body electronics, industrial 24V power supplies, appliance motor controls, and telecom DC interface protection requiring stable component supply and long-lifecycle support.
Supply support for 1.5KE6V8A-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 North America.
The 1.5KE series belongs to Diodes' transient voltage suppressor portfolio, engineered specifically for high-energy surge protection in automotive, industrial, and consumer applications where reliability under extreme electrical stress is critical.
FAQ
Is 1.5KE6V8A-T RoHS and REACH compliant?
Yes, 1.5KE6V8A-T meets EU Directive 2015/863/EU (RoHS 3) with all applicable exemptions applied, including high-temperature solder and glass exemptions. It is also halogen- and antimony-free, defined as <900ppm bromine, <900ppm chlorine, and <1000ppm antimony compounds - certified per Diodes' Green product standard.
What is the difference between 1.5KE6V8A-T and 1.5KE6V8CA-T?
The "A" suffix denotes unidirectional operation (cathode-anode conduction only), while "CA" indicates bidirectional (symmetrical clamping for AC or dual-polarity signals). The 1.5KE6V8A-T has a cathode band marking and clamps only positive transients to ground; the CA version lacks the band and clamps both polarities equally.
Can 1.5KE6V8A-T be used in place of SMAJ6.8A?
No - SMAJ6.8A is a surface-mount device in DO-214AC (SMA) package with 400W peak power and different thermal and mechanical characteristics. Substitution would require PCB redesign, derating analysis, and revalidation of surge immunity, as 1.5KE6V8A-T's DO-201 package offers higher surge capacity but occupies more board area.
Does this part meet AEC-Q101 qualification?
No - the 1.5KE6V8A-T is not AEC-Q101 qualified. Diodes states that automotive-grade versions meeting AEC-Q101 require specific change control, PPAP capability, and IATF 16949 manufacturing - these are offered under separate part numbers (e.g., "AEC-Q101" suffix variants), not the standard 1.5KE6V8A-T.
1.5KE6V8A-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):
- 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-T FAQ
1.How can I place an order for 1.5KE6V8A-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE6V8A-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 1.5KE6V8A-T reliable?
The price and inventory of 1.5KE6V8A-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE6V8A-T is usually 5 days.
3.What payment methods are accepted for 1.5KE6V8A-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE6V8A-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE6V8A-T?
1.5KE6V8A-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE6V8A-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 1.5KE6V8A-T?
For technical support, including 1.5KE6V8A-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE6V8A-T requirements.
6.How does Aetrix verify that 1.5KE6V8A-T is sourced from the original manufacturer or authorized distributors?
All 1.5KE6V8A-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 1.5KE6V8A-T meets industry standards.
7.What is the process for return or replacement of 1.5KE6V8A-T?
All 1.5KE6V8A-T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE6V8A-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 1.5KE6V8A-T part is unused and in its original packaging.
Return procedure for 1.5KE6V8A-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE6V8A-T Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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D5V0H1B2LP-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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