My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6KE43CA/54
- Part No.:
- P6KE43CA/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE43CA/54.pdf
- Description:
- TVS DIODE 36.8VWM 59.3VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,279
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6KE43CA from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in signal and power lines. It features a 43 V breakdown voltage (VBR min/max = 40.9–45.2 V at 1.0 mA), 36.8 V stand-off voltage (VWM), clamps to ≤59.3 V at 10.1 A peak pulse current (10/1000 µs), and delivers 600 W peak pulse power. It is used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial control systems against ESD and inductive switching transients.
For engineers reviewing the P6KE43CA datasheet, P6KE43CA pinout, P6KE43CA application, or P6KE43CA equivalent, this device serves as a standardized, AEC-Q101-qualified, DO-15 packaged TVS for bi-directional transient suppression where low clamping voltage, fast response (<1 ns), and repeatable surge handling are required - especially in 24 V and 36 V rail protection, CAN bus interfaces, and motor driver feedback paths.
Technical Context
The P6KE43CA operates as a bi-directional avalanche diode with symmetrical clamping behavior in both polarities, enabling protection of AC-coupled or floating signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (≤1.0 µA at VWM), while its thermal resistance (RθJL = 20 °C/W) supports reliable power dissipation under repetitive surges when mounted on adequate copper land.
It complies with IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and ISO 7637-2 (automotive transients), and is rated for operation from −55 °C to +175 °C junction temperature. The device fails short-circuit under severe overload, enabling coordination with upstream fusing - a critical safety behavior confirmed in Vishay's application notes and failure-mode documentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 40.9 V / 45.2 V at 1.0 mA - defines precise avalanche initiation threshold for bi-directional clamping |
| VWM | 36.8 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | ≤59.3 V at 10.1 A (10/1000 µs) - actual worst-case clamped voltage seen by protected circuit |
| PPPM | 600 W - peak transient energy absorption capability per single pulse, derated above 25 °C |
| IPPM | 10.1 A - maximum non-repetitive surge current the device safely clamps without degradation |
| TJ max | +175 °C - enables use in under-hood automotive and high-ambient industrial environments |
| Package | DO-204AC (DO-15) - industry-standard axial leaded package with UL 94 V-0 molded epoxy body |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, bi-directional configuration with no polarity marking - both leads are electrically symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction terminal | No functional distinction between leads; either terminal may connect to line or ground - enables flexible placement in differential or floating nodes |
| Case (body) | Non-electrical mechanical interface | Molded epoxy housing provides mechanical protection, flame retardancy (UL 94 V-0), and thermal path to PCB copper |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables protection against high-energy transients such as ISO 7637-2 Pulse 5a (load dump) in 24 V systems |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance per stress test plan |
| Glass passivated junction | Ensures stable VBR tolerance (±5 %), low parameter drift over life, and immunity to humidity-induced leakage |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes let-through voltage during surge, reducing stress on downstream 5 V or 3.3 V logic interfaces |
| Matte tin-plated leads | Guarantees solderability per J-STD-002 and JESD 22-B102, with whisker resistance per JESD 201 Class 1A (E3 suffix) |
Applications
| Automotive Power Line Protection | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Protecting 24 V supply rails in engine control units (ECUs) and body electronics against load dump and inductive kickback. IC Role / Device Role / Timing Role: Bi-directional TVS placed between power rail and chassis ground to clamp transients up to ±100 V within nanoseconds. Use Value: Limits voltage excursion to ≤59.3 V, preventing damage to 36 V-rated DC-DC converters and microcontrollers with 40 V absolute maximum ratings. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loops) of pressure/temperature sensors in factory automation. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF) bi-directional suppressor across signal and return, referenced to local ground. Use Value: Maintains signal integrity during ESD events (±8 kV contact) while adding <0.1 % gain error due to sub-µA leakage at 36.8 V. |
| Motor Drive Feedback Isolation | CAN Bus Physical Layer Protection |
|
Use Scenario: Safeguarding isolated encoder or resolver feedback signals in servo drives exposed to commutation noise. IC Role / Device Role / Timing Role: Paired P6KE43CA devices across differential A/B channels to suppress common-mode surges without disrupting edge timing. Use Value: Clamps transients faster than optocoupler propagation delay (<100 ns), preserving position resolution in high-speed motion control. |
Use Scenario: Front-end protection for CAN transceivers (e.g., TJA1042, SN65HVD230) in vehicle networking nodes. IC Role / Device Role / Timing Role: Bi-directional TVS between CAN_H/CAN_L lines and ground, meeting ISO 11898-2 EMC requirements. Use Value: Withstands ±30 kV ESD (IEC 61000-4-2) and limits common-mode surge to <60 V, preventing transceiver latch-up or burnout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ43CA (Diodes Inc.) | Same VBR range (40.9–45.2 V), but SMC (DO-214AB) surface-mount package; 600 W rating; lower RθJA (50 °C/W vs. 75 °C/W) | Requires PCB rework for SMT assembly; better suited for high-density layouts and automated production | Select SMBJ43CA when board space is constrained and reflow compatibility is prioritized over through-hole serviceability. |
| 1.5KE43CA (ON Semiconductor) | Identical DO-15 package and electrical specs (VBR, VC, PPPM); same 600 W rating; RoHS-compliant; not AEC-Q101 qualified | Lacks automotive qualification - acceptable for industrial/commercial use but not for Tier-1 automotive designs | Choose 1.5KE43CA for cost-sensitive non-automotive applications where AEC-Q101 is not mandated. |
Compared with SMBJ43CA and 1.5KE43CA, the P6KE43CA offers AEC-Q101 qualification in a legacy through-hole DO-15 package - making it ideal for prototyping, repair, and automotive modules requiring proven field reliability and manual assembly compatibility.
Availability
P6KE43CA is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, motor drive feedback circuits, and CAN bus nodes requiring stable component supply across multi-year production cycles.
Supply support for P6KE43CA 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, TVS devices, and power MOSFETs with emphasis on reliability, ruggedness, and application-specific validation.
The P6KE series belongs to Vishay's TRANSZORB® TVS family, engineered for cost-effective, high-surge-capability protection in commercial and automotive environments where fast clamping and thermal stability are essential.
FAQ
What is the breakdown voltage tolerance for P6KE43CA?
The P6KE43CA has a specified breakdown voltage range of 40.9 V to 45.2 V at 1.0 mA test current, representing a ±5 % tolerance around the nominal 43 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports predictable system-level surge margin calculations in designs using the P6KE43CA.
Is P6KE43CA suitable for automotive applications?
Yes, the P6KE43CA is AEC-Q101 qualified - verified for automotive-grade reliability including temperature cycling, high-temperature reverse bias, and surge endurance testing. Its DO-15 package, 175 °C max junction temperature, and compliance with ISO 7637-2 make the P6KE43CA appropriate for under-hood and body-control module applications.
How does P6KE43CA differ from uni-directional P6KE43A?
The P6KE43CA is bi-directional with symmetrical clamping in both polarities and no polarity marking, while P6KE43A is uni-directional with a cathode band and forward voltage drop (~3.5 V). The P6KE43CA is used where AC or floating signals require protection without polarity constraints - unlike the P6KE43A, which is limited to DC rail protection with defined anode/cathode orientation.
What is the maximum clamping voltage of P6KE43CA at rated surge current?
The P6KE43CA clamps to a maximum of 59.3 V when subjected to its rated 10.1 A peak pulse current (10/1000 µs waveform). This VC value is measured under standardized conditions and represents the highest voltage the protected circuit will experience during a full-rated transient - a critical parameter for ensuring downstream ICs remain within their absolute maximum ratings when using the P6KE43CA.
Does P6KE43CA have RoHS and halogen-free compliance?
Yes, the P6KE43CA carries the E3 suffix (e.g., P6KE43CA-E3/54), indicating RoHS compliance per Directive 2011/65/EU and halogen-free status per JEDEC JS709A. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the molding compound is UL 94 V-0 rated - all confirmed in Vishay's official documentation for the P6KE43CA.
P6KE43CA/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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 36.8V
- Voltage - Breakdown (Min):
- 40.9V
- Voltage - Clamping (Max) @ Ipp:
- 59.3V
- Current - Peak Pulse (10/1000µs):
- 10.1A
- 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)
P6KE43CA/54 FAQ
1.How can I place an order for P6KE43CA/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE43CA/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 P6KE43CA/54 reliable?
The price and inventory of P6KE43CA/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE43CA/54 is usually 5 days.
3.What payment methods are accepted for P6KE43CA/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE43CA/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE43CA/54?
P6KE43CA/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE43CA/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 P6KE43CA/54?
For technical support, including P6KE43CA/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE43CA/54 requirements.
6.How does Aetrix verify that P6KE43CA/54 is sourced from the original manufacturer or authorized distributors?
All P6KE43CA/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 P6KE43CA/54 meets industry standards.
7.What is the process for return or replacement of P6KE43CA/54?
All P6KE43CA/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE43CA/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 P6KE43CA/54 part is unused and in its original packaging.
Return procedure for P6KE43CA/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE43CA/54 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
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
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 …
