My Inquiry
My Account
Vishay General Semiconductor - Diodes Division BZW04P70B-E3/54
- Part No.:
- BZW04P70B-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P70B-E3/54.pdf
- Description:
- TVS DIODE 70.1VWM 113VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,264
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZW04P70B-E3/54 from Vishay General Semiconductor is a bi-directional TransZorb® transient voltage suppressor (TVS) diode designed for robust overvoltage protection in signal and power lines. It features a 70.1 V stand-off voltage (VWM), 113 V maximum clamping voltage (VC) at 3.5 A peak pulse current (IPPM), and 400 W peak pulse power capability with a 10/1000 µs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the BZW04P70B-E3/54 datasheet, BZW04P70B-E3/54 pinout, BZW04P70B-E3/54 application, or BZW04P70B-E3/54 equivalent, key selection criteria include its bi-directional clamping symmetry, AEC-Q101 qualification, DO-204AL (DO-41) through-hole package, and low 0.105 %/°C temperature coefficient of breakdown voltage - critical for stable surge response across automotive temperature ranges.
Technical Context
This bi-directional TVS diode operates symmetrically in both polarities, with identical electrical characteristics forward and reverse - enabling single-device protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable leakage performance and high reliability under repetitive surge stress.
The device delivers 400 W peak pulse power handling per the 10/1000 µs standard waveform, with clamping voltage tightly controlled at 113 V under 3.5 A transient current. Thermal derating follows a defined curve down to zero power at 175 °C junction temperature, supporting operation in high-ambient environments typical of engine control units and industrial drives.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 70.1 V - Maximum continuous working voltage before clamping begins; defines safe operating margin for 60 V nominal systems. |
| VBR (min/max) | 77.9 V / 90.2 V at 1 mA - Confirmed breakdown range ensures reliable triggering above VWM with process tolerance. |
| VC @ IPPM | 113 V at 3.5 A - Clamping voltage limits downstream IC stress during transients; enables design margin vs. 100 V rail ratings. |
| IPPM | 3.5 A - Peak pulse current capacity under 10/1000 µs waveform; determines survivability against ISO 7637-2 Pulse 1/2a/2b events. |
| PPPM | 400 W - Standardized surge energy absorption rating; supports compliance with IEC 61000-4-5 Level 3 (1 kV/2 Ω). |
| TJ max | 175 °C - Maximum junction temperature; enables use in under-hood automotive locations without thermal derating penalties. |
| Temp. Coeff. | 0.105 %/°C - Low VBR drift with temperature ensures consistent clamping across -55 °C to +175 °C operating range. |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, epoxy-molded case meeting UL 94 V-0 flammability rating. Matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards. Bi-directional construction means no polarity marking on the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional surge conduction path | Either lead serves as input/output terminal; no cathode band - enables placement flexibility in AC or differential circuits. |
| Lead 1 | Terminal 1 | Standard axial lead; solderable per JESD 22-B106 (275 °C, 10 s max); supports wave or hand soldering. |
| Lead 2 | Terminal 2 | Identical to Lead 1; mechanical and electrical symmetry allows unambiguous PCB footprint reuse across bi-directional variants. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces per stress test requirements. |
| Glass passivated junction | Ensures low leakage (<1 µA at VWM), stable long-term VBR, and resistance to humidity-induced parameter shift. |
| 400 W 10/1000 µs pulse rating | Meets IEC 61000-4-5 surge immunity requirements for industrial and telecom equipment up to Level 3. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD, inductive kickback), improving protected circuit margin. |
| RoHS-compliant, matte tin leads | Enables lead-free assembly compatibility and eliminates whisker risk per JESD201 Class 1A (E3 suffix). |
Applications
| Automotive Sensor Protection | Industrial PLC Analog Input |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bi-directional clamping element placed across signal pair or supply rail to shunt surge energy before it reaches sensitive ASIC inputs. Use Value: Maintains 70.1 V stand-off while clamping to 113 V - sufficient headroom for 12 V/24 V systems and compatible with AEC-Q100 Grade 2 ICs. |
Use Scenario: Safeguarding 4–20 mA current loop receivers and ±10 V analog inputs in programmable logic controllers against field wiring transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on input terminals, coordinated with series impedance and filtering to meet IEC 61000-4-4/5 immunity. Use Value: 400 W pulse rating and 3.5 A IPPM support repeated surge exposure in factory-floor environments without degradation. |
| Telecom Line Interface | Consumer Power Adapter Output |
|
Use Scenario: Secondary-side surge suppression on Ethernet PHY magnetics or xDSL line drivers exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Fast-response bi-directional clamp limiting common-mode voltage excursions across transformer windings or data pairs. Use Value: Symmetric VBR (77.9–90.2 V) and low tempco (0.105 %/°C) ensure consistent clamping across ambient temperature swings in outdoor cabinets. |
Use Scenario: Output rail protection in wall-mounted AC/DC adapters for smart home devices, preventing damage from output short-circuit recovery spikes. IC Role / Device Role / Timing Role: Final-stage TVS across regulated DC output, absorbing turn-on/turn-off transients from capacitive loads or cable disconnection. Use Value: DO-41 package enables cost-effective through-hole mounting; 175 °C TJ max accommodates confined thermal environments inside sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ70CA | Same VWM (70 V), but SMC (DO-214AB) surface-mount package; 600 W PPPM; higher IPPM (5.9 A). | Requires PCB redesign for SMT layout; better suited for space-constrained consumer electronics vs. legacy through-hole designs. | Select SMBJ70CA when board area is limited and higher surge margin is needed; not drop-in for DO-41 footprints. |
| 1.5KE70CA | Same DO-41 package and bi-directionality; 1.5 kW PPPM; higher VC (121 V); larger case (DO-201AE). | Higher clamping voltage reduces protection margin for 70 V-rated circuits; used where higher energy absorption outweighs VC penalty. | Choose 1.5KE70CA only if system-level testing confirms 121 V clamping is acceptable; larger body requires revised keep-out zone. |
Compared with SMBJ70CA and 1.5KE70CA, BZW04P70B-E3/54 offers optimal balance of DO-41 compatibility, AEC-Q101 qualification, and precise 113 V clamping - making it the preferred choice for automotive and industrial through-hole designs requiring validated reliability and tight voltage control.
Availability
BZW04P70B-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC analog inputs, and telecom line protection requiring stable component supply and long-lifecycle support.
Supply support for BZW04P70B-E3/54 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 automotive-grade validation.
The BZW04P series belongs to Vishay's TransZorb® TVS family, engineered specifically for high-reliability transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where AEC-Q101 compliance and stable clamping are mandatory.
FAQ
What is the clamping voltage of BZW04P70B-E3/54 and how is it measured?
The BZW04P70B-E3/54 has a maximum clamping voltage (VC) of 113 V, measured at a peak pulse current (IPPM) of 3.5 A using the standardized 10/1000 µs double-exponential waveform per IEC 61000-4-5. This value represents the upper limit of voltage seen by downstream circuitry during a surge event and is guaranteed across the full operating temperature range.
Is BZW04P70B-E3/54 suitable for automotive applications?
Yes, BZW04P70B-E3/54 is AEC-Q101 qualified and explicitly rated for automotive use. Its 175 °C maximum junction temperature, low temperature coefficient (0.105 %/°C), and robust glass-passivated junction make it appropriate for engine control units, body control modules, and ADAS sensor interfaces where reliability under thermal and electrical stress is critical.
Does BZW04P70B-E3/54 have polarity markings?
No, BZW04P70B-E3/54 is a bi-directional TVS diode and carries no polarity marking on the DO-41 package. The device functions identically regardless of orientation in the circuit, simplifying placement and eliminating risk of reverse installation - a key advantage for protecting AC-coupled or differential signal paths.
What is the standoff voltage (VWM) of BZW04P70B-E3/54 and why does it matter?
The standoff voltage (VWM) of BZW04P70B-E3/54 is 70.1 V - the maximum continuous DC or RMS voltage the device can withstand without entering avalanche conduction. This parameter defines the safe operating margin below the clamping threshold and must be selected ≥10–20 % above the normal circuit operating voltage to prevent leakage or false triggering.
How does the temperature coefficient affect BZW04P70B-E3/54 performance?
The BZW04P70B-E3/54 has a maximum temperature coefficient of breakdown voltage of 0.105 %/°C. This means VBR increases by up to 0.105 % for every 1 °C rise in junction temperature - ensuring predictable, monotonic clamping behavior across the full -55 °C to +175 °C operating range, which is essential for automotive and industrial thermal stability.
BZW04P70B-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 70.1V
- Voltage - Breakdown (Min):
- 77.9V
- Voltage - Clamping (Max) @ Ipp:
- 113V
- Current - Peak Pulse (10/1000µs):
- 3.5A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
BZW04P70B-E3/54 FAQ
1.How can I place an order for BZW04P70B-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P70B-E3/54 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 BZW04P70B-E3/54 reliable?
The price and inventory of BZW04P70B-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P70B-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04P70B-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P70B-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P70B-E3/54?
BZW04P70B-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P70B-E3/54 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 BZW04P70B-E3/54?
For technical support, including BZW04P70B-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P70B-E3/54 requirements.
6.How does Aetrix verify that BZW04P70B-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04P70B-E3/54 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 BZW04P70B-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04P70B-E3/54?
All BZW04P70B-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P70B-E3/54, 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 BZW04P70B-E3/54 part is unused and in its original packaging.
Return procedure for BZW04P70B-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P70B-E3/54 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
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
