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Vishay General Semiconductor - Diodes Division 1.5KE170CA-E3/54
- Part No.:
- 1.5KE170CA-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE170CA-E3/54.pdf
- Description:
- TVS DIODE 145VWM 234VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:1,374
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Product details
Overview
1.5KE170CA-E3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in DC power rails and signal lines. It features a 170 V breakdown voltage (VBR min/max: 162–179 V), 1500 W peak pulse power (10/1000 µs), clamping voltage of 234 V at 6.4 A, and operates across –55 °C to +175 °C. It protects MOSFETs and ICs against lightning-induced transients in industrial sensor interfaces.
For engineers reviewing the 1.5KE170CA-E3/54 datasheet, 1.5KE170CA-E3/54 pinout, 1.5KE170CA-E3/54 application, or 1.5KE170CA-E3/54 equivalent, this part delivers verified bidirectional clamping performance with UL 94 V-0 molded epoxy packaging, RoHS-compliant matte tin leads, and JESD 201 Class 1A whisker resistance - critical for automotive-grade ESD resilience and long-term reliability in harsh environments.
Technical Context
This TVS diode uses a glass passivated silicon junction optimized for sub-nanosecond response (<1 ns) and low incremental surge resistance. Its bidirectional architecture enables symmetrical clamping on AC-coupled or floating lines without polarity constraints, supporting both differential and common-mode transient suppression.
Rated for 1500 W peak pulse power under 10/1000 µs waveform and derated above 25 °C per JEDEC standards, it maintains stable clamping up to 175 °C junction temperature. The device exhibits 0.108 %/°C temperature coefficient of VBR, ensuring predictable voltage threshold drift across thermal operating ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 162 V / 179 V - ensures reliable triggering above normal 150 V DC rail while avoiding false trips during line tolerance variations |
| VWM | 145 V - maximum continuous working voltage compatible with 125 V nominal systems with 15% margin |
| VC @ IPPM | 234 V - clamping voltage limits downstream component stress to safe levels during 6.4 A surge events |
| PPPM | 1500 W - handles high-energy lightning surges (IEC 61000-4-5 Level 4) on industrial power inputs |
| IPPM | 6.4 A - peak pulse current rating validated for 10/1000 µs waveform per Fig. 1 and Fig. 3 |
| TJ max | +175 °C - supports operation in engine bay or enclosed industrial enclosures without thermal derating penalties |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package with 0.375" lead length, UL 94 V-0 compliant epoxy body |
Pinout & Package
1.5KE170CA-E3/54 uses an axial-leaded DO-201AD (Case Style 1.5KE) package with no polarity marking - consistent with bidirectional construction. Leads are matte tin plated, solderable per J-STD-002 and JESD 22-B102, rated for 275 °C dip soldering (10 s max).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional terminal pair | Either lead serves as input/output; no cathode band - enables placement flexibility on PCBs and eliminates orientation errors |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable leakage performance (<1 µA at VWM) and long-term reliability under humidity and thermal cycling |
| 1500 W peak pulse power (10/1000 µs) | Meets IEC 61000-4-5 surge immunity requirements for industrial equipment without external heat sinking |
| Sub-nanosecond response time | Clamps transients before sensitive logic or analog circuitry sustains damage - critical for protecting high-speed ADCs and microcontrollers |
| UL 94 V-0 flammability rating | Molded epoxy body prevents flame propagation during catastrophic overvoltage events, satisfying safety certifications for end equipment |
| JESD 201 Class 1A whisker resistance | Prevents tin whisker growth in high-reliability applications such as automotive control modules and medical sensors |
Applications
| Industrial Sensor Interface Protection | Automotive Body Control Module (BCM) Power Rail |
|---|---|
Use Scenario: Protecting 24 V CAN/LIN bus sensor nodes from load dump and inductive switching spikes in factory automation systems. IC Role / Device Role / Timing Role: Bidirectional TVS placed across VCC and GND to clamp ±200 V transients before they reach isolated RS-485 transceivers and MCU power domains. Use Value: Limits clamped voltage to 234 V, keeping downstream 30 V-rated LDOs and level shifters within absolute maximum ratings during 10/1000 µs surges. |
Use Scenario: Safeguarding 12 V supply inputs in BCMs exposed to ISO 7637-2 Pulse 5a (load dump) events up to 60 V for 400 ms. IC Role / Device Role / Timing Role: Primary front-end TVS on main power entry, coordinated with slower fuses to absorb initial 1500 W energy burst before thermal cutoff. Use Value: Withstands 175 °C junction temperature and maintains clamping integrity after repeated surges - validated for AEC-Q101 qualification path. |
| Telecom DSL Line Card Surge Protection | Renewable Energy Inverter DC Link Monitoring |
Use Scenario: Shielding ADSL/VDSL line drivers and transformers from induced lightning surges on outdoor copper pairs. IC Role / Device Role / Timing Role: Bidirectional TVS mounted at line entry point, shunting common-mode transients between tip/ring and chassis ground. Use Value: Symmetrical 162–179 V VBR ensures balanced clamping on differential signaling paths without skew or offset introduction. |
Use Scenario: Protecting voltage sense circuits monitoring 400–800 V DC link in solar inverters during grid fault conditions. IC Role / Device Role / Timing Role: High-VBR TVS placed across precision resistor dividers to prevent overvoltage damage to 16-bit ADC inputs. Use Value: 145 V VWM allows safe operation at 125 V bias points while delivering 234 V clamping - preserving measurement accuracy during surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ170CA | Surface-mount SMB package (vs. axial DO-201AD); same 170 V VBR, 1500 W PPPM, but lower IPPM (6.2 A) and higher VC (274 V) | Designed for space-constrained PCB layouts; lacks axial lead mechanical robustness for high-vibration environments | Select when automated SMT assembly and board real estate are prioritized over field-serviceability and lead strength |
| 1.5KE170A-E3/54 | Unidirectional variant with cathode band marking; identical VBR, PPPM, and package but asymmetric clamping (only suppresses positive transients) | Applicable only where polarity is fixed and negative transients are absent or handled separately | Choose only if system topology guarantees unidirectional surge direction - otherwise 1.5KE170CA-E3/54 provides safer default coverage |
Compared with SMBJ170CA and 1.5KE170A-E3/54, the 1.5KE170CA-E3/54 uniquely combines axial-mount ruggedness, true bidirectional symmetry, and industry-standard 1.5KE footprint - making it the preferred choice for legacy designs, high-reliability replacements, and applications requiring mechanical stability alongside surge immunity.
Availability
1.5KE170CA-E3/54 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, telecom line cards, and renewable energy inverter monitoring requiring stable component supply across extended product lifecycles.
Supply support for 1.5KE170CA-E3/54 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 passive components for automotive, industrial, and computing markets.
The 1.5KE series was engineered specifically for high-power transient suppression in harsh environments - emphasizing robustness, repeatable clamping, and compliance with UL, AEC-Q101, and IEC surge standards.
FAQ
What is the breakdown voltage range for 1.5KE170CA-E3/54?
The 1.5KE170CA-E3/54 has a guaranteed breakdown voltage range of 162 V to 179 V at 1 mA test current (IT), per Vishay Document 88301. This VBR window ensures reliable activation above normal 145 V working voltage while maintaining margin against false triggering due to ripple or tolerance stack-up. The value is measured under standard JEDEC conditions and applies identically in both directions due to its bidirectional construction.
Is 1.5KE170CA-E3/54 RoHS compliant and lead-free?
Yes, the 1.5KE170CA-E3/54 carries the "E3" suffix, indicating full RoHS compliance per EU Directive 2011/65/EU and exemption 7a. Its matte tin-plated leads meet J-STD-002 solderability requirements and JESD 201 Class 1A whisker resistance testing. No lead content is present in the die, package, or terminations - confirmed in Vishay's material declaration DOC-99912.
Does 1.5KE170CA-E3/54 have AEC-Q101 qualification?
No, the 1.5KE170CA-E3/54 is a commercial-grade part. AEC-Q101 qualification applies only to variants with the "HE3" suffix (e.g., 1.5KE170CAHE3_B), as explicitly stated in Note (2) on page 3 of Document 88301. The "E3/54" ordering code denotes RoHS-compliant commercial packaging in 13" tape-and-reel format, not automotive qualification.
What is the clamping voltage of 1.5KE170CA-E3/54 at its rated peak pulse current?
At its rated peak pulse current of 6.4 A (IPPM), the 1.5KE170CA-E3/54 clamps to a maximum of 234 V, as specified in the Electrical Characteristics table (Document 88301, page 2). This VC value is measured under standardized 10/1000 µs waveform conditions and represents the upper limit of voltage seen by protected circuitry during worst-case surge events.
Can 1.5KE170CA-E3/54 be used in place of unidirectional 1.5KE170A-E3/54?
Yes, 1.5KE170CA-E3/54 can replace 1.5KE170A-E3/54 in most applications because it provides identical VBR, PPPM, and package dimensions - plus added bidirectional capability. However, the reverse is not true: substituting the unidirectional version risks failure during negative-going transients. Always verify system-level polarity requirements before interchange, especially in AC-coupled or floating signal paths.
1.5KE170CA-E3/54 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:
- 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):
- 6.4A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE170CA-E3/54 FAQ
1.How can I place an order for 1.5KE170CA-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE170CA-E3/54 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 1.5KE170CA-E3/54 reliable?
The price and inventory of 1.5KE170CA-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE170CA-E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE170CA-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE170CA-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE170CA-E3/54?
1.5KE170CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE170CA-E3/54 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 1.5KE170CA-E3/54?
For technical support, including 1.5KE170CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE170CA-E3/54 requirements.
6.How does Aetrix verify that 1.5KE170CA-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE170CA-E3/54 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 1.5KE170CA-E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE170CA-E3/54?
All 1.5KE170CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE170CA-E3/54, 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 1.5KE170CA-E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE170CA-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE170CA-E3/54 Tags
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