My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5KE13HE3/73
- Part No.:
- 1.5KE13HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE13HE3/73.pdf
- Description:
- TVS DIODE 10.5VWM 19VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:6,336
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5KE13HE3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 13 V nominal breakdown voltage (VBR = 12.4–13.7 V at 1.0 mA), 11.1 V maximum standoff voltage (VWM), 18.2 V clamping voltage (VC) at 82.4 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used to safeguard MOSFETs, ICs, and sensor interfaces in industrial and automotive electronics.
For engineers reviewing the 1.5KE13HE3/73 datasheet, 1.5KE13HE3/73 pinout, 1.5KE13HE3/73 application, or 1.5KE13HE3/73 equivalent, this device is selected for high-energy transient suppression where fast response (<1 ns), low clamping ratio (VC/VWM ≈ 1.64), and AEC-Q101 qualification (HE3 suffix) are required in harsh-environment designs.
Technical Context
This TVS diode employs a glass-passivated silicon junction optimized for bidirectional-capable unidirectional operation, with polarity indicated by a cathode band. Its thermal design supports 175 °C maximum junction temperature and 15.4 °C/W junction-to-lead thermal resistance, enabling reliable surge handling without heatsinking under short-duration transients.
The 1.5KE13HE3/73 delivers stable clamping performance across temperature via a +0.081 %/°C VBR temperature coefficient and maintains ≤5.0 µA reverse leakage at VWM, ensuring minimal standby power impact in always-on circuits such as automotive body control modules or industrial PLC I/O stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 12.4–13.7 V at 1.0 mA - defines precise conduction onset for predictable overvoltage triggering |
| Standoff Voltage VWM | 11.1 V max - ensures no conduction during normal 12 V rail operation with margin |
| Clamping Voltage VC | 18.2 V at 82.4 A IPPM - limits downstream voltage stress during 1500 W transient events |
| Peak Pulse Power PPPM | 1500 W (10/1000 µs) - sustains high-energy lightning or inductive-switching surges |
| Operating Temperature | −55 °C to +175 °C - supports under-hood automotive and industrial ambient conditions |
| AEC-Q101 Qualified | Yes (HE3 suffix) - validated for automotive reliability including temperature cycling and HTRB |
| Package | DO-201AD (Case Style 1.5KE) - industry-standard axial leaded package with 0.375" lead length |
Pinout & Package
1.5KE13HE3/73 uses the DO-201AD axial-leaded package (Case Style 1.5KE), with molded epoxy body meeting UL 94 V-0, matte tin-plated leads compliant with J-STD-002, and cathode identified by a color band on the case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; conducts during reverse-transient clamping |
| Cathode | High-side connection point | Marked with band; connected to protected line (e.g., 12 V supply or signal); blocks forward current |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance and long-term reliability under thermal cycling |
| 1500 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source) without degradation |
| Sub-nanosecond response time | Clamps transients before sensitive ICs experience overstress (tR < 1 ns) |
| AEC-Q101 qualification | Validated for automotive use including HTGB, TC, and HTRB per stress test requirements |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD or relay bounce) |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp positive-going surges above 13 V. Use Value: Limits voltage to ≤18.2 V during 1500 W pulses, preventing damage to LDOs and microcontrollers without adding series impedance. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure or temperature sensors) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted at connector entry point to shunt fast transients before reaching ADC front-end. Use Value: Sub-ns response ensures clamping occurs before 100 ns ESD pulse reaches sensitive op-amp inputs, preserving signal integrity. |
| Telecom Line Surge Protection | Consumer Power Adapter Input Stage |
Use Scenario: Safeguarding PoE-powered equipment from induced surges on Ethernet cables per IEC 61000-4-5. IC Role / Device Role / Timing Role: Paired unidirectional TVS devices on each data pair, referenced to local ground plane. Use Value: 18.2 V clamping prevents latch-up in PHY transceivers while supporting 100BASE-TX signal integrity up to 125 MHz. |
Use Scenario: Secondary-side overvoltage protection in AC/DC adapters after rectification and bulk capacitance. IC Role / Device Role / Timing Role: Standoff-rated TVS across DC output to suppress transformer ringing and rectifier reverse recovery spikes. Use Value: 11.1 V VWM allows safe operation at 12 V nominal output while clamping 20 V+ transients to protect downstream USB-PD controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ13A | Lower PPPM (400 W), SMA package (surface-mount), 13.3 V VBR min, 21.5 V VC at 18.9 A | Not AEC-Q101 qualified; suited for space-constrained consumer PCBs, not under-hood environments | Select when board area is limited and surge energy is ≤400 W; requires re-layout due to SMD footprint |
| 1.5KE13A | Same electrical specs but commercial-grade (E3 suffix only); lacks AEC-Q101 qualification and JESD 201 Class 2 whisker testing | Approved for industrial/commercial use only; excluded from automotive BOMs requiring PPAP documentation | Choose for cost-sensitive non-automotive designs where qualification traceability is not mandated |
Compared with 1.5KE13HE3/73, SMAJ13A trades peak power and qualification for compactness, while 1.5KE13A retains identical protection performance but omits automotive reliability validation - making 1.5KE13HE3/73 the sole choice when AEC-Q101 compliance and 1500 W surge handling are both mandatory.
Availability
1.5KE13HE3/73 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom line surge suppression requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for 1.5KE13HE3/73 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, MOSFETs, and passive components for demanding industrial and automotive applications.
The 1.5KE series was engineered specifically for high-energy transient suppression in 12 V and 24 V systems, balancing robust surge capability, tight VBR tolerance, and qualification-ready construction for mission-critical electronics.
FAQ
What is the clamping voltage of the 1.5KE13HE3/73 under maximum rated surge current?
The 1.5KE13HE3/73 exhibits a maximum clamping voltage (VC) of 18.2 V when subjected to its rated peak pulse current of 82.4 A using the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and guarantees that downstream circuitry remains below critical overvoltage thresholds during transient events. The 1.5KE13HE3/73 achieves this with low dynamic impedance, ensuring consistent performance across production lots and temperature ranges.
Is the 1.5KE13HE3/73 suitable for automotive applications?
Yes, the 1.5KE13HE3/73 is AEC-Q101 qualified and manufactured with JESD 201 Class 2 whisker-resistant plating, making it approved for automotive powertrain, body, and chassis systems. Its −55 °C to +175 °C operating range, validated HTGB and temperature cycling performance, and DO-201AD mechanical robustness meet OEM requirements for under-hood deployment. The 1.5KE13HE3/73 is explicitly listed in Vishay's AEC-Q101 qualified product matrix for the 1.5KE family.
How does the 1.5KE13HE3/73 differ from the standard 1.5KE13A part?
The 1.5KE13HE3/73 differs from 1.5KE13A primarily in qualification and process control: the HE3 suffix denotes AEC-Q101 qualification, JESD 201 Class 2 whisker testing, and enhanced traceability for automotive use, whereas 1.5KE13A carries only commercial-grade E3 qualification. Electrically, both share identical VBR, VWM, VC, and PPPM ratings. The 1.5KE13HE3/73 is the appropriate selection when PPAP documentation and automotive reliability validation are required.
What is the standoff voltage rating for the 1.5KE13HE3/73?
The 1.5KE13HE3/73 has a maximum working peak reverse voltage (VWM) of 11.1 V, meaning it remains in high-impedance blocking mode for all applied voltages up to this level at 25 °C. This provides a 0.9 V margin below typical 12 V nominal systems, accommodating ripple and tolerance while preventing false triggering. Reverse leakage stays ≤5.0 µA at VWM, minimizing quiescent power loss in battery-operated applications using the 1.5KE13HE3/73.
Does the 1.5KE13HE3/73 have polarity marking, and how is it oriented in circuit?
Yes, the 1.5KE13HE3/73 is unidirectional and features a cathode band (color stripe) on the case to identify the cathode terminal. In circuit, the cathode connects to the line being protected (e.g., +12 V rail), and the anode connects to ground - enabling conduction only during positive transients. This orientation ensures proper clamping action while blocking normal forward-biased operation. The 1.5KE13HE3/73 must not be installed in reverse, as doing so would cause immediate failure under normal bias.
1.5KE13HE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10.5V
- Voltage - Breakdown (Min):
- 11.7V
- Voltage - Clamping (Max) @ Ipp:
- 19V
- Current - Peak Pulse (10/1000µs):
- 78.9A
- 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
1.5KE13HE3/73 FAQ
1.How can I place an order for 1.5KE13HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE13HE3/73 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 1.5KE13HE3/73 reliable?
The price and inventory of 1.5KE13HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE13HE3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE13HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE13HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE13HE3/73?
1.5KE13HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE13HE3/73 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 1.5KE13HE3/73?
For technical support, including 1.5KE13HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE13HE3/73 requirements.
6.How does Aetrix verify that 1.5KE13HE3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE13HE3/73 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 1.5KE13HE3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE13HE3/73?
All 1.5KE13HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE13HE3/73, 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 1.5KE13HE3/73 part is unused and in its original packaging.
Return procedure for 1.5KE13HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE13HE3/73 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
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
