My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB24CA-M3/52
;;2.jpg)
- Part No.:
- P6SMB24CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB24CA-M3/52.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,613
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB24CA-M3/52 from Vishay General Semiconductor is a bidirectional surface-mount TRANSZORB® transient voltage suppressor in SMB (DO-214AA) package, rated for 24 V standoff voltage (VWM), 33.2 V clamping voltage (VC) at 18.1 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 μs). It protects signal lines and power rails in automotive sensor units, industrial I/O modules, and telecom interface circuits against ESD and inductive switching transients.
For engineers reviewing the P6SMB24CA-M3/52 datasheet, P6SMB24CA-M3/52 pinout, P6SMB24CA-M3/52 application, or P6SMB24CA-M3/52 equivalent, key selection criteria include bidirectional clamping symmetry, 33.2 V VC under 18.1 A surge, M3 halogen-free RoHS compliance, SMB thermal resistance (RθJA = 100 °C/W), and AEC-Q101 qualification eligibility via HM3 suffix variants.
Technical Context
This bidirectional TVS diode operates symmetrically in both polarities with identical VBR min/max (22.8 V / 25.2 V at 1 mA), VWM (20.5 V), and ID leakage (1.0 μA). Its glass-passivated junction enables fast response (<1 ns) and low incremental surge resistance, critical for protecting high-speed analog inputs and CAN/LIN bus nodes.
The device uses a planar silicon junction structure mounted in an SMB (DO-214AA) case with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102. Thermal performance is defined by RθJL = 20 °C/W and RθJA = 100 °C/W on 5.0 mm × 5.0 mm copper pads, supporting reliable operation up to TJ = 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 20.5 V - Maximum reverse working voltage before clamping begins; sets upper limit for continuous circuit bias without leakage degradation. |
| VBR (min/max) | 22.8 V / 25.2 V at 1 mA - Breakdown threshold range defining clamping onset; ensures consistent overvoltage protection across production lots. |
| VC @ IPPM | 33.2 V at 18.1 A - Clamped voltage during 10/1000 μs surge; determines maximum stress imposed on protected ICs like microcontrollers or transceivers. |
| PPPM | 600 W - Peak pulse power handling capability; supports robust immunity to IEC 61000-4-5 Level 4 surges (4 kV line-earth) when properly laid out. |
| ID @ VWM | 1.0 μA - Reverse leakage at rated standoff; low enough to avoid loading sensitive sensor bias networks or battery-powered circuits. |
| TJ max. | +150 °C - Maximum junction temperature; enables use in under-hood automotive environments and industrial enclosures without derating below 125 °C ambient. |
| Package | SMB (DO-214AA) - Surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; compatible with standard SMT reflow profiles (MSL level 1, 260 °C peak). |
Pinout & Package
Package: SMB (DO-214AA), bidirectional configuration with no polarity marking; symmetrical terminals accept voltage transients of either polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | One terminal of the back-to-back PN junction pair; connects to ground or common reference plane for bidirectional clamping. |
| Cathode | Transient return path (bidirectional) | Second terminal of the back-to-back PN junction pair; functionally identical to Anode in CA devices; forms symmetrical clamping node. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM in both directions-enables single-device protection of AC-coupled or differential signal lines (e.g., RS-485, CAN, audio). |
| 600 W peak pulse power | Withstands 10/1000 μs surges up to 18.1 A-meets IEC 61000-4-5 surge immunity requirements for industrial and automotive interfaces. |
| Halogen-free M3 construction | RoHS-compliant, halogen-free molding compound and matte tin plating-supports environmental compliance for global OEM programs without sacrificing solderability. |
| Low clamping ratio (VC/VBR) | 33.2 V / 24.0 V avg ≈ 1.38-minimizes overvoltage overshoot during transient events, reducing risk of latch-up or gate oxide damage in downstream MOSFETs or ICs. |
| Fast response time | <1 ns junction response-ensures clamping activation before transient energy couples into sensitive analog front-ends or digital logic inputs. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and pressure/temperature sensor outputs in engine control modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between signal line and chassis ground to shunt transients before reaching the LIN PHY. Use Value: Maintains signal integrity during 100 V/50 ms load dump events while limiting clamped voltage to 33.2 V-within absolute maximum rating of typical LIN transceivers. |
Use Scenario: Safeguarding 24 V DC digital input channels in programmable logic controllers subjected to relay coil flyback and field wiring ESD. IC Role / Device Role / Timing Role: Primary transient suppressor at connector entry point, operating in parallel with input RC filter and optocoupler isolation stage. Use Value: Absorbs 600 W surge energy without degradation, enabling >100,000 surge cycles per IEC 61000-4-5; eliminates need for secondary crowbar circuits. |
| Telecom Interface Protection | Consumer USB Port ESD Protection |
Use Scenario: Shielding RS-485 transceiver pins in base station remote radio units from lightning-induced surges on long outdoor cable runs. IC Role / Device Role / Timing Role: First-line bidirectional clamp on differential A/B lines, coordinated with common-mode chokes and secondary TVS arrays. Use Value: Symmetrical clamping ensures equal protection of both data lines, preventing common-mode to differential mode conversion that could corrupt data. |
Use Scenario: Adding robust ESD immunity to USB 2.0 D+/D− lines in smart home hubs where user-accessible ports face repeated ±8 kV contact discharge (IEC 61000-4-2). IC Role / Device Role / Timing Role: Low-capacitance (typ. 250 pF at 0 V) bidirectional clamp placed immediately after connector, before series impedance. Use Value: Clamps ±15 kV ESD events to <35 V within <1 ns-preserving signal rise time and eye diagram integrity for 480 Mbps USB 2.0 operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24CA | Same SMB package, identical VWM (20.5 V), VC (33.2 V), and PPPM (600 W); differs in JEDEC registration and minor thermal resistance (RθJA = 85 °C/W vs. 100 °C/W). | Preferred in space-constrained designs requiring marginally better thermal dissipation on minimal copper area. | Select SMBJ24CA when board layout allows tighter thermal management and JEDEC-standardized marking is required. |
| 1.5SMC24CA | Larger SMC (DO-214AB) package (7.11 mm × 6.22 mm); same electrical specs but higher thermal mass (RθJA = 65 °C/W) and 1.5 kW PPPM rating. | Suitable for high-reliability industrial power supplies where surge repetition rate exceeds 0.01% duty cycle. | Choose 1.5SMC24CA only when PCB real estate permits larger footprint and system-level surge testing demands >600 W single-pulse headroom. |
Compared with SMBJ24CA and 1.5SMC24CA, P6SMB24CA-M3/52 offers optimal balance of compact SMB footprint, halogen-free M3 compliance, and verified 600 W surge capability-making it ideal for cost-sensitive, high-volume automotive and industrial modules where board space and environmental compliance are prioritized over marginal thermal or power headroom.
Availability
P6SMB24CA-M3/52 is available at Aetrix Electronics and suitable for automotive sensor units, industrial PLC I/O modules, telecom RS-485 interfaces, and consumer USB port protection requiring stable component supply and halogen-free compliance.
Supply support for P6SMB24CA-M3/52 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, automotive qualification, and application-specific optimization.
The P6SMB Series targets cost-effective, high-volume transient suppression in automotive, industrial, and telecom systems-designed for automated SMT assembly, robust surge immunity, and seamless integration into compact PCB layouts.
FAQ
What is the clamping voltage of P6SMB24CA-M3/52 under maximum rated surge current?
The P6SMB24CA-M3/52 clamps to 33.2 V when subjected to its maximum rated peak pulse current of 18.1 A (10/1000 μs waveform). This value is measured per Figure 1 in the Vishay datasheet 88370 and defines the upper voltage limit imposed on protected circuitry during transient events. The P6SMB24CA-M3/52 maintains this clamping performance across its full operating temperature range (–65 °C to +150 °C) with minimal drift due to its stable silicon junction design.
Is P6SMB24CA-M3/52 suitable for automotive applications requiring AEC-Q101 qualification?
The P6SMB24CA-M3/52 itself is not AEC-Q101 qualified; however, Vishay offers the functionally identical HM3 variant (e.g., P6SMB24CAHM3_B/H) which carries full AEC-Q101 qualification for automotive use. The P6SMB24CA-M3/52 shares the same electrical characteristics, SMB package, and halogen-free construction-but requires verification of qualification status via ordering code suffix before deployment in automotive safety-critical systems.
How does the bidirectional design of P6SMB24CA-M3/52 affect its placement on a PCB?
The P6SMB24CA-M3/52 has no polarity marking and functions identically in both directions, so orientation on the PCB is not critical-either terminal may connect to signal or ground. This simplifies layout and eliminates orientation errors during automated placement. Unlike unidirectional TVS diodes, the P6SMB24CA-M3/52 can protect AC-coupled or differential lines (e.g., RS-485, CAN) without requiring matched pairs or careful routing alignment.
What is the maximum printed circuit board copper pad size recommended for P6SMB24CA-M3/52 to achieve rated thermal performance?
To achieve the published thermal resistance (RθJA = 100 °C/W) and full 600 W pulse power rating, the P6SMB24CA-M3/52 must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in Vishay's datasheet 88370. Reducing pad area increases junction temperature during surge events and may cause premature failure; increasing pad size improves thermal margin but does not increase PPPM beyond 600 W due to intrinsic junction limits.
Does P6SMB24CA-M3/52 meet lead-free soldering requirements for modern SMT assembly?
Yes, the P6SMB24CA-M3/52 features matte tin-plated leads qualified to J-STD-002 and JESD 22-B102, supporting lead-free reflow profiles with peak temperatures up to 260 °C (MSL level 1). Its halogen-free molding compound and RoHS-compliant construction ensure compatibility with IPC-J-STD-020D guidelines and eliminate concerns about brominated flame retardants or chlorine content in high-reliability manufacturing environments.
P6SMB24CA-M3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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 (SMBJ)
P6SMB24CA-M3/52 FAQ
1.How can I place an order for P6SMB24CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB24CA-M3/52 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 P6SMB24CA-M3/52 reliable?
The price and inventory of P6SMB24CA-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB24CA-M3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB24CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB24CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB24CA-M3/52?
P6SMB24CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB24CA-M3/52 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 P6SMB24CA-M3/52?
For technical support, including P6SMB24CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB24CA-M3/52 requirements.
6.How does Aetrix verify that P6SMB24CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB24CA-M3/52 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 P6SMB24CA-M3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB24CA-M3/52?
All P6SMB24CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB24CA-M3/52, 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 P6SMB24CA-M3/52 part is unused and in its original packaging.
Return procedure for P6SMB24CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB24CA-M3/52 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 …
