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Vishay General Semiconductor - Diodes Division 1.5KA22AHE3/54
- Part No.:
- 1.5KA22AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KA22AHE3/54.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC 1.5KA
- Quantity:
- Payment:
- Shipping:
Inventory:3,205
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Product details
Overview
1.5KA22AHE3/54 from Vishay General Semiconductor is a unidirectional automotive-grade transient voltage suppressor (TVS) diode designed for high-energy surge protection in power rails and signal lines. It delivers 1500 W peak pulse power (10/1000 µs), clamps at 30.6 V under 49.0 A surge current, and operates up to +185 °C junction temperature - enabling robust protection in engine control units, ABS modules, and body electronics.
For engineers reviewing the 1.5KA22AHE3/54 datasheet, 1.5KA22AHE3/54 pinout, 1.5KA22AHE3/54 application, or 1.5KA22AHE3/54 equivalent, key selection criteria include its AEC-Q101 qualification, 20.9–23.1 V breakdown range, low 0.092 %/°C VBR tempco, and HE3 suffix compliance with JESD201 Class 2 whisker resistance.
Technical Context
The 1.5KA22AHE3/54 employs Vishay's patented PAR® construction for stable clamping under repetitive transients and high-temperature operation. Its unidirectional polarity and 1.0 mA test current ensure precise VBR definition per ANSI/IEEE C62.35, with clamping voltage tightly controlled at 30.6 V (max) at 49.0 A IPPM.
Designed for automotive environments, it features a molded epoxy case rated UL 94 V-0, matte tin-plated leads compliant with J-STD-002 and JESD22-B102, and thermal derating validated from −65 °C to +185 °C operating range - supporting reliable performance in under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 1500 W - sustains high-energy load dump and ISO 7637-2 Pulse 5a transients without failure |
| Breakdown Voltage VBR | 20.9–23.1 V at 1.0 mA - ensures accurate triggering above system nominal voltage (e.g., 12 V automotive) |
| Clamping Voltage VC | 30.6 V max at 49.0 A - limits downstream IC stress below safe threshold during surge events |
| Stand-off Voltage VWM | 18.8 V - provides margin against false triggering during normal 12 V rail operation with ripple |
| Junction Temperature Range | −65 °C to +185 °C - supports direct mounting near heat sources in engine compartments |
| AEC-Q101 Qualified | Yes - certified for automotive electronic systems per stress test requirements (HTOL, TCT, etc.) |
| RoHS & Whisker Compliance | RoHS 2002/95/EC; JESD201 Class 2 - eliminates tin whisker risk in long-life automotive deployments |
Pinout & Package
Package: Case Style 1.5KA - axial-leaded, molded epoxy body (UL 94 V-0), 0.375" (9.5 mm) lead length, 0.210" (5.3 mm) body diameter. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to protected circuit ground or low-side return | Enables unidirectional clamping from cathode to anode during reverse surge events |
| Cathode | Surge current sink during transient; marked by color band | Connected to power rail or signal line requiring overvoltage protection - absorbs energy into ground path |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR® construction | Ensures consistent clamping performance across temperature and lifetime, minimizing parameter drift under thermal cycling |
| 1500 W peak pulse power (10/1000 µs) | Handles severe automotive load dump surges (ISO 7637-2 Pulse 5a) without degradation |
| Low incremental surge resistance | Reduces VC overshoot during fast-rising transients (<1 ns rise time), improving protection margin |
| Solder dip 260 °C, 40 s | Supports standard lead-free reflow and wave soldering processes without delamination or parameter shift |
| Automotive-grade reliability | AEC-Q101 qualification and HE3 suffix confirm suitability for safety-critical vehicle subsystems |
Applications
| Engine Control Unit (ECU) Power Input | ABS Module Signal Line Protection |
|---|---|
Use Scenario: Protects 12 V supply input of engine control units against load dump transients up to 35 V and 100 ms duration. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and DC/DC input filter. Use Value: Clamps surge to ≤30.6 V, preventing damage to MCU, CAN transceivers, and voltage regulators downstream. |
Use Scenario: Shields analog sensor inputs (wheel speed, pressure) in anti-lock braking systems from ESD and inductive switching noise. IC Role / Device Role / Timing Role: Low-capacitance TVS on differential signal pairs before op-amp front-end. Use Value: Maintains signal integrity with <10 µA leakage at 18.8 V while suppressing >15 kV HBM ESD events. |
| Body Control Module (BCM) LIN Bus | Infotainment Head Unit Power Rail |
Use Scenario: Guards LIN bus transceiver I/O pins against cable discharge events and alternator ripple coupling. IC Role / Device Role / Timing Role: Unidirectional TVS tied between LIN line and chassis ground, adjacent to transceiver. Use Value: Fast response (<1 ns) and 30.6 V clamping prevent transceiver latch-up during 12 V system disturbances. |
Use Scenario: Safeguards 5 V/3.3 V power domains in head units from cold crank and jump-start voltage spikes. IC Role / Device Role / Timing Role: Primary TVS on main DC/DC converter input, upstream of bulk capacitance. Use Value: 1500 W rating handles sustained 200 A surge currents (per IFSM spec), ensuring no single-event failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22AHE3/52 | Lower peak pulse power (600 W), smaller SMB package, same VBR range (20.9–23.1 V) | Targeted at space-constrained PCBs with lower surge energy requirements (e.g., infotainment peripherals) | Select when board area is critical and surge exposure is limited to ISO 10605 ESD or low-energy transients |
| 1.5KE22A | Same 1500 W rating but non-automotive grade; lacks AEC-Q101 qualification and HE3 whisker compliance | Suitable for industrial or consumer applications where automotive reliability and long-term whisker resistance are not required | Choose only for cost-sensitive non-automotive designs - not qualified for under-hood deployment |
Compared with 1.5KA22AHE3/54, SMBJ22AHE3/52 trades surge robustness for footprint reduction, while 1.5KE22A omits automotive-specific qualifications - making 1.5KA22AHE3/54 the sole option meeting full AEC-Q101, high-temp, and whisker-resistant requirements for safety-critical vehicle systems.
Availability
1.5KA22AHE3/54 is available at Aetrix Electronics and suitable for engine control units, ABS modules, body control modules, and infotainment power systems requiring stable component supply across extended automotive production lifecycles.
Supply support for 1.5KA22AHE3/54 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, MOSFETs, and optoelectronics for demanding industrial and automotive applications.
The 1.5KA22AHE3/54 belongs to Vishay's automotive TVS diode family engineered specifically for AEC-Q101 compliance, high-temperature stability, and transient immunity in vehicle power and signal networks.
FAQ
What is the breakdown voltage range of the 1.5KA22AHE3/54?
The 1.5KA22AHE3/54 has a specified breakdown voltage (VBR) range of 20.9 V to 23.1 V at 1.0 mA test current, measured per ANSI/IEEE C62.35 standards. This tight tolerance ensures reliable triggering above nominal 12 V automotive system voltage while avoiding nuisance conduction during normal operation with ripple or cold-crank dips. The value is confirmed in the Electrical Characteristics table of Vishay document 88300.
Is the 1.5KA22AHE3/54 qualified for automotive use?
Yes, the 1.5KA22AHE3/54 is explicitly AEC-Q101 qualified and designated as automotive grade (Base P/NHE3). It meets all stress tests including high-temperature operating life, temperature cycling, and mechanical shock - verified in Vishay's qualification report referenced in document 88300, Note (1). Its HE3 suffix further confirms JESD201 Class 2 whisker resistance for long-term reliability.
What is the maximum clamping voltage for the 1.5KA22AHE3/54 under surge conditions?
The 1.5KA22AHE3/54 exhibits a maximum clamping voltage (VC) of 30.6 V at 49.0 A peak pulse current (IPPM) using the standard 10/1000 µs waveform. This value is measured per Figure 1 and Table on page 2 of Vishay document 88300 and defines the upper voltage limit imposed on protected circuits during worst-case transients.
Does the 1.5KA22AHE3/54 have unidirectional or bidirectional polarity?
The 1.5KA22AHE3/54 is unidirectional only, as stated in the FEATURES section of Vishay document 88300. Its cathode is marked by a color band, and it conducts only during reverse-bias surge events - making it appropriate for DC power rail protection where polarity is fixed and forward conduction must be avoided.
What packaging format is used for the 1.5KA22AHE3/54?
The 1.5KA22AHE3/54 is supplied in 13" diameter paper tape and reel packaging, with base quantity 1400 units per reel and package code 54. This format is specified in the ORDERING INFORMATION section of Vishay document 88300 and supports automated SMT placement via axial-leaded carrier tape feeders.
1.5KA22AHE3/54 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):
- 18.8V
- Voltage - Breakdown (Min):
- 20.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.6V
- Current - Peak Pulse (10/1000µs):
- 49A
- 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
1.5KA22AHE3/54 FAQ
1.How can I place an order for 1.5KA22AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KA22AHE3/54 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 1.5KA22AHE3/54 reliable?
The price and inventory of 1.5KA22AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KA22AHE3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KA22AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KA22AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KA22AHE3/54?
1.5KA22AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KA22AHE3/54 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 1.5KA22AHE3/54?
For technical support, including 1.5KA22AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KA22AHE3/54 requirements.
6.How does Aetrix verify that 1.5KA22AHE3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KA22AHE3/54 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 1.5KA22AHE3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KA22AHE3/54?
All 1.5KA22AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KA22AHE3/54, 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 1.5KA22AHE3/54 part is unused and in its original packaging.
Return procedure for 1.5KA22AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KA22AHE3/54 Tags
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