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Vishay General Semiconductor - Diodes Division P6KE9.1CAHE3/54
- Part No.:
- P6KE9.1CAHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE9.1CAHE3/54.pdf
- Description:
- TVS DIODE 7.78VWM 13.4VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,107
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Product details
Overview
P6KE9.1CAHE3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-15 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 stand-off voltage (VWM), 13.4 V maximum clamping voltage (VC) at 44.8 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the P6KE9.1CAHE3/54 datasheet, P6KE9.1CAHE3/54 pinout, P6KE9.1CAHE3/54 application, or P6KE9.1CAHE3/54 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, DO-15 mechanical compatibility, low leakage (<50 μA at VWM), and thermal resistance (RθJL = 20 °C/W) for reliable surge handling in space-constrained PCB layouts.
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 switches to low-impedance conduction within <1 ns when transient voltage exceeds VBR. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance across repeated 10/1000 μs pulses at 0.01% duty cycle.
The bidirectional configuration enables symmetric clamping in AC-coupled or floating signal paths without polarity sensitivity. With a temperature coefficient of +0.068 %/°C on VBR, its breakdown voltage drift remains tightly controlled over -55 °C to +175 °C operating junction range - critical for under-hood automotive and industrial environments where thermal cycling is severe.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 8.65 V / 9.55 V at 1.0 mA - defines precise clamping onset threshold for bidirectional transients |
| VWM | 7.78 V - maximum continuous working voltage before leakage rises above 50 μA |
| VC @ IPPM | 13.4 V at 44.8 A - peak clamped voltage during 600 W transient, limiting stress on downstream ICs |
| PPPM | 600 W - surge energy absorption capacity per 10/1000 μs waveform, enabling robust ESD/Lightning protection |
| RθJL | 20 °C/W - low junction-to-lead thermal resistance supports sustained surge dissipation without thermal runaway |
| TJ max | +175 °C - extended junction temperature rating allows operation in high-ambient automotive engine compartments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance |
Pinout & Package
Package: DO-15 (DO-204AC), axial-leaded, molded epoxy case meeting UL 94 V-0 flammability rating; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. No polarity marking - bidirectional symmetry eliminates cathode/anode orientation concerns during placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | Either lead serves as input/output terminal - no directional bias required; identical clamping in both polarities |
| Lead 1 / Lead 2 | Current path to PCB copper pour or heatsink | Leads conduct surge current to board-level thermal mass; RθJL = 20 °C/W enables effective heat transfer |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure |
| 600 W peak pulse power (10/1000 μs) | Handles high-energy transients from inductive switching or lightning-induced surges without degradation |
| AEC-Q101 qualified | Validated for automotive applications including powertrain, body electronics, and ADAS sensor interfaces |
| Low clamping ratio (VC/VBR ≈ 1.40) | Minimizes overvoltage stress on protected ICs - critical for 3.3 V and 5 V logic supply rail protection |
| DO-15 footprint compatibility | Enables drop-in replacement for legacy TVS diodes in existing through-hole designs without layout change |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: 12 V battery line in engine control unit exposed to load dump (up to 60 V) and alternator ripple. IC Role / Device Role / Timing Role: Shunt clamping element placed upstream of LDO regulators and microcontrollers. Use Value: Limits transient voltage to ≤13.4 V, preventing latch-up or gate oxide damage in 5 V tolerant MCUs and CAN transceivers. |
Use Scenario: 4–20 mA current loop interface in PLC analog input module subjected to field wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: Bidirectional voltage clamp across signal terminals to suppress ±15 kV contact ESD per IEC 61000-4-2. Use Value: Maintains signal integrity below 7.78 V standby while clamping fast transients within 1 ns - preserving measurement accuracy. |
| Consumer USB Port Surge Protection | Telecom Line Card Transient Suppression |
|
Use Scenario: VBUS line in USB 2.0 host port encountering hot-plug induced overshoot and cable discharge events. IC Role / Device Role / Timing Role: Primary overvoltage clamp between VBUS and GND, coordinated with polymer PTC fuse. Use Value: Clamps 30 A surge to 13.4 V within nanoseconds, protecting USB controller PHY and maintaining enumeration compliance. |
Use Scenario: Tip/ring pair in DSL or POTS line card exposed to lightning-induced surges up to 1 kV. IC Role / Device Role / Timing Role: First-stage bidirectional protector before secondary MOV and gas discharge tube cascade. Use Value: Fast response (<1 ns) and low VC prevent follow-on conduction in downstream protectors, extending system surge lifetime. |
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 | Surface-mount SMB package; same VBR (8.5–9.4 V), slightly higher VC (15.4 V @ 38.9 A) | Requires PCB redesign for SMT assembly; better suited for high-density consumer boards | Select when automated assembly and board space savings outweigh through-hole reliability advantages |
| 1.5KE9.1CA | Higher PPPM (1500 W); larger DO-201 package; VBR (8.65–9.55 V) and VC (13.4 V) identical | Used where single-event surge energy exceeds 600 W - e.g., telecom central office equipment | Choose for mission-critical infrastructure needing higher single-pulse margin without changing circuit topology |
Compared with SMBJ9.0CA and 1.5KE9.1CA, the P6KE9.1CAHE3/54 delivers optimal balance of AEC-Q101 qualification, DO-15 manufacturability, and 600 W surge capability - making it preferred for cost-sensitive, thermally constrained automotive and industrial through-hole designs requiring proven field reliability.
Availability
P6KE9.1CAHE3/54 is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface, and consumer USB protection requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6KE9.1CAHE3/54 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, rectifiers, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6KE series targets cost-effective, high-surge-capability transient protection for automotive, industrial, and consumer electronics - engineered for rapid response, stable clamping, and AEC-Q101 compliance in harsh environments.
FAQ
What is the breakdown voltage tolerance of P6KE9.1CAHE3/54?
The P6KE9.1CAHE3/54 has a specified breakdown voltage range of 8.65 V to 9.55 V at 1.0 mA test current, corresponding to ±5% tolerance around the nominal 9.1 V rating. This tight VBR window ensures consistent clamping behavior across production lots and temperature extremes, directly supporting design margin calculations for protected circuits.
Is P6KE9.1CAHE3/54 suitable for automotive applications?
Yes, P6KE9.1CAHE3/54 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its +175 °C maximum junction temperature, glass-passivated junction, and validation across temperature cycling, high-temperature reverse bias, and surge endurance tests confirm suitability for engine control units, body modules, and ADAS sensor interfaces.
How does the bidirectional configuration of P6KE9.1CAHE3/54 affect circuit design?
The bidirectional nature of P6KE9.1CAHE3/54 eliminates polarity constraints - either lead may connect to signal or power line without regard to DC bias direction. This simplifies layout in AC-coupled paths (e.g., RS-485, CAN bus, audio lines) and avoids risk of incorrect orientation during manual assembly, unlike unidirectional TVS diodes that require strict cathode alignment.
What is the maximum clamping voltage of P6KE9.1CAHE3/54 under surge conditions?
The P6KE9.1CAHE3/54 clamps to a maximum of 13.4 V when subjected to its rated 44.8 A peak pulse current (10/1000 μs waveform). This VC value is guaranteed across temperature and lot variations, enabling accurate worst-case overvoltage analysis for downstream components such as 5 V microcontrollers or USB PHYs.
Does P6KE9.1CAHE3/54 require a heatsink for standard operation?
No external heatsink is required for P6KE9.1CAHE3/54 under typical transient conditions due to its low thermal resistance (RθJL = 20 °C/W) and short-duration surge profile. However, PCB copper area connected to both leads acts as an effective thermal mass; minimum 100 mm² of 2 oz copper per lead is recommended to sustain repetitive surges without exceeding +175 °C junction limit.
P6KE9.1CAHE3/54 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:
- -
- 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):
- 44.8A
- 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)
P6KE9.1CAHE3/54 FAQ
1.How can I place an order for P6KE9.1CAHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE9.1CAHE3/54 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 P6KE9.1CAHE3/54 reliable?
The price and inventory of P6KE9.1CAHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE9.1CAHE3/54 is usually 5 days.
3.What payment methods are accepted for P6KE9.1CAHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE9.1CAHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE9.1CAHE3/54?
P6KE9.1CAHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE9.1CAHE3/54 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 P6KE9.1CAHE3/54?
For technical support, including P6KE9.1CAHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE9.1CAHE3/54 requirements.
6.How does Aetrix verify that P6KE9.1CAHE3/54 is sourced from the original manufacturer or authorized distributors?
All P6KE9.1CAHE3/54 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 P6KE9.1CAHE3/54 meets industry standards.
7.What is the process for return or replacement of P6KE9.1CAHE3/54?
All P6KE9.1CAHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE9.1CAHE3/54, 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 P6KE9.1CAHE3/54 part is unused and in its original packaging.
Return procedure for P6KE9.1CAHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE9.1CAHE3/54 Tags
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