My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5KA15AHE3/54
- Part No.:
- 1.5KA15AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KA15AHE3/54.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC 1.5KA
- Quantity:
- Payment:
- Shipping:
Inventory:2,746
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5KA15AHE3/54 from Vishay General Semiconductor is a unidirectional automotive-grade transient voltage suppressor (TVS) diode designed for high-reliability inductive load switching protection. It delivers 1500 W peak pulse power (10/1000 µs), clamps at 21.2 V under 70.8 A surge current, and operates up to +185 °C junction temperature - deployed in automotive sensor signal lines and MOSFET gate protection.
For engineers reviewing the 1.5KA15AHE3/54 datasheet, 1.5KA15AHE3/54 pinout, 1.5KA15AHE3/54 application, or 1.5KA15AHE3/54 equivalent, key selection criteria include its AEC-Q101 qualification, 14.3–15.8 V breakdown range, 12.8 V stand-off voltage, low 0.084 %/°C VBR tempco, and RoHS-compliant HE3 packaging with JESD201 Class 2 whisker resistance.
Technical Context
This TVS diode uses Vishay's patented PAR® construction for stable clamping under repetitive transients and features a molded epoxy case rated UL 94 V-0. Its unidirectional polarity and cathode band marking enable straightforward integration into DC-biased protection paths.
Designed for automotive environments, it sustains operation from –65 °C to +185 °C, supports 200 A non-repetitive forward surge (8.3 ms half-sine), and maintains <1 µA reverse leakage at 12.8 V (TJ = 150 °C), ensuring minimal standby power impact in always-on systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 1500 W - withstands severe load-dump and ISO 7637-2 pulse 5a transients without failure |
| Breakdown Voltage (VBR) | 14.3–15.8 V at 1 mA - ensures reliable triggering above system nominal voltage while avoiding false trips |
| Clamping Voltage (VC) | 21.2 V at 70.8 A - limits downstream IC/MOSFET stress to safe levels during surge events |
| Stand-off Voltage (VWM) | 12.8 V - blocks normal operating voltage with <1 µA leakage at 150 °C, minimizing quiescent loss |
| Operating Temperature Range | –65 °C to +185 °C - qualified for under-hood automotive placement per AEC-Q101 |
| Surge Current (IPPM) | 70.8 A - handles high-energy inductive kickback from solenoids, relays, and motors |
| Tempco of VBR | 0.084 %/°C - enables predictable clamping shift across wide ambient ranges |
Pinout & Package
Package: Case Style 1.5KA - axial-leaded, molded epoxy body (UL 94 V-0), matte tin-plated leads solderable per J-STD-002/JESD22-B102, cathode denoted by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | DC return path for clamped surge current | Connected to ground or low-side reference; carries full IPPM during transient |
| Cathode | Protected line input terminal | Connected to signal/power line being protected; voltage referenced to anode during clamping |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR® construction | Enables consistent clamping performance over lifetime and thermal cycling, critical for automotive field reliability |
| AEC-Q101 qualification (HE3 suffix) | Validated for automotive use including temperature cycling, HTRB, and ESD robustness per JEDEC standards |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth under high-temp/humidity, eliminating latent short-circuit risk in sealed modules |
| 1500 W peak pulse rating (10/1000 µs) | Meets ISO 7637-2 Pulse 5a requirements for 12 V vehicle systems without derating |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns rise time), improving protection margin |
Applications
| Automotive Sensor Protection | Industrial Motor Drive I/O |
|---|---|
Use Scenario: Protecting analog output signals from wheel speed, throttle position, or pressure sensors exposed to relay coil flyback and alternator load dump. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and ECU input, clamping transients before they reach precision ADC front-end. Use Value: Maintains signal integrity with 21.2 V clamping ceiling, preventing ADC saturation or latch-up while surviving >1000 surges per AEC-Q101 life test. | Use Scenario: Safeguarding PLC digital I/O channels driving 24 V DC solenoids and contactors in factory automation cabinets. IC Role / Device Role / Timing Role: Standoff protection on sink-input terminals, absorbing inductive kickback during de-energization. Use Value: Withstands 200 A 8.3 ms surge pulses and operates continuously at +105 °C ambient, enabling compact enclosure designs without forced cooling. |
| Automotive Body Control Module | Telecom Power Interface |
Use Scenario: Input protection for LIN bus transceivers and LED driver ICs in door modules subjected to battery reverse connection and jump-start spikes. IC Role / Device Role / Timing Role: First-line defense on 12 V supply rail, limiting voltage to ≤21.2 V during 1000 µs transients. Use Value: AEC-Q101 qualification and –65 °C low-temp capability ensure operation across global vehicle deployment zones, including cold-climate start-up. | Use Scenario: DC power feed protection in PoE-powered remote radio units exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Secondary surge clamp after primary GDT or MOV, refining clamping level for sensitive RF front-end ICs. Use Value: Tight 14.3–15.8 V VBR tolerance and 0.084 %/°C tempco allow precise coordination with upstream protectors in multi-stage architectures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A | 600 W PPPM rating, SMC package, 15.0–16.7 V VBR, 24.4 V VC at 24.5 A | Limited to lower-energy transients; not AEC-Q101 qualified | Select when cost-sensitive industrial designs require basic IEC 61000-4-5 Level 3 protection without automotive qualification |
| 1.5KE15A | Same 1500 W rating but TO-204AA (DO-4) package, higher 24.4 V VC, no HE3 whisker compliance | Higher clamping voltage reduces protection margin for 3.3 V/5 V logic; lacks automotive process controls | Choose only for legacy board replacements where 1.5KA15AHE3/54 footprint is unavailable and AEC-Q101 is not required |
Compared with SMBJ15A and 1.5KE15A, the 1.5KA15AHE3/54 provides superior automotive reliability via AEC-Q101 qualification, lower clamping (21.2 V vs. ≥24.4 V), and JESD201 Class 2 whisker resistance - making it the sole choice for new automotive sensor and body control designs requiring long-term field robustness.
Availability
1.5KA15AHE3/54 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial motor drive I/O, and telecom power interface applications requiring stable component supply, traceable sourcing, and lifecycle continuity.
Supply support for 1.5KA15AHE3/54 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 1.5KA series was engineered specifically for AEC-Q101-compliant transient suppression in harsh automotive environments - emphasizing thermal stability, surge endurance, and long-term parametric consistency under temperature cycling.
FAQ
What is the breakdown voltage range of the 1.5KA15AHE3/54?
The 1.5KA15AHE3/54 has a specified breakdown voltage (VBR) range of 14.3 V to 15.8 V at 1 mA test current, measured per ANSI/IEEE C62.35. This tight tolerance ensures predictable turn-on behavior in automotive 12 V systems and allows precise coordination with downstream overvoltage thresholds. The value is confirmed in the Electrical Characteristics table of Vishay document 88300, revision 20-Oct-08.
Is the 1.5KA15AHE3/54 qualified for automotive use?
Yes, the 1.5KA15AHE3/54 is AEC-Q101 qualified and designated as automotive grade per its HE3 suffix. It meets rigorous stress tests including temperature cycling, high-temperature reverse bias (HTRB), and accelerated moisture resistance, as documented in Vishay's qualification report referenced in datasheet 88300. This makes the 1.5KA15AHE3/54 suitable for under-hood and body-control module applications.
What is the maximum clamping voltage of the 1.5KA15AHE3/54 during a surge event?
The 1.5KA15AHE3/54 clamps to a maximum of 21.2 V when subjected to its rated peak pulse current of 70.8 A (10/1000 µs waveform). This value is measured per standard test conditions in the datasheet and defines the upper voltage limit imposed on protected circuitry during transient events - critical for safeguarding 3.3 V, 5 V, and 12 V ICs in automotive and industrial systems.
Does the 1.5KA15AHE3/54 have RoHS and lead-free compliance?
Yes, the 1.5KA15AHE3/54 is RoHS 2002/95/EC compliant and features matte tin-plated leads meeting J-STD-002 and JESD22-B102 solderability standards. The HE3 suffix explicitly denotes RoHS compliance, high reliability, and JESD201 Class 2 whisker resistance - verified in the Mechanical Data section of Vishay document 88300.
What package type and mounting method does the 1.5KA15AHE3/54 use?
The 1.5KA15AHE3/54 uses Case Style 1.5KA: an axial-leaded, molded epoxy package with UL 94 V-0 flammability rating. Leads are matte tin-plated and compatible with wave and reflow soldering (260 °C, 40 s max). The cathode is marked by a color band, and the device is supplied in 13" paper tape and reel (package code 54, base quantity 1400 units).
1.5KA15AHE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 70.8A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KA
1.5KA15AHE3/54 FAQ
1.How can I place an order for 1.5KA15AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KA15AHE3/54 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 1.5KA15AHE3/54 reliable?
The price and inventory of 1.5KA15AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KA15AHE3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KA15AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KA15AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KA15AHE3/54?
1.5KA15AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KA15AHE3/54 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 1.5KA15AHE3/54?
For technical support, including 1.5KA15AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KA15AHE3/54 requirements.
6.How does Aetrix verify that 1.5KA15AHE3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KA15AHE3/54 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 1.5KA15AHE3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KA15AHE3/54?
All 1.5KA15AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KA15AHE3/54, 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 1.5KA15AHE3/54 part is unused and in its original packaging.
Return procedure for 1.5KA15AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KA15AHE3/54 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 …
