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Vishay General Semiconductor - Diodes Division 1.5KA16AHE3/54
- Part No.:
- 1.5KA16AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KA16AHE3/54.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC 1.5KA
- Quantity:
- Payment:
- Shipping:
Inventory:9,211
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Product details
Overview
1.5KA16AHE3/54 from Vishay General Semiconductor is an automotive-grade unidirectional transient voltage suppressor (TVS) diode designed for high-energy surge protection in harsh environments. It delivers 1500 W peak pulse power (10/1000 µs), clamps at 22.5 V under 66.7 A peak pulse current, and operates up to +185 °C junction temperature - ideal for protecting MOSFETs and sensor signal lines in automotive powertrain control units.
For engineers reviewing the 1.5KA16AHE3/54 datasheet, 1.5KA16AHE3/54 pinout, 1.5KA16AHE3/54 application, or 1.5KA16AHE3/54 equivalent, key selection criteria include AEC Q101 qualification, 15.2–16.8 V breakdown voltage range, low 0.086 %/°C VBR temperature coefficient, and RoHS-compliant HE3 packaging with JESD201 Class 2 whisker resistance.
Technical Context
This TVS diode employs Vishay's patented PAR® construction for stable clamping under repetitive surge stress and maintains performance across -65 °C to +185 °C operating range. Its unidirectional polarity and 13.6 V stand-off voltage enable reliable DC line protection without forward conduction during normal operation.
The device sustains 200 A non-repetitive forward surge (8.3 ms half-sine) and exhibits 3.5 V maximum forward voltage at 100 A, supporting robust overcurrent resilience in automotive load-dump scenarios. Its 1.0 µA max reverse leakage at 13.6 V ensures minimal standby power loss in always-on vehicle subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 1500 W - withstands ISO 7637-2 Pulse 5a/b load-dump transients in 12 V automotive systems |
| Breakdown Voltage VBR | 15.2–16.8 V at 1.0 mA - defines precise clamping onset for 12 V rail protection |
| Clamping Voltage VC | 22.5 V at 66.7 A - limits downstream IC voltage stress below 24 V absolute maximum ratings |
| Stand-off Voltage VWM | 13.6 V - ensures no conduction during nominal 12 V system operation |
| Junction Temperature Range | -65 °C to +185 °C - certified for under-hood placement per AEC Q101 stress testing |
| Surge Current IPPM | 66.7 A - supports protection of CAN transceivers and LIN bus nodes against ESD and EFT |
| Temperature Coefficient | 0.086 %/°C - guarantees <±5 % VBR drift over full automotive temperature range |
Pinout & Package
Case Style 1.5KA: axial-leaded DO-201AD package with matte tin-plated leads; cathode indicated by color band; UL 94 V-0 molded epoxy body; 0.375" (9.5 mm) lead length; 0.210" (5.3 mm) body diameter.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during reverse-biased clamping | Connected to protected line (e.g., battery feed); sinks surge current to ground via cathode |
| Cathode | Current exit point during clamping; marked by band | Connected to system ground; establishes reference for precise VBR threshold and low-impedance surge path |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR® construction | Enables consistent clamping performance over 1000+ surge events without parameter drift |
| AEC Q101 qualification | Validated for automotive under-hood use including temperature cycling, HTRB, and mechanical shock |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth in high-humidity, high-temperature environments (e.g., engine control modules) |
| 10/1000 µs waveform capability | Matches ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 surge test profiles |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns rise time), improving IC survivability |
Applications
| Automotive Powertrain Control | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting microcontroller I/O and gate drivers from load-dump transients in 12 V engine control units. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery rail and protected IC inputs. Use Value: Limits voltage to ≤22.5 V during 1500 W surges, preventing latch-up or oxide breakdown in 3.3 V/5 V logic interfaces. |
Use Scenario: Safeguarding PLC analog input channels from inductive kickback when solenoids de-energize. IC Role / Device Role / Timing Role: Standoff protector on 24 V sensor supply line upstream of ADC front-end. Use Value: Maintains 13.6 V stand-off while clamping 66.7 A surges, preserving signal integrity and eliminating need for external series resistors. |
| Automotive Sensor Signal Lines | Telecom Power Feeds |
Use Scenario: Shielding CAN FD transceiver data lines from ESD and coupled transients in ADAS camera modules. IC Role / Device Role / Timing Role: Low-capacitance TVS (CJ ≈ 100–200 pF) placed at connector interface. Use Value: Clamps to 22.5 V within nanoseconds while adding <0.5 ns propagation delay, preserving 5 Mbps CAN FD timing margins. |
Use Scenario: Overvoltage protection on -48 V telecom rectifier outputs exposed to lightning-induced surges. IC Role / Device Role / Timing Role: High-power unidirectional clamp on DC distribution bus before DC/DC converters. Use Value: Handles 1500 W pulses without degradation, enabling single-device protection instead of stacked TVS arrays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16AHE3/A | Lower PPPM (400 W), SMA package (smaller footprint), same VBR range (15.2–16.8 V) | Suitable for space-constrained PCBs but insufficient for ISO 7637-2 Pulse 5a compliance | Select when board area is critical and surge energy is limited to ≤400 W |
| 1.5KE16A | Same 1500 W rating and VBR, but TO-204AA (DO-41) package; not AEC Q101 qualified | Lacks automotive reliability validation; higher thermal resistance due to smaller case | Acceptable for industrial/commercial use where AEC Q101 is not mandated |
Compared with SMAJ16AHE3/A and 1.5KE16A, the 1.5KA16AHE3/54 uniquely combines AEC Q101 qualification, DO-201AD mechanical robustness, and full 1500 W load-dump capability - making it the only option qualified for under-hood automotive deployment requiring both high energy handling and long-term reliability.
Availability
1.5KA16AHE3/54 is available at Aetrix Electronics and suitable for automotive powertrain control, industrial motor drive inputs, automotive sensor signal lines, and telecom power feeds requiring stable component supply across extended temperature ranges and high-reliability production cycles.
Supply support for 1.5KA16AHE3/54 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 1.5KA family was engineered specifically for AEC Q101-compliant transient suppression in automotive electrical systems, emphasizing thermal stability, surge endurance, and process-controlled parametric consistency across temperature extremes.
FAQ
What is the exact breakdown voltage range specified for 1.5KA16AHE3/54?
The 1.5KA16AHE3/54 has a guaranteed breakdown voltage (VBR) range of 15.2 V to 16.8 V at 1.0 mA test current, measured per ANSI/IEEE C62.35 standards. This tight tolerance ensures predictable clamping onset in 12 V automotive systems and eliminates ambiguity during circuit design verification. The value is confirmed in the Electrical Characteristics table of Vishay document 88300, revision 20-Oct-08.
Is 1.5KA16AHE3/54 qualified for automotive use under AEC Q101?
Yes, the 1.5KA16AHE3/54 is explicitly AEC Q101 qualified, as stated in the "Notes" section of the Vishay datasheet (document 88300). This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and accelerated life testing - confirming suitability for under-hood automotive applications such as engine control modules and transmission control units.
What does the HE3/54 suffix indicate in 1.5KA16AHE3/54?
The HE3 suffix denotes RoHS-compliant, high-reliability construction meeting JESD201 Class 2 whisker resistance requirements, while the /54 indicates packaging in 13-inch paper tape and reel with a base quantity of 1400 units. This packaging format enables automated SMT placement and supports high-volume automotive manufacturing flow, as documented in the Ordering Information section of Vishay document 88300.
How does the clamping voltage of 1.5KA16AHE3/54 compare to its breakdown voltage?
The 1.5KA16AHE3/54 clamps at 22.5 V when subjected to its rated 66.7 A peak pulse current (10/1000 µs), which is approximately 40 % above its minimum breakdown voltage of 15.2 V. This controlled voltage margin ensures protected ICs remain within safe operating limits while maintaining sufficient headroom to avoid false triggering during normal voltage excursions.
Can 1.5KA16AHE3/54 be used in bidirectional configurations?
No, the 1.5KA16AHE3/54 is unidirectional only, as clearly stated in the FEATURES section of the Vishay datasheet. Its internal structure and polarity marking (cathode band) support clamping only on the reverse-biased side. For bidirectional protection, a separate device such as the 1.5KAS16AHE3/54 would be required - the 1.5KA16AHE3/54 must be oriented correctly in-circuit to function as intended.
1.5KA16AHE3/54 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):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 66.7A
- 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
1.5KA16AHE3/54 FAQ
1.How can I place an order for 1.5KA16AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KA16AHE3/54 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 1.5KA16AHE3/54 reliable?
The price and inventory of 1.5KA16AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KA16AHE3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KA16AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KA16AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KA16AHE3/54?
1.5KA16AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KA16AHE3/54 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 1.5KA16AHE3/54?
For technical support, including 1.5KA16AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KA16AHE3/54 requirements.
6.How does Aetrix verify that 1.5KA16AHE3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KA16AHE3/54 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 1.5KA16AHE3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KA16AHE3/54?
All 1.5KA16AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KA16AHE3/54, 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 1.5KA16AHE3/54 part is unused and in its original packaging.
Return procedure for 1.5KA16AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KA16AHE3/54 Tags
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