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Vishay General Semiconductor - Diodes Division 1.5KA27A5800HE3/54
- Part No.:
- 1.5KA27A5800HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KA27A5800HE3/54.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC 1.5KA
- Quantity:
- Payment:
- Shipping:
Inventory:5,762
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Product details
Overview
1.5KA27A5800HE3/54 from Vishay General Semiconductor is an automotive-grade unidirectional transient voltage suppressor (TVS) diode in the 1.5KA case style, rated for 1500 W peak pulse power (10/1000 µs), 25.7–28.4 V breakdown voltage, and 40.0 A peak pulse current. It operates from –65 °C to +185 °C and is AEC-Q101 qualified for engine control units and powertrain electronics.
For engineers reviewing the 1.5KA27A5800HE3/54 datasheet, 1.5KA27A5800HE3/54 pinout, 1.5KA27A5800HE3/54 application, or 1.5KA27A5800HE3/54 equivalent, key selection criteria include clamping voltage (37.5 V at IPPM), low incremental surge resistance, RoHS-compliant matte tin-plated leads, and JESD201 Class 2 whisker resistance - all critical for high-reliability automotive transients protection.
Technical Context
This TVS diode uses patented PAR® construction for stable clamping under repetitive surge stress and features a molded epoxy body meeting UL 94 V-0. Its unidirectional polarity enables precise reverse-biased overvoltage clamping on DC power rails and signal lines.
Designed for automotive environments, it delivers high-temperature stability up to TJ = 185 °C and supports 8.3 ms half-sine surge events (IFSM = 200 A) while maintaining <1.0 µA leakage at 23.1 V stand-off voltage - essential for low-power sensor interfaces and always-on vehicle networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 1500 W - sustains automotive load-dump and ISO 7637-2 pulse 5a without degradation |
| Breakdown Voltage (VBR) | 25.7–28.4 V - ensures reliable triggering above nominal 24 V rail with margin for ripple and tolerance |
| Clamping Voltage (VC) | 37.5 V at 40.0 A - limits downstream IC voltage stress during transients to safe levels |
| Stand-off Voltage (VWM) | 23.1 V - blocks normal operating voltage while allowing fast response to overvoltage |
| Junction Temperature Range | –65 °C to +185 °C - validated for under-hood placement in modern ICE and EV powertrain modules |
| Surge Current (IFSM) | 200 A (8.3 ms half-sine) - handles high-energy inductive switching events in solenoid and relay drivers |
| Leakage Current (ID) | ≤1.0 µA at 23.1 V, TJ = 150 °C - preserves battery drain budget in always-on vehicle subsystems |
Pinout & Package
Package: Case Style 1.5KA - axial-leaded, molded epoxy body (UL 94 V-0), 0.375" (9.5 mm) lead length, matte tin-plated leads compliant with J-STD-002 and JESD22-B102. Cathode denoted by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection in unidirectional clamping configuration | Connected to ground or low-impedance return path to complete clamping loop during overvoltage |
| Cathode | High-side connection to protected line (e.g., 24 V supply or CAN-H) | Color-banded end; reverse-biased during normal operation; conducts only during transient overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR® construction | Enables consistent clamping performance across temperature and lifetime, reducing parameter drift in harsh automotive cycles |
| AEC-Q101 qualification (HE3 suffix) | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock per JESD22 standards |
| 1500 W peak pulse rating (10/1000 µs) | Meets ISO 7637-2 Pulse 5a requirements for 24 V systems without external derating |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth in long-life automotive applications, eliminating latent field failures |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes voltage overshoot during clamping, protecting sensitive gate drivers and microcontrollers |
Applications
| Engine Control Unit (ECU) Power Rail Protection | Automotive CAN Transceiver Protection |
|---|---|
Use Scenario: Protecting 24 V supply input of diesel/gasoline ECU against load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND, clamping surges within 1 ns to limit voltage seen by PMIC and MCU. Use Value: 37.5 V clamping ensures downstream 40 V-rated regulators remain within absolute maximum ratings during 100 V/100 ms load dump events. | Use Scenario: Safeguarding high-speed CAN-H/CAN-L differential pair against ESD and coupled transients in body control modules. IC Role / Device Role / Timing Role: Discrete TVS mounted on each CAN line (with common-mode choke), triggered by >25 V common-mode spikes. Use Value: 23.1 V stand-off avoids false triggering during CAN recessive state (2.5–3.5 V differential), while 37.5 V clamping prevents transceiver latch-up. |
| Electric Power Steering (EPS) Motor Driver Protection | Automotive Battery Management System (BMS) Voltage Monitoring |
Use Scenario: Shielding H-bridge gate drivers and current sense amplifiers from inductive kickback during EPS motor commutation. IC Role / Device Role / Timing Role: TVS placed across motor supply rail (VMOT) and ground, absorbing 200 A IFSM-level surges from MOSFET turn-off. Use Value: 200 A surge rating and 185 °C junction rating allow direct placement near motor driver ICs without thermal derating penalties. | Use Scenario: Protecting precision voltage dividers and ADC inputs monitoring 12 V/24 V battery voltage in BMS front-end circuits. IC Role / Device Role / Timing Role: Low-leakage (≤1.0 µA) TVS connected across sensing node to clamp ESD and jump-start transients without distorting measurement accuracy. Use Value: Sub-µA leakage at 23.1 V ensures <0.1% error contribution to 12-bit battery voltage readings over full temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24AHE3/52 | Lower PPPM (600 W), smaller SMB package, 24 V nominal VBR (21.6–26.4 V), 38.9 V VC | Rated for lower-energy transients; suited for infotainment or lighting modules, not primary power rail protection | Select when space-constrained PCB layout and moderate surge immunity suffice |
| 1.5KE27A | Same VBR/VC specs but TO-204AA (DO-201AE) package, non-automotive grade, no AEC-Q101 or HE3 whisker compliance | Lacks automotive qualification and high-temp reliability; limited to industrial/commercial use below 150 °C | Select only for cost-sensitive non-automotive designs where qualification is not required |
Compared with SMBJ24AHE3/52 and 1.5KE27A, the 1.5KA27A5800HE3/54 provides higher pulse power headroom, guaranteed AEC-Q101 reliability, and superior thermal robustness - making it the sole choice for safety-critical 24 V power rail protection in engine bay locations.
Availability
1.5KA27A5800HE3/54 is available at Aetrix Electronics and suitable for automotive powertrain control, battery management systems, and high-reliability industrial power supplies requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for 1.5KA27A5800HE3/54 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 automotive, industrial, and computing markets.
The 1.5KA series was engineered specifically for AEC-Q101-compliant transient suppression in 24 V automotive systems - emphasizing high-temperature stability, low clamping ratio, and long-term reliability under cyclic thermal and electrical stress.
FAQ
What is the clamping voltage of the 1.5KA27A5800HE3/54 at its rated peak pulse current?
The 1.5KA27A5800HE3/54 has a maximum clamping voltage (VC) of 37.5 V when subjected to its rated peak pulse current (IPPM) of 40.0 A using the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures predictable overvoltage limiting for downstream 40 V-rated components in 24 V automotive systems. The 1.5KA27A5800HE3/54 maintains this clamping performance across its full operating temperature range.
Is the 1.5KA27A5800HE3/54 qualified for automotive applications?
Yes, the 1.5KA27A5800HE3/54 is AEC-Q101 qualified and designated as automotive grade per its HE3 suffix. It meets rigorous stress tests including temperature cycling, high-temperature operating life, and mechanical shock, and is built with JESD201 Class 2 whisker-resistant matte tin plating. The 1.5KA27A5800HE3/54 is intended for under-hood and powertrain applications where reliability at up to 185 °C junction temperature is mandatory.
What does the "HE3/54" suffix mean in 1.5KA27A5800HE3/54?
The "HE3" suffix indicates RoHS-compliant, high-reliability automotive grade construction with JESD201 Class 2 whisker resistance and AEC-Q101 qualification. The "54" denotes the preferred package code - 13-inch paper tape and reel with a base quantity of 1400 units. This packaging format ensures automated SMT-compatible handling and traceability for high-volume automotive manufacturing. The full part number 1.5KA27A5800HE3/54 uniquely identifies this qualified variant.
How does the 1.5KA27A5800HE3/54 differ from the standard 1.5KA27A?
The 1.5KA27A5800HE3/54 is the automotive-grade version of the 1.5KA27A, distinguished by the HE3 suffix which certifies AEC-Q101 qualification, JESD201 Class 2 whisker resistance, and enhanced process controls for high-reliability operation. While both share identical electrical parameters (VBR, VC, PPPM), only the 1.5KA27A5800HE3/54 is approved for safety-critical automotive use. The 1.5KA27A5800HE3/54 also ships in standardized 1400-unit tape-and-reel packaging (code 54).
Can the 1.5KA27A5800HE3/54 be used in 12 V automotive systems?
The 1.5KA27A5800HE3/54 is optimized for 24 V systems due to its 23.1 V stand-off voltage and 25.7–28.4 V breakdown range, which provide adequate margin above nominal 24 V rails but may trigger prematurely on 12 V lines during normal operation. For 12 V applications, Vishay recommends lower-voltage variants such as 1.5KA12A or 1.5KA15A. Using the 1.5KA27A5800HE3/54 on a 12 V rail risks excessive leakage and unintended clamping, compromising system functionality.
1.5KA27A5800HE3/54 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):
- 23.1V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- Current - Peak Pulse (10/1000µs):
- 40A
- 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
1.5KA27A5800HE3/54 FAQ
1.How can I place an order for 1.5KA27A5800HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KA27A5800HE3/54 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 1.5KA27A5800HE3/54 reliable?
The price and inventory of 1.5KA27A5800HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KA27A5800HE3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KA27A5800HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KA27A5800HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KA27A5800HE3/54?
1.5KA27A5800HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KA27A5800HE3/54 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 1.5KA27A5800HE3/54?
For technical support, including 1.5KA27A5800HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KA27A5800HE3/54 requirements.
6.How does Aetrix verify that 1.5KA27A5800HE3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KA27A5800HE3/54 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 1.5KA27A5800HE3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KA27A5800HE3/54?
All 1.5KA27A5800HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KA27A5800HE3/54, 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 1.5KA27A5800HE3/54 part is unused and in its original packaging.
Return procedure for 1.5KA27A5800HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KA27A5800HE3/54 Tags
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