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Diodes Incorporated P6KE9V1A-T
- Part No.:
- P6KE9V1A-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE9V1A-T.pdf
- Description:
- TVS DIODE 7.78VWM 13.4VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:2,627
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Product details
Overview
P6KE9V1A-T from Diodes Incorporated is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 7.78V reverse standoff voltage (VRWM), 8.65V minimum breakdown voltage (VBR), 13.4V maximum clamping voltage (VC) at 45A peak pulse current, and DO-15 package with glass-passivated junction - used in automotive body control modules to clamp load-dump transients.
For engineers reviewing the P6KE9V1A-T datasheet, P6KE9V1A-T pinout, P6KE9V1A-T application, or P6KE9V1A-T equivalent, key selection criteria include clamping voltage margin relative to protected IC VCC, 1.0mA test current compliance, unidirectional polarity requirement, and DO-15 through-hole thermal derating above +25°C ambient.
Technical Context
This TVS operates as a voltage-clamped shunt protector: under normal bias it presents <50µA leakage at VRWM; during transient events exceeding VBR, it avalanches to limit voltage across the protected node to ≤13.4V. Its 1.0ms 600W pulse rating follows the standard 10/1000µs waveform definition per REA.
The device uses a glass-passivated silicon junction for stable breakdown characteristics and robust surge endurance. Thermal resistance from junction to ambient is 75°C/W, requiring PCB copper land area (40mm²) and lead length (9.5mm) management to sustain 5.0W steady-state dissipation at TL = +75°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W @ 1.0ms non-repetitive pulse - defines maximum transient energy absorption capability |
| Reverse Standoff Voltage | 7.78V - maximum continuous DC or RMS voltage before significant leakage begins |
| Breakdown Voltage | 8.65V min @ 1.0mA - guaranteed avalanche initiation threshold for reliable clamping onset |
| Clamping Voltage | 13.4V max @ 45A IPP - limits voltage seen by downstream circuitry during worst-case surge |
| Leakage Current | 50µA max @ 7.78V - ensures minimal power loss and signal integrity in standby operation |
| Package | DO-15 - industry-standard axial-leaded package with 0.4g mass and UL 94V-0 flammability rating |
Pinout & Package
DO-15 package: axial-leaded, molded plastic body (UL 94V-0), cathode band marking on unidirectional version. Leads are solderable per MIL-STD-202, Method 208; moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-voltage rail; establishes reference for clamping action |
| Cathode | Protected line input | Connected to line under protection; avalanche conduction occurs from cathode to anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| 600W peak pulse power rating | Enables robust protection against ISO 7637-2 Pulse 5a (load dump) in 12V automotive systems |
| Glass-passivated die construction | Ensures long-term stability of breakdown voltage and low parameter drift over temperature and life |
| Fast response time (<1ps) | Clamps transients before sensitive downstream ICs experience overstress |
| RoHS-compliant lead finish | Meets EU Directive 2011/65/EU with all applicable exemptions applied |
Applications
| Automotive Body Control Module | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting microcontroller supply inputs from battery load-dump spikes up to 35V in BCMs. IC Role / Device Role: Shunt clamping element placed between VBAT and GND, upstream of LDO regulator. Use Value: Limits transient voltage to 13.4V, preserving 5V/3.3V regulator input rating and preventing latch-up. | Use Scenario: Safeguarding 24V digital input channels against field-wiring induced surges in factory automation PLCs. IC Role / Device Role: Primary overvoltage clamp on dry-contact or sensor input lines before optocoupler or Schmitt trigger. Use Value: Absorbs 600W pulses without degradation, maintaining channel reliability across >100,000 switching cycles. |
| DC Power Supply Input Stage | Telecom Line Interface |
Use Scenario: Secondary surge protection on AC/DC adapter output rails feeding point-of-load converters. IC Role / Device Role: Back-to-back clamping stage after primary MOV, refining voltage limiting to ±10% tolerance. Use Value: Tight 7.78V–8.65V VBR window enables precise coordination with downstream OVP circuits. | Use Scenario: Overvoltage suppression on -48V telecom power feed lines exposed to lightning-induced surges. IC Role / Device Role: Unidirectional clamp referenced to system ground, handling negative-going transients only. Use Value: 50µA leakage at 7.78V prevents false triggering in high-impedance monitoring circuits. |
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 | Surface-mount SMB package; 9.0V VRWM; 14.4V VC @ 41.7A | Requires PCB rework for SMT assembly; lower thermal resistance (RθJA = 50°C/W) | Select when board space is constrained and automated assembly is required |
| P6KE9V1CA | Bidirectional variant; same VRWM/VBR/VC specs but symmetrical clamping for AC-coupled lines | Used where both positive and negative transients must be suppressed (e.g., RS-485 bus) | Select only if bidirectional protection is explicitly required by signal topology |
Compared with P6KE9V1CA and SMBJ9.0A, the P6KE9V1A-T provides optimal cost-performance balance for through-hole 12V DC rail protection, offering proven mechanical robustness in vibration-prone environments while maintaining identical electrical clamping behavior as its bidirectional sibling.
Availability
P6KE9V1A-T is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, DC power supply input stages, and telecom line interface designs requiring stable component supply and legacy through-hole compatibility.
Supply support for P6KE9V1A-T 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.
The P6KE series belongs to Diodes' transient voltage suppressor product line, engineered specifically for high-energy surge immunity in automotive, industrial, and telecom infrastructure applications where reliability under repetitive stress is critical.
FAQ
What is the meaning of the "-T" suffix in P6KE9V1A-T?
The "-T" suffix denotes tape-and-reel packaging: 4,000 units per 13-inch reel, optimized for automated through-hole insertion equipment. It does not affect electrical specifications or thermal performance. The base part number P6KE9V1A remains functionally identical; only packaging differs from bulk or ammo-pack options.
Is P6KE9V1A-T compliant with AEC-Q200 for automotive use?
No - P6KE9V1A-T is not AEC-Q200 qualified. While Diodes offers AEC-Q200 versions in other TVS families (e.g., DZxxQ series), this DO-15 device is intended for industrial and commercial applications. For automotive-grade alternatives, contact Diodes' automotive team directly to discuss PPAP-capable, IATF 16949-manufactured options.
Can P6KE9V1A-T be used in bidirectional signal lines like RS-232?
No - P6KE9V1A-T is unidirectional and will conduct continuously if reverse-biased beyond its forward voltage (~3.5V). For bidirectional data lines, use the P6KE9V1CA variant (identical clamping specs but symmetrical breakdown) or select a dedicated bidirectional TVS array such as the D3V3F4U5DP10-7.
How does thermal derating affect P6KE9V1A-T's 600W rating in real-world PCB layouts?
The 600W rating applies only at TA = +25°C with specified lead length (9.5mm) and copper land (40mm²). At +75°C ambient, peak pulse power drops to ~420W per the derating curve. Layouts with shorter leads or smaller copper reduce heat dissipation, further lowering usable surge capacity - always verify clamping performance under actual board thermal conditions.
P6KE9V1A-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.78V
- Voltage - Breakdown (Min):
- 8.65V
- Voltage - Clamping (Max) @ Ipp:
- 13.4V
- 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-15
P6KE9V1A-T FAQ
1.How can I place an order for P6KE9V1A-T through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE9V1A-T 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 P6KE9V1A-T reliable?
The price and inventory of P6KE9V1A-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE9V1A-T is usually 5 days.
3.What payment methods are accepted for P6KE9V1A-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE9V1A-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE9V1A-T?
P6KE9V1A-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE9V1A-T 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 P6KE9V1A-T?
For technical support, including P6KE9V1A-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE9V1A-T requirements.
6.How does Aetrix verify that P6KE9V1A-T is sourced from the original manufacturer or authorized distributors?
All P6KE9V1A-T 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 P6KE9V1A-T meets industry standards.
7.What is the process for return or replacement of P6KE9V1A-T?
All P6KE9V1A-T units undergo pre-shipment inspection (PSI). If there is an issue with P6KE9V1A-T, 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 P6KE9V1A-T part is unused and in its original packaging.
Return procedure for P6KE9V1A-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE9V1A-T Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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