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Vishay General Semiconductor - Diodes Division ICTE8HE3/51
- Part No.:
- ICTE8HE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
ICTE8HE3/51.pdf
- Description:
- TVS DIODE 8VWM 11.5VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:4,173
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Product details
Overview
ICTE8HE3/51 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode in the 1.5KE package, rated for 8.0 V stand-off voltage (VWM), 9.4 V minimum breakdown voltage (VBR), and 1500 W peak pulse power with 10/1000 μs waveform. It features AEC-Q101 qualification, 24.8 V clamping voltage at 10 A IPP, and operates from –55 °C to +175 °C - deployed for automotive sensor line protection against inductive switching transients.
For engineers reviewing the ICTE8HE3/51 datasheet, ICTE8HE3/51 pinout, ICTE8HE3/51 application, or ICTE8HE3/51 equivalent, key selection criteria include bi-directional clamping capability, JEDEC-registered 1.5KE through-hole package compatibility, AEC-Q101 qualification status, and verified 100 A peak pulse current rating under standardized surge conditions.
Technical Context
The ICTE8HE3/51 implements a glass-passivated silicon junction optimized for fast transient response (<1 ns) and low incremental surge resistance, enabling effective suppression of ESD and lightning-induced surges on bidirectional signal paths. Its symmetrical I–V characteristics ensure identical clamping behavior in both polarities, with a clamping factor of 1.33 at full rated power.
Designed for high-reliability automotive environments, the ICTE8HE3/51 meets JESD201 Class 2 whisker resistance and supports soldering up to 275 °C for 10 s. It delivers 6.5 W steady-state power dissipation on an infinite heatsink at TL = 75 °C and withstands 200 A uni-directional forward surge (8.3 ms half-sine).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - maximum continuous reverse working voltage before clamping initiates |
| VBR (min) | 9.4 V at 1.0 mA - guaranteed breakdown threshold for bi-directional conduction |
| VC @ 10 A | 24.8 V - clamping voltage during 10 A transient, defining worst-case voltage seen by protected IC |
| PPPM | 1500 W - peak surge power handling with 10/1000 μs waveform, critical for ISO 7637-2 Pulse 5a compliance |
| IPP @ VC | 100 A - peak pulse current corresponding to 24.8 V clamping, validated per JEDEC test method |
| TJ max. | +175 °C - maximum junction temperature enabling under-hood automotive deployment |
| AEC-Q101 | Qualified - certified for automotive-grade reliability per stress testing requirements |
Pinout & Package
Package: 1.5KE molded epoxy case (JEDEC TO-201AA), axial-leaded, RoHS-compliant, matte tin-plated leads solderable per J-STD-002. Bi-directional symmetry means no polarity marking; both terminals are electrically identical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Bi-directional terminal pair - conducts surge current equally in either direction when V > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR over lifetime and improved moisture resistance vs. epoxy-only passivation |
| 1500 W 10/1000 μs pulse rating | Supports robust protection against load dump and inductive kick events in 12 V automotive systems |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and mechanical shock per standard |
| Clamping factor = 1.33 | Ensures predictable voltage overshoot margin between VBR and VC under full-power surge conditions |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth in high-humidity, high-temperature automotive environments |
Applications
| Automotive Sensor Interface Protection | Industrial CAN Bus Line Protection |
|---|---|
Use Scenario: Protecting ABS wheel speed sensor outputs from inductive switching transients generated by nearby solenoid drivers. IC Role / Device Role / Timing Role: Bi-directional TVS placed across differential signal pair (e.g., VR sensor output) to clamp ±25 V surges without polarity bias. Use Value: Limits transient voltage to ≤24.8 V at 10 A, preventing damage to downstream signal conditioning amplifiers operating at 5 V supply. |
Use Scenario: Safeguarding CANH/CANL lines in vehicle body control modules exposed to battery disconnect spikes and ESD. IC Role / Device Role / Timing Role: Bidirectional clamping device installed between CAN bus lines and ground, leveraging symmetrical VBR to suppress common-mode and differential surges. Use Value: Maintains CAN signal integrity by clamping transients within ISO 11898-2 limits while surviving repeated 100 A pulses per ISO 7637-3. |
| Telecom Power Supply Input Protection | Consumer Appliance Motor Drive Feedback Protection |
Use Scenario: Guarding AC/DC adapter input stage against lightning-induced surges on telecom central office power feeds. IC Role / Device Role / Timing Role: Primary-level TVS connected line-to-line and line-to-ground to absorb multi-kW transients before they reach rectifier bridge. Use Value: Withstands 1500 W peak pulse energy and 200 A forward surge, ensuring no failure during simulated lightning strikes (IEC 61000-4-5 Level 4). |
Use Scenario: Shielding hall-effect rotor position feedback signals in BLDC motor drives from commutation noise and back-EMF coupling. IC Role / Device Role / Timing Role: Low-capacitance bi-directional TVS mounted directly at motor controller connector to suppress sub-100 ns edge-induced transients. Use Value: Fast <1 ns response time and 2.0 μA leakage at 8.0 V prevent signal distortion while blocking >20 V spikes that could saturate comparator inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A-E3/52 | Uni-directional; 8.0 V VWM; 1000 W PPPM; DO-214AA package; lower surge rating | Requires external polarity management; unsuitable for true bi-directional signal lines without added components | Select only if circuit topology enforces unidirectional bias and space constraints favor SMD mounting |
| 1N6382 | Same electrical specs (VWM=8.0 V, VBR=9.4 V, VC=11.4 V @1A /24.8 V @10A); identical 1.5KE package; non-AEC-Q101 | Lacks automotive qualification; not recommended for production vehicles or safety-critical modules | Acceptable for industrial or consumer prototypes where AEC-Q101 is not mandated |
Compared with ICTE8HE3/51, SMBJ8.0A-E3/52 offers surface-mount convenience but sacrifices bi-directionality and surge capacity, while 1N6382 matches performance and form factor but omits AEC-Q101 validation - making ICTE8HE3/51 the sole choice for qualified automotive signal line protection.
Availability
ICTE8HE3/51 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, and telecom power input stages requiring stable component supply with full AEC-Q101 traceability and long-term lifecycle support.
Supply support for ICTE8HE3/51 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 diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and automotive-grade qualification.
The ICTE series belongs to Vishay's TransZorb® TVS platform, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where surge immunity and long-term stability are mandatory.
FAQ
What is the clamping voltage of ICTE8HE3/51 at 10 A peak pulse current?
The ICTE8HE3/51 has a maximum clamping voltage (VC) of 24.8 V when subjected to a 10 A peak pulse current with a 10/1000 μs waveform. This value is measured per JEDEC-standard test conditions and defines the upper voltage limit imposed on protected circuitry during surge events. The clamping behavior remains consistent in both directions due to its bi-directional design.
Is ICTE8HE3/51 suitable for automotive applications?
Yes, ICTE8HE3/51 is AEC-Q101 qualified and explicitly designed for automotive use, including under-hood environments. Its –55 °C to +175 °C operating temperature range, JESD201 Class 2 whisker resistance, and 1500 W surge rating meet stringent requirements for engine control units, body electronics, and ADAS sensor interfaces where reliability under thermal and electrical stress is critical.
Does ICTE8HE3/51 have polarity markings?
No, ICTE8HE3/51 is a bi-directional TVS diode and carries no polarity marking on its 1.5KE package. Both leads are functionally identical, allowing installation without orientation concern - a key advantage for protecting differential or AC-coupled signal lines such as those found in CAN, LIN, or analog sensor interfaces.
What is the difference between ICTE8HE3/51 and ICTE8-E3/54?
ICTE8HE3/51 is AEC-Q101 qualified and meets JESD201 Class 2 whisker resistance, whereas ICTE8-E3/54 is commercial-grade (Class 1A) and not automotive-qualified. Both share identical electrical specs (VWM = 8.0 V, VBR = 9.4 V) and 1.5KE packaging, but ICTE8HE3/51 is designated for safety-critical automotive deployments where long-term reliability under thermal cycling and vibration is mandatory.
What package type does ICTE8HE3/51 use?
ICTE8HE3/51 uses the JEDEC-standard 1.5KE axial-leaded package (TO-201AA), featuring a molded epoxy body with UL 94 V-0 flammability rating and matte tin-plated leads compliant with J-STD-002 solderability requirements. Its dimensions and lead configuration are fully compatible with legacy through-hole PCB footprints used for 1.5 kW TVS diodes.
ICTE8HE3/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8V
- Voltage - Breakdown (Min):
- 9.4V
- Voltage - Clamping (Max) @ Ipp:
- 11.5V
- Current - Peak Pulse (10/1000µs):
- 100A
- 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
ICTE8HE3/51 FAQ
1.How can I place an order for ICTE8HE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for ICTE8HE3/51 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 ICTE8HE3/51 reliable?
The price and inventory of ICTE8HE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICTE8HE3/51 is usually 5 days.
3.What payment methods are accepted for ICTE8HE3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICTE8HE3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICTE8HE3/51?
ICTE8HE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICTE8HE3/51 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 ICTE8HE3/51?
For technical support, including ICTE8HE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICTE8HE3/51 requirements.
6.How does Aetrix verify that ICTE8HE3/51 is sourced from the original manufacturer or authorized distributors?
All ICTE8HE3/51 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 ICTE8HE3/51 meets industry standards.
7.What is the process for return or replacement of ICTE8HE3/51?
All ICTE8HE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with ICTE8HE3/51, 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 ICTE8HE3/51 part is unused and in its original packaging.
Return procedure for ICTE8HE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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