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Vishay General Semiconductor - Diodes Division P4KE100CAHE3/73
- Part No.:
- P4KE100CAHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE100CAHE3/73.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,682
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Product details
Overview
P4KE100CAHE3/73 from Vishay General Semiconductor is a bidirectional TransZORB® transient voltage suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on signal or power lines. It features a 100 V standoff voltage (VWM), 110 V minimum breakdown voltage (VBR), 137 V maximum clamping voltage (VC) at 2.9 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM) with 10/1000 μs waveform. Used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial electronics.
For engineers reviewing the P4KE100CAHE3/73 datasheet, P4KE100CAHE3/73 pinout, P4KE100CAHE3/73 application, or P4KE100CAHE3/73 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, DO-41 mechanical compatibility, thermal resistance (RθJL = 66 °C/W), and compliance with IEC 61000-4-2/4-4/4-5 surge immunity requirements.
Technical Context
This device operates as a voltage-clamping protection element in both forward and reverse directions, leveraging an avalanche breakdown mechanism. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, enabling consistent clamping performance under repetitive 10/1000 μs transients at 0.01% duty cycle.
The P4KE100CAHE3/73 is rated for -55 °C to +175 °C operating 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 test requirements and is RoHS-compliant per JEDEC standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse working voltage before clamping initiates |
| VBR (min) | 110 V at 1 mA - Minimum voltage at which avalanche conduction begins, ensuring reliable turn-on margin |
| VC (max) | 137 V at IPPM = 2.9 A - Peak clamped voltage during 10/1000 μs surge, defining protected circuit's max overvoltage exposure |
| PPPM | 400 W - Peak pulse power handling with 10/1000 μs waveform, supporting common IEC 61000-4-5 surge levels |
| TJ max | +175 °C - Maximum junction temperature, enabling operation in under-hood automotive environments |
| RθJL | 66 °C/W - Junction-to-lead thermal resistance, critical for PCB trace heat sinking design in high-reliability layouts |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress testing |
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 | Transient current entry point in reverse bias | One terminal of symmetrical avalanche junction; identical electrical behavior to cathode in bidirectional mode |
| Cathode | Transient current entry point in forward bias | Second terminal of symmetrical junction; no color band or marking distinguishes polarity in CA-type devices |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance (±5%) and long-term reliability under humidity and thermal cycling |
| 400 W peak pulse power (10/1000 μs) | Supports Level 4 IEC 61000-4-5 (4 kV line-to-line, 2 Ω source impedance) without degradation |
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics applications requiring zero defect field performance |
| Low clamping ratio (VC/VBR ≈ 1.25) | Minimizes overvoltage stress on downstream ICs compared to higher-ratio TVS devices |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial and automotive control modules |
Applications
| Automotive Power Supply Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across input rails to shunt surge energy before it reaches DC-DC converters or microcontrollers. Use Value: Withstands 137 V clamping at 2.9 A, limiting rail overvoltage to safe levels for 3.3 V/5 V logic interfaces while maintaining AEC-Q101 compliance. | Use Scenario: Safeguarding analog outputs of pressure or temperature sensors connected to PLC I/O modules. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF typical) TVS placed at connector interface to absorb ESD and inductive switching spikes. Use Value: Clamps transients within 1 ns response time while adding negligible loading to 4–20 mA or 0–10 V analog signals due to minimal leakage (<1 μA at 100 V). |
| Telecom Interface Surge Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Shielding RS-485 transceivers in base station backhaul equipment from lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional clamping device installed differential-mode across A/B bus lines to suppress common-mode transients. Use Value: Matches differential bus impedance without skew; 137 V VC ensures transceiver ICs (e.g., MAX1487) remain within absolute maximum ratings during 4 kV IEC 61000-4-5 tests. | Use Scenario: Suppressing inductive kickback from brushed DC motors in smart home appliances (e.g., washing machine control boards). IC Role / Device Role / Timing Role: Parallel-connected TVS across motor terminals to clamp flyback voltage spikes during PWM commutation. Use Value: Handles 400 W peak pulses repeatedly without parametric shift; DO-41 package allows direct through-hole mounting near motor connectors for shortest possible loop inductance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100CA | Surface-mount SMB package (vs. through-hole DO-41); same 100 V VWM, 137 V VC, but 600 W PPPM rating | Better suited for high-density PCBs where space is constrained; lower RθJA (50 °C/W) enables higher surge repetition rates | Select SMBJ100CA when upgrading to SMT assembly or requiring higher pulse power headroom |
| 1.5KE100CA | Higher PPPM (1500 W), same DO-41 package and VWM/VC specs; larger die size increases junction capacitance (~150 pF vs. ~50 pF) | Preferred for legacy designs needing higher single-pulse robustness (e.g., industrial motor drives), but may affect high-speed signal integrity | Choose 1.5KE100CA only if system-level testing confirms 1500 W surge requirement and signal bandwidth permits added capacitance |
Compared with SMBJ100CA and 1.5KE100CA, the P4KE100CAHE3/73 offers optimal balance of AEC-Q101 qualification, DO-41 mechanical ruggedness, and low-cost through-hole manufacturability-making it ideal for cost-sensitive automotive and industrial control boards where 400 W surge immunity suffices.
Availability
P4KE100CAHE3/73 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom port surge suppression requiring stable component supply and full traceability.
Supply support for P4KE100CAHE3/73 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability and automotive-grade qualification.
The P4KE series targets cost-effective, high-volume transient protection in harsh environments; its design prioritizes AEC-Q101 compliance, robust thermal performance, and compatibility with standard DO-41 assembly processes.
FAQ
What is the clamping voltage of P4KE100CAHE3/73 under a 10/1000 μs surge?
The P4KE100CAHE3/73 has a maximum clamping voltage (VC) of 137 V at 2.9 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88365 and defines the upper voltage limit imposed on protected circuits during standardized surge events. The P4KE100CAHE3/73 maintains this clamping performance across its qualified temperature range (-55 °C to +175 °C).
Is P4KE100CAHE3/73 suitable for automotive applications?
Yes, P4KE100CAHE3/73 is AEC-Q101 qualified and specifically designed for automotive use. Its HE3 suffix denotes AEC-Q101 qualification, RoHS compliance, and JESD 201 Class 2 whisker resistance. The device operates from -55 °C to +175 °C and withstands load dump, ISO 7637-2 pulses, and ESD per IEC 61000-4-2-making P4KE100CAHE3/73 appropriate for engine control units, body controllers, and infotainment power inputs.
How does the bidirectional configuration of P4KE100CAHE3/73 affect its circuit placement?
The bidirectional configuration of P4KE100CAHE3/73 means it functions identically in both polarities-no cathode marking is present, and it can be mounted without orientation concern. This simplifies layout on AC-coupled lines (e.g., RS-485, CAN bus stubs) or unidirectional rails where reverse polarity faults must also be suppressed. Unlike unidirectional variants, P4KE100CAHE3/73 provides symmetric clamping above ±110 V, eliminating need for dual-diode arrangements.
What is the thermal resistance of P4KE100CAHE3/73, and why does it matter?
P4KE100CAHE3/73 has a typical junction-to-lead thermal resistance (RθJL) of 66 °C/W and junction-to-ambient (RθJA) of 100 °C/W with 10 mm lead length. These values directly impact sustained surge capability: lower RθJL allows faster heat dissipation into PCB copper pours or heatsinks, preventing thermal runaway during repetitive transients. For high-duty-cycle applications, optimizing solder pad area and via count beneath the DO-41 leads improves effective RθJA and extends P4KE100CAHE3/73 service life.
Does P4KE100CAHE3/73 have any flammability certifications?
Yes, P4KE100CAHE3/73 uses a molding compound certified to UL 94 V-0 flammability rating. This certification confirms the epoxy body self-extinguishes within 10 seconds after flame removal and produces no flaming drips-critical for enclosed automotive junction boxes, industrial control cabinets, and consumer appliance enclosures where fire propagation risk must be minimized. The UL 94 V-0 compliance is documented in Vishay's mechanical data section for the DO-41 package.
P4KE100CAHE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 85.5V
- Voltage - Breakdown (Min):
- 95V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 2.9A
- 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)
P4KE100CAHE3/73 FAQ
1.How can I place an order for P4KE100CAHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE100CAHE3/73 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 P4KE100CAHE3/73 reliable?
The price and inventory of P4KE100CAHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE100CAHE3/73 is usually 5 days.
3.What payment methods are accepted for P4KE100CAHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE100CAHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE100CAHE3/73?
P4KE100CAHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE100CAHE3/73 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 P4KE100CAHE3/73?
For technical support, including P4KE100CAHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE100CAHE3/73 requirements.
6.How does Aetrix verify that P4KE100CAHE3/73 is sourced from the original manufacturer or authorized distributors?
All P4KE100CAHE3/73 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 P4KE100CAHE3/73 meets industry standards.
7.What is the process for return or replacement of P4KE100CAHE3/73?
All P4KE100CAHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE100CAHE3/73, 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 P4KE100CAHE3/73 part is unused and in its original packaging.
Return procedure for P4KE100CAHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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