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Taiwan Semiconductor Corporation P6KE9.1C
- Part No.:
- P6KE9.1C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE9.1C.pdf
- Description:
- 600W, 9.1V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,416
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Product details
Overview
P6KE9.1C 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 9.1V, maximum clamping voltage of 13.8V at 50A peak surge current, and stand-off voltage of 7.37V - enabling robust ESD and lightning-induced transient protection in automotive and industrial control circuits.
For engineers reviewing the P6KE9.1C datasheet, P6KE9.1C pinout, P6KE9.1C application, or P6KE9.1C equivalent, key selection criteria include its DO-15 package compatibility, 13.8V clamping performance under 10/1000μs surge, low dynamic impedance, sub-1ps response time, and AEC-Q101 qualification status for automotive-grade reliability.
Technical Context
The P6KE9.1C operates as a unidirectional avalanche diode with precise breakdown voltage range of 8.19–10.00V at 1mA test current. Its clamping action begins at 7.37V (VWM) and limits transients to ≤13.8V at 50A (IPP), delivering 600W peak pulse power per 10/1000μs waveform. Junction temperature rating extends to +175°C, supporting operation in under-hood automotive environments.
It exhibits <1μA reverse leakage above 10V and a VBR temperature coefficient of 0.068%/°C - ensuring stable clamping across thermal gradients. The device uses a single-die DO-204AC (DO-15) package with cathode band polarity marking and pure tin-plated leads compliant with J-STD-002 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 7.37 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 8.19–10.00 V at 1 mA - Confirmed avalanche initiation range; ensures reliable turn-on during fast transients |
| VC @ IPP (Clamping Voltage) | 13.8 V at 50 A - Peak voltage seen by protected circuit during 600W surge; determines downstream component stress |
| PPK (Peak Pulse Power) | 600 W - Surge energy handling capability per 10/1000μs waveform; meets IEC 61000-4-5 Level 4 requirements |
| IR (Reverse Leakage) | <1 μA at 7.37 V - Minimal standby power loss and signal integrity impact in high-impedance circuits |
| TJMAX | +175 °C - Enables placement near heat sources (e.g., power MOSFETs, engine ECUs) without derating |
Pinout & Package
Package: DO-204AC (DO-15), axial leaded, epoxy-molded case meeting UL 94V-0 flammability rating. Cathode identified by band marking; anode and cathode leads are pure tin-plated for solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Current entry point in forward bias; connected to system ground or low-side reference | Provides low-impedance path to ground during transient events; must be routed with minimal inductance |
| Cathode (banded end) | Protected line connection; reverse-biased during normal operation | Connected directly to the node requiring protection (e.g., MCU supply rail, sensor input); clamps when voltage exceeds VWM |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS power domains |
| 600W surge capability | Withstands 10/1000μs surges up to 50A without degradation - suitable for ISO 7637-2 Pulse 1/2a/5a compliance |
| Sub-1ps response time | Turns on faster than most microsecond-scale transients - critical for protecting high-speed CAN/LIN interfaces |
| Low dynamic impedance | Ensures minimal voltage overshoot during clamping; maintains tight VC tolerance across production lot |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12V battery-supplied ECU power input subjected to load dump and jump-start transients. IC Role / Device Role / Timing Role: Primary clamping element placed upstream of LDO regulators and microcontrollers. Use Value: Limits voltage to ≤13.8V during 600W surges, preventing latch-up or permanent damage to downstream 5V/3.3V logic. |
Use Scenario: 4–20mA current loop transmitter exposed to ESD events and cable discharge. IC Role / Device Role / Timing Role: Bidirectional-capable TVS (P6KE9.1C variant used in unidirectional configuration) shunting transients at analog front-end inputs. Use Value: Clamps fast ESD pulses (<1ns rise) before they reach precision op-amps or ADCs, preserving measurement accuracy. |
| Lighting System Surge Suppression | Motor Drive Control Signal Protection |
Use Scenario: LED driver board in commercial lighting fixture experiencing induced surges from nearby AC mains switching. IC Role / Device Role / Timing Role: Standoff-rated TVS on 24V DC bus feeding constant-current LED drivers. Use Value: Absorbs repetitive 10/1000μs transients up to 600W without parameter shift, extending system lifetime. |
Use Scenario: PWM gate drive signals routed near high-di/dt motor windings in BLDC inverters. IC Role / Device Role / Timing Role: Unidirectional clamping on isolated gate driver outputs to protect level-shifting ICs. Use Value: Prevents false triggering or oxide breakdown in SiC/GaN gate drivers via sub-13.8V clamping during inductive kickback. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ9.0A | Same DO-214AC package; 9.0V nominal, 14.4V clamping at 43.5A; 400W rating | Lower power rating suits cost-sensitive consumer applications; not AEC-Q101 qualified | Select when automotive qualification is unnecessary and PCB space allows SMA footprint |
| ON Semiconductor 1.5KE9.1C | Same DO-204AC package; identical 9.1V nominal, 13.8V clamping at 50A; 600W rating; AEC-Q101 available | Direct functional match but different manufacturer traceability and screening flow | Choose for dual-sourcing in Tier-1 automotive programs requiring second-source validation |
Compared with P6KE9.1C, SMAJ9.0A offers lower surge capacity and no automotive qualification, while 1.5KE9.1C matches all key electrical and mechanical specs - making it the preferred alternative where supply chain diversification is required without design change.
Availability
P6KE9.1C is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and LED lighting applications requiring stable component supply and long-term lifecycle support.
Supply support for P6KE9.1C 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and thyristors for industrial and automotive markets.
The P6KE series was developed specifically for high-reliability transient suppression in harsh environments - emphasizing AEC-Q101 qualification, wide temperature operation, and repeatable clamping performance across voltage grades.
FAQ
What is the clamping voltage of P6KE9.1C and how is it measured?
The P6KE9.1C has a maximum clamping voltage (VC) of 13.8 V at 50 A peak pulse current (IPP), tested using the standard 10/1000 μs double-exponential surge waveform per IEC 61000-4-5. This value represents the highest voltage the protected circuit will experience during a full-power transient event, and is guaranteed across the full operating temperature range.
Is P6KE9.1C AEC-Q101 qualified?
No - P6KE9.1C is not AEC-Q101 qualified. Per TSC's ordering information, AEC-Q101 qualification applies only to parts marked with the "H" suffix (e.g., P6KE9.1CH) and excludes variants from P6KE6V8A through P6KE9V1A. The standard P6KE9.1C is intended for industrial and commercial applications where automotive qualification is not required.
What is the difference between P6KE9.1C and P6KE9.1CA?
P6KE9.1C is unidirectional, while P6KE9.1CA is bidirectional - meaning the latter clamps transients of either polarity and has symmetrical breakdown characteristics. The "C" suffix denotes unidirectional configuration with cathode band marking; "CA" indicates bidirectional operation with no polarity marking. Electrical parameters differ: P6KE9.1CA has VBR = 8.19–10.00 V in both directions and VC = 13.8 V at ±50 A.
Can P6KE9.1C replace P6KE9.1A in a design?
Yes - P6KE9.1C and P6KE9.1A share identical nominal voltage (9.1 V), clamping voltage (13.8 V), and surge rating (600 W), but differ in breakdown voltage tolerance: P6KE9.1C has VBR = 8.19–10.00 V at 1 mA, while P6KE9.1A tightens this to 8.65–9.55 V. Use P6KE9.1C where wider VBR spread is acceptable; choose P6KE9.1A for tighter clamping consistency in precision circuits.
What is the maximum junction temperature rating for P6KE9.1C?
The P6KE9.1C has a maximum junction temperature (TJMAX) of +175°C, verified per absolute maximum ratings. This enables reliable operation in high-ambient environments such as engine compartments, industrial motor drives, and enclosed LED luminaires - provided PCB thermal relief (e.g., copper pour, thermal vias) supports adequate heat dissipation during repetitive surge events.
P6KE9.1C 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:
- -
- 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):
- 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)
P6KE9.1C FAQ
1.How can I place an order for P6KE9.1C through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE9.1C 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 reliable?
The price and inventory of P6KE9.1C 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 is usually 5 days.
3.What payment methods are accepted for P6KE9.1C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE9.1C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE9.1C?
P6KE9.1C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE9.1C 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?
For technical support, including P6KE9.1C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE9.1C requirements.
6.How does Aetrix verify that P6KE9.1C is sourced from the original manufacturer or authorized distributors?
All P6KE9.1C 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 meets industry standards.
7.What is the process for return or replacement of P6KE9.1C?
All P6KE9.1C units undergo pre-shipment inspection (PSI). If there is an issue with P6KE9.1C, 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 part is unused and in its original packaging.
Return procedure for P6KE9.1C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE9.1C Tags
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