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Toshiba Semiconductor and Storage CRZ22(TE85L,Q)
- Part No.:
- CRZ22(TE85L,Q)
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
CRZ22(TE85L,Q).pdf
- Description:
- DIODE ZENER 22V 700MW SFLAT
- Quantity:
- Payment:
- Shipping:
Inventory:3,893
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Product details
Overview
CRZ22(TE85L,Q) from Toshiba is a silicon epitaxial Zener diode designed for voltage regulation and surge absorption in compact SMT power supply and protection circuits. It delivers a nominal Zener voltage of 22.0 V at 10 mA, with 0.7 W average power dissipation, 30 Ω typical Zener impedance, and operates across −40 to 150 °C junction temperature range. It is commonly used in DC-DC converter feedback networks and overvoltage clamp stages.
For engineers reviewing the CRZ22(TE85L,Q) datasheet, CRZ22(TE85L,Q) pinout, CRZ22(TE85L,Q) application, or CRZ22(TE85L,Q) equivalent, key selection criteria include verified Zener voltage tolerance (±10 %), thermal coefficient (−2 mV/°C typ.), S-FLAT™ package footprint compatibility, and compliance with JEDEC-standard derating curves for transient power handling.
Technical Context
The CRZ22(TE85L,Q) functions as a precision shunt regulator with stable reverse breakdown behavior under controlled test current (IZ = 10 mA). Its −2 mV/°C temperature coefficient ensures predictable drift in mid-range Zener voltages, supporting stable reference generation in industrial power supplies.
Designed for surface-mount assembly in space-constrained applications, it uses Toshiba's proprietary S-FLAT™ package - a molded, leadless, rectangular-outline device with cathode marking and 2.8 mm × 1.2 mm footprint. Thermal resistance is optimized for glass-epoxy PCBs with 6 mm × 6 mm solder land.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 20.0 V (min) to 22.0 V (typ) to 24.0 V (max) at IZ = 10 mA - defines regulation window for feedback or clamping |
| Average Power Dissipation (P) | 0.7 W - sets maximum continuous DC power handling on standard PCB layout |
| Zener Impedance (rd) | 30 Ω (max) at IZ = 10 mA - determines output voltage stability under load variation |
| Temperature Coefficient (αT) | −2 mV/°C (typ) - quantifies VZ drift with ambient temperature change |
| Junction Temperature Range (Tj) | −40 to +150 °C - confirms suitability for extended industrial environments |
| Reverse Current (IR) | 10 μA max at VR = 14.0 V - ensures low leakage in standby or high-impedance sensing nodes |
Pinout & Package
Toshiba S-FLAT™ package: leadless, rectangular, surface-mount, cathode-marked top-side, dimensions 2.8 mm × 1.2 mm × 1.2 mm (L × W × H), weight 0.013 g (typ).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-voltage reference node | Connected to ground or common return in shunt regulator configuration |
| Cathode | Zener breakdown terminal / regulated output node | Connected to input rail or feedback point; carries reverse bias current during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Compact SMT package | S-FLAT™ footprint (2.8 mm × 1.2 mm) enables high-density board layouts without through-hole drilling |
| Stable Zener voltage tolerance | ±10 % at 22 V ensures predictable clamping threshold in overvoltage protection circuits |
| Low thermal coefficient | −2 mV/°C typ. minimizes regulation error drift across −40 to +85 °C operating range |
| Controlled Zener impedance | 30 Ω max supports tight voltage regulation under dynamic load steps in DC-DC feedback loops |
Applications
| Power Supply Feedback Regulation | Overvoltage Clamp Protection |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback or buck-derived auxiliary supplies. IC Role / Device Role / Timing Role: Shunt reference element providing precise 22 V threshold for optocoupler feedback loop. Use Value: Enables ±1.5 % output accuracy over line/load/temperature with minimal external components. | Use Scenario: Protecting downstream ICs from transient surges on 24 V industrial bus lines. IC Role / Device Role / Timing Role: Fast-acting voltage clamp absorbing energy above 24 V peak. Use Value: Limits voltage excursion to ≤24.0 V (max) with <100 ns response, preventing latch-up in 3.3 V/5 V logic rails. |
| Reference Voltage Generation | Signal Level Translation |
Use Scenario: Providing stable bias for op-amp comparators in battery monitoring circuits. IC Role / Device Role / Timing Role: Precision 22 V reference source for analog-to-digital conversion thresholds. Use Value: Delivers <0.5 % long-term drift and <5 ppm/°C thermal drift in sensor interface front-ends. | Use Scenario: Level-shifting control signals between 24 V PLC outputs and 3.3 V microcontroller inputs. IC Role / Device Role / Timing Role: Bidirectional clamping diode limiting signal swing to safe MCU input range. Use Value: Prevents damage from 24 V transients while maintaining clean 0–3.3 V logic transitions via low-capacitance design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C22LT1G | 22 V ±5 % tolerance, 300 mW rating, SOT-23 package (3.0 mm × 1.4 mm) | Lower power rating limits use in sustained clamp scenarios; higher tolerance improves precision but reduces margin for aging | Select when board space allows larger footprint and tighter voltage spec is required |
| MMSZ5248B-TP | 22 V ±5 %, 500 mW, SOD-123 package (3.7 mm × 1.6 mm), 35 Ω ZZ | Higher Zener impedance affects regulation stability under fast load transients; lower P rating requires stricter thermal design | Prefer for cost-sensitive consumer designs where 0.5 W suffices and 35 Ω rd meets system stability targets |
Compared with CRZ22(TE85L,Q), BZX84-C22LT1G offers tighter voltage tolerance but reduced power headroom, while MMSZ5248B-TP trades off impedance and thermal capability for broader distributor availability - both require layout revision due to different footprints and thermal profiles.
Availability
CRZ22(TE85L,Q) is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, and programmable logic controller (PLC) I/O modules requiring stable component supply and long-lifecycle support.
Supply support for CRZ22(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 Japanese semiconductor manufacturer specializing in discrete devices, power electronics, and analog ICs for industrial and automotive markets.
The CRZ22(TE85L,Q) belongs to Toshiba's CRY62–CRZ39 Zener diode family, engineered for high-reliability voltage regulation and transient suppression in compact SMT power systems.
FAQ
What is the Zener voltage specification for CRZ22(TE85L,Q)?
The CRZ22(TE85L,Q) has a Zener voltage range of 20.0 V (minimum) to 22.0 V (typical) to 24.0 V (maximum) measured at 10 mA test current. This ±10 % tolerance reflects the device's classification within the CRZ20 series and is confirmed in Toshiba's official electrical characteristics table for CRZ22(TE85L,Q).
Does CRZ22(TE85L,Q) support high-temperature operation?
Yes, CRZ22(TE85L,Q) is rated for junction temperatures from −40 to +150 °C and storage temperatures over the same range. Its thermal design supports operation in industrial environments when mounted on a 6 mm × 6 mm solder land per Toshiba's recommended layout, enabling reliable performance in motor drive controls and outdoor power equipment.
What package type does CRZ22(TE85L,Q) use?
CRZ22(TE85L,Q) uses Toshiba's proprietary S-FLAT™ surface-mount package - a leadless, rectangular-outline device measuring 2.8 mm × 1.2 mm × 1.2 mm with cathode marking. It is not JEDEC-standardized but shares functional equivalence with SOD-323 in footprint area, though mechanical and thermal characteristics differ.
How does the temperature coefficient affect CRZ22(TE85L,Q) in real-world use?
The CRZ22(TE85L,Q) exhibits a typical temperature coefficient of −2 mV/°C, meaning its Zener voltage decreases by approximately 2 mV per degree Celsius rise in junction temperature. This behavior is well-documented in Toshiba's αT–VZ curve and must be factored into precision reference designs operating across wide ambient ranges.
Is CRZ22(TE85L,Q) RoHS compliant?
Yes, CRZ22(TE85L,Q) complies with EU RoHS Directive 2011/65/EU. Toshiba confirms lead-free terminations and halogen-free molding compound in the S-FLAT™ package. Full compliance documentation, including substance declarations and test reports, is available upon request from Aetrix Electronics for qualifying customers.
CRZ22(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):
- 22 V
- Tolerance:
- ±10%
- Power - Max:
- 700 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 16 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)
CRZ22(TE85L,Q) FAQ
1.How can I place an order for CRZ22(TE85L,Q) through Aetrix?
Please submit a Request for Quotation (RFQ) for CRZ22(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 CRZ22(TE85L,Q) reliable?
The price and inventory of CRZ22(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 CRZ22(TE85L,Q) is usually 5 days.
3.What payment methods are accepted for CRZ22(TE85L,Q)?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CRZ22(TE85L,Q) transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CRZ22(TE85L,Q)?
CRZ22(TE85L,Q) orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CRZ22(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 CRZ22(TE85L,Q)?
For technical support, including CRZ22(TE85L,Q) datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CRZ22(TE85L,Q) requirements.
6.How does Aetrix verify that CRZ22(TE85L,Q) is sourced from the original manufacturer or authorized distributors?
All CRZ22(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 CRZ22(TE85L,Q) meets industry standards.
7.What is the process for return or replacement of CRZ22(TE85L,Q)?
All CRZ22(TE85L,Q) units undergo pre-shipment inspection (PSI). If there is an issue with CRZ22(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 CRZ22(TE85L,Q) part is unused and in its original packaging.
Return procedure for CRZ22(TE85L,Q):
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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