My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB12CAHE3_B/H
- Part No.:
- P6SMB12CAHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB12CAHE3_B/H.pdf
- Description:
- 600W,12V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,832
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB12CAHE3_B/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 12 V standoff voltage (VWM), 16.7 V clamping voltage (VC) at 35.9 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 μs waveform. It protects signal lines and power rails in automotive sensor interfaces, industrial I/O modules, and telecom front-end circuits against ESD and inductive switching transients.
For engineers reviewing the P6SMB12CAHE3_B/H datasheet, P6SMB12CAHE3_B/H pinout, P6SMB12CAHE3_B/H application, or P6SMB12CAHE3_B/H equivalent, key selection criteria include bidirectional clamping behavior, AEC-Q101 qualification, 100 °C/W junction-to-ambient thermal resistance, and compatibility with automated SMT assembly on standard 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates symmetrically in both polarities due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<5.0 μA at 10.2 V) across temperature.
Designed for transient suppression per IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and ISO 7637-2 (automotive load dump), it delivers sub-nanosecond response time and low incremental surge resistance to limit voltage overshoot during fast-rising transients up to 600 W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 10.2 V - Maximum continuous reverse voltage before significant conduction; defines operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 11.4–12.6 V at 1.0 mA - Confirmed avalanche onset range; ensures predictable turn-on under transient stress |
| VC (Clamping Voltage) | 16.7 V at IPPM = 35.9 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines downstream component stress |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability with 0.01% duty cycle; validates robustness against repetitive surges |
| TJ max. | +150 °C - Maximum junction temperature rating; supports operation in under-hood automotive environments |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with J-STD-020 MSL Level 1 reflow |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, dimensions 4.57 mm × 3.94 mm × 2.20 mm (L × W × H). No polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity surge) | Conducts during negative-going transients; forms symmetrical clamping path with cathode |
| Cathode | Transient current entry (positive polarity surge) | Conducts during positive-going transients; enables bidirectional voltage limiting without external bias |
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 (10/1000 μs) | Handles high-energy transients common in automotive load-dump and industrial motor-switching events |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control units and ADAS sensor interfaces |
| Low clamping ratio (VC/VWM = 1.64) | Minimizes overvoltage stress on downstream ICs compared to higher-ratio suppressors |
| MSL Level 1 moisture sensitivity | Permits unlimited floor life and standard reflow without baking; simplifies SMT manufacturing flow |
Applications
| Automotive Sensor Interface | Industrial PLC I/O Module |
|---|---|
Use Scenario: Protecting CAN FD and LIN bus transceivers from ESD and coupled transients in vehicle cabin sensors. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt surge energy before reaching PHY layer. Use Value: Maintains signal integrity under ±25 kV contact ESD (IEC 61000-4-2) while adding no propagation delay or capacitance penalty. |
Use Scenario: Safeguarding 24 V DC digital input channels in programmable logic controllers exposed to relay coil flyback. IC Role / Device Role / Timing Role: Primary transient suppressor across input terminals, coordinated with series current-limiting resistor. Use Value: Limits induced voltage to ≤16.7 V during 100 A inductive kick, preventing false triggering or latch-up in input comparators. |
| Telecom Line Card Protection | Consumer USB-C Port ESD Clamp |
Use Scenario: Front-end protection of Ethernet PHYs and PoE injectors against lightning-induced surges on twisted-pair lines. IC Role / Device Role / Timing Role: Secondary-level TVS deployed after gas discharge tube (GDT) to handle residual fast transients. Use Value: Clamps residual 1 kV/μs transients to safe levels within 1 ns, preserving Ethernet signal eye diagram integrity. |
Use Scenario: Board-level ESD protection for USB-C CC and VBUS lines in portable audio devices. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp integrated adjacent to connector to meet IEC 61000-4-2 Level 4. Use Value: Adds <1 pF junction capacitance at zero bias, avoiding signal degradation on high-speed USB 2.0 data lanes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ12CA | Same VWM (10.2 V), VC (16.7 V), and PPPM (600 W); identical SMB package but non-AEC-Q101 commercial grade | Lacks automotive qualification; suitable for industrial/commercial designs where AEC compliance is not mandated | Select when cost sensitivity outweighs automotive reliability requirements and lifecycle assurance is not critical |
| 1.5SMC12CA | Higher package thermal resistance (RθJA = 125 °C/W vs. 100 °C/W); same electrical specs but larger SMC (DO-214AB) footprint | Requires PCB layout change; better suited for higher ambient temperature environments due to larger copper pad area | Choose when board space allows larger package and thermal derating margins must exceed 150 °C junction limit |
Compared with SMBJ12CA and 1.5SMC12CA, P6SMB12CAHE3_B/H uniquely combines AEC-Q101 qualification, SMB footprint, and 100 °C/W thermal resistance-making it the preferred choice for space-constrained automotive electronics requiring validated long-term reliability.
Availability
P6SMB12CAHE3_B/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line card protection, and consumer USB-C port ESD clamping requiring stable component supply and traceable sourcing.
Supply support for P6SMB12CAHE3_B/H 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 high-reliability and automotive-grade solutions.
The P6SMB Series targets cost-sensitive yet reliability-critical transient suppression needs in automotive, industrial, and telecom systems-designed specifically for robust SMT integration and AEC-Q101 compliance without performance trade-offs.
FAQ
What does the "CA" suffix indicate in P6SMB12CAHE3_B/H?
The "CA" suffix denotes a bidirectional configuration, meaning P6SMB12CAHE3_B/H provides symmetrical clamping for both positive and negative transients without polarity dependence. This eliminates the need for orientation-aware placement during SMT assembly and supports AC-coupled or differential signal protection-unlike unidirectional variants (e.g., P6SMB12A) that require correct anode/cathode alignment.
Is P6SMB12CAHE3_B/H qualified for automotive use?
Yes, P6SMB12CAHE3_B/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3_B", which designates RoHS-compliant and AEC-Q101-qualified variants. It has undergone stress testing including temperature cycling, high-temperature reverse bias (HTRB), and ESD per AEC-Q101 standards-making it suitable for engine control, body electronics, and ADAS sensor applications.
What is the maximum clamping voltage of P6SMB12CAHE3_B/H under surge conditions?
The maximum clamping voltage (VC) of P6SMB12CAHE3_B/H is 16.7 V at a peak pulse current (IPPM) of 35.9 A with a 10/1000 μs waveform. This value is measured per standard test conditions (TA = 25 °C, mounted on 0.2" × 0.2" copper pads) and represents the upper voltage limit imposed on protected circuitry during worst-case transient events.
How does the thermal resistance of P6SMB12CAHE3_B/H affect its power handling?
P6SMB12CAHE3_B/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W. At 5.0 W steady-state power dissipation, this results in a 500 °C junction-to-ambient delta-exceeding its 150 °C TJ max. Therefore, P6SMB12CAHE3_B/H is intended for transient-only operation (e.g., 600 W for <1 ms), not continuous DC power dissipation; sustained power must remain well below 5.0 W to avoid thermal runaway.
Can P6SMB12CAHE3_B/H replace P6SMB12A in an existing design?
No-P6SMB12CAHE3_B/H is bidirectional while P6SMB12A is unidirectional. Substituting them requires verifying circuit topology: P6SMB12A relies on polarity-aware placement (cathode band toward positive rail), whereas P6SMB12CAHE3_B/H functions identically in either orientation. Direct replacement may cause unintended conduction if used in DC-biased unidirectional paths without redesign.
P6SMB12CAHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 10.2V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 16.7V
- Current - Peak Pulse (10/1000µs):
- 35.9A
- 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)
P6SMB12CAHE3_B/H FAQ
1.How can I place an order for P6SMB12CAHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB12CAHE3_B/H 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 P6SMB12CAHE3_B/H reliable?
The price and inventory of P6SMB12CAHE3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB12CAHE3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB12CAHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB12CAHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB12CAHE3_B/H?
P6SMB12CAHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB12CAHE3_B/H 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 P6SMB12CAHE3_B/H?
For technical support, including P6SMB12CAHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB12CAHE3_B/H requirements.
6.How does Aetrix verify that P6SMB12CAHE3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB12CAHE3_B/H 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 P6SMB12CAHE3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB12CAHE3_B/H?
All P6SMB12CAHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB12CAHE3_B/H, 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 P6SMB12CAHE3_B/H part is unused and in its original packaging.
Return procedure for P6SMB12CAHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB12CAHE3_B/H 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 …
