My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB43AHE3_A/I
- Part No.:
- P6SMB43AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB43AHE3_A/I.pdf
- Description:
- TVS DIODE 36.8VWM 59.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,399
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB43AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping transient overvoltages 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), and clamps to 59.3 V at 10.1 A peak pulse current (IPPM) under 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the P6SMB43AHE3_A/I datasheet, P6SMB43AHE3_A/I pinout, P6SMB43AHE3_A/I application, or P6SMB43AHE3_A/I equivalent, key selection criteria include its AEC-Q101 qualification, 600 W peak pulse power rating, low incremental surge resistance, and RoHS-compliant matte tin-plated terminals suitable for automated SMT assembly.
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, while the SMB package provides thermal performance with RθJA = 100 °C/W and RθJL = 20 °C/W under standard mounting conditions.
The device responds within picoseconds to transients induced by inductive switching or ESD events, limiting voltage to ≤59.3 V at 10.1 A. It supports repetitive surges at 0.01% duty cycle and is rated for continuous operation from –65 °C to +150 °C junction temperature.
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 onset range for consistent 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 clamped voltage seen by protected circuit during surge |
| PPPM | 600 W - peak transient power handling capability under standardized surge waveform |
| IFSM | 100 A - non-repetitive forward surge current rating (8.3 ms half-sine), relevant for fault-current scenarios |
| TJ max. | +150 °C - maximum junction temperature enabling use in under-hood automotive and high-ambient industrial environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads; cathode indicated by band marking on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to lower-potential side of protected line | Provides low forward voltage drop (<3.5 V at 50 A) during fault conduction; must be routed to ground or return path |
| Cathode | Current exit terminal in forward bias; marked with band; connected to higher-potential side | Acts as reference node for clamping action; ties to supply rail or signal line requiring overvoltage protection |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust suppression of high-energy transients common in 12 V/24 V automotive and industrial power systems |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive electronics per stress-test requirements - supports Tier-1 BOM inclusion without requalification |
| Glass passivated junction | Ensures stable, repeatable avalanche characteristics over lifetime and temperature, minimizing parameter drift |
| MSL Level 1 (260 °C peak reflow) | Compatible with standard lead-free SMT reflow profiles without moisture sensitivity concerns or baking requirements |
| Low incremental surge resistance | Reduces clamping voltage overshoot during fast-rising transients, improving protection margin for downstream ICs |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and ground to clamp surges up to ±100 V. Use Value: Limits voltage to ≤59.3 V during 10/1000 μs transients, preventing damage to MCU power inputs and CAN transceivers. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: TVS mounted across sensor output line and ground to absorb ESD and cable discharge events. Use Value: Clamps sub-100 ns ESD pulses to <60 V, preserving ADC input integrity and avoiding false readings or latch-up. |
| DC-DC Converter Input Protection | Telecom Line Card Surge Suppression |
|
Use Scenario: Front-end protection for buck converter inputs in telecom power supplies exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping device upstream of input filter capacitor and controller IC. Use Value: Absorbs 600 W transient energy without degradation, maintaining regulation stability and extending MOSFET lifetime. |
Use Scenario: Secondary-level surge protection on -48 V DC distribution lines feeding base station RF modules. IC Role / Device Role / Timing Role: Unidirectional TVS referenced to system ground, shunting induced common-mode surges. Use Value: Withstands repeated 10/1000 μs surges at 0.01% duty cycle, meeting GR-1089-CORE Level 3 immunity requirements. |
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-E3/57 | Same VBR range (40.9–45.2 V), but SMA package (DO-214AC); 400 W PPPM; RθJA = 120 °C/W | Limited to lower-power or space-constrained layouts where SMB footprint is unavailable | Select when board area is constrained and 400 W rating suffices; verify thermal derating for ambient >85 °C |
| 1.5SMC43A | Same electrical specs, but SMC (DO-214AB) package; 1.5 kW PPPM; larger footprint and higher IPPM (23.3 A) | Suitable for higher-energy surge environments (e.g., outdoor power equipment) requiring greater margin | Choose for enhanced surge margin where PCB real estate allows; not drop-in due to different pad layout and height |
Compared with SMAJ43A-E3/57 and 1.5SMC43A, P6SMB43AHE3_A/I delivers optimal balance of AEC-Q101 qualification, 600 W capability, and compact SMB footprint - making it preferred for automotive body control modules and industrial I/O cards where reliability, size, and thermal performance are jointly critical.
Availability
P6SMB43AHE3_A/I is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom power supply designs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB43AHE3_A/I 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 was engineered for high-reliability transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where AEC-Q101 compliance and stable clamping performance are mandatory.
FAQ
What is the clamping voltage of P6SMB43AHE3_A/I under standard surge conditions?
The P6SMB43AHE3_A/I clamps to a maximum of 59.3 V when subjected to a 10/1000 μs transient pulse at 10.1 A peak current. This value is measured per JEDEC standards and represents the upper limit of voltage imposed on the protected circuit during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is P6SMB43AHE3_A/I suitable for automotive applications?
Yes, P6SMB43AHE3_A/I is AEC-Q101 qualified (denoted by HE3 suffix) and specifically tested for automotive-grade reliability, including temperature cycling, high-temperature reverse bias, and ESD robustness. It is widely deployed in engine control units, body electronics, and ADAS power domains where transient immunity is mandated.
What does the "_A/I" suffix indicate in P6SMB43AHE3_A/I?
The "_A/I" suffix in P6SMB43AHE3_A/I specifies packaging: "A" denotes the revision code (per Vishay's internal documentation), and "I" indicates 13-inch diameter plastic tape-and-reel delivery with 3200 units per reel. This format supports high-volume SMT placement and is traceable to Vishay's manufacturing lot controls.
How does P6SMB43AHE3_A/I differ from bidirectional variants like P6SMB43CA?
P6SMB43AHE3_A/I is unidirectional and features polarity marking (cathode band); it conducts only in reverse breakdown and blocks forward current above ~3.5 V. In contrast, P6SMB43CA is bidirectional with symmetrical clamping in both directions and no polarity marking - used where AC-coupled or differential signal lines require protection without polarity constraints.
What is the thermal resistance of P6SMB43AHE3_A/I, and how does it affect layout design?
P6SMB43AHE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain TJ ≤ 150 °C at full 5.0 W steady-state dissipation, designers must ensure adequate copper area and avoid excessive ambient temperatures - especially in sealed enclosures.
P6SMB43AHE3_A/I 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:
- Obsolete
- 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_A/I FAQ
1.How can I place an order for P6SMB43AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB43AHE3_A/I 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_A/I reliable?
The price and inventory of P6SMB43AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB43AHE3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB43AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB43AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB43AHE3_A/I?
P6SMB43AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB43AHE3_A/I 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_A/I?
For technical support, including P6SMB43AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB43AHE3_A/I requirements.
6.How does Aetrix verify that P6SMB43AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB43AHE3_A/I 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_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB43AHE3_A/I?
All P6SMB43AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB43AHE3_A/I, 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_A/I part is unused and in its original packaging.
Return procedure for P6SMB43AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB43AHE3_A/I 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
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 …
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…
