My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5KE13AHE3/51
- Part No.:
- 1.5KE13AHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE13AHE3/51.pdf
- Description:
- TVS DIODE 11.1VWM 18.2VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:2,619
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5KE13AHE3/51 from Vishay General Semiconductor is a uni-directional transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 12.4 V minimum breakdown voltage (VBR), 11.1 V maximum stand-off voltage (VWM), 18.2 V clamping voltage at 82.4 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 1.5KE13AHE3/51 datasheet, 1.5KE13AHE3/51 pinout, 1.5KE13AHE3/51 application, or 1.5KE13AHE3/51 equivalent, this device serves as a robust, fast-response (≤1 ns), glass-passivated junction solution for protecting MOSFETs, ICs, and sensor interfaces against inductive switching transients and ESD events in industrial and automotive systems.
Technical Context
This TVS diode operates as a uni-directional clamping device with cathode-marked polarity, leveraging a silicon avalanche structure to divert surge energy away from protected circuitry. Its 1500 W peak pulse power capability is rated under standardized 10/1000 µs waveform conditions with 0.01% duty cycle, and it maintains stable clamping performance across -55 °C to +175 °C operating junction temperature.
The device exhibits low incremental surge resistance and excellent clamping ratio (VC/VBR ≈ 1.47), enabling precise voltage limiting during transient events. Its 75 °C/W junction-to-ambient thermal resistance and 15.4 °C/W junction-to-lead resistance support reliable power dissipation in PCB-mounted applications without active cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min) | 12.4 V - Ensures reliable avalanche conduction onset above normal operating voltage |
| VWM | 11.1 V - Maximum continuous reverse working voltage before leakage exceeds 5 µA |
| VC @ IPPM | 18.2 V - Clamped voltage seen by protected circuit during 82.4 A transient event |
| PPPM | 1500 W - Peak surge power handling capacity under standard 10/1000 µs test waveform |
| IPPM | 82.4 A - Maximum non-repetitive surge current the device can safely clamp |
| TJ max | +175 °C - Enables operation in high-temperature under-hood automotive environments |
| AEC-Q101 | Qualified - Validated for automotive electronic systems per stress-test requirements |
Pinout & Package
Package: Axial-leaded DO-201AD (Case Style 1.5KE), molded epoxy body with matte tin-plated leads; RoHS-compliant and qualified to JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of protected line (e.g., ground or return path) |
| Cathode (banded end) | Avalanche conduction terminal | Connected to higher-potential side (e.g., VIN, signal line); initiates clamping when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable, repeatable avalanche characteristics and long-term reliability under thermal cycling |
| 1500 W peak pulse power (10/1000 µs) | Supports robust protection against severe inductive load-switching surges in motor drives and power supplies |
| Response time ≤1 ns | Clamps transients before sensitive downstream components experience damaging overvoltage |
| AEC-Q101 qualification | Validates suitability for automotive ECUs, body control modules, and ADAS sensor interfaces |
| Low clamping ratio (VC/VBR = 1.47) | Minimizes voltage overshoot during clamping, reducing stress on protected MOSFETs and ICs |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontrollers and CAN transceivers from load-dump and jump-start transients. IC Role / Device Role / Timing Role: Uni-directional TVS placed between VBAT and ground to clamp positive-going surges up to ±35 V. Use Value: Limits voltage seen by protected ICs to ≤18.2 V during 82.4 A transients, preventing latch-up or gate oxide damage. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) in PLC I/O modules from field-wiring induced surges. IC Role / Device Role / Timing Role: Standoff-connected TVS on signal line to ground, activated only during overvoltage events >11.1 V. Use Value: Maintains signal integrity during normal operation (leakage <5 µA at 11.1 V) while responding within 1 ns to fast transients. |
| DC-DC Converter Input Protection | MOSFET Gate Driver Protection |
Use Scenario: Shielding buck converter input stages from back-EMF spikes generated by relay coils or solenoids. IC Role / Device Role / Timing Role: Primary overvoltage clamp on VIN rail upstream of input capacitor and controller IC. Use Value: Absorbs 1500 W surge energy without degradation, preserving converter startup behavior and regulation stability. |
Use Scenario: Preventing gate oxide rupture in high-side N-channel MOSFET drivers exposed to shoot-through or Miller-induced spikes. IC Role / Device Role / Timing Role: Low-capacitance TVS between gate and source, triggered only when VGS exceeds 12.4 V. Use Value: Clamps gate voltage to ≤18.2 V within 1 ns, avoiding irreversible gate failure while adding negligible capacitance (<100 pF). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13A | DO-214AA package (SMB), 13.3 V VBR min, 11.1 V VWM, 20.9 V VC @ 71.8 A, 600 W PPPM | Lower power rating and surface-mount format; suited for space-constrained PCBs but not direct replacement for axial leaded layouts | Select SMBJ13A when board space is limited and peak surge energy is ≤600 W; requires layout revision due to SMD footprint |
| 1.5KE13CA | Bi-directional variant (same VBR, VWM, VC ratings), symmetric clamping for AC-coupled or floating signal lines | Applicable where bidirectional transients occur (e.g., RS-485, Ethernet PHY lines); lacks polarity marking and supports ±12.4 V breakdown | Choose 1.5KE13CA for differential or AC signal protection; not interchangeable with 1.5KE13AHE3/51 without circuit review |
Compared with SMBJ13A, 1.5KE13AHE3/51 delivers 2.5× higher surge power handling and axial through-hole mounting for mechanical robustness; compared with 1.5KE13CA, it provides optimized unidirectional clamping for DC rails with tighter VC margin and cathode-defined orientation.
Availability
1.5KE13AHE3/51 is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC I/O modules, DC-DC converter inputs, and MOSFET gate driver circuits requiring stable component supply with AEC-Q101 assurance and long-lifecycle availability.
Supply support for 1.5KE13AHE3/51 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 diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific performance.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments-targeting automotive, industrial, and telecom infrastructure where robustness against lightning-induced surges and inductive switching spikes is critical.
FAQ
What is the breakdown voltage tolerance for 1.5KE13AHE3/51?
The 1.5KE13AHE3/51 has a specified breakdown voltage range of 12.4 V (minimum) to 13.7 V (maximum) at 1.0 mA test current, per Vishay Document 88301. This ±5.4% tolerance ensures consistent clamping onset across production lots while allowing design margin for worst-case VBR drift over temperature and lifetime. The 1.5KE13AHE3/51 maintains this specification under JEDEC-standard test conditions.
Is 1.5KE13AHE3/51 suitable for automotive applications?
Yes, 1.5KE13AHE3/51 is AEC-Q101 qualified per Vishay's documentation, confirming its reliability for automotive use cases including engine control units, body electronics, and infotainment power supplies. Its -55 °C to +175 °C operating junction temperature range, glass-passivated junction, and 1500 W surge capability meet stringent automotive transient immunity requirements such as ISO 7637-2 and ISO 16750-2.
How does the clamping voltage of 1.5KE13AHE3/51 compare to its breakdown voltage?
The 1.5KE13AHE3/51 clamps at 18.2 V when subjected to its rated 82.4 A peak pulse current (10/1000 µs), resulting in a clamping ratio (VC/VBR(min)) of approximately 1.47. This tight ratio reflects low incremental surge resistance and ensures minimal overvoltage stress on protected components-critical for safeguarding modern low-voltage ICs and MOSFETs whose absolute maximum ratings may be only 20 V.
What is the maximum reverse leakage current for 1.5KE13AHE3/51 at rated standoff voltage?
At its maximum stand-off voltage of 11.1 V and ambient temperature of 25 °C, the 1.5KE13AHE3/51 exhibits a maximum reverse leakage current (ID) of 5.0 µA. This low leakage preserves signal integrity and minimizes standby power loss in always-on circuits such as automotive wake-up receivers or industrial sensor nodes-key for battery-powered or energy-efficient designs using the 1.5KE13AHE3/51.
Does 1.5KE13AHE3/51 have a defined polarity marking, and how is it oriented in circuit?
Yes, 1.5KE13AHE3/51 is a uni-directional TVS diode with a visible cathode band on the epoxy body. In circuit, the banded (cathode) end connects to the higher-potential node (e.g., VIN, signal line), while the anode connects to ground or return. This orientation enables clamping only during positive transients relative to ground-ensuring correct operation in DC-biased protection schemes used with the 1.5KE13AHE3/51.
1.5KE13AHE3/51 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):
- 11.1V
- Voltage - Breakdown (Min):
- 12.4V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 82.4A
- 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
1.5KE13AHE3/51 FAQ
1.How can I place an order for 1.5KE13AHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE13AHE3/51 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 1.5KE13AHE3/51 reliable?
The price and inventory of 1.5KE13AHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE13AHE3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KE13AHE3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE13AHE3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE13AHE3/51?
1.5KE13AHE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE13AHE3/51 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 1.5KE13AHE3/51?
For technical support, including 1.5KE13AHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE13AHE3/51 requirements.
6.How does Aetrix verify that 1.5KE13AHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE13AHE3/51 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 1.5KE13AHE3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE13AHE3/51?
All 1.5KE13AHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE13AHE3/51, 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 1.5KE13AHE3/51 part is unused and in its original packaging.
Return procedure for 1.5KE13AHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE13AHE3/51 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
