My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB24A-E3/52
- Part No.:
- P6SMB24A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB24A-E3/52.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,912
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB24A-E3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for robust overvoltage protection of sensitive electronics. It features a 24 V standoff voltage (VWM), 25.2 V maximum breakdown voltage (VBR), and clamps transients to 33.2 V at 18.1 A peak pulse current (IPPM) under a 10/1000 µs waveform - deployed on power rails and signal lines in industrial sensor interfaces and automotive ECUs.
For engineers reviewing the P6SMB24A-E3/52 datasheet, P6SMB24A-E3/52 pinout, P6SMB24A-E3/52 application, or P6SMB24A-E3/52 equivalent, key selection criteria include its 600 W peak pulse power rating, SMB (DO-214AA) package compatibility with automated SMT assembly, AEC-Q101 qualification eligibility (via HE3/HM3 variants), and low 1.0 µA reverse leakage at 20.5 V.
Technical Context
The P6SMB24A-E3/52 operates as a unidirectional clamping device: reverse-biased during normal operation, it remains high-impedance until transient voltage exceeds VBR (22.8–25.2 V), then rapidly switches to low-impedance conduction to divert surge current away from protected circuitry. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive surges.
Thermal performance is defined by RθJA = 100 °C/W (junction-to-ambient, on 0.2" × 0.2" copper pads) and TJ(max) = 150 °C, supporting operation in harsh environments. The device meets J-STD-020 MSL Level 1 and JESD201 Class 2 whisker resistance requirements, confirming suitability for lead-free reflow processes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 20.5 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC/AC working range. |
| VBR (Breakdown Voltage) | 22.8–25.2 V at 1 mA - Voltage at which device initiates avalanche conduction; tight tolerance enables precise protection thresholding. |
| VC (Clamping Voltage) | 33.2 V at 18.1 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; determines minimum IC withstand margin. |
| PPPM (Peak Pulse Power) | 600 W - Maximum transient energy absorption capability per pulse; validates suitability for IEC 61000-4-5 Level 4 surges. |
| IPPM (Peak Pulse Current) | 18.1 A - Surge current handled at rated clamping voltage; used to size upstream fusing and PCB trace width. |
| RθJA | 100 °C/W - Thermal resistance defining junction temperature rise under power dissipation; critical for derating above 25 °C ambient. |
| TJ(max) | 150 °C - Maximum allowable junction temperature; sets upper limit for thermal design and lifetime estimation. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads. Compliant with UL 94 V-0 flammability rating and RoHS (E3 suffix). Cathode identified by a band on the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (cathode-biased in protection mode) | Connected to ground or low-impedance return path; completes clamping loop during transient events. |
| Cathode | Reverse-biased terminal during normal operation | Connected to protected line (e.g., 24 V rail or signal); carries full surge current when clamping activates. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables compliance with IEC 61000-4-5 surge immunity standards up to Level 4 (4 kV line-earth) in properly designed layouts. |
| Low clamping ratio (VC/VBR ≈ 1.32) | Minimizes overvoltage stress on downstream ICs - critical for 3.3 V or 5 V logic interfacing with 24 V systems. |
| Glass passivated junction | Ensures stable VBR over time and temperature, reducing drift-induced false triggering or failure to clamp. |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free SMT assembly without pre-baking or special handling, lowering manufacturing cost. |
| AEC-Q101 qualification path (HE3/HM3 variants) | Validates reliability for automotive applications including engine control, body electronics, and ADAS sensor interfaces. |
Applications
| Industrial Sensor Interface | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Protecting analog output lines (e.g., 4–20 mA current loops) and digital I/O (CAN/LIN) from load dump and ESD in factory automation sensors. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground to clamp fast transients while maintaining DC integrity. Use Value: Prevents latch-up or permanent damage to precision ADCs and microcontrollers exposed to >1 kV ring wave surges per IEC 61000-4-4. |
Use Scenario: Safeguarding 12 V/24 V power inputs and switch sense inputs in BCMs subjected to ISO 7637-2 pulses and battery reverse connection. IC Role / Device Role / Timing Role: Primary front-end surge suppressor on supply rail, absorbing 100 A load dump spikes within 100 ms. Use Value: Maintains system uptime by limiting rail collapse to <33.2 V, ensuring MCU brown-out reset instead of destructive overvoltage failure. |
| Telecom Power Supply Input | Consumer Appliance Motor Drive |
|
Use Scenario: Input-stage protection on AC/DC adapters and PoE injectors against lightning-induced surges on primary-side DC bus. IC Role / Device Role / Timing Role: Standoff-rated TVS across bulk capacitor terminals to shunt differential-mode transients before they reach switching controller. Use Value: Extends capacitor lifetime by limiting voltage overshoot to 33.2 V, avoiding dielectric stress beyond 80 % of rated voltage. |
Use Scenario: Suppressing inductive kickback from brushed DC motors in washing machines and HVAC blowers during PWM commutation. IC Role / Device Role / Timing Role: Freewheeling path for back-EMF energy, clamping flyback voltage spikes generated at MOSFET turn-off. Use Value: Eliminates need for snubber RC networks, reducing BOM count and board space while achieving <10 ns response time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A (Bourns) | Same SMB package, identical VWM (20.5 V), but higher VC = 38.9 V at 15.4 A; lower PPPM = 400 W. | Less effective clamping margin for 3.3 V logic interfaces; suitable only where protected ICs tolerate >38 V transient exposure. | Select SMAJ24A only if cost sensitivity outweighs clamping performance and layout allows higher VC-tolerant downstream components. |
| 1.5SMC24A (ON Semiconductor) | Same electrical specs (VWM, VBR, VC, PPPM) and SMB package, but rated for 150 °C TJ(max) and not AEC-Q101 qualified in standard grade. | Lacks automotive qualification path; requires separate validation for automotive use cases. | Choose 1.5SMC24A for industrial/commercial designs where AEC-Q101 is unnecessary and second-source assurance is prioritized. |
Compared with SMAJ24A and 1.5SMC24A, the P6SMB24A-E3/52 delivers superior clamping voltage (33.2 V vs. ≥38.9 V) and validated AEC-Q101 readiness via HE3 variants - making it the preferred choice for automotive and high-reliability industrial designs demanding tighter voltage margins and qualification traceability.
Availability
P6SMB24A-E3/52 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, telecom power supplies, and consumer appliance motor drives requiring stable component supply, RoHS-compliant sourcing, and consistent SMB package form factor.
Supply support for P6SMB24A-E3/52 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, TVS devices, and optoelectronics with emphasis on reliability, power efficiency, and automotive-grade qualification.
The P6SMB Series was engineered for high-energy transient suppression in space-constrained SMT applications - targeting automotive, industrial, and telecom systems where 600 W pulse handling, low clamping, and MSL Level 1 assembly compatibility are mandatory.
FAQ
What is the clamping voltage of the P6SMB24A-E3/52 and how is it measured?
The P6SMB24A-E3/52 has a maximum clamping voltage (VC) of 33.2 V, measured at a peak pulse current (IPPM) of 18.1 A using a standardized 10/1000 µs double-exponential waveform. This value represents the highest voltage that appears across the P6SMB24A-E3/52 terminals during surge conduction and directly determines the overvoltage stress imposed on downstream components. It is specified at TA = 25 °C with device mounted on 0.2" × 0.2" copper pads per JEDEC standards.
Is the P6SMB24A-E3/52 suitable for automotive applications?
The P6SMB24A-E3/52 itself is RoHS-compliant and commercial-grade; however, Vishay offers AEC-Q101-qualified versions under ordering codes such as P6SMB24AHE3_B/H. These variants undergo extended stress testing for temperature cycling, humidity, and surge endurance - validating their use in automotive body electronics, infotainment, and ADAS sensor interfaces. For production automotive designs, specify the HE3 or HM3 suffix to ensure qualification compliance.
What is the thermal resistance of the P6SMB24A-E3/52 and how does it affect layout?
The P6SMB24A-E3/52 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. This value assumes minimal copper area; increasing pad size or adding internal ground planes reduces RθJA and improves surge survivability. Layouts must allocate sufficient copper to maintain TJ ≤ 150 °C during repetitive surges - especially critical in enclosed enclosures or high-ambient-temperature environments.
How does the P6SMB24A-E3/52 differ from bidirectional TVS diodes like P6SMB24CA?
The P6SMB24A-E3/52 is unidirectional and functions only in reverse bias - ideal for DC power rail protection where polarity is fixed. In contrast, P6SMB24CA is bidirectional and symmetrical, enabling AC line or data-line protection (e.g., RS-485, CAN) where voltage polarity reverses. The P6SMB24A-E3/52 offers lower leakage (<1.0 µA at 20.5 V) and slightly tighter VBR tolerance than its bidirectional counterpart, but cannot protect against positive-going transients on grounded lines.
What is the maximum surge current the P6SMB24A-E3/52 can handle and under what conditions?
The P6SMB24A-E3/52 handles a maximum peak pulse current (IPPM) of 18.1 A when subjected to a 10/1000 µs waveform at TA = 25 °C. This rating assumes non-repetitive pulses with ≤0.01 % duty cycle and proper PCB thermal design (0.2" × 0.2" copper pads). Derating applies above 25 °C ambient per Figure 2 in the datasheet - e.g., at 85 °C, IPPM drops to ~12.5 A. Exceeding this limit risks parametric shift or catastrophic failure of the P6SMB24A-E3/52.
P6SMB24A-E3/52 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 20.5V
- Voltage - Breakdown (Min):
- 22.8V
- Voltage - Clamping (Max) @ Ipp:
- 33.2V
- Current - Peak Pulse (10/1000µs):
- 18.1A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB24A-E3/52 FAQ
1.How can I place an order for P6SMB24A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB24A-E3/52 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 P6SMB24A-E3/52 reliable?
The price and inventory of P6SMB24A-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB24A-E3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB24A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB24A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB24A-E3/52?
P6SMB24A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB24A-E3/52 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 P6SMB24A-E3/52?
For technical support, including P6SMB24A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB24A-E3/52 requirements.
6.How does Aetrix verify that P6SMB24A-E3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB24A-E3/52 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 P6SMB24A-E3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB24A-E3/52?
All P6SMB24A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB24A-E3/52, 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 P6SMB24A-E3/52 part is unused and in its original packaging.
Return procedure for P6SMB24A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB24A-E3/52 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 …
