My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6KE43HE3/73
- Part No.:
- P6KE43HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE43HE3/73.pdf
- Description:
- TVS DIODE 34.8VWM 61.9VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,985
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6KE43HE3/73 from Vishay General Semiconductor is a uni-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for primary overvoltage protection of DC power rails and signal lines. It features 40.9 V minimum breakdown voltage (VBR), 36.8 V maximum stand-off voltage (VWM), 59.3 V clamping voltage (VC) at 10.1 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used in automotive ECU input protection and industrial sensor interface circuits.
For engineers reviewing the P6KE43HE3/73 datasheet, P6KE43HE3/73 pinout, P6KE43HE3/73 application, or P6KE43HE3/73 equivalent, this AEC-Q101 qualified TVS offers validated surge immunity for 12 V/24 V vehicle subsystems, meets UL 497B recognition (QVGQ2), and provides RoHS-compliant, whisker-tested (JESD 201 Class 2) lead finish for high-reliability soldering in automotive-grade production.
Technical Context
This device operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ at VWM), but triggers into low-impedance conduction when transient voltage exceeds VBR, diverting surge current away from downstream ICs. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and fast response time (<1 ns).
Thermal design is constrained by RθJL = 20 °C/W (junction-to-lead) and RθJA = 75 °C/W (junction-to-ambient); derating begins above TA = 25 °C per Fig. 2, with full 600 W capability only at TL ≤ 75 °C. The 175 °C max junction temperature supports under-hood automotive placement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36.8 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA; defines safe DC rail margin for 36 V nominal systems |
| VBR (min/max) | 40.9 V / 45.2 V at 1.0 mA - tight 5 % tolerance ensures predictable turn-on across temperature and lot variation |
| VC @ IPPM | 59.3 V at 10.1 A - clamping voltage limits downstream stress during 600 W transients; critical for MOSFET gate oxide protection |
| IPPM | 10.1 A - peak surge current capacity with 10/1000 µs waveform; determines survivability against ISO 7637-2 Pulse 1/2a/5a events |
| PPPM | 600 W - standardized surge power rating; enables single-device protection for CAN/LIN bus nodes and microcontroller I/Os |
| TJ max | 175 °C - extended junction temperature rating supports operation in engine control units and powertrain modules |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including HTOL, TC, UHAST, and mechanical shock |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, molded epoxy case meeting UL 94 V-0 flammability rating. Matte tin-plated leads comply with J-STD-002/JESD 22-B102 solderability and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in uni-directional configuration; enables clamping of positive transients on cathode side |
| Cathode | Reverse-biased terminal | Marked with color band; connected to protected line (e.g., 12 V rail or sensor output); conducts during overvoltage events to shunt energy to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR drift <0.05 %/°C and long-term reliability under thermal cycling in automotive environments |
| 600 W peak pulse power (10/1000 µs) | Supports compliance with ISO 7637-2 Level IV (500 W) and SAE J1113-11 without derating; eliminates need for parallel devices |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules where field failure risk must be minimized |
| RoHS-compliant + JESD 201 Class 2 whisker resistance | Enables use in lead-free reflow processes with >1000 hr whisker resistance; required for Tier 1 automotive supply chain traceability |
| UL 497B recognition (QVGQ2) | Confirms compliance for telecom and industrial signal line protection without additional system-level certification effort |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamping |
|---|---|
|
Use Scenario: 12 V battery feed to engine control unit exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Shunt clamping element placed between VBAT and chassis ground; activates within <1 ns to limit voltage to ≤59.3 V. Use Value: Prevents damage to 40 V-rated LDOs and MCU power pins while maintaining system uptime during cold-cranking and jump-start events. |
Use Scenario: Analog output (0–5 V) from pressure sensor routed through harness subject to ESD (IEC 61000-4-2 ±8 kV) and inductive switching noise. IC Role / Device Role / Timing Role: Low-capacitance (≈100 pF) uni-directional clamp on sensor output line; cathode tied to signal, anode to ground. Use Value: Maintains signal integrity below 5.5 V during transients, avoiding ADC saturation and false fault reporting in PLC analog inputs. |
| Telecom DC Power Feeds | Consumer Device USB Port Protection |
|
Use Scenario: -48 V DC power input to VoIP gateway board subjected to lightning-induced surges on telco lines coupled into power plane. IC Role / Device Role / Timing Role: Primary overvoltage suppressor upstream of DC/DC converter; configured with cathode to -48 V rail, anode to ground reference. Use Value: Limits transient excursions to ≤59.3 V, protecting isolated flyback controller ICs rated for 65 V absolute maximum input. |
Use Scenario: VBUS line (5 V) on USB 2.0 host port exposed to human-body-model ESD events during cable insertion. IC Role / Device Role / Timing Role: Fast-response shunt device placed between VUSB and GND; clamps ESD pulses before reaching USB transceiver PHY. Use Value: Achieves IEC 61000-4-2 Level 4 (±8 kV contact) protection without degrading 480 Mbps data eye due to low dynamic impedance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ43A | Same VWM/VBR/VC specs but SMA package (surface-mount); 400 W PPPM; no AEC-Q101 qualification | Preferred for space-constrained PCBs; unsuitable for under-hood automotive due to lower surge rating and qualification gap | Select when board area is limited and automotive qualification is not required; verify thermal relief for 600 W duty cycle. |
| 1.5KE43A | Same DO-15 package and electrical specs but commercial-grade (no AEC-Q101); 1.5 kW PPPM rating (10/1000 µs) | Used in non-automotive industrial power supplies; lacks whisker testing and UL recognition for telecom use | Choose for cost-sensitive AC/DC front-end protection where AEC-Q101 and UL 497B are not mandated. |
Compared with SMAJ43A and 1.5KE43A, P6KE43HE3/73 uniquely combines AEC-Q101 qualification, UL 497B recognition, and JESD 201 Class 2 whisker resistance in a proven DO-15 through-hole package - making it the only option qualified for safety-critical automotive power rail protection without layout redesign.
Availability
P6KE43HE3/73 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, telecom DC power feeds, and consumer USB port protection requiring stable component supply across multi-year production cycles.
Supply support for P6KE43HE3/73 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, and protection devices with emphasis on reliability, automotive qualification, and industry-standard compliance.
The P6KE series targets cost-effective, high-surge-capability transient protection for automotive, industrial, and telecom infrastructure - delivering AEC-Q101 validation and UL recognition in standard DO-15 packaging.
FAQ
What is the clamping voltage of P6KE43HE3/73 and how is it measured?
The clamping voltage (VC) of P6KE43HE3/73 is 59.3 V, measured at 10.1 A peak pulse current using a 10/1000 µs waveform per IEC 61000-4-5. This value represents the maximum voltage seen across the device during standardized surge testing and directly determines the protection level afforded to downstream components like MCUs or transceivers. P6KE43HE3/73 maintains this clamping performance across its full operating temperature range (-55 °C to +175 °C).
Is P6KE43HE3/73 suitable for automotive applications?
Yes, P6KE43HE3/73 is AEC-Q101 qualified and specifically designed for automotive use. Its HE3 suffix denotes AEC-Q101 qualification, JESD 201 Class 2 whisker resistance, and UL 497B recognition (QVGQ2). It is deployed in engine control units, body control modules, and ADAS sensors where sustained operation at 175 °C junction temperature and immunity to ISO 7637-2 transients are required. P6KE43HE3/73 meets all stress test requirements including HTOL, temperature cycling, and mechanical shock.
How does the P6KE43HE3/73 differ from the P6KE43A-E3/73 variant?
P6KE43HE3/73 is the AEC-Q101 qualified version with JESD 201 Class 2 whisker resistance, while P6KE43A-E3/73 is the commercial-grade variant (Class 1A whisker test). Both share identical electrical specifications (VWM = 36.8 V, VBR = 40.9–45.2 V, VC = 59.3 V), DO-204AC package, and RoHS compliance. The key distinction lies in qualification scope: only P6KE43HE3/73 is approved for automotive safety-critical applications per AEC-Q101, and its manufacturing process includes additional screening for automotive reliability.
What is the maximum reverse leakage current for P6KE43HE3/73 at its stand-off voltage?
The maximum reverse leakage current (ID) for P6KE43HE3/73 is 1.0 µA at its stand-off voltage (VWM) of 36.8 V, measured at TA = 25 °C. This low leakage ensures minimal power loss in always-on automotive circuits and prevents unintended discharge of hold-up capacitors in industrial power supplies. Leakage remains below 5 µA up to 125 °C ambient, supporting reliable operation in high-temperature environments.
Can P6KE43HE3/73 be used in bi-directional protection configurations?
No, P6KE43HE3/73 is a uni-directional TVS diode and is not rated for bi-directional operation. Its datasheet specifies polarity (cathode marked with band) and defines parameters only for reverse-biased conduction. For bi-directional protection, Vishay offers the P6KE43CA series (e.g., P6KE43CA-E3/73), which has symmetric breakdown in both directions and no polarity marking. Using P6KE43HE3/73 in bi-directional applications risks forward conduction and failure during negative transients.
P6KE43HE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 34.8V
- Voltage - Breakdown (Min):
- 38.7V
- Voltage - Clamping (Max) @ Ipp:
- 61.9V
- Current - Peak Pulse (10/1000µs):
- 9.7A
- 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)
P6KE43HE3/73 FAQ
1.How can I place an order for P6KE43HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE43HE3/73 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 P6KE43HE3/73 reliable?
The price and inventory of P6KE43HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE43HE3/73 is usually 5 days.
3.What payment methods are accepted for P6KE43HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE43HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE43HE3/73?
P6KE43HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE43HE3/73 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 P6KE43HE3/73?
For technical support, including P6KE43HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE43HE3/73 requirements.
6.How does Aetrix verify that P6KE43HE3/73 is sourced from the original manufacturer or authorized distributors?
All P6KE43HE3/73 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 P6KE43HE3/73 meets industry standards.
7.What is the process for return or replacement of P6KE43HE3/73?
All P6KE43HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE43HE3/73, 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 P6KE43HE3/73 part is unused and in its original packaging.
Return procedure for P6KE43HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE43HE3/73 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 …
