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Vishay General Semiconductor - Diodes Division P6KE91AHE3/54
- Part No.:
- P6KE91AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE91AHE3/54.pdf
- Description:
- TVS DIODE 77.8VWM 125VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,681
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Product details
Overview
P6KE91AHE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-15 package, designed for primary overvoltage protection of DC power rails and signal lines. It features 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.
For engineers reviewing the P6KE91AHE3/54 datasheet, P6KE91AHE3/54 pinout, P6KE91AHE3/54 application, or P6KE91AHE3/54 equivalent, key selection criteria include its AEC-Q101 qualification, low leakage (<1.0 µA at VWM), fast response time, and suitability for automotive body electronics, industrial I/O protection, and telecom interface surge suppression where robust 600 W transient handling is required.
Technical Context
This device operates as a silicon avalanche diode that remains high-impedance below VWM (77.8 V) and rapidly clamps transients above VBR (86.5–95.5 V) to limit downstream voltage stress. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance.
Designed for unidirectional DC protection, it exhibits 3.5 V forward voltage at 50 A (per spec note), 20 °C/W junction-to-lead thermal resistance, and operates across –55 °C to +175 °C junction temperature range - enabling use in under-hood automotive and high-temperature industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 86.5 V / 95.5 V at 1.0 mA - defines precise voltage threshold for avalanche conduction onset |
| VWM | 77.8 V - maximum continuous reverse working voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 125 V at 4.8 A - clamped voltage during 600 W 10/1000 µs transient, limiting stress on protected ICs |
| PPPM | 600 W - peak pulse power handling capability per standard 10/1000 µs waveform |
| IFSM | 100 A - non-repetitive surge current rating (8.3 ms half-sine), supports fuse coordination |
| TJ max | +175 °C - enables operation in high-temperature environments without derating penalties |
| RθJL | 20 °C/W - low thermal resistance allows efficient heat transfer to PCB copper or lead frame |
Pinout & Package
Package: DO-15 (DO-204AC), axial-leaded, epoxy-molded, RoHS-compliant, AEC-Q101 qualified. Cathode indicated by color band on case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration |
| Cathode | Avalanche clamping terminal | Connected to protected line (e.g., 24 V rail or RS-485 bus); color band identifies this end |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable, repeatable breakdown voltage and long-term reliability under repeated surge stress |
| 600 W peak pulse power (10/1000 µs) | Provides robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3/4 surges |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including body control modules and sensor interfaces |
| Low clamping ratio (VC/VBR ≈ 1.31) | Minimizes voltage overshoot during clamping, reducing risk of latch-up or damage to downstream logic |
| Matte tin-plated leads | Guarantees solderability per J-STD-002 and JESD 22-B102, with JESD 201 Class 2 whisker resistance |
Applications
| Automotive Body Electronics | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and door module microcontrollers from load dump and inductive switching transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Primary unidirectional TVS placed between LIN line and ground, clamping transients within 1 ns to prevent IC latch-up or ESD failure. Use Value: With VC = 125 V at 4.8 A, P6KE91AHE3/54 limits voltage seen by 3.3 V/5 V transceivers to safe levels during ISO 7637-2 Pulse 5a (75 V/300 ms). | Use Scenario: Safeguarding 24 V digital input channels on programmable logic controllers exposed to field wiring surges and relay coil kickback. IC Role / Device Role / Timing Role: Standoff protector on each input channel, operating at 77.8 V VWM to tolerate normal 24 V ±20 % variation while clamping >100 V transients. Use Value: 600 W rating and 100 A IFSM enable coordination with 1 A fast-blow fuses, ensuring fail-safe short-circuit behavior during catastrophic overvoltage events. |
| Telecom Interface Protection | Power Supply Input Stage |
Use Scenario: Shielding RS-485 transceiver pins from lightning-induced surges on outdoor data links in security or building automation systems. IC Role / Device Role / Timing Role: Unidirectional clamp on A/B differential pair referenced to local ground, leveraging fast avalanche response to suppress sub-ns transients. Use Value: Low 1.0 µA leakage at VWM prevents signal integrity degradation on high-impedance bus lines, while 125 V clamping protects 5 V tolerant transceivers. | Use Scenario: Secondary overvoltage protection on 48 V DC input of industrial power supplies after primary MOV-based protection. IC Role / Device Role / Timing Role: Precision clamping element downstream of bulk filtering, activated only when MOV let-through exceeds 91 V. Use Value: Tight VBR tolerance (±5 %) and low thermal drift (0.106 %/°C) ensure predictable activation timing and consistent clamping across temperature. |
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, same 600 W rating but higher VC (129 V), lower IPPM (4.7 A) | Surface-mount alternative requiring PCB redesign; better thermal performance in forced-air environments | Select SMBJ90A when board space is constrained and reflow assembly is preferred over through-hole |
| 1.5KE91A | Same DO-15 package, identical VBR/VWM/VC, but commercial-grade (E3 suffix), not AEC-Q101 qualified | Lacks automotive qualification; suitable for cost-sensitive industrial/commercial designs without automotive compliance requirements | Choose 1.5KE91A for non-automotive applications where AEC-Q101 is not mandated and BOM cost reduction is critical |
Compared with SMBJ90A and 1.5KE91A, P6KE91AHE3/54 uniquely combines AEC-Q101 qualification, axial DO-15 form factor, and tight 0.106 %/°C VBR temperature coefficient - making it optimal for automotive and high-reliability industrial through-hole implementations where qualification and thermal stability are mandatory.
Availability
P6KE91AHE3/54 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O protection, and telecom interface surge suppression requiring stable component supply, long-lifecycle support, and AEC-Q101 compliance.
Supply support for P6KE91AHE3/54 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and automotive-grade qualification.
The P6KE series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for cost-effective, high-energy transient suppression in DC power and signal line applications across automotive, industrial, and telecom markets.
FAQ
What is the breakdown voltage tolerance of P6KE91AHE3/54?
The P6KE91AHE3/54 has a specified breakdown voltage range of 86.5 V to 95.5 V at 1.0 mA test current, representing a ±5 % tolerance around the nominal 91 V rating. This tight tolerance ensures predictable clamping onset across production lots and temperature ranges, critical for designs requiring precise overvoltage thresholds.
Is P6KE91AHE3/54 suitable for automotive applications?
Yes, P6KE91AHE3/54 is AEC-Q101 qualified (denoted by HE3 suffix) and rated for operation from –55 °C to +175 °C. Its glass-passivated junction, 100 A surge rating, and validated performance under repetitive transient stress make it appropriate for automotive body electronics, sensor interfaces, and infotainment power rails.
What does the "HE3/54" suffix mean in P6KE91AHE3/54?
The "HE3" suffix indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance; "54" denotes the preferred package code for 13-inch paper tape and reel packaging with 4000 units per reel. This ordering format ensures traceable, automotive-grade supply chain compliance.
How does P6KE91AHE3/54 compare to bidirectional TVS diodes like P6KE91CA?
P6KE91AHE3/54 is unidirectional and intended for DC line protection with polarity-sensitive placement (cathode to protected line). In contrast, P6KE91CA is bidirectional, used for AC or differential signal protection without polarity constraints. Their VBR, VC, and PPPM ratings differ slightly due to internal structure - P6KE91AHE3/54 offers tighter VBR control and lower leakage for DC applications.
What is the maximum clamping voltage of P6KE91AHE3/54 under surge conditions?
The maximum clamping voltage (VC) of P6KE91AHE3/54 is 125 V at 4.8 A peak pulse current (IPPM) using the standardized 10/1000 µs waveform. This value represents the worst-case voltage imposed on protected circuitry during a full-rated 600 W transient event, directly determining the safety margin for downstream components.
P6KE91AHE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 77.8V
- Voltage - Breakdown (Min):
- 86.5V
- Voltage - Clamping (Max) @ Ipp:
- 125V
- Current - Peak Pulse (10/1000µs):
- 4.8A
- 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)
P6KE91AHE3/54 FAQ
1.How can I place an order for P6KE91AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE91AHE3/54 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 P6KE91AHE3/54 reliable?
The price and inventory of P6KE91AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE91AHE3/54 is usually 5 days.
3.What payment methods are accepted for P6KE91AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE91AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE91AHE3/54?
P6KE91AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE91AHE3/54 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 P6KE91AHE3/54?
For technical support, including P6KE91AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE91AHE3/54 requirements.
6.How does Aetrix verify that P6KE91AHE3/54 is sourced from the original manufacturer or authorized distributors?
All P6KE91AHE3/54 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 P6KE91AHE3/54 meets industry standards.
7.What is the process for return or replacement of P6KE91AHE3/54?
All P6KE91AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE91AHE3/54, 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 P6KE91AHE3/54 part is unused and in its original packaging.
Return procedure for P6KE91AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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