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Vishay General Semiconductor - Diodes Division P6KE91HE3/73
- Part No.:
- P6KE91HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE91HE3/73.pdf
- Description:
- TVS DIODE 73.7VWM 131VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,681
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Product details
Overview
P6KE91HE3/73 from Vishay General Semiconductor is a uni-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for primary overvoltage protection of sensitive electronics. It features a 91 V breakdown voltage (VBR min/max = 86.5–95.5 V at 1.0 mA), 77.8 V stand-off voltage (VWM), 125 V maximum clamping voltage (VC) at 4.8 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed on power rails and signal lines in automotive ECUs and industrial motor drives.
For engineers reviewing the P6KE91HE3/73 datasheet, P6KE91HE3/73 pinout, P6KE91HE3/73 application, or P6KE91HE3/73 equivalent, this AEC-Q101 qualified, RoHS-compliant TVS offers verified surge immunity for 12 V/24 V systems, validated clamping performance under repetitive transients, and lead-free matte tin terminations meeting J-STD-002 solderability standards.
Technical Context
The P6KE91HE3/73 operates as a silicon avalanche diode, leveraging glass-passivated junction technology to achieve sub-nanosecond response time and low incremental surge resistance. Its uni-directional polarity enables integration into DC-biased circuits where reverse conduction must be blocked until clamping threshold is exceeded.
Thermal design is supported by RθJL = 20 °C/W (junction-to-lead) and TJ(max) = 175 °C, enabling reliable operation under high ambient conditions when mounted on PCB copper pour or short leads. The device complies with UL 497B (QVGQ2 recognition) and meets JESD 201 Class 2 whisker resistance per HE3 suffix designation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 86.5 V / 95.5 V at IT = 1.0 mA - defines precise avalanche onset window for predictable clamping initiation |
| VWM | 77.8 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 125 V at 4.8 A (10/1000 μs) - limits downstream voltage stress during worst-case surge events |
| PPPM | 600 W - peak transient energy absorption capacity without failure under standardized surge waveform |
| IFSM | 100 A (8.3 ms half-sine) - withstands high-current inrush or load-dump surges common in automotive 12 V systems |
| TJ(max) | 175 °C - supports operation in under-hood environments and thermally constrained industrial enclosures |
| Package | DO-204AC (DO-15) - industry-standard axial-leaded package with UL 94 V-0 molded epoxy housing |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, cylindrical epoxy body with cathode band marking. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102. Mechanical dimensions: 3.6 mm max diameter, 7.6 mm min lead length, 25.4 mm min overall length.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in uni-directional configuration |
| Cathode (banded end) | Avalanche clamping terminal | Connected to protected line (e.g., 12 V rail or sensor input); conducts only during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated reliability for automotive applications including engine control, body electronics, and ADAS sensors |
| Glass passivated junction | Enables stable VBR tolerance and long-term leakage stability under thermal cycling and humidity |
| 600 W peak pulse power (10/1000 μs) | Provides robust protection against ISO 7637-2 Pulse 1, 2a, 3a/b, and IEC 61000-4-5 Level 4 surges |
| JESD 201 Class 2 whisker resistance | Ensures mechanical integrity of matte tin leads under high-temperature storage and reflow conditions |
| UL 497B recognition (QVGQ2) | Confirms compliance for telecom and industrial signal-line protection per safety-critical standards |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Suppressing load dump transients (up to ±120 V) on 12 V battery-fed microcontroller power supplies in engine control units. IC Role / Device Role / Timing Role: Primary clamping element placed between VCC and GND, activated within <1 ns upon exceeding VWM. Use Value: Limits voltage seen by MCU to ≤125 V during 100 ms load dump, preventing latch-up or gate oxide damage. |
Use Scenario: Protecting analog inputs of 4–20 mA current-loop transmitters from ESD and inductive switching noise in factory automation PLCs. IC Role / Device Role / Timing Role: Uni-directional shunt clamp on signal line referenced to system ground, absorbing fast-rising spikes. Use Value: Maintains signal integrity below 125 V clamping level while adding <1 pF capacitance - no bandwidth degradation. |
| Telecom Line Surge Suppression | Consumer Power Adapter Input Protection |
|
Use Scenario: Guarding RS-485 transceiver bus lines against lightning-induced surges in outdoor base station backhaul links. IC Role / Device Role / Timing Role: Secondary-level TVS placed after gas discharge tube (GDT), handling residual energy after coarse suppression. Use Value: Clamps differential-mode surges to <125 V within nanoseconds, preserving transceiver IC's ±15 kV HBM ESD rating. |
Use Scenario: Safeguarding AC-DC adapter primary-side rectifier output against mains overvoltage and capacitor discharge spikes. IC Role / Device Role / Timing Role: Standoff-rated clamping diode across bulk capacitor, triggered only during abnormal overvoltage events. Use Value: Prevents capacitor overvoltage failure and secondary-side regulator damage without affecting normal 90–264 VAC operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ90A | DO-214AA package; 90 V VBR (min/max = 100–111 V); 600 W rating; lower RθJA (50 °C/W vs. 75 °C/W) | Surface-mount alternative with higher thermal efficiency but requires PCB rework for through-hole replacement | Select SMBJ90A for new SMT designs prioritizing board space and thermal performance; not drop-in for P6KE91HE3/73 |
| 1.5KE91A | Same DO-204AC package; identical VBR range (86.5–95.5 V); 1500 W PPPM; higher IPPM (10.5 A) | Higher-power variant suitable for 24 V truck systems or industrial UPS where surge energy exceeds 600 W | Choose 1.5KE91A when legacy 1.5 kW surge margin is required; larger footprint and higher cost than P6KE91HE3/73 |
Compared with SMBJ90A and 1.5KE91A, the P6KE91HE3/73 delivers optimal balance of AEC-Q101 qualification, axial-leaded manufacturability, and 600 W surge capability for cost-sensitive 12 V automotive and industrial applications - offering proven field reliability without over-engineering.
Availability
P6KE91HE3/73 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, telecom line protection, and consumer power adapter designs requiring stable component supply and AEC-Q101 compliance.
Supply support for P6KE91HE3/73 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P6KE series belongs to Vishay's TRANSZORB® TVS portfolio, engineered for cost-effective, high-surge-capability overvoltage protection in automotive, industrial, and telecom infrastructure - targeting robustness under real-world transient stress.
FAQ
What is the clamping voltage of P6KE91HE3/73 at its rated peak pulse current?
The P6KE91HE3/73 has a maximum clamping voltage (VC) of 125 V at 4.8 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88369 and ensures downstream circuitry remains within safe voltage limits during surge events. The P6KE91HE3/73 maintains this clamping performance across its full operating temperature range of –55 °C to +175 °C.
Is P6KE91HE3/73 suitable for automotive applications?
Yes, P6KE91HE3/73 is AEC-Q101 qualified and explicitly rated for automotive use, including engine control modules, body electronics, and ADAS sensor interfaces. Its HE3 suffix confirms compliance with JESD 201 Class 2 whisker resistance and UL 497B recognition, making P6KE91HE3/73 appropriate for under-hood and chassis-mounted systems subject to vibration, thermal cycling, and load dump transients.
What does the 'HE3' suffix mean in P6KE91HE3/73?
The 'HE3' suffix in P6KE91HE3/73 indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. Unlike the base 'E3' suffix (commercial grade), 'HE3' denotes automotive-grade reliability testing, including extended temperature cycling and mechanical robustness validation - critical for P6KE91HE3/73 deployment in safety-relevant vehicle subsystems.
How does P6KE91HE3/73 differ from P6KE91A-E3/73?
P6KE91HE3/73 and P6KE91A-E3/73 share identical electrical specifications (VBR, VWM, VC, PPPM) and DO-204AC packaging, but differ in qualification level: P6KE91HE3/73 is AEC-Q101 qualified and JESD 201 Class 2 compliant, whereas P6KE91A-E3/73 is commercial-grade only. This makes P6KE91HE3/73 the designated choice for automotive and high-reliability industrial applications where P6KE91HE3/73 certification is mandatory.
What is the maximum operating temperature for P6KE91HE3/73?
The P6KE91HE3/73 has a maximum junction temperature (TJ(max)) of +175 °C and an operating junction/storage temperature range of –55 °C to +175 °C. This wide thermal envelope allows P6KE91HE3/73 to function reliably in under-hood automotive environments, industrial motor drives, and enclosed power supplies where ambient temperatures exceed 105 °C - supported by RθJL = 20 °C/W for effective heat transfer to PCB leads.
P6KE91HE3/73 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 73.7V
- Voltage - Breakdown (Min):
- 81.9V
- Voltage - Clamping (Max) @ Ipp:
- 131V
- Current - Peak Pulse (10/1000µs):
- 4.6A
- Power - Peak Pulse:
- 600W
- 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-204AC (DO-15)
P6KE91HE3/73 FAQ
1.How can I place an order for P6KE91HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE91HE3/73 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 P6KE91HE3/73 reliable?
The price and inventory of P6KE91HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE91HE3/73 is usually 5 days.
3.What payment methods are accepted for P6KE91HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE91HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE91HE3/73?
P6KE91HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE91HE3/73 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 P6KE91HE3/73?
For technical support, including P6KE91HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE91HE3/73 requirements.
6.How does Aetrix verify that P6KE91HE3/73 is sourced from the original manufacturer or authorized distributors?
All P6KE91HE3/73 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 P6KE91HE3/73 meets industry standards.
7.What is the process for return or replacement of P6KE91HE3/73?
All P6KE91HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE91HE3/73, 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 P6KE91HE3/73 part is unused and in its original packaging.
Return procedure for P6KE91HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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