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Vishay General Semiconductor - Diodes Division P4KE120CAHE3/54
- Part No.:
- P4KE120CAHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE120CAHE3/54.pdf
- Description:
- TVS DIODE 102VWM 165VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,979
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Product details
Overview
P4KE120CAHE3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on power and signal lines. It features a 102 V stand-off voltage (VWM), 114–126 V breakdown voltage (VBR) at 1 mA, 165 V maximum clamping voltage (VC) at 2.4 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - used to protect automotive sensor interfaces and industrial I/O circuits against ESD and inductive switching surges.
For engineers reviewing the P4KE120CAHE3/54 datasheet, P4KE120CAHE3/54 pinout, P4KE120CAHE3/54 application, or P4KE120CAHE3/54 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, DO-41 mechanical compatibility, thermal resistance (RθJL = 66 °C/W), and low leakage (<1.0 μA at VWM) for low-power system protection.
Technical Context
This device operates as a voltage-clamped surge protector with symmetrical avalanche behavior in both polarities, enabling use on AC lines or ungrounded differential signals without polarity constraints. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance under repetitive transient stress.
The P4KE120CAHE3/54 delivers 400 W peak pulse power handling per 10/1000 μs waveform at 25 °C, derating linearly above TA = 25 °C per Figure 2, with maximum junction temperature of +175 °C and thermal resistance from junction to lead of 66 °C/W - supporting reliable operation in high-temperature automotive engine bay or industrial control environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 102 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR min/max | 114 V / 126 V at 1 mA - Confirmed breakdown range ensuring predictable turn-on during overvoltage events. |
| VC @ IPPM | 165 V at 2.4 A - Clamping voltage under full-rated surge; limits downstream component stress during transient suppression. |
| PPPM | 400 W - Peak pulse power dissipation capability with 10/1000 μs waveform; validates robustness against lightning or inductive kick. |
| ID @ VWM | <1.0 μA - Extremely low reverse leakage at stand-off voltage; preserves battery life and signal integrity in always-on systems. |
| TJ max | +175 °C - Maximum junction temperature rating; enables deployment in under-hood automotive or high-ambient industrial locations. |
| RθJL | 66 °C/W - Junction-to-lead thermal resistance; supports thermal design with minimal heatsinking for PCB-mounted applications. |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; no polarity marking for bidirectional configuration; body length 25.4 mm min, lead diameter 0.71–0.86 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Bidirectional avalanche junction | Identical clamping behavior in either polarity; no cathode band - symmetric terminal function for AC or floating-line protection. |
| Lead 1 / Lead 2 | Current path terminals | Leads serve as both connection points and primary heat conduction path to PCB; RθJL = 66 °C/W confirms thermal reliance on lead soldering. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and HTRB - suitable for engine control, ADAS sensor, and infotainment power rails. |
| Glass passivated junction | Stable VBR tolerance and low leakage over lifetime; resists moisture ingress and surface contamination in harsh environments. |
| 400 W 10/1000 μs pulse rating | Withstands repeated surge events up to 400 W without degradation - meets IEC 61000-4-5 Level 3 (1 kV line-to-line) requirements. |
| UL 94 V-0 molding compound | Self-extinguishing epoxy housing prevents flame propagation in safety-critical enclosures and industrial control cabinets. |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker resistance; eliminates tin whisker risk in long-life automotive and telecom infrastructure deployments. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., oxygen, pressure) from load dump and alternator ripple in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across power rail or signal pair to limit transient excursions before they reach sensitive IC inputs. Use Value: Maintains signal fidelity and prevents latch-up in microcontrollers by clamping surges to ≤165 V while drawing <1 μA at 102 V nominal operation. | Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and motor drive noise in factory automation. IC Role / Device Role / Timing Role: Standoff voltage suppressor on 24 V DC input channels, absorbing inductive energy from solenoid deactivation without affecting steady-state logic levels. Use Value: Enables reliable detection of true logic transitions by eliminating false triggering caused by >100 V transients, with no added capacitance affecting response time. |
| Telecom Line Interface | Consumer Power Adapter Output |
Use Scenario: Secondary-side surge protection on Ethernet PHY power supplies and RS-485 termination networks in base station equipment. IC Role / Device Role / Timing Role: Fast-response shunt clamp on isolated DC-DC output rails to prevent overvoltage damage to PHY ICs during lightning-induced common-mode surges. Use Value: Achieves sub-nanosecond response with low clamping ratio (VC/VBR ≈ 1.45), limiting stress on 3.3 V or 5 V interface ICs without requiring series impedance. | Use Scenario: Output rail protection in wall-mounted AC/DC adapters for smart home devices, guarding against output capacitor failure or feedback loop instability. IC Role / Device Role / Timing Role: Final-stage overvoltage limiter between secondary-side rectifier and USB-PD controller, activated only during fault conditions. Use Value: Prevents fire hazard and component explosion by clamping sustained overvoltage to 165 V before thermal runaway occurs, compliant with UL 62368-1 Annex G. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ120CA | DO-214AA package (SMB), higher IPPM (32.3 A), same VWM/VC ratings, lower RθJA (50 °C/W) | Better suited for high-density layouts where surface-mount footprint is preferred over through-hole DO-41 | Select SMBJ120CA when board space is constrained and reflow assembly is used; verify lead-free solder compatibility and thermal pad layout. |
| 1.5KE120CA | Higher PPPM (1500 W), larger DO-201AD package, same VWM/VBR range, slower response due to higher junction capacitance | Targeted at heavy-duty industrial mains protection where energy absorption takes priority over speed | Choose 1.5KE120CA for legacy designs requiring higher surge margin on AC mains inputs; confirm mechanical fit and mounting clearance. |
Compared with SMBJ120CA and 1.5KE120CA, the P4KE120CAHE3/54 offers optimal balance of AEC-Q101 qualification, DO-41 through-hole reliability, and 400 W surge capacity - making it ideal for automotive and industrial applications where proven mechanical robustness and qualification traceability are mandatory.
Availability
P4KE120CAHE3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line interfaces, and consumer power adapter outputs requiring stable component supply across extended production lifecycles.
Supply support for P4KE120CAHE3/54 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, precision, and automotive-grade qualification.
The P4KE series belongs to Vishay's TRANSZORB® TVS portfolio, engineered specifically for robust, standardized transient suppression in automotive, industrial, and telecom infrastructure - prioritizing AEC-Q101 compliance, repeatable clamping performance, and UL-certified packaging.
FAQ
What does the "CA" suffix indicate in P4KE120CAHE3/54?
The "CA" suffix denotes a bidirectional configuration: the P4KE120CAHE3/54 provides symmetrical clamping in both forward and reverse directions, with identical VBR, VC, and IPPM characteristics regardless of polarity. This makes it suitable for AC-coupled lines, differential buses like RS-485, or ungrounded sensor interfaces where voltage transients may occur in either direction - unlike unidirectional "A" variants that require correct cathode orientation.
Is P4KE120CAHE3/54 qualified for automotive applications?
Yes, the P4KE120CAHE3/54 carries the HE3 suffix, confirming AEC-Q101 qualification per Vishay documentation (Document 88365, Note on page 3). This includes stress testing for temperature cycling, high-temperature reverse bias, and unbiased highly accelerated stress testing - validating its use in engine control units, body electronics, and ADAS sensor modules where reliability under thermal and electrical stress is critical.
What is the maximum clamping voltage of P4KE120CAHE3/54 under surge conditions?
The P4KE120CAHE3/54 has a maximum clamping voltage (VC) of 165 V at 2.4 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per Figure 1 and Table on page 2 of the Vishay datasheet (88365), and represents the upper voltage limit imposed on protected circuitry during worst-case transient events - essential for ensuring downstream ICs remain within absolute maximum ratings.
How does the HE3 suffix differ from E3 in P4KE120CAHE3/54?
The HE3 suffix in P4KE120CAHE3/54 indicates RoHS-compliance plus AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, whereas E3 denotes RoHS-compliance only with JESD 201 Class 1A whisker testing. The HE3 variant is required for automotive and high-reliability industrial applications where long-term tin whisker mitigation and automotive qualification are mandatory - confirmed in the Mechanical Data section of Vishay Document 88365.
Can P4KE120CAHE3/54 be used in place of P4KE120A?
No - P4KE120CAHE3/54 is bidirectional, while P4KE120A is unidirectional with a cathode band marking. Substituting them requires verifying circuit topology: P4KE120A must be oriented correctly to block reverse current, whereas P4KE120CAHE3/54 functions identically in either orientation. Using P4KE120CAHE3/54 in a unidirectional design may increase leakage in forward bias and alter clamping symmetry - always consult the specific application schematic and transient profile before interchange.
P4KE120CAHE3/54 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):
- 102V
- Voltage - Breakdown (Min):
- 114V
- Voltage - Clamping (Max) @ Ipp:
- 165V
- Current - Peak Pulse (10/1000µs):
- 2.4A
- 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)
P4KE120CAHE3/54 FAQ
1.How can I place an order for P4KE120CAHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE120CAHE3/54 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 P4KE120CAHE3/54 reliable?
The price and inventory of P4KE120CAHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE120CAHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KE120CAHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE120CAHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE120CAHE3/54?
P4KE120CAHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE120CAHE3/54 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 P4KE120CAHE3/54?
For technical support, including P4KE120CAHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE120CAHE3/54 requirements.
6.How does Aetrix verify that P4KE120CAHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE120CAHE3/54 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 P4KE120CAHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KE120CAHE3/54?
All P4KE120CAHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE120CAHE3/54, 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 P4KE120CAHE3/54 part is unused and in its original packaging.
Return procedure for P4KE120CAHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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