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Vishay General Semiconductor - Diodes Division P4KE9.1CAHE3/54
- Part No.:
- P4KE9.1CAHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE9.1CAHE3/54.pdf
- Description:
- TVS DIODE 7.78VWM 13.4VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,004
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Product details
Overview
P4KE9.1CAHE3/54 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 9.1 V breakdown voltage (VBR min/max = 8.65–9.55 V at 1.0 mA), 7.78 V standoff voltage (VWM), 13.4 V clamping voltage (VC) at 29.9 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial systems.
For engineers reviewing the P4KE9.1CAHE3/54 datasheet, P4KE9.1CAHE3/54 pinout, P4KE9.1CAHE3/54 application, or P4KE9.1CAHE3/54 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, DO-41 mechanical compatibility, low leakage (<50 μA at VWM), and thermal resistance (RθJL = 66 °C/W) for reliable surge handling in constrained PCB layouts.
Technical Context
This device operates as a voltage-clamping protection element in bidirectional configurations, responding to transient overvoltages in either polarity without requiring external polarity management. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, enabling consistent clamping performance across repetitive 10/1000 μs pulses at 0.01% duty cycle.
The P4KE9.1CAHE3/54 is rated for operation from –55 °C to +175 °C junction temperature, with thermal resistance of 66 °C/W (junction-to-lead) and 100 °C/W (junction-to-ambient, LLead = 10 mm). It meets JESD 201 Class 2 whisker testing and UL 94 V-0 flammability requirements, supporting high-reliability deployment in automotive ECUs and industrial control modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 8.65 V / 9.55 V at IT = 1.0 mA - defines precise voltage threshold where clamping begins in both directions |
| VWM | 7.78 V - maximum continuous reverse operating voltage before leakage exceeds 50 μA |
| VC @ IPPM | 13.4 V at 29.9 A - clamped voltage during 400 W transient, limiting stress on downstream components |
| PPPM | 400 W - peak pulse power handling with 10/1000 μs waveform, validated for repetitive surge events |
| IPPM | 29.9 A - maximum non-repetitive surge current the device safely conducts without failure |
| TJ max. | +175 °C - enables operation in under-hood automotive environments and high-temperature industrial enclosures |
| RθJL | 66 °C/W - low thermal resistance supports efficient heat transfer to PCB traces or heatsinked leads |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded molded epoxy case with matte tin-plated leads; RoHS-compliant and AEC-Q101 qualified (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity event) | Conducts surge current when cathode-side voltage drops below anode by ≥VBR |
| Cathode | Transient current entry (positive polarity event) | Conducts surge current when anode-side voltage rises above cathode by ≥VBR |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints |
| AEC-Q101 qualification | Validated reliability for automotive powertrain, body electronics, and ADAS sensor interfaces |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage drift over temperature and lifetime |
| 400 W peak pulse rating | Withstands ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 3 surges without degradation |
| UL 94 V-0 molding compound | Provides flame-retardant encapsulation required for safety-critical industrial and transportation systems |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients 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 ≤13.4 V, preventing latch-up or gate oxide damage in 5 V/3.3 V interface ICs while maintaining signal integrity. |
Use Scenario: Safeguarding 24 V digital input modules in programmable logic controllers against field-wiring induced surges and relay contact bounce. IC Role / Device Role / Timing Role: Primary surge suppression device mounted at terminal block entry point before optocoupler or Schmitt trigger input stage. Use Value: Absorbs up to 400 W of energy without failure, allowing system-level compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) immunity standards. |
| Consumer Power Adapter Input | Telecom Line Interface Protection |
Use Scenario: Secondary-side overvoltage protection in AC/DC adapters and USB PD chargers exposed to mains-borne transients. IC Role / Device Role / Timing Role: Clamping component across DC output rails or between VOUT and GND to suppress flyback spikes and ESD events. Use Value: Fast response time and low clamping voltage prevent overvoltage shutdown of synchronous rectifier controllers and secondary-side feedback ICs. |
Use Scenario: Protecting Ethernet PHYs and DSL line drivers from lightning-induced surges and hot-swap transients on RJ-45 or modular jack interfaces. IC Role / Device Role / Timing Role: Bidirectional TVS placed across transformer-coupled data lines or directly at PHY pins for common-mode and differential-mode suppression. Use Value: Matches impedance of telecom line circuits while delivering sub-100 ns response and <50 μA leakage at 7.78 V standby. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0CA | DO-214AA package, 9.0 V VBR, 600 W PPPM, higher IPPM (42.9 A), surface-mount | Requires SMT layout; better suited for high-density PCBs and automated assembly | Select when board space is constrained and reflow compatibility is required over through-hole mounting. |
| 1.5KE9.1CA | DO-201AD package, same VBR/VC, 1500 W PPPM, higher IPPM (112 A), larger footprint | Designed for higher-energy transients; used in main power rail protection and AC front-end stages | Choose for primary-side AC/DC input protection where surge energy exceeds 400 W capability. |
Compared with SMBJ9.0CA and 1.5KE9.1CA, the P4KE9.1CAHE3/54 offers optimal balance of AEC-Q101 qualification, DO-41 through-hole robustness, and 400 W surge handling - making it ideal for mid-tier automotive and industrial signal-line protection where leaded reliability and thermal derating margin are prioritized over peak power or miniaturization.
Availability
P4KE9.1CAHE3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, long-term lifecycle support, and traceable AEC-Q101 qualified parts.
Supply support for P4KE9.1CAHE3/54 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, efficiency, and application-specific optimization.
The P4KE9.1CAHE3/54 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, bidirectional transient suppression in harsh environments - targeting automotive, industrial, and communications infrastructure where AEC-Q101 compliance and repeatable clamping performance are mandatory.
FAQ
What is the breakdown voltage range of the P4KE9.1CAHE3/54?
The P4KE9.1CAHE3/54 has a specified breakdown voltage (VBR) range of 8.65 V to 9.55 V at a test current of 1.0 mA. This tight tolerance ensures predictable clamping onset in both polarities and supports accurate system-level overvoltage margining for 5 V and 3.3 V interfaces. The value is measured per ANSI/IEEE C62.35 and confirmed across production lots.
Is the P4KE9.1CAHE3/54 suitable for automotive applications?
Yes, the P4KE9.1CAHE3/54 is AEC-Q101 qualified (HE3 suffix), meaning it has passed stress tests including high-temperature operating life, temperature cycling, and surge robustness required for automotive electronics. It is deployed in engine control units, body control modules, and ADAS sensor interfaces where bidirectional transient protection is needed.
What does the "CA" suffix indicate in P4KE9.1CAHE3/54?
The "CA" suffix denotes that the P4KE9.1CAHE3/54 is a bidirectional Transient Voltage Suppressor - capable of clamping overvoltage transients of either polarity across its terminals. Unlike unidirectional variants (e.g., P4KE9.1A), it has no polarity marking and functions identically in forward and reverse bias conditions above VBR.
How does the clamping voltage of P4KE9.1CAHE3/54 compare to its breakdown voltage?
The P4KE9.1CAHE3/54 clamps at 13.4 V when subjected to its rated peak pulse current of 29.9 A (10/1000 μs waveform). This represents a ~40% overvoltage margin above its maximum VBR of 9.55 V, ensuring protected ICs experience minimal overvoltage stress while maintaining sufficient headroom to avoid false triggering during normal operation.
What packaging and reel configuration is supplied for P4KE9.1CAHE3/54?
The P4KE9.1CAHE3/54 is supplied in 13-inch diameter paper tape and reel format with a base quantity of 5500 units per reel (ordering code /54). Leads are matte tin-plated and solderable per J-STD-002 and JESD 22-B102, and the HE3 suffix confirms compliance with JESD 201 Class 2 whisker testing for automotive-grade reliability.
P4KE9.1CAHE3/54 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):
- 7.78V
- Voltage - Breakdown (Min):
- 8.65V
- Voltage - Clamping (Max) @ Ipp:
- 13.4V
- Current - Peak Pulse (10/1000µs):
- 29.9A
- 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)
P4KE9.1CAHE3/54 FAQ
1.How can I place an order for P4KE9.1CAHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE9.1CAHE3/54 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 P4KE9.1CAHE3/54 reliable?
The price and inventory of P4KE9.1CAHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE9.1CAHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KE9.1CAHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE9.1CAHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE9.1CAHE3/54?
P4KE9.1CAHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE9.1CAHE3/54 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 P4KE9.1CAHE3/54?
For technical support, including P4KE9.1CAHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE9.1CAHE3/54 requirements.
6.How does Aetrix verify that P4KE9.1CAHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE9.1CAHE3/54 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 P4KE9.1CAHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KE9.1CAHE3/54?
All P4KE9.1CAHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE9.1CAHE3/54, 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 P4KE9.1CAHE3/54 part is unused and in its original packaging.
Return procedure for P4KE9.1CAHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE9.1CAHE3/54 Tags
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