My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB43AHE3/52
- Part No.:
- P6SMB43AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB43AHE3/52.pdf
- Description:
- TVS DIODE 36.8VWM 59.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,066
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB43AHE3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 43 V breakdown voltage (VBR = 40.9–45.2 V at IT = 1.0 mA), 36.8 V stand-off voltage (VWM), 59.3 V maximum clamping voltage (VC) at 10.1 A peak pulse current, and 600 W peak pulse power rating with a 10/1000 µs waveform - used to protect MOSFETs and ICs in industrial power supplies.
For engineers reviewing the P6SMB43AHE3/52 datasheet, P6SMB43AHE3/52 pinout, P6SMB43AHE3/52 application, or P6SMB43AHE3/52 equivalent, this part delivers AEC-Q101 qualification, low incremental surge resistance, fast response time, and RoHS-compliant matte tin-plated leads suitable for automated SMT assembly and automotive-grade reliability validation.
Technical Context
This unidirectional TVS diode operates as a voltage-clamping protection device across DC power rails or low-speed signal paths. Its glass-passivated junction ensures stable avalanche behavior under repetitive transient stress, while its MSL Level 1 rating supports lead-free reflow up to 260 °C without popcorn failure.
The device exhibits a temperature coefficient of VBR of +0.101 %/°C and a typical thermal resistance of 100 °C/W (junction-to-ambient), requiring minimal copper pad area (0.2" × 0.2") for rated 600 W pulse handling. It is not intended for continuous forward conduction but optimized for sub-millisecond overvoltage suppression.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 40.9 V / 45.2 V at 1.0 mA test current - defines reliable avalanche initiation range for consistent clamping onset |
| VWM | 36.8 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 59.3 V at 10.1 A - clamping voltage during 600 W transient, limiting downstream component stress |
| PPPM | 600 W with 10/1000 µs waveform - peak surge energy absorption capability per single event |
| Junction Temp. Range | –65 °C to +150 °C - enables operation in under-hood automotive and industrial ambient environments |
| Package | SMB (DO-214AA) - standardized surface-mount outline with cathode band marking and 5.59 mm body length |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, molded plastic case with UL 94 V-0 flammability rating; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102; polarity indicated by cathode band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to lower-potential side (e.g., ground or return rail); completes clamping loop during reverse surge |
| Cathode | Avalanche voltage reference / clamping node | Marked end; connected to protected line (e.g., 36 V supply rail); conducts when VAK ≥ VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics under stress conditions |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth, 2 kV line-line) without degradation |
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage (<1 µA at VWM) over temperature and lifetime |
| MSL Level 1 | Compatible with standard lead-free reflow profiles (peak 260 °C) without moisture-induced damage |
| Low clamping ratio (VC/VBR ≈ 1.31) | Minimizes overvoltage margin between clamping and protected IC's absolute maximum rating |
Applications
| Automotive Power Rail Protection | Industrial DC Power Input |
|---|---|
|
Use Scenario: Protecting 36 V battery-fed ECUs against load dump transients up to 60 V. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC input, clamping spikes within 1 ns. Use Value: Limits voltage seen by downstream regulators to ≤59.3 V, preventing latch-up or gate oxide rupture in 40 V-rated MOSFETs. |
Use Scenario: Safeguarding programmable logic controller (PLC) 24 V DC inputs from inductive switching noise. IC Role / Device Role / Timing Role: Standoff device mounted directly at connector entry point, shunting surge energy to chassis ground. Use Value: Absorbs 600 W pulses without derating at 75 °C ambient, maintaining immunity per IEC 61000-4-4 (EFT). |
| Telecom Line Interface | Consumer Appliance Motor Drive |
|
Use Scenario: Shielding RS-485 transceivers on base station backplanes from lightning-induced surges. IC Role / Device Role / Timing Role: Secondary protection stage after gas discharge tube (GDT), providing low-VC precision clamping. Use Value: Clamps to 59.3 V within nanoseconds, preserving signal integrity while meeting GR-1089-CORE Level 3 requirements. |
Use Scenario: Suppressing flyback voltage from brushed DC motors in smart home appliances. IC Role / Device Role / Timing Role: Parallel-connected across motor terminals to clamp inductive kickback during PWM commutation. Use Value: Handles repetitive 10/1000 µs pulses at 0.01% duty cycle, extending H-bridge MOSFET lifetime beyond 100,000 cycles. |
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-E3/52 | Same VBR range (40.9–45.2 V), but lower PPPM = 400 W and SMA package (smaller footprint, higher RθJA = 140 °C/W) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 without parallel staging | Select when board space is constrained and surge energy is ≤400 W; verify thermal margin at full load |
| 1.5SMC43A | Same electrical specs but SMC (DO-214AB) package - 7.11 mm body length, 1.5× larger pad area, RθJA = 75 °C/W | Better thermal performance for high-repetition-rate surges; requires larger PCB real estate | Choose for industrial systems needing extended pulse endurance or legacy SMC footprint compatibility |
Compared with SMAJ43A-E3/52 and 1.5SMC43A, P6SMB43AHE3/52 offers optimal balance of 600 W surge capacity, SMB footprint compactness, and AEC-Q101 qualification - making it preferred for space-constrained automotive and industrial designs requiring validated reliability.
Availability
P6SMB43AHE3/52 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC power inputs, telecom line interfaces, and consumer appliance motor drives requiring stable component supply with AEC-Q101 traceability and RoHS compliance.
Supply support for P6SMB43AHE3/52 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, efficiency, and application-specific validation.
The P6SMB Series targets robust transient suppression in harsh environments - engineered for automotive, industrial, and telecom systems where surge immunity, thermal stability, and long-term parametric consistency are critical.
FAQ
What is the clamping voltage of P6SMB43AHE3/52 at its rated peak pulse current?
The P6SMB43AHE3/52 has a maximum clamping voltage (VC) of 59.3 V at 10.1 A peak pulse current (IPPM) under a 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88370 and defines the upper voltage limit imposed on protected circuitry during a 600 W transient event. The P6SMB43AHE3/52 maintains this clamping performance across its specified junction temperature range.
Is P6SMB43AHE3/52 suitable for automotive applications?
Yes, P6SMB43AHE3/52 is AEC-Q101 qualified (denoted by the "HE3" suffix), meaning it has passed stress tests for temperature cycling, humidity, mechanical shock, and surge endurance required for automotive electronic modules. Its –65 °C to +150 °C operating range and MSL Level 1 reflow compatibility further support use in engine control units, body controllers, and ADAS power domains.
What does the "HE3" suffix indicate in P6SMB43AHE3/52?
The "HE3" suffix in P6SMB43AHE3/52 indicates RoHS-compliant construction with AEC-Q101 qualification and matte tin-plated leads. It distinguishes this variant from commercial-grade "E3" parts and confirms compliance with automotive reliability standards, including whisker resistance (JESD 201 Class 2) and moisture sensitivity level 1.
How does P6SMB43AHE3/52 differ from bidirectional variants like P6SMB43CA?
P6SMB43AHE3/52 is unidirectional, with polarity marked by a cathode band and functional only in reverse bias; P6SMB43CA is bidirectional, symmetric in both directions with no polarity marking and identical VBR in forward and reverse. The P6SMB43AHE3/52 is selected for DC rail protection where polarity is fixed, whereas P6SMB43CA suits AC-coupled or differential signal lines.
What PCB pad layout is recommended for P6SMB43AHE3/52 to achieve full 600 W rating?
To sustain the full 600 W peak pulse power rating, P6SMB43AHE3/52 must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in Vishay document 88370. Smaller pads reduce thermal dissipation and cause premature failure under repeated surges; the recommended layout ensures junction temperature remains within the 150 °C limit during transient events.
P6SMB43AHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB43AHE3/52 FAQ
1.How can I place an order for P6SMB43AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB43AHE3/52 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 P6SMB43AHE3/52 reliable?
The price and inventory of P6SMB43AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB43AHE3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB43AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB43AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB43AHE3/52?
P6SMB43AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB43AHE3/52 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 P6SMB43AHE3/52?
For technical support, including P6SMB43AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB43AHE3/52 requirements.
6.How does Aetrix verify that P6SMB43AHE3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB43AHE3/52 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 P6SMB43AHE3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB43AHE3/52?
All P6SMB43AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB43AHE3/52, 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 P6SMB43AHE3/52 part is unused and in its original packaging.
Return procedure for P6SMB43AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB43AHE3/52 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 …
