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Vishay General Semiconductor - Diodes Division P6SMB43CAHM3/I
- Part No.:
- P6SMB43CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB43CAHM3/I.pdf
- Description:
- TVS DIODE 36.8VWM 59.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,637
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Product details
Overview
P6SMB43CAHM3/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal or power lines. It features 43 V breakdown voltage (VBR min/max = 40.9–45.2 V at 1 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 10/1000 µs waveform.
For engineers reviewing the P6SMB43CAHM3/I datasheet, P6SMB43CAHM3/I pinout, P6SMB43CAHM3/I application, or P6SMB43CAHM3/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification for automotive use, halogen-free RoHS compliance, low incremental surge resistance, and compatibility with automated SMT placement on PCBs with 5.0 mm × 5.0 mm copper pads per terminal.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), while the low Rsurge minimizes voltage overshoot during transient events.
The device is rated for 150 °C maximum junction temperature and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak, supporting standard lead-free assembly. Its thermal resistance (RθJA = 100 °C/W) reflects performance on minimal pad layout, and it delivers 600 W peak pulse power under repetitive 0.01% duty cycle conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 40.9 V / 45.2 V at 1 mA - defines reliable conduction onset range for transient clamping |
| VWM | 36.8 V - maximum continuous reverse voltage before leakage exceeds 1 μA |
| VC @ IPPM | 59.3 V at 10.1 A - clamped voltage seen by protected circuit during 10/1000 µs surge |
| PPPM | 600 W - peak transient energy absorption capacity under standardized waveform |
| Junction Temp | -65 °C to +150 °C - enables operation in under-hood automotive and industrial environments |
| Package | SMB (DO-214AA) - surface-mount footprint compatible with high-volume automated placement |
| AEC-Q101 | Qualified - validated for automotive reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Two-terminal SMB (DO-214AA) package; no polarity marking for bidirectional configuration. Cathode/anode terminals are functionally symmetrical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (either direction) | One side of symmetrical PN junction; connects to line being protected |
| Cathode | Transient current exit (either direction) | Other side of symmetrical PN junction; connects to line being protected |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC, differential, or floating signal lines without polarity constraints |
| 600 W peak pulse power | Withstands high-energy transients such as ISO 7637-2 Pulse 1/2a/5a in automotive electronics |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including HTOL, TC, and UHAST |
| Halogen-free & RoHS-compliant | Meets environmental compliance requirements for global automotive and industrial OEMs |
| MSL Level 1 | Supports standard lead-free reflow without baking or special handling |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN bus or 12 V supply rails against load dump and inductive switching spikes in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed between power rail and ground. Use Value: Limits transient voltage to ≤59.3 V during 10/1000 µs surges up to 10.1 A, preventing damage to downstream regulators and microcontrollers. | Use Scenario: Safeguarding analog outputs of pressure or temperature sensors connected to PLC I/O modules. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor across sensor output and reference ground. Use Value: Clamps ESD (IEC 61000-4-2 ±15 kV) and burst noise without distorting mV-level signals due to symmetrical low-leakage behavior. |
| Telecom Data Line Surge Protection | Consumer USB Port ESD Protection |
Use Scenario: Shielding RS-485 transceivers in base station backhaul links from lightning-induced surges. IC Role / Device Role / Timing Role: Primary line-to-ground TVS on differential pair inputs. Use Value: Absorbs 600 W transient energy while maintaining <1 ns response, preserving signal integrity up to 10 Mbps. | Use Scenario: Adding secondary-level ESD protection on USB 2.0 D+/D− lines in smart home hubs. IC Role / Device Role / Timing Role: Bidirectional clamp between data lines and chassis ground. Use Value: Provides robust ±15 kV contact ESD immunity per IEC 61000-4-2 while adding <0.5 pF parasitic capacitance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ43CA | 400 W peak pulse power; SMA package (smaller footprint, higher RθJA = 140 °C/W) | Limited to lower-energy transients; less suitable for automotive load dump | Select when board space is constrained and surge energy remains below 400 W |
| 1.5KE43CA | 600 W rating but through-hole DO-201AE package; higher mounting inductance | Not compatible with automated SMT; unsuitable for high-frequency or dense layouts | Choose only for legacy through-hole designs or prototyping where rework tolerance is prioritized |
Compared with SMAJ43CA and 1.5KE43CA, the P6SMB43CAHM3/I offers superior SMT manufacturability, AEC-Q101 qualification, and optimized thermal performance on standard PCB pads-making it the preferred choice for production automotive and industrial PCBs requiring repeatable, high-reliability transient suppression.
Availability
P6SMB43CAHM3/I is available at Aetrix Electronics and suitable for automotive control units, industrial sensor interfaces, telecom data line protection, and consumer USB port hardening requiring stable component supply and long-term lifecycle support.
Supply support for P6SMB43CAHM3/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific optimization.
The P6SMB Series is engineered for robust transient suppression in harsh environments, targeting automotive, industrial, and telecom systems where high pulse power, low clamping voltage, and AEC-Q101 compliance are mandatory.
FAQ
What does the "CA" suffix indicate in P6SMB43CAHM3/I?
The "CA" suffix denotes a bidirectional configuration, meaning the P6SMB43CAHM3/I functions identically in both polarities-ideal for protecting AC-coupled lines, differential buses, or floating references. Unlike unidirectional variants (e.g., P6SMB43A), it has no cathode band marking and exhibits matched VBR and VC in either direction, as confirmed in Vishay's P6SMB datasheet revision 09-Jan-2024.
Is P6SMB43CAHM3/I suitable for automotive applications?
Yes, P6SMB43CAHM3/I is AEC-Q101 qualified (indicated by the "HM3" suffix), with validation across temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing. It meets automotive requirements for under-hood and body-control module deployments, including protection against ISO 7637-2 pulses and ESD per ISO 10605.
What is the maximum clamping voltage of P6SMB43CAHM3/I and at what current?
The maximum clamping voltage (VC) of P6SMB43CAHM3/I is 59.3 V, measured at a peak pulse current (IPPM) of 10.1 A under the standard 10/1000 µs waveform. This value is guaranteed across temperature and ensures protected circuits remain within safe operating limits during surge events.
How does the HM3 suffix differ from M3 or E3 in P6SMB43CAHM3/I?
The "HM3" suffix indicates halogen-free, RoHS-compliant construction with full AEC-Q101 qualification-distinct from "M3" (halogen-free, commercial grade only) and "E3" (RoHS-compliant, commercial grade). The "I" denotes 13-inch tape-and-reel packaging (3200 units/reel), critical for high-volume SMT line feeding.
Can P6SMB43CAHM3/I be used in place of P6SMB43A in an existing design?
No-P6SMB43CAHM3/I is bidirectional while P6SMB43A is unidirectional; substituting them requires verifying circuit polarity and grounding topology. The P6SMB43CAHM3/I lacks a cathode band and conducts equally in both directions, whereas P6SMB43A must be oriented with the band toward the more positive potential. Layout and schematic review is essential before replacement.
P6SMB43CAHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB43CAHM3/I FAQ
1.How can I place an order for P6SMB43CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB43CAHM3/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 P6SMB43CAHM3/I reliable?
The price and inventory of P6SMB43CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB43CAHM3/I is usually 5 days.
3.What payment methods are accepted for P6SMB43CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB43CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB43CAHM3/I?
P6SMB43CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB43CAHM3/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 P6SMB43CAHM3/I?
For technical support, including P6SMB43CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB43CAHM3/I requirements.
6.How does Aetrix verify that P6SMB43CAHM3/I is sourced from the original manufacturer or authorized distributors?
All P6SMB43CAHM3/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 P6SMB43CAHM3/I meets industry standards.
7.What is the process for return or replacement of P6SMB43CAHM3/I?
All P6SMB43CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB43CAHM3/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 P6SMB43CAHM3/I part is unused and in its original packaging.
Return procedure for P6SMB43CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB43CAHM3/I Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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