My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB20CAHE3_B/H
- Part No.:
- P6SMB20CAHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB20CAHE3_B/H.pdf
- Description:
- 600W,20V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,859
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB20CAHE3_B/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 20 V standoff voltage (VWM), 22.8–25.2 V breakdown voltage (VBR) at 1 mA test current, and 600 W peak pulse power (10/1000 μs). It clamps transients to ≤27.7 V at 21.7 A peak pulse current and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the P6SMB20CAHE3_B/H datasheet, P6SMB20CAHE3_B/H pinout, P6SMB20CAHE3_B/H application, or P6SMB20CAHE3_B/H equivalent, key selection criteria include bidirectional clamping capability, 27.7 V max clamping voltage at rated IPPM, AEC-Q101 qualification status, and SMB package compatibility with automated SMT assembly.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling suppression of positive and negative polarity transients without polarity-sensitive placement. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at VWM).
Designed for transient immunity per IEC 61000-4-2 (ESD) and IEC 61000-4-4 (EFT), it delivers 600 W peak pulse power handling with 10/1000 μs waveform and meets MSL Level 1 (260 °C reflow peak), supporting robust industrial and automotive PCB assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 20 V - Maximum continuous reverse operating voltage before clamping initiates; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 22.8–25.2 V at 1 mA - Confirmed breakdown range ensuring reliable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 27.7 V at 21.7 A IPPM - Peak voltage seen by protected circuit during worst-case 10/1000 μs surge; critical for IC-level survivability. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability under standardized 10/1000 μs transient, enabling protection against inductive switching spikes. |
| TJ max | 150 °C - Maximum junction temperature rating, supporting operation in under-hood automotive environments and industrial enclosures. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress per AEC standard. |
| Package | SMB (DO-214AA) - Industry-standard surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; compatible with J-STD-020 reflow profiles. |
Pinout & Package
Package: SMB (DO-214AA), bidirectional device with no polarity marking; symmetrical terminal configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically; no cathode band marking - enables layout flexibility and eliminates orientation errors during placement. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines without external polarity management. |
| 600 W peak pulse power (10/1000 μs) | Supports robust immunity against high-energy transients from relay coil decay, motor commutation, and load dump in 12 V systems. |
| AEC-Q101 qualification (HE3 suffix) | Validated for automotive applications including body control modules, infotainment interfaces, and sensor signal conditioning. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and direct placement into standard 260 °C reflow without baking, reducing manufacturing overhead. |
| Glass-passivated junction | Ensures stable VBR tolerance, low leakage (<1 μA), and long-term parameter stability across temperature and lifetime. |
Applications
| Automotive Sensor Interface Protection | Industrial CAN Bus Transceiver Protection |
|---|---|
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) in engine control units from load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential sensor pair or supply rail to clamp ±200 V transients. Use Value: Prevents latch-up or damage to 24-bit ADC front-ends while maintaining signal integrity below 27.7 V clamping threshold. |
Use Scenario: Safeguarding CAN FD transceivers (e.g., TJA1044) against ESD and EFT on data lines in factory automation nodes. IC Role / Device Role / Timing Role: Low-capacitance bidirectional suppressor placed between CANH/CANL and ground to absorb 8 kV contact ESD pulses. Use Value: Maintains <10 pF junction capacitance (typ.) to avoid signal edge degradation at 5 Mbps CAN FD rates. |
| Consumer USB-C Port ESD Protection | Telecom DSL Line Surge Protection |
Use Scenario: Shielding USB-C CC and VBUS lines in portable docking stations from human-body-model (HBM) ESD events. IC Role / Device Role / Timing Role: Standoff-rated TVS on each line to limit voltage excursions during hot-plug insertion and cable discharge. Use Value: 20 V VWM allows full 20 V PD negotiation range while clamping 15 kV air-gap ESD to <30 V within nanoseconds. |
Use Scenario: Front-end protection of ADSL/VDSL line drivers against lightning-induced surges on twisted-pair telecom lines. IC Role / Device Role / Timing Role: Bidirectional suppressor bridging tip/ring to ground in line interface ICs (e.g., SLICs). Use Value: 600 W PPPM rating sustains multiple 10/1000 μs surges up to 1 kV without degradation, meeting ITU-T K.20/21 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ20CA | Same VWM (20 V), lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 140 °C/W) | Limited to lower-energy transients; less suitable for automotive load dump where 600 W is required. | Select when board space is constrained and surge energy remains below 400 W; verify thermal derating at TJ > 100 °C. |
| SMCJ20CA | Same VWM (20 V), higher PPPM (1500 W), larger SMC package (7.11 mm × 6.22 mm), higher clamping voltage (32.4 V) | Better for high-energy industrial surges but increases PCB area and may exceed IC absolute maximum ratings. | Choose when protecting 3.3 V or 5 V logic rails is not required and system-level surge compliance exceeds IEC 61000-4-5 Level 4. |
Compared with SMAJ20CA and SMCJ20CA, P6SMB20CAHE3_B/H delivers optimal balance of 600 W surge capacity, SMB footprint compatibility, 27.7 V clamping headroom for 3.3 V/5 V ICs, and AEC-Q101 qualification-making it the preferred choice for space-constrained automotive and industrial signal-line protection.
Availability
P6SMB20CAHE3_B/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, consumer USB-C docking stations, and telecom DSL line protection requiring stable component supply and AEC-Q101 traceability.
Supply support for P6SMB20CAHE3_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 reliability and application-specific performance.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and communications systems, designed to replace older axial-leaded TVS devices with surface-mount scalability and AEC-Q101 compliance.
FAQ
What does the "CA" suffix indicate in P6SMB20CAHE3_B/H?
The "CA" suffix denotes a bidirectional configuration, meaning P6SMB20CAHE3_B/H provides symmetrical clamping for both positive and negative voltage transients. Unlike unidirectional variants (e.g., P6SMB20A), it has no polarity marking and functions identically across both terminals-ideal for AC signal lines, differential buses, and floating grounds where polarity cannot be guaranteed.
Is P6SMB20CAHE3_B/H suitable for protecting 3.3 V logic circuits?
Yes, P6SMB20CAHE3_B/H is appropriate for safeguarding 3.3 V logic circuits when used with proper design margins. Its 20 V stand-off voltage ensures no conduction during normal operation, while its 27.7 V clamping voltage at 21.7 A must be paired with series impedance (e.g., current-limiting resistor) to prevent overshoot beyond the IC's absolute maximum rating. It is commonly deployed on I/O lines upstream of level shifters or buffer ICs.
How does the HE3 suffix differ from E3 or M3 in P6SMB20CAHE3_B/H?
The HE3 suffix in P6SMB20CAHE3_B/H indicates RoHS-compliant construction with AEC-Q101 qualification, distinguishing it from E3 (RoHS-compliant commercial grade) and M3 (halogen-free RoHS-compliant commercial grade). The "_B/H" denotes AEC-Q101 qualification level B and 7″ tape-and-reel packaging (750 units per reel), confirming suitability for automotive production environments.
What is the maximum clamping voltage of P6SMB20CAHE3_B/H under surge conditions?
The maximum clamping voltage of P6SMB20CAHE3_B/H is 27.7 V, measured at 21.7 A peak pulse current using the standardized 10/1000 μs waveform. This value is guaranteed across the full operating temperature range (−65 °C to +150 °C) and represents the highest voltage the protected circuit will experience during a worst-case transient event.
Does P6SMB20CAHE3_B/H require a heatsink for standard operation?
No, P6SMB20CAHE3_B/H does not require an external heatsink under typical surge conditions. Its thermal resistance junction-to-ambient (RθJA) is 100 °C/W on standard 0.2″ × 0.2″ copper pads, and its 5.0 W steady-state power dissipation rating is sufficient for intermittent transient absorption. Continuous DC power dissipation must remain below 5.0 W, and PCB copper area should follow Vishay's recommended pad layout for thermal and mechanical reliability.
P6SMB20CAHE3_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):
- 17.1V
- Voltage - Breakdown (Min):
- 19V
- Voltage - Clamping (Max) @ Ipp:
- 27.7V
- Current - Peak Pulse (10/1000µs):
- 21.7A
- 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)
P6SMB20CAHE3_B/H FAQ
1.How can I place an order for P6SMB20CAHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB20CAHE3_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 P6SMB20CAHE3_B/H reliable?
The price and inventory of P6SMB20CAHE3_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 P6SMB20CAHE3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB20CAHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB20CAHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB20CAHE3_B/H?
P6SMB20CAHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB20CAHE3_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 P6SMB20CAHE3_B/H?
For technical support, including P6SMB20CAHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB20CAHE3_B/H requirements.
6.How does Aetrix verify that P6SMB20CAHE3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB20CAHE3_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 P6SMB20CAHE3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB20CAHE3_B/H?
All P6SMB20CAHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB20CAHE3_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 P6SMB20CAHE3_B/H part is unused and in its original packaging.
Return procedure for P6SMB20CAHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB20CAHE3_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 …
