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Vishay General Semiconductor - Diodes Division 1.5KE170CHE3/54
- Part No.:
- 1.5KE170CHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE170CHE3/54.pdf
- Description:
- TVS DIODE 138VWM 244VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:9,884
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Product details
Overview
1.5KE170CHE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary-side overvoltage protection in power rails and signal lines. It features a 170 V breakdown voltage (VBR = 162–179 V at 1 mA), 1500 W peak pulse power (10/1000 µs), clamping voltage of 234 V at 6.4 A, 145 V maximum standoff voltage (VWM), and operates across –55 °C to +175 °C junction temperature.
For engineers reviewing the 1.5KE170CHE3/54 datasheet, 1.5KE170CHE3/54 pinout, 1.5KE170CHE3/54 application, or 1.5KE170CHE3/54 equivalent, this device serves as a robust, AEC-Q101-qualified transient suppressor for automotive power supply inputs, industrial DC bus lines, and telecom interface protection where fast clamping (<1 ns), low incremental surge resistance, and high surge current tolerance (200 A IFSM) are critical.
Technical Context
This TVS diode uses a glass-passivated silicon junction optimized for bidirectional or unidirectional transient suppression. Its clamping behavior is defined by a 10/1000 µs waveform with 0.01% duty cycle, and it exhibits a temperature coefficient of VBR of +0.108 %/°C - enabling predictable voltage drift under thermal stress.
The device complies with JEDEC standards for surge testing and meets UL 497B recognition (QVGQ2, E136766). Its matte tin-plated leads satisfy J-STD-002 solderability and JESD 22-B102, while the molded epoxy case achieves UL 94 V-0 flammability rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 162 V / 179 V at 1 mA - defines precise voltage threshold for avalanche conduction onset |
| VWM | 145 V maximum - ensures reliable blocking during normal operation without leakage |
| VC @ IPPM | 234 V at 6.4 A - limits downstream voltage excursion during 10/1000 µs transients |
| PPPM | 1500 W - sustains high-energy surges common in automotive load-dump or inductive switching events |
| IFSM | 200 A (8.3 ms half-sine) - withstands repetitive surge currents without bond-wire failure |
| TJ max | +175 °C - supports under-hood automotive and high-temperature industrial environments |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package with 0.375" lead length for through-hole mounting and thermal relief |
Pinout & Package
1.5KE170CHE3/54 is housed in a DO-201AD (Case Style 1.5KE) axial-leaded package. The cathode is marked by a color band on the body; polarity must be observed in unidirectional configurations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side of protected circuit; enables low VF (5.0 V @ 100 A) during surge |
| Cathode | Current exit point during reverse-biased clamping | Connected to higher-potential rail; initiates avalanche breakdown when VRM exceeds VWM |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under humidity and thermal cycling |
| 1500 W peak pulse power | Handles ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 Level 4 surges without degradation |
| AEC-Q101 qualified | Validated for automotive powertrain and chassis applications per stress test requirements |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ESD or lightning-induced spikes) |
| UL 497B recognized | Meets safety certification for telecom and industrial signal line protectors (File E136766) |
Applications
| Automotive Power Input Protection | Industrial DC Bus Clamping |
|---|---|
Use Scenario: Protecting engine control unit (ECU) 12 V/24 V input against load-dump transients up to 120 V for 400 ms. IC Role / Device Role / Timing Role: Primary clamping element placed directly at connector entry point before upstream filtering. Use Value: Limits voltage to ≤234 V during 1500 W surges, preventing damage to LDOs, microcontrollers, and CAN transceivers. | Use Scenario: Safeguarding PLC analog I/O modules connected to 48 V DC field buses exposed to inductive kickback. IC Role / Device Role / Timing Role: Standoff protector parallel to bus rail, activated within <1 ns upon overvoltage detection. Use Value: Maintains system uptime by absorbing 200 A surge currents without failure, per IEC 61000-4-4 compliance. |
| Telecom Line Interface Protection | Consumer Power Adapter Surge Suppression |
Use Scenario: Shielding Ethernet PHY interfaces and PoE injectors from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-stage TVS on RJ45 jack side, coordinated with GDT and MOV secondary stages. Use Value: Clamps induced transients to 234 V before they reach sensitive PHY ICs, meeting GR-1089-CORE Level 3 requirements. | Use Scenario: Adding robustness to AC-DC adapter secondary-side outputs against mains-borne surges and capacitor discharge events. IC Role / Device Role / Timing Role: Unidirectional clamp on +12 V or +19 V output rail, downstream of rectifier but upstream of bulk capacitor. Use Value: Prevents catastrophic failure of downstream DC-DC converters during 10/1000 µs surges exceeding 1 kV. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ170A | DO-214AA package; lower PPPM (600 W); same VBR range (162–179 V) | Surface-mount only; unsuitable for high-power through-hole designs requiring >1 kW dissipation | Select when board space is constrained and surge energy is limited to IEC 61000-4-5 Level 2 |
| 1.5KE170A | Same package and electrical specs, but commercial-grade (non-AEC-Q101 qualified) | Lacks automotive qualification; not approved for under-hood or safety-critical vehicle systems | Choose for cost-sensitive industrial or consumer applications where AEC-Q101 is not mandated |
Compared with SMBJ170A and 1.5KE170A, the 1.5KE170CHE3/54 uniquely combines AEC-Q101 qualification, 1500 W pulse capability, and DO-201AD mechanical robustness - making it the preferred choice for automotive front-end protection where reliability under thermal and mechanical stress is non-negotiable.
Availability
1.5KE170CHE3/54 is available at Aetrix Electronics and suitable for automotive power input protection, industrial DC bus clamping, and telecom line interface protection requiring stable component supply across extended production lifecycles.
Supply support for 1.5KE170CHE3/54 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 diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where sustained surge immunity and long-term stability are mandatory.
FAQ
What is the breakdown voltage tolerance for 1.5KE170CHE3/54?
The 1.5KE170CHE3/54 has a specified breakdown voltage range of 162 V to 179 V at 1 mA test current, corresponding to ±5.3% tolerance around the nominal 170 V rating. This tight VBR window ensures consistent clamping onset across production lots and supports predictable system-level overvoltage margining in designs using the 1.5KE170CHE3/54.
Is 1.5KE170CHE3/54 suitable for automotive applications?
Yes, the 1.5KE170CHE3/54 is AEC-Q101 qualified (per documentation for 1.5KE6.8AHE3_B to 1.5KE220AHE3_B variants), making it suitable for automotive powertrain, body electronics, and infotainment systems. Its –55 °C to +175 °C operating range, 200 A IFSM rating, and UL 497B recognition confirm its readiness for under-hood and chassis-mounted use cases involving the 1.5KE170CHE3/54.
What is the clamping voltage of 1.5KE170CHE3/54 at rated peak pulse current?
The 1.5KE170CHE3/54 clamps to a maximum of 234 V at its rated peak pulse current of 6.4 A (10/1000 µs waveform). This value is measured per standard test conditions and defines the upper voltage limit imposed on protected circuitry during worst-case surge events - a critical parameter for validating safe operation of downstream components when using the 1.5KE170CHE3/54.
Does 1.5KE170CHE3/54 have a bidirectional variant?
No, 1.5KE170CHE3/54 is unidirectional only. Bidirectional versions in the 1.5KE family are limited to part numbers up to 1.5KE220CA; 1.5KE170C does not exist. For bidirectional protection at ~170 V standoff, engineers must select alternate families such as SMAJ170CA or consult Vishay's CA-suffix offerings - the 1.5KE170CHE3/54 itself functions exclusively in unidirectional mode with cathode-marked polarity.
What packaging format is used for 1.5KE170CHE3/54?
The 1.5KE170CHE3/54 is supplied in 13" diameter paper tape and reel packaging with a base quantity of 1400 units per reel (package code "54"). This format supports automated SMT placement when used with axial-to-SMT adapters, though the device is primarily intended for through-hole assembly in high-reliability power applications using the 1.5KE170CHE3/54.
1.5KE170CHE3/54 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 138V
- Voltage - Breakdown (Min):
- 153V
- Voltage - Clamping (Max) @ Ipp:
- 244V
- Current - Peak Pulse (10/1000µs):
- 6.1A
- 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
1.5KE170CHE3/54 FAQ
1.How can I place an order for 1.5KE170CHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE170CHE3/54 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 1.5KE170CHE3/54 reliable?
The price and inventory of 1.5KE170CHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE170CHE3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE170CHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE170CHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE170CHE3/54?
1.5KE170CHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE170CHE3/54 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 1.5KE170CHE3/54?
For technical support, including 1.5KE170CHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE170CHE3/54 requirements.
6.How does Aetrix verify that 1.5KE170CHE3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE170CHE3/54 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 1.5KE170CHE3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE170CHE3/54?
All 1.5KE170CHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE170CHE3/54, 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 1.5KE170CHE3/54 part is unused and in its original packaging.
Return procedure for 1.5KE170CHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE170CHE3/54 Tags
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