My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB56CAHE3_B/I
- Part No.:
- P6SMB56CAHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB56CAHE3_B/I.pdf
- Description:
- 600W,56V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,758
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB56CAHE3_B/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 56 V breakdown voltage (VBR min/max = 53.2–58.8 V), 77.0 V maximum clamping voltage at 7.8 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed to safeguard MOSFETs, ICs, and sensor interfaces against ESD and inductive switching transients in automotive and industrial control systems.
For engineers reviewing the P6SMB56CAHE3_B/I datasheet, P6SMB56CAHE3_B/I pinout, P6SMB56CAHE3_B/I application, or P6SMB56CAHE3_B/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, SMB (DO-214AA) package compatibility, and verified 150 °C junction temperature rating under repetitive surge conditions.
Technical Context
This device operates as a voltage-clamped shunt protector: during transient events exceeding its reverse standoff voltage (VWM = 47.8 V), it avalanches rapidly to limit voltage across protected circuitry. Its bidirectional symmetry enables use on AC-coupled or floating lines without polarity concerns.
Thermal performance is defined by RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), supporting reliable operation up to TJ = 150 °C. The glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and low incremental surge resistance for consistent clamping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 53.2 V / 58.8 V at 1.0 mA test current - defines precise avalanche initiation threshold in both directions |
| VWM | 47.8 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 77.0 V at 7.8 A - clamped voltage seen by protected circuit during 10/1000 µs surge |
| PPPM | 600 W - peak transient power handling capacity per JEDEC standard waveform |
| IPPM | 7.8 A - maximum non-repetitive peak pulse current supported at rated clamping voltage |
| TJ max | 150 °C - maximum allowable junction temperature enabling operation in under-hood automotive environments |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 0.220" x 0.130" footprint and J-STD-020 MSL Level 1 rating |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance. Bidirectional construction has no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; common node in bidirectional clamping | Connected to line being protected; forms symmetrical avalanche path with Cathode |
| Cathode | Current exit terminal in forward bias; common node in bidirectional clamping | Connected to line being protected; identical electrical role to Anode due to bidirectional symmetry |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics |
| 600 W peak pulse power (10/1000 µs) | Withstands high-energy transients from load dump or relay coil de-energization |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes stress on downstream components during surge events |
| MSL Level 1, 260 °C reflow compatible | Enables single-pass lead-free soldering without moisture sensitivity concerns |
| Glass-passivated junction | Ensures stable leakage current (<1 µA at VWM) and long-term reliability under thermal cycling |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V power rails in vehicle ECUs from ISO 7637-2 load dump and jump-start surges. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between power rail and ground. Use Value: Clamps transients to ≤77.0 V within nanoseconds, preventing damage to 40 V-rated microcontrollers and CAN transceivers. |
Use Scenario: Safeguarding analog output lines of pressure/temperature sensors in PLC modules exposed to field wiring noise. IC Role / Device Role / Timing Role: Bidirectional voltage clamp on differential or single-ended signal paths. Use Value: Symmetric clamping preserves signal integrity on AC-coupled or floating sensor outputs without polarity constraints. |
| Telecom Line Surge Protection | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Shielding Ethernet PHY interface power pins from lightning-induced surges in outdoor network equipment. IC Role / Device Role / Timing Role: Secondary-level TVS placed after primary gas discharge tube (GDT) suppression stage. Use Value: Fast response time and low VC ensure residual energy is limited below IC absolute maximum ratings. |
Use Scenario: Suppressing inductive kickback from brushed DC motors in smart home appliances. IC Role / Device Role / Timing Role: Across-motor terminals to absorb back-EMF during PWM commutation. Use Value: 600 W rating handles repetitive 10/1000 µs pulses generated by motor switching cycles without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ58CA | Same SMB package, but lower 58 V VBR range (55.1–60.9 V); 400 W PPPM; not AEC-Q101 qualified | Limited to commercial-grade industrial or consumer use; unsuitable for automotive under-hood deployment | Select when cost sensitivity outweighs automotive qualification and higher surge margin is unnecessary |
| 1.5KE56CA | Through-hole DO-15 package; same 56 V nominal rating; 1500 W PPPM; higher VC = 93.6 V | Requires PCB layout change; better for high-energy single-event protection, worse for space-constrained SMT designs | Choose only if board real estate allows through-hole placement and peak surge exceeds 600 W requirements |
Compared with SMAJ58CA and 1.5KE56CA, P6SMB56CAHE3_B/I delivers AEC-Q101 compliance, optimized 77.0 V clamping, and SMB footprint - making it the preferred choice for automotive and high-reliability SMT applications where qualification, thermal performance, and board density are critical.
Availability
P6SMB56CAHE3_B/I is available at Aetrix Electronics and suitable for automotive control units, industrial sensor interfaces, telecom infrastructure power rails, and consumer appliance motor drives requiring stable component supply and AEC-Q101 assurance.
Supply support for P6SMB56CAHE3_B/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, MOSFETs, and passive components with emphasis on reliability and automotive-grade validation.
The P6SMB Series targets high-surge industrial and automotive applications, delivering standardized TVS protection in compact SMB packages with AEC-Q101 qualification and tight parametric control.
FAQ
What does the "CA" suffix indicate in P6SMB56CAHE3_B/I?
The "CA" suffix denotes a bidirectional configuration: P6SMB56CAHE3_B/I provides symmetrical clamping in both polarities, enabling use on AC lines, differential signals, or floating nodes without concern for orientation. This differs from unidirectional variants (e.g., P6SMB56A) that require correct cathode/anode placement relative to ground.
Is P6SMB56CAHE3_B/I suitable for automotive under-hood applications?
Yes - P6SMB56CAHE3_B/I carries AEC-Q101 qualification (indicated by the "HE3" and "_B" suffixes), confirming validation for automotive environments including under-hood temperature cycling, humidity, and mechanical shock. Its 150 °C maximum junction temperature and MSL Level 1 reflow rating support direct integration into engine control modules and body electronics.
What is the maximum clamping voltage of P6SMB56CAHE3_B/I and at what current is it specified?
The maximum clamping voltage (VC) of P6SMB56CAHE3_B/I is 77.0 V, measured at the peak pulse current (IPPM) of 7.8 A using the standard 10/1000 µs double-exponential waveform. This value represents the worst-case voltage imposed on protected circuitry during a full-rated transient event.
How does the SMB (DO-214AA) package of P6SMB56CAHE3_B/I compare to SMA or SMC footprints?
The SMB (DO-214AA) package of P6SMB56CAHE3_B/I measures 0.220" × 0.130" - smaller than SMC (DO-214AB) but larger than SMA (DO-214AC). It offers higher power handling than SMA while maintaining compatibility with standard pick-and-place equipment and reflow profiles, making it optimal for mid-power TVS applications where thermal dissipation and board area are balanced.
Does P6SMB56CAHE3_B/I require a heatsink for standard operation?
No - P6SMB56CAHE3_B/I is designed for operation without external heatsinking under typical conditions. Its thermal resistance (RθJA = 100 °C/W) assumes mounting on 0.2" × 0.2" copper pads per terminal. For repetitive surge duty or ambient temperatures above 70 °C, derating per Figure 2 in the datasheet is required, but no heatsink is needed for single-event protection at rated PPPM.
P6SMB56CAHE3_B/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 47.8V
- Voltage - Breakdown (Min):
- 53.2V
- Voltage - Clamping (Max) @ Ipp:
- 77V
- Current - Peak Pulse (10/1000µs):
- 7.8A
- 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)
P6SMB56CAHE3_B/I FAQ
1.How can I place an order for P6SMB56CAHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB56CAHE3_B/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 P6SMB56CAHE3_B/I reliable?
The price and inventory of P6SMB56CAHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB56CAHE3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB56CAHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB56CAHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB56CAHE3_B/I?
P6SMB56CAHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB56CAHE3_B/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 P6SMB56CAHE3_B/I?
For technical support, including P6SMB56CAHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB56CAHE3_B/I requirements.
6.How does Aetrix verify that P6SMB56CAHE3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB56CAHE3_B/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 P6SMB56CAHE3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB56CAHE3_B/I?
All P6SMB56CAHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB56CAHE3_B/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 P6SMB56CAHE3_B/I part is unused and in its original packaging.
Return procedure for P6SMB56CAHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB56CAHE3_B/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
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 …
