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Vishay General Semiconductor - Diodes Division 1.5KE170CAHE3_B/C
- Part No.:
- 1.5KE170CAHE3_B/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE170CAHE3_B/C.pdf
- Description:
- 1.5KW,170V 5%,BIDIR,AXIAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:9,769
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Product details
Overview
1.5KE170CAHE3_B/C from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in power and signal lines. It features a 170 V breakdown voltage (VBR = 162–179 V), 1500 W peak pulse power (10/1000 µs), clamping voltage of 234 V at 6.4 A, 1.0 µA max reverse leakage at 145 V stand-off voltage, and operates across –55 °C to +175 °C junction temperature.
For engineers reviewing the 1.5KE170CAHE3_B/C datasheet, 1.5KE170CAHE3_B/C pinout, 1.5KE170CAHE3_B/C application, or 1.5KE170CAHE3_B/C equivalent, this device serves as a robust, AEC-Q101-qualified transient suppressor for automotive power rail and sensor interface protection where fast clamping (<1 ns), low incremental surge resistance, and repeatable 1500 W surge handling are required.
Technical Context
This bidirectional TVS diode uses a glass-passivated silicon junction to achieve sub-nanosecond response time and stable clamping under repetitive 10/1000 µs transients. Its symmetrical I-V characteristics enable identical forward and reverse conduction, supporting AC-coupled or floating-line protection without polarity concerns.
The device is rated for 1500 W peak pulse power with 0.01 % duty cycle, derated linearly above 25 °C ambient per Fig. 2, and exhibits a temperature coefficient of VBR of +0.108 %/°C - critical for thermal stability in under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 162 V / 179 V at 1.0 mA test current - defines precise clamping onset threshold for overvoltage detection |
| VWM | 145 V - maximum continuous working voltage before leakage exceeds 1.0 µA, ensuring no false triggering in nominal 12 V/24 V systems |
| VC @ IPPM | 234 V at 6.4 A - actual clamped voltage during full 1500 W surge, limiting downstream stress to safe levels |
| PPPM | 1500 W (10/1000 µs waveform) - enables protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges |
| TJ range | –55 °C to +175 °C - supports under-hood automotive deployment without derating loss |
| Package | DO-201AD (Case Style 1.5KE) - industry-standard axial leaded package with 0.375" lead length, UL 94 V-0 compliant epoxy |
Pinout & Package
1.5KE170CAHE3_B/C is housed in a DO-201AD (Case Style 1.5KE) axial-leaded package with matte tin-plated leads. As a bidirectional device, it has no polarity marking - both terminals are electrically symmetric and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals conduct identically in either direction during overvoltage events; no cathode band or polarity identification required |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure |
| AEC-Q101 qualified | Validated for automotive-grade stress testing including HTOL, TC, UHAST, and ESD - suitable for ASIL-B system interfaces |
| 1500 W peak pulse rating | Withstands repeated 10/1000 µs surges up to 6.4 A without degradation, meeting ISO 16750-2 load dump immunity requirements |
| Sub-nanosecond response | Clamps transients within 1 ns - faster than MOVs or GDTs - preserving integrity of high-speed analog and digital signals |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker resistance and JEDEC J-STD-020 reflow profile compatibility for automated assembly |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting 24 V CAN bus power inputs against load dump and jump-start surges in commercial vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between VBAT and ground, absorbing energy before it reaches DC-DC converters and CAN transceivers. Use Value: Limits clamped voltage to 234 V during 1500 W transients, preventing damage to 36 V-rated input stages while maintaining AEC-Q101 qualification. | Use Scenario: Safeguarding 4–20 mA current loop transmitters in factory automation against induced lightning surges on field wiring. IC Role / Device Role / Timing Role: Primary surge shunt across loop terminals, operating in parallel with precision current-sense circuitry. Use Value: Sub-ns response ensures no overshoot passes through to op-amp front-ends; 145 V VWM allows full 24 V loop compliance with margin. |
| Telecom Line Card Protection | Consumer Power Adapter Input |
Use Scenario: Front-end protection for PoE-powered Ethernet switches exposed to induced surges on twisted-pair cabling. IC Role / Device Role / Timing Role: Bidirectional TVS placed across each pair (tip/ring) to clamp common-mode transients before magnetics and PHY ICs. Use Value: Symmetrical clamping maintains differential integrity; 175 °C TJ rating supports operation in sealed, thermally constrained chassis. | Use Scenario: Secondary-side overvoltage suppression in universal-input AC/DC adapters for smart home devices. IC Role / Device Role / Timing Role: Standoff protection on DC output rails (e.g., 12 V/19 V), triggered only during fault conditions like regulator failure. Use Value: 1.0 µA leakage at 145 V ensures no standby power penalty; DO-201AD package enables manual or auto-insertion in cost-sensitive designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ170CA | Lower PPPM (600 W), smaller SMB package (surface-mount), same VBR range and bidirectional configuration | Designed for PCB space-constrained, high-density layouts; lacks axial lead mechanical robustness for high-vibration environments | Select when board area is limited and surge energy is ≤600 W; not drop-in due to different footprint and thermal path |
| 1.5KE170AHE3_B/C | Unidirectional version - includes cathode band marking, 3.5 V forward voltage, and 200 A IFSM; otherwise identical VBR, VC, and PPPM | Required only where DC-biased circuits demand asymmetric clamping (e.g., single-supply data lines with ground reference) | Use only if polarity-aware protection is needed; 1.5KE170CAHE3_B/C is preferred for AC, floating, or dual-rail systems |
Compared with SMBJ170CA and 1.5KE170AHE3_B/C, the 1.5KE170CAHE3_B/C uniquely combines 1500 W capability, bidirectional symmetry, axial-leaded ruggedness, and AEC-Q101 qualification - making it the optimal choice for high-reliability automotive and industrial power line protection where mechanical durability and full-cycle surge immunity are mandatory.
Availability
1.5KE170CAHE3_B/C is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom line card prototyping requiring stable component supply, long-lifecycle support, and traceable RoHS-compliant sourcing.
Supply support for 1.5KE170CAHE3_B/C 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, automotive qualification, and high-power handling.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where 1500 W surge immunity, AEC-Q101 compliance, and stable parametric performance across temperature are non-negotiable.
FAQ
What is the breakdown voltage tolerance for 1.5KE170CAHE3_B/C?
The 1.5KE170CAHE3_B/C has a specified breakdown voltage range of 162 V to 179 V at 1.0 mA test current, corresponding to ±5.3 % tolerance around the nominal 170 V rating. This tight VBR window ensures predictable clamping behavior in safety-critical protection circuits and aligns with the JEDEC 1N6301A designation referenced in Vishay's datasheet revision 09-Aug-2022.
Is 1.5KE170CAHE3_B/C suitable for automotive under-hood applications?
Yes, 1.5KE170CAHE3_B/C is AEC-Q101 qualified and rated for junction temperatures from –55 °C to +175 °C, making it suitable for under-hood automotive use. Its glass-passivated junction, 1500 W surge rating, and thermal resistance (RθJL = 15.4 °C/W) support reliable operation in high-temperature, high-vibration environments such as engine control modules and battery management systems.
How does the clamping voltage of 1.5KE170CAHE3_B/C compare to its breakdown voltage?
The 1.5KE170CAHE3_B/C clamps at 234 V when subjected to its maximum peak pulse current of 6.4 A (10/1000 µs waveform), which is 37 % above its minimum breakdown voltage of 162 V. This incremental clamping voltage (ΔVC = 72 V) reflects low dynamic impedance and effective energy absorption - critical for limiting stress on downstream 200 V-rated components.
What packaging format is used for 1.5KE170CAHE3_B/C?
The 1.5KE170CAHE3_B/C is supplied in 13" diameter paper tape and reel format with a base quantity of 1400 units per reel, using package code "C". The device uses the DO-201AD case style (1.5KE) with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
Does 1.5KE170CAHE3_B/C have polarity markings?
No, 1.5KE170CAHE3_B/C is a bidirectional TVS diode and carries no polarity markings - both terminals are functionally identical. Unlike unidirectional variants (e.g., 1.5KE170AHE3_B/C), it lacks a cathode band and may be installed in either orientation, simplifying layout and assembly for AC-coupled or floating protection schemes.
1.5KE170CAHE3_B/C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 145V
- Voltage - Breakdown (Min):
- 162V
- Voltage - Clamping (Max) @ Ipp:
- 234V
- Current - Peak Pulse (10/1000µs):
- 6.7A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE170CAHE3_B/C FAQ
1.How can I place an order for 1.5KE170CAHE3_B/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE170CAHE3_B/C 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 1.5KE170CAHE3_B/C reliable?
The price and inventory of 1.5KE170CAHE3_B/C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE170CAHE3_B/C is usually 5 days.
3.What payment methods are accepted for 1.5KE170CAHE3_B/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE170CAHE3_B/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE170CAHE3_B/C?
1.5KE170CAHE3_B/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE170CAHE3_B/C 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 1.5KE170CAHE3_B/C?
For technical support, including 1.5KE170CAHE3_B/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE170CAHE3_B/C requirements.
6.How does Aetrix verify that 1.5KE170CAHE3_B/C is sourced from the original manufacturer or authorized distributors?
All 1.5KE170CAHE3_B/C 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 1.5KE170CAHE3_B/C meets industry standards.
7.What is the process for return or replacement of 1.5KE170CAHE3_B/C?
All 1.5KE170CAHE3_B/C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE170CAHE3_B/C, 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 1.5KE170CAHE3_B/C part is unused and in its original packaging.
Return procedure for 1.5KE170CAHE3_B/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE170CAHE3_B/C Tags
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