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Taiwan Semiconductor Corporation P6KE9.1
- Part No.:
- P6KE9.1
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE9.1.pdf
- Description:
- 600W, 9.1V, UNIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,507
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Product details
Overview
P6KE9.1 from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary-side overvoltage clamping in DC power rails and signal lines. It features a nominal breakdown voltage of 9.1 V, a stand-off voltage of 7.37 V, clamps to ≤13.8 V at 50 A peak surge current, and delivers fast response (<1.0 ps from 0 V to VBR). It is widely used in automotive body electronics and industrial sensor interface protection.
For engineers reviewing the P6KE9.1 datasheet, P6KE9.1 pinout, P6KE9.1 application, or P6KE9.1 equivalent, key selection criteria include its 7.37 V working voltage, 13.8 V clamping limit at 50 A, DO-204AC (DO-15) axial package, unidirectional polarity, and AEC-Q101 qualification eligibility - all critical for robust ESD and lightning surge immunity in 12 V systems.
Technical Context
The P6KE9.1 operates as a silicon avalanche diode with unidirectional polarity and single-die construction. Its junction exhibits low dynamic impedance and typical reverse leakage <1 μA above 10 V, enabling precise voltage clamping without significant standby power loss.
It is rated for non-repetitive 10/1000 μs surge pulses up to 600 W and supports peak forward surge currents of 100 A (8.3 ms half-sine). Thermal operation spans −55 °C to +175 °C, with derating applied above 25 °C ambient per Fig.2 in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.37 V - Maximum continuous reverse operating voltage before clamping begins; sets safe margin below system rail (e.g., 9–12 V automotive). |
| VBR (min/max) | 8.19 V / 10.00 V - Breakdown occurs within this range at 1 mA test current; ensures reliable triggering across temperature and process variation. |
| VC @ IPP | 13.8 V @ 50 A - Clamping voltage during 10/1000 μs surge; limits downstream IC stress to safe levels under worst-case transients. |
| PPK | 600 W - Peak pulse power handling capability; defines energy absorption capacity for standardized lightning/ESD waveforms. |
| IR @ VWM | <1 μA - Ultra-low reverse leakage at stand-off voltage; avoids loading sensitive analog or low-power circuits. |
| TJMAX | +175 °C - Maximum junction temperature; enables use in under-hood automotive environments and high-ambient industrial enclosures. |
| Package | DO-204AC (DO-15) - Axial-leaded, through-hole package with UL 94V-0 molding compound and tin-plated leads compliant with J-STD-002 solderability. |
Pinout & Package
DO-204AC (DO-15) axial package with cathode band marking. Leads are pure tin-plated, solderable per J-STD-002. Polarity is unidirectional: banded end is cathode; anode is unmarked lead.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded lead) | Current entry terminal during forward conduction | Connected to ground or low-impedance return path; enables clamping when transient exceeds VWM. |
| Cathode (banded lead) | Current exit terminal during reverse-biased clamping | Connected to protected line (e.g., 12 V rail); avalanche conduction shunts surge current to ground when VIN > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W surge rating (10/1000 μs) | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity in 12 V supply lines without external series impedance. |
| Clamping voltage ≤13.8 V @ 50 A | Ensures protected ICs (e.g., CAN transceivers, microcontrollers) remain below absolute maximum ratings during transients. |
| Response time <1.0 ps (0 V → VBR) | Activates faster than most semiconductor switching events, preventing voltage overshoot before protection engages. |
| AEC-Q101 qualification option (P6KE9.1H) | Validated for automotive under-hood applications including engine control modules and lighting drivers. |
| RoHS & halogen-free (IEC 61249-2-21) | Meets global environmental compliance requirements for industrial and automotive OEM production. |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting LIN bus and 12 V power inputs in door module ECUs exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role: Primary overvoltage clamp on power input and communication lines. Use Value: Limits transient excursions to ≤13.8 V, preserving MCU and LIN transceiver integrity during 100 V/100 ms load dump events. |
Use Scenario: Shielding 4–20 mA current loop receivers and analog front-ends from EFT bursts and cable coupling noise. IC Role / Device Role: Low-leakage, high-speed clamping element placed directly at connector entry point. Use Value: Sub-1 μA leakage avoids offset errors in precision current sensing; 13.8 V clamping prevents op-amp rail saturation. |
| LED Driver Power Input Stage | Consumer Appliance Motor Control Board |
|
Use Scenario: Safeguarding constant-current LED driver ICs against inductive kickback from relay or MOSFET switching. IC Role / Device Role: Unidirectional TVS placed across input capacitor to absorb stored inductive energy. Use Value: 600 W rating handles repetitive 50–100 A spikes; DO-15 package allows direct mounting near high-di/dt nodes. |
Use Scenario: Suppressing commutation spikes on brushed DC motor H-bridge power rails in washing machine control boards. IC Role / Device Role: Rail-to-ground clamping device on 24 V supply feeding motor driver ICs. Use Value: 7.37 V stand-off accommodates 24 V nominal with margin; 13.8 V clamping protects gate drivers from latch-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse P6KE9.1A | Narrower VBR range (8.65–9.55 V), tighter tolerance; same DO-15 package and 600 W rating. | Better suited for designs requiring tighter clamping threshold consistency across temperature and lot variance. | Select P6KE9.1A when ±5% VBR tolerance is required; otherwise P6KE9.1 offers broader process margin. |
| ON Semiconductor 1.5KE9.1 | Same VWM/VBR/VC specs but rated for 1.5 kW peak power; larger DO-201AD package. | Higher surge margin for infrequent, high-energy events (e.g., outdoor equipment); requires PCB layout change. | Choose 1.5KE9.1 only if system-level testing reveals 600 W insufficient; avoid for space-constrained 12 V modules. |
Compared with P6KE9.1, the P6KE9.1A provides tighter VBR control for precision clamping, while the 1.5KE9.1 trades footprint for higher surge headroom - neither is pin-compatible, and both require validation of thermal dissipation and board layout impact.
Availability
P6KE9.1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, LED driver protection, and appliance motor control applications requiring stable component supply and long-term manufacturability.
Supply support for P6KE9.1 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving automotive, industrial, and consumer markets since 1979.
The P6KE Series belongs to TSC's transient voltage suppression portfolio, engineered specifically for cost-effective, high-reliability overvoltage protection in 12 V–440 V DC systems with emphasis on AEC-Q101 readiness and RoHS compliance.
FAQ
What is the maximum clamping voltage of the P6KE9.1 under standard surge conditions?
The P6KE9.1 clamps to a maximum of 13.8 V when subjected to a 10/1000 μs surge waveform at 50 A peak current. This value is guaranteed across temperature and process variation per the datasheet's electrical specifications table and is critical for ensuring downstream ICs remain within their absolute maximum voltage ratings during transient events. The P6KE9.1 achieves this with low dynamic impedance and fast avalanche response.
Is the P6KE9.1 suitable for automotive applications?
Yes - the P6KE9.1 is eligible for AEC-Q101 qualification (as P6KE9.1H variant), making it suitable for automotive body electronics, lighting modules, and sensor interfaces. While the base P6KE9.1 is not pre-qualified, its construction, materials (halogen-free, RoHS), and thermal rating (−55 °C to +175 °C) align with automotive reliability requirements. For production-critical use, specify P6KE9.1H to ensure certified qualification.
How does the P6KE9.1 differ from the P6KE9.1A variant?
The P6KE9.1A has a tighter breakdown voltage range (8.65–9.55 V vs. 8.19–10.00 V for P6KE9.1) and identical clamping performance (13.4 V @ 50 A). Both share the same DO-204AC package, 600 W rating, and thermal specs. The P6KE9.1A is preferred where consistent turn-on behavior is needed across temperature and manufacturing lots, while the P6KE9.1 offers greater process margin for cost-sensitive, high-volume applications.
What is the reverse leakage current of the P6KE9.1 at its stand-off voltage?
At its 7.37 V stand-off voltage (VWM), the P6KE9.1 exhibits a maximum reverse leakage current of 50 μA - significantly lower than many competing TVS diodes. This low leakage minimizes parasitic loading on sensitive analog circuits and battery-powered systems. The datasheet confirms typical values are well below 1 μA above 10 V, reinforcing its suitability for precision signal path protection.
Can the P6KE9.1 be used in bidirectional configurations?
No - the P6KE9.1 is strictly unidirectional. Its cathode band marking and electrical specification table confirm single-polarity operation. For bidirectional protection, select the CA-suffixed variant (e.g., P6KE9.1CA) or a symmetric bipolar TVS. Using P6KE9.1 in reverse-biased AC or differential signal paths will result in forward conduction and potential failure; always verify polarity alignment in schematic and layout for P6KE9.1.
P6KE9.1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- P6KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.37V
- Voltage - Breakdown (Min):
- 8.19V
- Voltage - Clamping (Max) @ Ipp:
- 13.8V
- Current - Peak Pulse (10/1000µs):
- 45A
- 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)
P6KE9.1 FAQ
1.How can I place an order for P6KE9.1 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE9.1 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 P6KE9.1 reliable?
The price and inventory of P6KE9.1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE9.1 is usually 5 days.
3.What payment methods are accepted for P6KE9.1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE9.1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE9.1?
P6KE9.1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE9.1 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 P6KE9.1?
For technical support, including P6KE9.1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE9.1 requirements.
6.How does Aetrix verify that P6KE9.1 is sourced from the original manufacturer or authorized distributors?
All P6KE9.1 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 P6KE9.1 meets industry standards.
7.What is the process for return or replacement of P6KE9.1?
All P6KE9.1 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE9.1, 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 P6KE9.1 part is unused and in its original packaging.
Return procedure for P6KE9.1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE9.1 Tags
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