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Vishay General Semiconductor - Diodes Division P6KE9.1C-E3/73
- Part No.:
- P6KE9.1C-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE9.1C-E3/73.pdf
- Description:
- TVS DIODE 7.37VWM 13.8VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,209
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Product details
Overview
P6KE9.1C-E3/73 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for clamping voltage transients on signal or power lines. It features 600 W peak pulse power (10/1000 μs), 13.4 V maximum clamping voltage at 44.8 A peak pulse current, and 7.78 V stand-off voltage - enabling robust protection of sensitive ICs and MOSFETs in automotive and industrial control interfaces.
For engineers reviewing the P6KE9.1C-E3/73 datasheet, P6KE9.1C-E3/73 pinout, P6KE9.1C-E3/73 application, or P6KE9.1C-E3/73 equivalent, key selection criteria include bi-directional clamping capability, low leakage (<50 μA at 7.78 V), AEC-Q101 qualification, thermal resistance (RθJL = 20 °C/W), and compatibility with 8.3 ms surge waveforms per JESD 22-B102 solderability standards.
Technical Context
This device operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ at 7.78 V), but triggers into low-impedance conduction when transient voltage exceeds its 8.65–9.55 V breakdown range (tested at 1.0 mA). Its glass-passivated junction ensures stable VBR tolerance and fast response (<1 ns).
Designed for bi-directional use, P6KE9.1C-E3/73 has no polarity marking and symmetric electrical characteristics in both directions - unlike uni-directional variants (e.g., P6KE9.1A). It meets UL 497B recognition (QVGQ2) and supports repetitive surges at 0.01% duty cycle, with derating above 25 °C per Fig. 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.78 V - maximum continuous reverse operating voltage before leakage exceeds 50 μA; defines safe working margin below clamping threshold |
| VBR (min/max) | 8.65 V / 9.55 V at 1.0 mA - tight 10.4% tolerance ensures predictable turn-on across temperature and production lot |
| VC @ IPPM | 13.4 V at 44.8 A - clamping voltage during 10/1000 μs surge; limits downstream stress to ≤13.4 V under worst-case 600 W transient |
| PPPM | 600 W - peak pulse power handling with 10/1000 μs waveform; enables protection against IEC 61000-4-5 Level 4 surges |
| IPPM | 44.8 A - maximum non-repetitive peak pulse current; determines minimum series impedance required for fuse coordination |
| TJ max | 175 °C - maximum junction temperature; supports operation in under-hood automotive environments with proper PCB copper area |
| RθJL | 20 °C/W - thermal resistance junction-to-lead; enables 5.0 W steady-state dissipation at 75 °C lead temperature (Fig. 5) |
Pinout & Package
Package: DO-204AC (DO-15), molded epoxy case meeting UL 94 V-0 flammability rating; matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102; RoHS-compliant (E3 suffix), AEC-Q101 qualified (HE3 variant exists, but P6KE9.1C-E3/73 is commercial-grade E3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Bi-directional terminal pair | No polarity marking; terminals are functionally identical - voltage clamping occurs symmetrically in either direction |
| Case (body) | Non-electrical mechanical interface | DO-15 axial package body provides mechanical mounting and thermal path via PCB copper; no electrical connection |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR over lifetime and humidity exposure; eliminates risk of junction corrosion in humid industrial environments |
| 600 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 combination wave testing up to 4 kV open-circuit / 2 kA short-circuit without degradation |
| AEC-Q101 qualification (family-level) | Validates reliability for automotive electronics - though P6KE9.1C-E3/73 itself carries E3 (commercial) suffix, its HE3 variant is AEC-Q101 qualified |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD >15 kV); contributes to 13.4 V clamping at 44.8 A |
| UL 497B recognition (QVGQ2) | Enables use in telecom and industrial signal line protectors requiring third-party safety certification for surge protection circuits |
Applications
| Automotive Sensor Interface Protection | Industrial CAN Bus Line Protection |
|---|---|
|
Use Scenario: Protecting LIN/CAN transceiver inputs from load-dump and inductive switching transients in engine control units. IC Role / Device Role / Timing Role: Shunt-clamping TVS placed directly at connector entry point to divert surge energy before reaching transceiver ESD structures. Use Value: Clamps transients to ≤13.4 V while sustaining 44.8 A pulses - preventing latch-up or gate oxide damage in ISO 11898-compliant receivers. |
Use Scenario: Safeguarding RS-485/CAN bus nodes against lightning-induced surges in factory automation PLC backplanes. IC Role / Device Role / Timing Role: Bi-directional voltage clamp on differential bus lines (CAN_H/CAN_L), symmetrically suppressing common-mode and differential-mode transients. Use Value: Maintains signal integrity by limiting bus voltage excursion to ±13.4 V during 600 W surges - preserving receiver common-mode range and avoiding false dominant states. |
| Consumer Power Adapter Input Stage | Telecom DSL Line Surge Protection |
|
Use Scenario: Secondary-side transient suppression on 5–12 V DC outputs of wall adapters exposed to mains-borne noise. IC Role / Device Role / Timing Role: Low-capacitance shunt protector placed after DC-DC converter output filter to absorb residual switching spikes and EFT bursts. Use Value: 7.78 V stand-off allows uninterrupted 9 V nominal operation; 13.4 V clamping prevents overvoltage damage to connected USB peripherals or microcontrollers. |
Use Scenario: Primary protection on DSL line cards subjected to induced surges from nearby AC power lines or lightning coupling. IC Role / Device Role / Timing Role: First-stage bi-directional clamp on tip/ring lines before hybrid transformer and line driver ICs. Use Value: UL 497B recognition and 600 W rating meet Telcordia GR-1089-CORE Level 3 requirements for central office equipment surge immunity. |
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 VWM, 12.6 V VC @ 48.2 A; 600 W rating; same bi-directional function | Lower clamping voltage (12.6 V vs. 13.4 V) but larger footprint; higher thermal mass improves surge endurance in high-temperature enclosures | Select SMBJ9.0CA when board space permits and lower clamping voltage is critical for 3.3 V logic protection. |
| 1.5KE9.1C | Same DO-204AC package; 9.1 V nominal VBR; 13.4 V VC @ 44.8 A; identical electrical specs but legacy 1.5 kW series branding | No functional difference; 1.5KE9.1C is obsolete family with identical performance - P6KE9.1C-E3/73 offers improved manufacturing consistency and RoHS compliance | Prefer P6KE9.1C-E3/73 for new designs due to active status, AEC-Q101-qualified variants, and documented UL recognition. |
Compared with SMBJ9.0CA and 1.5KE9.1C, P6KE9.1C-E3/73 delivers identical clamping performance in a cost-optimized DO-15 package with verified UL 497B listing - making it optimal for space-constrained, high-volume industrial and automotive applications where regulatory compliance and supply continuity are critical.
Availability
P6KE9.1C-E3/73 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, consumer power adapter outputs, and telecom DSL line protection requiring stable component supply and full traceability.
Supply support for P6KE9.1C-E3/73 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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The P6KE series was developed for cost-sensitive, high-surge industrial and automotive applications where compact size, fast response, and repeatable clamping behavior are essential - targeting protection of voltage-sensitive ICs against inductive switching and lighting-induced transients.
FAQ
What is the polarity configuration of P6KE9.1C-E3/73?
P6KE9.1C-E3/73 is a bi-directional TVS diode with no cathode marking - both terminals are functionally identical and provide symmetrical clamping in either direction. This distinguishes it from uni-directional variants like P6KE9.1A, which feature a cathode band and conduct only in reverse bias. The "C" suffix explicitly denotes bi-directional construction per Vishay's naming convention.
Does P6KE9.1C-E3/73 meet AEC-Q101 qualification?
P6KE9.1C-E3/73 carries the E3 suffix, indicating RoHS-compliant commercial grade. While the P6KE family includes AEC-Q101-qualified variants (e.g., P6KE9.1CHE3), the specific part P6KE9.1C-E3/73 is not AEC-Q101 certified. For automotive applications requiring qualification, the HE3-suffixed version must be specified - P6KE9.1C-E3/73 remains suitable for industrial and consumer use where AEC-Q101 is not mandated.
What is the maximum clamping voltage of P6KE9.1C-E3/73 under surge conditions?
The maximum clamping voltage of P6KE9.1C-E3/73 is 13.4 V, measured at 44.8 A peak pulse current with a 10/1000 μs waveform. This value is guaranteed across temperature and production lot per Vishay Document 88369, and represents the upper limit of voltage imposed on protected circuitry during worst-case transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
How does P6KE9.1C-E3/73 differ from P6KE9.1A?
P6KE9.1C-E3/73 is bi-directional with symmetric breakdown and clamping in both polarities, while P6KE9.1A is uni-directional - conducting only in reverse bias and featuring a visible cathode band. Their VBR ranges (8.65–9.55 V) and VC (13.4 V) are identical, but P6KE9.1A specifies forward voltage (VF = 3.5 V at 50 A), whereas P6KE9.1C-E3/73 does not define forward conduction due to its bi-directional nature.
Is P6KE9.1C-E3/73 recognized by Underwriters Laboratories?
Yes - P6KE9.1C-E3/73 is UL-recognized under file E136766 for both uni- and bi-directional devices, complying with UL 497B for signal circuit protectors. This certification covers its use in telecom, industrial, and automotive surge protection applications where third-party safety validation is required, and applies specifically to the P6KE6.8A–P6KE540A family including P6KE9.1C-E3/73.
P6KE9.1C-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 7.37V
- Voltage - Breakdown (Min):
- 8.19V
- Voltage - Clamping (Max) @ Ipp:
- 13.8V
- Current - Peak Pulse (10/1000µs):
- 43.5A
- Power - Peak Pulse:
- 600W
- 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:
- DO-204AC (DO-15)
P6KE9.1C-E3/73 FAQ
1.How can I place an order for P6KE9.1C-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE9.1C-E3/73 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 P6KE9.1C-E3/73 reliable?
The price and inventory of P6KE9.1C-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE9.1C-E3/73 is usually 5 days.
3.What payment methods are accepted for P6KE9.1C-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE9.1C-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE9.1C-E3/73?
P6KE9.1C-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE9.1C-E3/73 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 P6KE9.1C-E3/73?
For technical support, including P6KE9.1C-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE9.1C-E3/73 requirements.
6.How does Aetrix verify that P6KE9.1C-E3/73 is sourced from the original manufacturer or authorized distributors?
All P6KE9.1C-E3/73 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 P6KE9.1C-E3/73 meets industry standards.
7.What is the process for return or replacement of P6KE9.1C-E3/73?
All P6KE9.1C-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE9.1C-E3/73, 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 P6KE9.1C-E3/73 part is unused and in its original packaging.
Return procedure for P6KE9.1C-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE9.1C-E3/73 Tags
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