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Diodes Incorporated 1.5KE62A-T
- Part No.:
- 1.5KE62A-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE62A-T.pdf
- Description:
- TVS DIODE 53VWM 85VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:8,840
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Product details
Overview
1.5KE62A-T from Diodes Incorporated is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 axial package, with 53.0V reverse standoff voltage, 58.9–65.1V breakdown range at 1mA, and 85.0V max clamping voltage at 17.7A peak pulse current. It protects DC power rails and signal lines in industrial power supplies and automotive ECUs against ESD and lightning-induced surges.
For engineers reviewing the 1.5KE62A-T datasheet, 1.5KE62A-T pinout, 1.5KE62A-T application, or 1.5KE62A-T equivalent, key selection criteria include clamping voltage margin relative to protected IC VMAX, peak pulse current capability under IEC 61000-4-5 waveform, thermal derating above +25°C, and RoHS-compliant lead finish for reflow compatibility.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt protector: it remains high-impedance below 53.0V VRWM, then avalanches sharply at 58.9–65.1V to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable breakdown and low leakage (<5μA @ 53.0V).
Designed for 1.0ms non-repetitive 8/20μs surge events, it delivers 1500W peak pulse power with <1ns response time and 0.104%/°C voltage temperature coefficient-critical for maintaining clamping integrity across -55°C to +175°C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W at 1.0ms pulse - sustains single high-energy transients per IEC 61000-4-5 Level 4 without failure |
| Reverse Standoff Voltage | 53.0V - maximum continuous DC voltage before significant leakage; sets minimum system operating margin |
| Breakdown Voltage Range | 58.9–65.1V @ 1mA - defines guaranteed avalanche onset window for design safety margining |
| Max Clamping Voltage | 85.0V @ 17.7A - limits voltage seen by protected IC during worst-case surge event |
| Peak Pulse Current | 17.7A @ 8/20μs - quantifies surge current-handling capacity under standard test waveform |
| Operating Temperature | -55°C to +175°C - supports under-hood automotive and industrial environments without derating |
| Leakage Current | ≤5.0μA @ 53.0V - ensures minimal standby power loss and no false triggering on nominal rail |
Pinout & Package
Package: DO-201 axial leaded package with transfer-molded epoxy body (UL 94V-0), 1.12g mass, and tin-plated leads solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Surge return path | Connected to ground or low-impedance reference; completes clamping loop during transient |
| Cathode | Protected line connection | Connected to line being protected (e.g., 48V rail); avalanche occurs cathode-to-anode |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Ensures stable breakdown voltage and low leakage over lifetime and temperature cycling |
| 1500W peak pulse rating | Meets IEC 61000-4-5 Level 4 (4kV line-to-line, 2kV line-to-ground) without degradation |
| RoHS-compliant, halogen-free finish | Enables lead-free reflow assembly and satisfies automotive ELV and WEEE compliance requirements |
| Fast response time & tight VBR tolerance | Sub-nanosecond turn-on and ±5% breakdown spread enable predictable, repeatable protection behavior |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: 48V auxiliary power rail in programmable logic controller (PLC) backplane exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between rail and chassis ground to clamp transients before they reach DC-DC converter input. Use Value: 85.0V clamping voltage provides ≥15V margin below typical 100V-rated input capacitors, preventing premature failure during repeated 100V/10ms load dump events. |
Use Scenario: LIN bus line in BCM subjected to ESD (±8kV contact) and battery reversal during jump-start conditions. IC Role / Device Role / Timing Role: Cathode tied to LIN line, anode to ground; clamps fast ESD pulses while blocking reverse battery voltage. Use Value: 53.0V VRWM exceeds LIN's 18V max operating voltage, and 17.7A IPP handles IEC 61000-4-2 ESD current injection without latch-up. |
| Telecom DC Feeder Line Protection | Renewable Energy Inverter DC Link |
Use Scenario: -48V telecom power feed line entering remote radio head enclosure, vulnerable to induced lightning surges. IC Role / Device Role / Timing Role: TVS installed at entry point, cathode to -48V rail, anode to earth ground, providing first-stage surge diversion. Use Value: 1500W rating enables absorption of 10/700μs telecom surge waveforms up to 2kV without degradation, preserving downstream fuse and filter integrity. |
Use Scenario: 600V DC link in solar string inverter exposed to grid-switching transients and partial shading-induced voltage spikes. IC Role / Device Role / Timing Role: Used in parallel array with higher-voltage TVS to manage localized overvoltage on gate driver supply rails. Use Value: -55°C to +175°C rating allows mounting directly on heatsink near power stage, maintaining clamping performance under sustained thermal stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64A | 64V standoff, 1000W rating, SMB surface-mount package | Lacks axial lead mechanical robustness; lower power handling limits use to lower-energy surges | Select when board space is constrained and surge energy ≤1000W; requires reflow-compatible layout |
| 1.5KE62CA | Bidirectional variant; same 53.0V VRWM but symmetrical clamping (±85.0V) | Required for AC-coupled or bidirectional signal lines (e.g., RS-485); not suitable for DC rail protection | Choose only for differential or AC applications where polarity reversal must be suppressed |
Compared with SMBJ64A, 1.5KE62A-T offers 50% higher surge power margin and axial leads for through-hole mechanical stability; versus 1.5KE62CA, it provides superior DC rail protection due to unidirectional blocking of reverse voltage while maintaining identical clamping performance.
Availability
1.5KE62A-T is available at Aetrix Electronics and suitable for industrial power supplies, automotive electronic control units, and telecom infrastructure requiring stable component supply and long-term obsolescence management.
Supply support for 1.5KE62A-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 was engineered specifically for high-reliability transient suppression in harsh-environment applications-including automotive, industrial, and telecom-where robustness, consistent clamping, and extended temperature operation are mandatory.
FAQ
What is the difference between 1.5KE62A-T and 1.5KE62A-B?
The suffix "-T" denotes tape-and-reel packaging (1,000 units per 13-inch reel), optimized for automated SMT placement despite its axial leads; "-B" indicates bulk packaging (1,000 units in tray or bag), intended for manual or semi-automated assembly. Both share identical electrical specifications, DO-201 mechanical form, and RoHS compliance.
Can 1.5KE62A-T be used in place of a Zener diode for voltage regulation?
No. While it shares a PN junction structure, the 1.5KE62A-T is optimized for transient suppression-not steady-state regulation. Its 5.0W steady-state dissipation is insufficient for continuous Zener operation, and its wide VBR tolerance (±10%) and high dynamic impedance make it unsuitable for precision voltage reference applications.
Is 1.5KE62A-T qualified to AEC-Q101 for automotive use?
No. The datasheet explicitly states that AEC-Q101 qualification requires special change control and IATF 16949 manufacturing-this part is not pre-qualified. For automotive-grade designs, engineers must engage Diodes' automotive team to initiate qualification or select the AEC-Q101-certified P6SMBJ64A or SMAJ64A alternatives.
How does temperature affect the clamping voltage of 1.5KE62A-T?
Clamping voltage increases with junction temperature at +0.104%/°C. At +125°C, VC rises ~10.6V above its 25°C value (85.0V), reaching ~95.6V. Designers must verify protected IC's absolute maximum rating accommodates this shift under worst-case thermal conditions.
1.5KE62A-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):
- 53V
- Voltage - Breakdown (Min):
- 58.9V
- Voltage - Clamping (Max) @ Ipp:
- 85V
- Current - Peak Pulse (10/1000µs):
- 17.7A
- 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
1.5KE62A-T FAQ
1.How can I place an order for 1.5KE62A-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE62A-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 1.5KE62A-T reliable?
The price and inventory of 1.5KE62A-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE62A-T is usually 5 days.
3.What payment methods are accepted for 1.5KE62A-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE62A-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE62A-T?
1.5KE62A-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE62A-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 1.5KE62A-T?
For technical support, including 1.5KE62A-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE62A-T requirements.
6.How does Aetrix verify that 1.5KE62A-T is sourced from the original manufacturer or authorized distributors?
All 1.5KE62A-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 1.5KE62A-T meets industry standards.
7.What is the process for return or replacement of 1.5KE62A-T?
All 1.5KE62A-T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE62A-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 1.5KE62A-T part is unused and in its original packaging.
Return procedure for 1.5KE62A-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE62A-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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