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Vishay General Semiconductor - Diodes Division 1.5KE62AHE3/51
- Part No.:
- 1.5KE62AHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE62AHE3/51.pdf
- Description:
- TVS DIODE 53VWM 85VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:4,759
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Product details
Overview
1.5KE62AHE3/51 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 58.9 V minimum breakdown voltage (VBR), 53.0 V maximum standoff voltage (VWM), 85.0 V clamping voltage (VC) at 17.6 A peak pulse current, 1500 W peak pulse power rating (10/1000 µs), and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the 1.5KE62AHE3/51 datasheet, 1.5KE62AHE3/51 pinout, 1.5KE62AHE3/51 application, or 1.5KE62AHE3/51 equivalent, this part serves as a robust, glass-passivated, leaded TVS solution for protecting MOSFETs, microcontrollers, and sensor interfaces against lightning-induced surges, inductive switching transients, and ESD events in industrial and automotive environments.
Technical Context
This unidirectional TVS diode operates with a fast sub-nanosecond response time and low incremental surge resistance to clamp transient voltages before sensitive downstream components are damaged. Its 1.5KE package supports high thermal dissipation with RθJA = 75 °C/W and RθJL = 15.4 °C/W, enabling reliable operation up to 175 °C junction temperature.
The device complies with JEDEC standards for surge testing (8.3 ms half-sine, 10/1000 µs waveform), exhibits 1.0 µA max reverse leakage at VWM, and maintains stable clamping performance across temperature due to its +0.104 %/°C VBR temperature coefficient - critical for consistent protection in varying ambient conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min) | 58.9 V - Ensures reliable triggering above normal operating voltage of 53.0 V DC rails |
| VWM | 53.0 V - Maximum continuous working voltage without leakage exceeding 1.0 µA |
| VC @ IPPM | 85.0 V - Clamped voltage seen by protected circuit during 17.6 A transient event |
| PPPM | 1500 W - Peak surge energy absorption capability under standardized 10/1000 µs waveform |
| IPPM | 17.6 A - Maximum non-repetitive surge current the device safely clamps without failure |
| TJ max | 175 °C - Enables use in under-hood automotive and high-temperature industrial enclosures |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress test requirements (HTOL, TCT, etc.) |
Pinout & Package
Package: DO-201AD (Case Style 1.5KE), axial-leaded, molded epoxy body with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102 solderability standards. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to ground or lower-potential node in unidirectional TVS configuration |
| Cathode | Current exit point during forward conduction; clamping terminal in reverse bias | Connected to protected line (e.g., 53 V rail); absorbs surge energy when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity |
| 1500 W peak pulse power (10/1000 µs) | Provides robust protection against high-energy transients such as ISO 7637-2 Pulse 5a/b |
| Sub-nanosecond response time | Clamps within ~1 ns - faster than MOVs or polymer-based protectors, preserving signal integrity |
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker resistance and UL 94 V-0 flammability for safety-critical designs |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 48 V battery management system (BMS) input rails from load dump transients per ISO 16750-2. IC Role / Device Role / Timing Role: Primary clamping device placed directly at connector entry point to shunt surge energy to chassis ground. Use Value: Limits voltage to ≤85.0 V during 17.6 A transients, preventing damage to downstream DC-DC converters and monitoring ICs. |
Use Scenario: Safeguarding analog outputs of pressure sensors in factory automation PLC modules exposed to relay coil switching noise. IC Role / Device Role / Timing Role: Unidirectional TVS on 24 V supply line to sensor interface, absorbing repetitive inductive spikes. Use Value: Maintains <1.0 µA leakage at 24 V nominal, ensuring minimal impact on sensor accuracy while clamping >53 V transients. |
| Telecom Line Card Surge Protection | Consumer Power Adapter Input Protection |
Use Scenario: Secondary protection on -48 V telecom power feed lines subject to lightning-induced surges per ITU-T K.20. IC Role / Device Role / Timing Role: Standoff-rated TVS in series with upstream GDT or MOV to refine clamping level and reduce let-through energy. Use Value: Provides precise 53.0 V VWM hold-off and 85.0 V VC, enabling coordination with higher-energy primary protectors. |
Use Scenario: Input-stage overvoltage suppression in USB-C PD adapters handling variable 5–20 V inputs. IC Role / Device Role / Timing Role: Unidirectional TVS on primary-side DC bus to prevent latch-up or gate oxide rupture in GaN FETs. Use Value: Withstands 200 A IFSM surge and operates up to 175 °C, supporting compact, thermally constrained adapter designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64A | DO-214AA package; lower PPPM (600 W); VC = 103 V @ 5.8 A | Better suited for space-constrained PCBs but offers less surge margin than 1.5KE62AHE3/51 | Select SMBJ64A only if board area is critical and surge threat level is moderate (e.g., IEC 61000-4-5 Level 3). |
| 1.5KE62CA | Bi-directional variant; same VBR range but symmetric clamping in both polarities | Required for AC-coupled or floating signal lines (e.g., RS-485, CAN bus) where polarity reversal occurs | Choose 1.5KE62CA instead of 1.5KE62AHE3/51 only when protecting bidirectional data lines or AC sources. |
Compared with SMBJ64A and 1.5KE62CA, the 1.5KE62AHE3/51 delivers superior 1500 W surge handling and lower clamping voltage in unidirectional DC applications - making it optimal for high-reliability automotive and industrial power rail protection where energy absorption and thermal robustness are prioritized over footprint size.
Availability
1.5KE62AHE3/51 is available at Aetrix Electronics and suitable for automotive power systems, industrial sensor interfaces, telecom line cards, and consumer power adapter designs requiring stable component supply, AEC-Q101 compliance, and proven 1500 W surge resilience.
Supply support for 1.5KE62AHE3/51 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in high-reliability diodes, rectifiers, and protection devices for demanding industrial and automotive applications.
The 1.5KE family was engineered specifically for high-energy transient suppression in harsh environments, emphasizing rugged packaging, AEC-Q101 qualification, and consistent clamping performance across temperature and lifetime.
FAQ
What is the breakdown voltage tolerance of the 1.5KE62AHE3/51?
The 1.5KE62AHE3/51 has a specified breakdown voltage (VBR) range of 58.9 V to 65.1 V at 1.0 mA test current, corresponding to ±5% tolerance around the nominal 62 V rating. This tight tolerance ensures predictable clamping onset and compatibility with standard 48–60 V system designs.
Is the 1.5KE62AHE3/51 suitable for automotive applications?
Yes, the 1.5KE62AHE3/51 is AEC-Q101 qualified and rated for operation from –55 °C to +175 °C junction temperature. Its glass-passivated junction, matte tin plating, and JESD 201 Class 2 whisker resistance make it appropriate for under-hood ECUs, battery disconnect units, and ADAS power supplies.
How does the 1.5KE62AHE3/51 compare to MOV-based protection?
Unlike metal-oxide varistors, the 1.5KE62AHE3/51 offers sub-nanosecond response time, no degradation after repeated surges, and precise VBR/VC parameters. It provides deterministic clamping at 85.0 V without follow-on current, making it ideal for protecting low-voltage ICs where MOV let-through voltage and aging behavior are unacceptable.
What is the maximum reverse leakage current of the 1.5KE62AHE3/51 at rated standoff voltage?
At its maximum standoff voltage of 53.0 V and TA = 25 °C, the 1.5KE62AHE3/51 exhibits ≤1.0 µA reverse leakage current. This ultra-low leakage preserves efficiency in always-on circuits and avoids false triggering in high-impedance sensor bias networks.
Can the 1.5KE62AHE3/51 be used in parallel for higher surge capacity?
While TVS diodes can be paralleled, the 1.5KE62AHE3/51 is not recommended for direct parallel operation without current-sharing resistors due to VBR mismatch. For higher power needs, Vishay recommends using a single higher-rated device (e.g., 3KP62A) or staged protection with upstream GDTs.
1.5KE62AHE3/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- 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):
- 17.6A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE62AHE3/51 FAQ
1.How can I place an order for 1.5KE62AHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE62AHE3/51 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 1.5KE62AHE3/51 reliable?
The price and inventory of 1.5KE62AHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE62AHE3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KE62AHE3/51?
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1.5KE62AHE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE62AHE3/51 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 1.5KE62AHE3/51?
For technical support, including 1.5KE62AHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE62AHE3/51 requirements.
6.How does Aetrix verify that 1.5KE62AHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE62AHE3/51 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 1.5KE62AHE3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE62AHE3/51?
All 1.5KE62AHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE62AHE3/51, 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 1.5KE62AHE3/51 part is unused and in its original packaging.
Return procedure for 1.5KE62AHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE62AHE3/51 Tags
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