My Inquiry
My Account
Taiwan Semiconductor Corporation P6KE9.1H
- Part No.:
- P6KE9.1H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE9.1H.pdf
- Description:
- 600W, 9.1V, UNIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,393
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6KE9.1H 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 reliable protection of 5V–9V logic interfaces and automotive control circuits against ESD and inductive switching transients.
For engineers reviewing the P6KE9.1H datasheet, P6KE9.1H pinout, P6KE9.1H application, or P6KE9.1H equivalent, key selection criteria include its AEC-Q101 qualification, DO-204AC (DO-15) package compatibility with legacy through-hole layouts, low dynamic impedance (<0.3Ω typical), sub-1ps response time from 0V to VBR, and guaranteed <1μA reverse leakage above 10V.
Technical Context
The P6KE9.1H operates as a silicon avalanche diode with single-die construction in a DO-204AC package, optimized for unidirectional clamping only. Its junction temperature range spans −55°C to +175°C, and it sustains non-repetitive 10/1000μs surges up to 600W without degradation when mounted on 5×5 mm copper pads per terminal.
Electrical behavior follows ANSI/IEEE C62.35 standards: breakdown voltage (VBR) is measured at 1mA test current with ±5% tolerance (8.19–10.00V), and clamping voltage (VC) is specified at 50A peak pulse current (IPP), delivering predictable overvoltage limiting under fast-rising transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 7.37 V - Maximum continuous reverse voltage before significant leakage; ensures stable operation on 5V/9V supply rails without false triggering |
| VBR (Min/Max) | 8.19 V / 10.00 V at 1 mA - Tight 9.1V nominal breakdown enables precise clamping margin above system operating voltage |
| VC @ IPP=50A | 13.8 V - Peak clamped voltage during 10/1000μs surge; limits downstream IC stress to safe levels below 15V absolute max ratings |
| IPP (Max) | 50 A - Peak surge current capacity at rated clamping voltage; supports robust protection against ISO 7637-2 Pulse 1/2a/5a events |
| PPK | 600 W - Non-repetitive peak pulse power rating at 10/1000μs waveform; defines energy-handling capability for transient suppression |
| TJMAX | +175 °C - Maximum junction temperature; allows operation in under-hood automotive environments and high-ambient industrial settings |
| Leakage @ VWM | <1 μA - Ultra-low reverse leakage preserves battery life in always-on systems and avoids false resets in low-power microcontrollers |
Pinout & Package
Package: DO-204AC (DO-15), axial leaded, epoxy-molded case with cathode band marking. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Current sink during forward conduction; connected to ground or low-impedance return path | Provides low-resistance discharge path for transient energy into common reference plane; polarity must match PCB silkscreen |
| Cathode (banded end) | Clamping node; connected to protected line (e.g., VIN, signal input) | Acts as voltage-controlled switch - avalanches when line exceeds VBR, shunting surge current away from sensitive IC inputs |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and mechanical shock - suitable for engine control, body electronics, and ADAS power domains |
| 600W surge rating (10/1000μs) | Handles high-energy transients from load dump or inductive kickback without parametric shift or catastrophic failure |
| Clamping voltage ≤13.8V @ 50A | Ensures protected ICs remain within safe operating area during worst-case surge events - critical for 12V automotive MCU I/O protection |
| Response time <1.0 ps (0V→VBR) | Activates faster than most ESD pulses and microsecond-scale switching noise, preventing voltage overshoot from reaching downstream circuitry |
| UL Recognized (E326243) | Meets safety requirements for end-equipment certification in industrial and consumer applications requiring regulatory compliance |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: 12V battery-fed ECUs exposed to ISO 7637-2 Pulse 1 (−150V/50Ω) and Pulse 2a (+100V/2Ω) transients. IC Role / Device Role: Primary clamping device placed between fused VBAT and LDO input, upstream of voltage regulators. Use Value: Limits rail voltage to ≤13.8V during surge, preventing LDO dropout or internal FET damage while maintaining system uptime. |
Use Scenario: 4–20mA current-loop transmitters interfacing with PLC analog inputs in factory automation. IC Role / Device Role: Reverse-polarity and surge protector on loop-powered sensor output line. Use Value: Blocks >100V transients induced by nearby motor drives while adding <1μA leakage that avoids loop-current error. |
| LED Driver Input Protection | USB Port ESD Suppression |
|
Use Scenario: Constant-current LED drivers powered from 9–12V DC supplies in outdoor signage subject to lightning-induced surges. IC Role / Device Role: Unidirectional TVS on driver VIN pin to clamp inductive spikes from relay switching or cable disconnects. Use Value: Prevents gate oxide rupture in internal MOSFETs by capping voltage at 13.8V - extends driver MTBF in harsh environments. |
Use Scenario: USB 2.0 host port on embedded industrial controller exposed to human-body-model (HBM) ESD events. IC Role / Device Role: Secondary-level protection on VUSB line, downstream of integrated USB transceiver ESD cells. Use Value: Absorbs residual 8kV contact ESD energy after on-die protection, eliminating latch-up risk in USB PHY without degrading signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0A | Lower peak power (600W same), but SMB package (DO-214AA); VC = 14.4V @ 38.9A; tighter VBR tolerance (±5%) | SMT-only layout; unsuitable for through-hole retrofits or high-vibration mechanical mounting | Choose SMBJ9.0A for new SMT designs prioritizing board space savings and automated assembly. |
| P6KE9.1 | Same electrical specs except non-AEC-Q101 qualified; identical DO-204AC package and pinout | Lacks automotive qualification testing - not approved for under-hood or safety-critical vehicle subsystems | Choose P6KE9.1 only for cost-sensitive industrial or consumer applications where AEC-Q101 is not mandated. |
Compared with P6KE9.1H, SMBJ9.0A offers surface-mount compatibility but requires PCB redesign, while P6KE9.1 retains identical form-factor and performance yet omits automotive reliability validation - making P6KE9.1H the sole option for drop-in AEC-Q101-compliant replacement in legacy through-hole systems.
Availability
P6KE9.1H is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, LED driver inputs, and USB port protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for P6KE9.1H 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 MOSFETs for automotive, industrial, and consumer markets.
The P6KE series was engineered specifically for high-reliability transient suppression in automotive power distribution networks and industrial control systems - emphasizing rugged packaging, AEC-Q101 compliance, and repeatable clamping performance under thermal stress.
FAQ
What is the AEC-Q101 qualification status of P6KE9.1H?
The P6KE9.1H is explicitly AEC-Q101 qualified per the manufacturer's ordering code definition ("H" suffix denotes AEC-Q101 qualification for P6KE6.8–P6KE440, excluding P6KE6V8A–P6KE9V1A). This includes stress testing for temperature cycling, high-temperature reverse bias, and mechanical shock - confirming suitability for automotive under-hood and chassis applications.
How does P6KE9.1H differ from P6KE9.1A?
The P6KE9.1H and P6KE9.1A share identical electrical parameters (VBR: 8.65–9.55V, VC: 13.4V @ 50A, VWM: 7.78V), but P6KE9.1H adds AEC-Q101 qualification and uses green compound molding. P6KE9.1A is not AEC-Q101 certified and lacks automotive reliability validation - making P6KE9.1H the only choice for automotive-grade deployments.
Can P6KE9.1H be used in bidirectional configurations?
No - P6KE9.1H is a unidirectional TVS diode with cathode band marking and specified only for single-polarity clamping. Bidirectional operation requires CA-suffix parts (e.g., P6KE9.1CA) or symmetric dual-diode configurations. Using P6KE9.1H in reverse-biased AC applications risks permanent breakdown due to lack of reverse avalanche rating.
What is the maximum allowable ambient temperature for continuous operation of P6KE9.1H?
P6KE9.1H supports continuous operation up to +75°C ambient when mounted on 5×5 mm copper pads per terminal (per datasheet derating curve Fig.2). Above 75°C, its steady-state power dissipation (PD) must be linearly reduced to maintain TJ ≤ +175°C - e.g., at +100°C ambient, PD is derated to ~3.3W.
Is P6KE9.1H RoHS and halogen-free compliant?
Yes - P6KE9.1H meets RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21, with bromine and chlorine content <900 ppm each. The molding compound also satisfies UL 94V-0 flammability rating, supporting safety-certified end equipment design.
P6KE9.1H 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:
- -
- 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)
P6KE9.1H FAQ
1.How can I place an order for P6KE9.1H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE9.1H 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 P6KE9.1H reliable?
The price and inventory of P6KE9.1H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE9.1H is usually 5 days.
3.What payment methods are accepted for P6KE9.1H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE9.1H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE9.1H?
P6KE9.1H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE9.1H 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 P6KE9.1H?
For technical support, including P6KE9.1H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE9.1H requirements.
6.How does Aetrix verify that P6KE9.1H is sourced from the original manufacturer or authorized distributors?
All P6KE9.1H 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 P6KE9.1H meets industry standards.
7.What is the process for return or replacement of P6KE9.1H?
All P6KE9.1H units undergo pre-shipment inspection (PSI). If there is an issue with P6KE9.1H, 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 P6KE9.1H part is unused and in its original packaging.
Return procedure for P6KE9.1H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE9.1H Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
