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Toshiba Semiconductor and Storage CRZ30(TE85L,Q)
- Part No.:
- CRZ30(TE85L,Q)
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
CRZ30(TE85L,Q).pdf
- Description:
- DIODE ZENER 30V 700MW SFLAT
- Quantity:
- Payment:
- Shipping:
Inventory:7,439
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Product details
Overview
CRZ30(TE85L,Q) from Toshiba is a silicon epitaxial Zener diode designed for voltage regulation and surge absorption in compact SMT applications. It delivers a nominal Zener voltage of 30.0 V (min 27.0 V, max 33.0 V) at 10 mA test current, with 30 Ω typical Zener impedance, 0.7 W average power dissipation, and operates across −40 to 150 °C junction temperature range.
For engineers reviewing the CRZ30(TE85L,Q) datasheet, CRZ30(TE85L,Q) pinout, CRZ30(TE85L,Q) application, or CRZ30(TE85L,Q) equivalent, key selection criteria include verified Zener voltage tolerance (±10%), thermal stability (αT = 40 mV/°C typ.), low reverse leakage (≤10 μA at 21.0 V), and compatibility with JEDEC-standard S-FLAT™ surface-mount footprint 3-2A1S.
Technical Context
The CRZ30(TE85L,Q) functions as a precision shunt regulator in low-to-medium power circuits, leveraging silicon epitaxial construction for stable breakdown characteristics. Its Zener voltage is specified at 10 mA with tight ±10% tolerance (27.0–33.0 V), and it exhibits a positive temperature coefficient of +40 mV/°C (typical), enabling predictable drift compensation in temperature-sensitive designs.
Designed for transient suppression and reference stabilization, the device supports continuous operation up to 150 °C junction temperature and handles non-repetitive peak reverse power surges per PRSM–tW curves. Its 0.7 W average power rating requires thermal derating above 25 °C ambient, with recommended maximum junction temperature limited to 120 °C for high-reliability operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 27.0–33.0 V at IZ = 10 mA; ensures stable reference within ±10% tolerance under nominal bias |
| Zener Impedance (rd) | 30 Ω (typ.) at IZ = 10 mA; maintains low dynamic resistance for minimal regulation error during load transients |
| Average Power Dissipation (P) | 0.7 W at Ta = 25 °C; defines maximum continuous DC power handling on standard PCB land pattern |
| Junction Temperature Range (Tj) | −40 to 150 °C; supports industrial and automotive under-hood environments with proper thermal design |
| Reverse Leakage Current (IR) | ≤10 μA at VR = 21.0 V; guarantees low standby power loss in high-impedance bias networks |
| Temperature Coefficient (αT) | +40 mV/°C (typ.); enables predictable voltage drift for temperature-compensated references |
| Forward Voltage (VF) | 1.0 V max at IF = 0.2 A; confirms low-conduction drop when used bidirectionally or in clamp configurations |
Pinout & Package
CRZ30(TE85L,Q) uses Toshiba's S-FLAT™ package (JEITA package code 3-2A1S), a 2-pin surface-mount plastic molded case measuring 2.8 × 1.2 × 1.2 mm (L × W × H), with cathode marked by a band. Weight is 0.013 g (typ.).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to lower-potential node | Enables standard diode conduction path; must be routed with adequate current-carrying trace width for 0.2 A surge |
| Cathode | Current exit terminal in forward bias; Zener breakdown terminal in reverse bias | Marked with band; serves as regulated output node in shunt configuration; ties to reference or clamping rail |
Key Features
| Feature | Design Value |
|---|---|
| Compact SMT Package | S-FLAT™ (3-2A1S) footprint enables high-density PCB layouts without through-hole drilling or reflow compatibility issues |
| Stable Zener Voltage Tolerance | ±10% (27.0–33.0 V) ensures predictable regulation across production lots and temperature ranges |
| Low Zener Impedance | 30 Ω typical minimizes output voltage variation under varying load currents in feedback or reference circuits |
| High Junction Temperature Rating | 150 °C max Tj supports operation in thermally constrained enclosures with minimal heatsinking |
| Controlled Temperature Drift | +40 mV/°C typical αT allows accurate modeling and compensation in precision analog systems |
Applications
| Power Supply Overvoltage Clamp | Industrial Sensor Reference Voltage |
|---|---|
Use Scenario: Protects downstream LDOs and microcontrollers from input rail surges exceeding 33 V in 24 V industrial power supplies. IC Role / Device Role / Timing Role: Shunt clamping element placed between supply rail and ground, conducting only during overvoltage events. Use Value: Limits transient voltage to ≤33 V with <10 μA leakage at 21 V, preserving system integrity without loading normal operation. | Use Scenario: Provides stable 30 V reference for 16-bit ADC front-end biasing in factory-floor temperature and pressure transmitters. IC Role / Device Role / Timing Role: Precision shunt voltage reference supplying excitation current to bridge sensors via series resistor. Use Value: Delivers ±10% voltage accuracy and +40 mV/°C drift predictability, enabling software-based temperature compensation. |
| Automotive ECU Voltage Supervisor | Telecom Line Interface Surge Protection |
Use Scenario: Monitors battery-supplied 24 V rails in engine control units, triggering reset logic when voltage exceeds safe threshold. IC Role / Device Role / Timing Role: Zener-based comparator input reference, interfacing with voltage supervisor ICs like TLV809. Use Value: Maintains 30 V reference with 30 Ω impedance to ensure fast response to overvoltage faults while minimizing quiescent current draw. | Use Scenario: Absorbs lightning-induced surges on 48 V telecom line interfaces before reaching PHY ICs and isolation transformers. IC Role / Device Role / Timing Role: Primary surge absorber in parallel with TVS diodes, handling repetitive low-energy transients. Use Value: Withstands 0.7 W average dissipation and non-repetitive PRSM pulses per Toshiba's tW curves, extending protection circuit lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C30LT1G | Zener voltage 28.5–31.5 V (±5%), 300 mW PD, SOT-23 package, 50 Ω rd | Lower power rating and higher impedance limit use to low-current references, not surge clamping | Select when board space is critical and power stress is <300 mW; verify thermal margin on 0.7 W duty cycles |
| 1N4745A | Zener voltage 28.5–31.5 V (±5%), 1.0 W PD, DO-41 through-hole, 13 Ω rd | Through-hole mounting and higher power require PCB redesign; lower impedance improves regulation but increases size | Choose for legacy through-hole designs or where 1.0 W surge headroom and 13 Ω regulation are mandatory |
Compared with BZX84-C30LT1G and 1N4745A, CRZ30(TE85L,Q) uniquely balances 0.7 W SMT power handling, 30 Ω impedance, and ±10% tolerance in a 2.8 mm × 1.2 mm footprint-making it optimal for space-constrained industrial clamping where 1N4745A's size is prohibitive and BZX84-C30LT1G's power rating is insufficient.
Availability
CRZ30(TE85L,Q) is available at Aetrix Electronics and suitable for industrial sensor modules, automotive ECUs, telecom line interfaces, and compact power supply designs requiring stable component supply and long-lifecycle support.
Supply support for CRZ30(TE85L,Q) 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
Toshiba Electronic Devices & Storage Corporation is a global semiconductor manufacturer specializing in discrete devices, power electronics, and analog ICs for industrial, automotive, and consumer applications.
The CRZ30(TE85L,Q) belongs to Toshiba's CRY/CRZ series of silicon epitaxial Zener diodes, engineered for reliable voltage regulation and surge absorption in compact SMT assemblies across harsh-environment applications.
FAQ
What is the Zener voltage tolerance of CRZ30(TE85L,Q)?
The CRZ30(TE85L,Q) has a Zener voltage range of 27.0 V to 33.0 V at 10 mA test current, corresponding to a ±10% tolerance around the nominal 30.0 V rating. This tolerance is guaranteed across operating temperatures and is confirmed in Toshiba's official electrical characteristics table for the CRZ30 variant. The CRZ30(TE85L,Q) maintains this specification under standard test conditions (Ta = 25 °C) and is validated per Toshiba's production screening.
Does CRZ30(TE85L,Q) support high-temperature operation?
Yes, CRZ30(TE85L,Q) is rated for junction temperatures from −40 °C to +150 °C, with Toshiba recommending operation below 120 °C for high reliability. Its thermal resistance and derating curves are defined for standard PCB mounting (6 mm × 6 mm solder land on glass-epoxy board). The CRZ30(TE85L,Q) is routinely deployed in industrial motor drives and automotive under-hood modules where ambient temperatures exceed 85 °C.
What is the maximum reverse leakage current for CRZ30(TE85L,Q)?
The CRZ30(TE85L,Q) specifies a maximum reverse leakage current of 10 μA at a reverse voltage of 21.0 V (70% of nominal VZ). This value is measured at Ta = 25 °C and reflects the device's ability to minimize standby power loss in high-impedance reference networks. The CRZ30(TE85L,Q) maintains this performance across its full storage temperature range (−40 to 150 °C).
Is CRZ30(TE85L,Q) RoHS compliant?
Yes, CRZ30(TE85L,Q) complies with the EU RoHS Directive (2011/65/EU) and related environmental regulations. Toshiba confirms lead-free termination and halogen-free molding compound for this part. Compliance documentation-including material declarations and test reports-is available through Toshiba's official environmental portal. CRZ30(TE85L,Q) meets RoHS requirements without exemptions.
What package type does CRZ30(TE85L,Q) use?
CRZ30(TE85L,Q) uses Toshiba's proprietary S-FLAT™ surface-mount package, designated JEITA code 3-2A1S. It measures 2.8 mm × 1.2 mm × 1.2 mm and features a cathode band marking. The CRZ30(TE85L,Q) is compatible with standard reflow profiles for plastic-molded SMT components and requires no special assembly processes beyond IPC-J-STD-020 guidelines.
CRZ30(TE85L,Q) Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- -
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 30 V
- Tolerance:
- ±10%
- Power - Max:
- 700 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 21 V
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 200 mA
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- S-FLAT (1.6x3.5)
CRZ30(TE85L,Q) FAQ
1.How can I place an order for CRZ30(TE85L,Q) through Aetrix?
Please submit a Request for Quotation (RFQ) for CRZ30(TE85L,Q) 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 CRZ30(TE85L,Q) reliable?
The price and inventory of CRZ30(TE85L,Q) are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CRZ30(TE85L,Q) is usually 5 days.
3.What payment methods are accepted for CRZ30(TE85L,Q)?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CRZ30(TE85L,Q) transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CRZ30(TE85L,Q)?
CRZ30(TE85L,Q) orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CRZ30(TE85L,Q) 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 CRZ30(TE85L,Q)?
For technical support, including CRZ30(TE85L,Q) datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CRZ30(TE85L,Q) requirements.
6.How does Aetrix verify that CRZ30(TE85L,Q) is sourced from the original manufacturer or authorized distributors?
All CRZ30(TE85L,Q) 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 CRZ30(TE85L,Q) meets industry standards.
7.What is the process for return or replacement of CRZ30(TE85L,Q)?
All CRZ30(TE85L,Q) units undergo pre-shipment inspection (PSI). If there is an issue with CRZ30(TE85L,Q), 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 CRZ30(TE85L,Q) part is unused and in its original packaging.
Return procedure for CRZ30(TE85L,Q):
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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