My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P4KE170CAHE3/54
- Part No.:
- P4KE170CAHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE170CAHE3/54.pdf
- Description:
- TVS DIODE 145VWM 234VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,499
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4KE170CAHE3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on signal or power lines. It features a 170 V breakdown voltage (VBR min/max = 162 V / 179 V), 145 V stand-off voltage (VWM), 400 W peak pulse power (10/1000 µs), and clamps to ≤234 V at 1.7 A peak pulse current - used in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the P4KE170CAHE3/54 datasheet, P4KE170CAHE3/54 pinout, P4KE170CAHE3/54 application, or P4KE170CAHE3/54 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, DO-41 mechanical compatibility, 175 °C max junction temperature, and 1.0 µA max reverse leakage at VWM.
Technical Context
This device operates as a silicon avalanche diode with glass-passivated junction, delivering symmetrical clamping in both polarities. Its bidirectional architecture eliminates polarity dependency in AC-coupled or floating lines, and its 10/1000 µs waveform response enables robust protection against inductive switching spikes and ESD-related transients.
Thermal design is supported by RθJL = 66 °C/W (junction-to-lead) and RθJA = 100 °C/W (junction-to-ambient, LLead = 10 mm). The device is rated for -55 °C to +175 °C operating junction temperature and meets JESD 201 Class 2 whisker resistance (HE3 suffix).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 162 V / 179 V at 1.0 mA test current - defines reliable avalanche initiation range under transient stress |
| VWM | 145 V - maximum continuous reverse working voltage before significant leakage begins |
| VC @ IPPM | ≤234 V at 1.7 A - clamped voltage during 400 W 10/1000 µs surge, limiting downstream IC stress |
| ID @ VWM | ≤1.0 µA - ultra-low leakage ensures minimal power loss in standby or high-impedance circuits |
| PPPM | 400 W - peak pulse power handling per single 10/1000 µs transient, duty cycle ≤0.01 % |
| TJ max | +175 °C - enables operation in under-hood automotive or high-temperature industrial environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; no polarity marking required for bidirectional operation. Body length: 4.1–5.2 mm, lead diameter: 0.71–0.86 mm, overall length ≥25.4 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | Accepts reverse surge current during negative excursions; symmetric with cathode |
| Cathode | Transient current entry (positive polarity) | Accepts reverse surge current during positive excursions; symmetric with anode |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable avalanche characteristics and long-term reliability under repeated surge stress |
| 400 W peak pulse power (10/1000 µs) | Supports protection of 12 V/24 V automotive and industrial bus lines against ISO 7637-2 Pulse 1/2a/3a |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial and transportation equipment |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time capability) |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and inductive kickback in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential or single-ended signal lines upstream of interface ICs. Use Value: Limits transient voltage to ≤234 V while maintaining <1.0 µA leakage at 145 V, preserving signal integrity and preventing latch-up in protected ICs. | Use Scenario: Shielding PLC digital input modules and analog acquisition channels from field-induced surges in factory automation systems. IC Role / Device Role / Timing Role: Primary front-end TVS on terminal blocks or connector pins, absorbing energy before it reaches isolation barriers or ADC front-ends. Use Value: Withstands 400 W pulses without degradation, enabling compliance with IEC 61000-4-5 Level 3 (2 kV/12 Ω) when properly routed and grounded. |
| Telecom Line Protection | Consumer Power Adapter Input |
Use Scenario: Safeguarding Ethernet PHYs and PoE injectors from lightning-induced surges on unshielded twisted-pair cabling. IC Role / Device Role / Timing Role: Secondary-level protection device after gas discharge tube (GDT) primary stage, providing low-clamp refinement. Use Value: Clamps to ≤234 V within nanoseconds, reducing residual stress on downstream TVS arrays and magnetics, extending system MTBF. | Use Scenario: Suppressing line-to-line and line-to-earth transients on AC-DC adapter primary-side rectifier outputs. IC Role / Device Role / Timing Role: Bidirectional clamp across DC bus rails to prevent overvoltage damage to smoothing capacitors and controller ICs. Use Value: Operates up to +175 °C ambient, supporting compact, thermally constrained adapter designs without derating penalties. |
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 | DO-214AA package, 600 W PPPM, lower clamping voltage (220 V), higher IPPM (2.7 A) | Better suited for space-constrained PCBs requiring higher surge margin; not AEC-Q101 qualified in standard grade | Select SMBJ170CA when board area is limited and AEC-Q101 is not mandatory; verify thermal pad layout for SMB footprint. |
| 1.5KE170CA | DO-201AD package, 1500 W PPPM, same VBR/VWM, higher IPPM (6.2 A), larger body | Used where higher single-event energy absorption is needed (e.g., main power rail protection), but incompatible with DO-41 footprint | Choose 1.5KE170CA for primary-level AC/DC input protection; requires PCB redesign due to larger DO-201AD outline. |
Compared with SMBJ170CA and 1.5KE170CA, P4KE170CAHE3/54 offers AEC-Q101 qualification and DO-41 compatibility for legacy automotive and industrial designs, trading peak power for proven mechanical fit and qualification status - ideal where footprint retention and automotive reliability are prioritized over raw surge capacity.
Availability
P4KE170CAHE3/54 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and telecom line surge suppression requiring stable component supply across multi-year production cycles.
Supply support for P4KE170CAHE3/54 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 P4KE series belongs to Vishay's TRANSZORB® TVS family, engineered for cost-effective, high-volume transient suppression in automotive, industrial, and consumer power and signal lines - balancing clamping precision, surge robustness, and qualification compliance.
FAQ
What is the breakdown voltage range of the P4KE170CAHE3/54?
The P4KE170CAHE3/54 has a specified breakdown voltage (VBR) range of 162 V to 179 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This range ensures consistent avalanche initiation across manufacturing lots and temperature extremes, critical for predictable clamping behavior in automotive and industrial applications where the P4KE170CAHE3/54 is deployed.
Is the P4KE170CAHE3/54 suitable for automotive applications?
Yes, the P4KE170CAHE3/54 is AEC-Q101 qualified (denoted by the HE3 suffix), confirming validation for automotive use including temperature cycling, highly accelerated life testing, and ESD robustness. Its DO-41 package, 175 °C max junction temperature, and bidirectional clamping make it appropriate for under-hood sensor interfaces, body control modules, and infotainment power rails where the P4KE170CAHE3/54 provides certified transient immunity.
What does the "CA" suffix indicate in P4KE170CAHE3/54?
The "CA" suffix in P4KE170CAHE3/54 denotes bidirectional configuration - meaning the device functions identically in both forward and reverse bias, with symmetrical breakdown and clamping characteristics. Unlike unidirectional variants (e.g., P4KE170A), the P4KE170CAHE3/54 requires no polarity marking and is ideal for AC-coupled lines, differential buses, or floating grounds where voltage polarity reversal occurs.
How does the P4KE170CAHE3/54 compare to the P4KE170A variant?
The P4KE170CAHE3/54 is bidirectional, whereas P4KE170A is unidirectional with a cathode band marking. Both share identical VBR, VWM, and PPPM, but P4KE170A supports forward conduction and specifies IFSM = 40 A and VF = 5.0 V at 25 A - parameters not applicable to the P4KE170CAHE3/54. Use P4KE170CAHE3/54 where polarity-agnostic clamping is required; choose P4KE170A only if DC-biased unidirectional protection is needed.
What is the maximum clamping voltage of the P4KE170CAHE3/54 during a surge event?
The P4KE170CAHE3/54 clamps to a maximum of 234 V at its rated peak pulse current (IPPM) of 1.7 A, defined for a 10/1000 µs waveform. This clamping voltage is guaranteed across temperature and lot variations, ensuring downstream circuitry - such as microcontrollers, transceivers, or op-amps - remains below absolute maximum ratings even during worst-case transients where the P4KE170CAHE3/54 activates.
P4KE170CAHE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, 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):
- 1.7A
- Power - Peak Pulse:
- 400W
- 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:
- DO-204AL (DO-41)
P4KE170CAHE3/54 FAQ
1.How can I place an order for P4KE170CAHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE170CAHE3/54 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 P4KE170CAHE3/54 reliable?
The price and inventory of P4KE170CAHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE170CAHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KE170CAHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE170CAHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE170CAHE3/54?
P4KE170CAHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE170CAHE3/54 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 P4KE170CAHE3/54?
For technical support, including P4KE170CAHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE170CAHE3/54 requirements.
6.How does Aetrix verify that P4KE170CAHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE170CAHE3/54 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 P4KE170CAHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KE170CAHE3/54?
All P4KE170CAHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE170CAHE3/54, 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 P4KE170CAHE3/54 part is unused and in its original packaging.
Return procedure for P4KE170CAHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE170CAHE3/54 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
